Redis jobs

...must be built using modern scalable technologies with no compromise on architecture, performance, security, or code quality. ## Frontend * React.js * * TypeScript * Tailwind CSS --- ## Backend * Node.js * NestJS (preferred) * REST APIs * WebSocket/event architecture where needed --- ## Database * PostgreSQL --- ## Infrastructure * VPS deployment (Hostinger) * Docker * NGINX * Redis * CI/CD pipelines --- # Responsibilities The selected developer/architect will be fully responsible for: ### Product & System Architecture * End-to-end application architecture * Multi-tenant system design * Database architecture * Scalable backend design * Security architecture * RBAC/permission architecture --- ### UI/UX & Product Flows * SaaS dashboard UX * Workflow desig...

...Current Limitations Current system behaves mostly like: ❌ Basic email sequences We want: ✅ Intelligent behavior-driven automation Problems today: Linear flows only No persistent user memory No behavior adaptation No conversion awareness No stop logic No re-entry logic Weak analytics Tech Stack Frontend React Backend Node.js Express Database MongoDB Infrastructure PM2 Preferred (Recommended) Redis queues Event-driven architecture Worker-based processing We want a system capable of scaling long-term. MILESTONE 1 — Core Automation Engine Upgrade ($200) Goal Transform current linear campaigns into a behavior-aware automation engine. 1. Goals / Conversion Engine Purpose Allow campaigns to define conversion goals. Examples: Meeting booked Link clicked Tag added Docum...

Our booking bot works, but not often enough. Failed submissions, rate-limit timeouts, and disappearing sessions keep the overall success rate far below what it should be. My overriding goal is to lift that success rate sharply, and the weak spot I feel most every day is session and proxy management need to reinforce: • Redis Cloud will anchor rate-limiting, task coordination, and worker health. • proxy and session rotation must guarantee consistency across long scraping and booking runs. • Smart retry logic and queue design must catch transient failures and recycle tasks automatically. • Optional hooks to services such as Apify or are welcome if they improve throughput or stability.

...collections. Export ads data (CSV, PDF). Alerts/notifications for new competitor ads. Paid membership system (for premium searches). Technical Skills Required: Strong experience with Node.js / Express (or Python/Django/Flask) for backend React / / Vue.js for frontend Experience with Facebook Ad Library API (or similar ad intelligence APIs) Database: MongoDB / PostgreSQL / MySQL Caching: Redis / Memcached Deployment: AWS, Vercel, or DigitalOcean Knowledge of API rate limits, access tokens, and data security Deliverables: Fully functional website similar to SpyHero. Source code + documentation. API integration (Meta Ad Library or equivalent). Basic admin panel to manage API tokens and monitor searches. Instructions for hosting and deployment. What I’m Looki...

...itineraries up to 9 flights Up to 9 passengers in one booking Real-time flight comparisons AI-generated travel recommendations Hotel recommendations with reasoning Date optimization for cheaper fares Airline policy understanding Smart airport suggestions AI travel assistant behavior similar to a human travel expert Technical Expectations Preferred stack experience: Python Node.js FastAPI WebSockets Redis PostgreSQL Vector Databases AWS / GCP Scalable cloud infrastructure Frontend understanding is a plus. Experience with: AI SaaS products Production AI systems High-scale systems Travel or OTA platforms will be prioritized. What We Expect From You Please apply ONLY if you can: Architect complex AI systems Build scalable production-ready infrastructure Handle advanced API i...

...Frontend Systems: Developing highly responsive, state-driven mobile and web interfaces utilizing React, React Native, or Vue. • Cloud & Infrastructure: Orchestrating containerized deployments via Docker/Kubernetes, maintaining secure multi-region AWS/GCP cloud environments, and optimizing CI/CD pipelines. • Database Management: Managing high-throughput transactional databases (PostgreSQL, MongoDB, and Redis caching systems) with strict security compliance. Salary Tiers & Compensation (By Hub Location) Salaries are pegged to premium regional market highs and competitive tech benchmarks. Final offers are determined by technical tier placement during our vetting process: Salary Tiers & Compensation (By Location & Work Track) Salaries are pegged to premium...

...Experience with hosted checkout gateways preferred. Current evaluation includes: Stripe Checkout CommBank MPGS eWAY other modern PCI-compliant hosted solutions Freelancer should recommend: most stable Magento 2 option lowest long-term maintenance approach modern 3DS2-compatible implementation Infrastructure / Technical Requirements Preferred stack: Magento 2.4.x PHP 8.x OpenSearch or Elasticsearch Redis Composer-based deployment Cloudflare compatibility production/staging separation cron configuration SSL hardening performance optimisation Deliverables Successful deployment must include: fully operational Magento 2 store migrated production data functioning product/inventory integration functioning payment gateway Office365 mail integration tested checkout flow staging en...

...SLA compliance. Inventory & Assets: Track cloud infrastructure assets and ownership metadata. Personnel & Policy Lifecycle: Monitor user systems access lists, training completions, and policy sign-offs. Risk & Vendor Reviews: Track corporate risks and third-party vendor safety logs. Tech Stack: Python (FastAPI, Pydantic) PostgreSQL (JSONB tracking) Async Task Orchestration (Temporal / Celery / Redis) To Apply: Briefly highlight your experience building complex third-party API integration pipelines or handling security/compliance data vectors....

Full-Stack Engineer Tech stack (must-have) Frontend: React 18, TypeScript (strict), Vite, Mantine 8, CSS Modules, React Router 7 Backend (Node): Node.js, TypeScript, Medplum bots (FHIR vmcontext runtime) Backend (Python): FastAPI, httpx, async Python Data: FHIR R4 (Composition, Encounter, Invoice, Observation, Condition, etc.), PostgreSQL, Redis AI: Google Gemini 2.5 API (Pro multimodal + Flash structured outputs), Anthropic Claude API Infra: Docker, nginx, GitHub Actions Integrations: Stripe, or Jitsi (telemedicine), Stedi,

...well over 1000 concurrent requests. The gateway must do the following: • Route and filter incoming traffic to each service with minimal latency. • Enforce a Redis-backed, distributed rate limiter that throttles requests per API key. • Authenticate and authorize every sensitive action (user login, order placement, payment processing, plus any other secure endpoints) with JWT tokens via Spring Security. Please implement this in the familiar Controller-Service-Repository style so future feature work remains straightforward. Unit tests for the limiter and security filters are expected, and a short README explaining local setup, Redis clustering tips, and how to adjust the throttle thresholds will round out the delivery. Success means the gateway consist...

1. 问题概述（核心根因） 项目当前实时牌局数据双存：服务端内存（实时对局）+ Redis缓存（兜底同步）。服务器部署商用安全防护服务，会拦截系统底层内存读取与导出行为。 现有后台监控直接抓取服务器内存数据展示牌局，被安全策略拦截，导致运营后台牌型/对局状态与用户客户端不一致、数据错乱滞后，无法正常监控与复盘对局。 硬性前提：禁止关闭、降级、绕过安全防护服务，必须在原有安全策略生效的前提下解决数据不同步问题。 2. 现有架构缺陷 - 后台数据读取路径单一，仅依赖底层内存直读，极易被安全服务拦截； - 内存与Redis实时同步机制不严谨，高并发下存在数据时差、数据不一致隐患； - 无安全合规的后台数据查询通道，无数据校验、异常告警机制。 3. 开发人员资质要求 需专业棋牌服务端开发，具备：棋牌对局逻辑经验、内存与Redis缓存同步实战经验、服务器安全策略兼容调试经验，可独立完成排查、改造、上线全流程。 4. 核心开发需求（必做） 4.1 问题排查 定位安全服务具体拦截规则、拦截节点，排查双存储同步漏洞，输出根因排查报告。 4.2 重构后台数据读取方案（核心重点） 废弃原有底层内存直读高危逻辑，搭建安全合规的数据获取通道： - 优先方案：对后台监控进程/接口配置安全服务白名单，放行合法业务数据查询，不影响整体安全防护； - 兜底方案：强化Redis实时同步，实现内存合规读取优先、Redis自动兜底的双路读取机制。 4.3 双数据源同步优化 - 对局发牌、出牌、操作、状态变更等所有行为，实时同步内存与Redis双数据源，实现毫秒级一致； - 增加定时数据校验、自动纠错机制，自动修复双源数据偏差； - 新增数据拦截、同步失败、数据错乱异常日志与告警能力。 4....

1. 问题概述（核心根因） 项目当前实时牌局数据双存：服务端内存（实时对局）+ Redis缓存（兜底同步）。服务器部署商用安全防护服务，会拦截系统底层内存读取与导出行为。 现有后台监控直接抓取服务器内存数据展示牌局，被安全策略拦截，导致运营后台牌型/对局状态与用户客户端不一致、数据错乱滞后，无法正常监控与复盘对局。 硬性前提：禁止关闭、降级、绕过安全防护服务，必须在原有安全策略生效的前提下解决数据不同步问题。 2. 现有架构缺陷 - 后台数据读取路径单一，仅依赖底层内存直读，极易被安全服务拦截； - 内存与Redis实时同步机制不严谨，高并发下存在数据时差、数据不一致隐患； - 无安全合规的后台数据查询通道，无数据校验、异常告警机制。 3. 开发人员资质要求 需专业棋牌服务端开发，具备：棋牌对局逻辑经验、内存与Redis缓存同步实战经验、服务器安全策略兼容调试经验，可独立完成排查、改造、上线全流程。 4. 核心开发需求（必做） 4.1 问题排查 定位安全服务具体拦截规则、拦截节点，排查双存储同步漏洞，输出根因排查报告。 4.2 重构后台数据读取方案（核心重点） 废弃原有底层内存直读高危逻辑，搭建安全合规的数据获取通道： - 优先方案：对后台监控进程/接口配置安全服务白名单，放行合法业务数据查询，不影响整体安全防护； - 兜底方案：强化Redis实时同步，实现内存合规读取优先、Redis自动兜底的双路读取机制。 4.3 双数据源同步优化 - 对局发牌、出牌、操作、状态变更等所有行为，实时同步内存与Redis双数据源，实现毫秒级一致； - 增加定时数据校验、自动纠错机制，自动修复双源数据偏差； - 新增数据拦截、同步失败、数据错乱异常日志与告警能力。 4....

...Backend Performance Issues (Laravel) We need optimization for: Slow product listing page in admin panel Heavy database queries Poor pagination performance Inefficient Eloquent queries Slow counting/statistics queries Caching improvements Queue/job optimization API response optimization Redis/database optimization Meilisearch indexing optimization Better cron/sync handling Important Requirements You MUST have experience with: optimization Laravel optimization Large-scale databases API-heavy systems Redis caching Meilisearch or similar search engines SQL query optimization VPS/server optimization SSH and GitHub workflows Linux server management Experience with large e-commerce systems is highly preferred. What We Expect Real debugging and analysis Finding the ROOT cau...

...Module: Refund status tracking: - Requested - In Process - Approved - Refunded - Rejected Wallet ledger should maintain: - Debit/Credit history - Refund entries - Transaction logs Preferred Tech Stack: - Backend: Laravel or Node.js - Frontend: React preferred - Database: MySQL/PostgreSQL Server & Deployment: Deployment required on VPS server. Preferred setup: - Ubuntu 22.04 - Nginx - SSL - Redis cache - Cloudflare compatible Developer should handle: - Complete deployment - Server setup - Domain connection - Production setup Important: - Simple UI is okay - Fast search & booking is priority - Mobile responsive required - Clean scalable code required Deliverables: - Complete source code - Admin panel - Agent panel - API integration - VPS deployment - Basic documentat...

...someone who understands real production environments, server-level debugging, database optimization, API performance, caching strategies, and scalable architecture. ## Tech Stack * * Laravel * MySQL * Redis * Meilisearch * PM2 * Linux VPS * SSH * GitHub * Cloudflare * CyberPanel / OpenLiteSpeed ## Main Goals You will be responsible for identifying and permanently fixing frontend and backend performance issues, including: * Slow page loading * High TTFB * Database bottlenecks * API delays * production optimization * Laravel query optimization * Caching implementation * Redis optimization * Meilisearch optimization * Server resource optimization * Background jobs & cron issues * PM2 and deployment stability * Memory leaks / CPU spikes * Frontend hydration/runtime ...

...admin dashboard, and several core learning modules. Scope of work 1. Deep-dive code and infrastructure review (front-end bundles, server logic, Mongo queries, caching strategy). 2. Concrete action plan outlining whether a targeted optimisation or a partial rebuild offers the better ROI. 3. Implementation of approved fixes: query rewrites, index tuning, React performance tweaks, cache layer (Redis or similar), and cleanup of unused assets. 4. UI/UX refinement with lightweight component library or styled-components to unify look and feel, plus responsive QA. 5. Stress-test and benchmark results against current metrics to confirm improvements. Please return: • An estimated timeline with milestones, • A ballpark cost, • Your recommendation on optimisa...

...PostgreSQL / Redis / Railway Looking for a backend developer to help complete Milestone 1 of a modern multi-role platform. Current progress: * Frontend platform already exists * Supabase project and core tables already exist * RLS/security policies already created * Architecture documentation already written * Route structure, RBAC planning, event standards, queue standards, and backend execution order already documented Tech stack: * NestJS * PostgreSQL * Prisma * Redis / BullMQ * JWT Auth * Railway * Supabase * WebSockets What needs to be completed: * Build the NestJS backend foundation * Connect backend properly to existing Supabase/Postgres database * Validate/refine schema and migrations * Build authentication + refresh token flow * Implement RBAC + permission ...

...cleanup work The objective is to achieve a lightweight, secure, and highly optimized Magento installation without inherited issues, memory leaks, obsolete configurations, or unstable code. Technical Scope 1. Clean Magento Installation Fresh Magento 2.4.8 + PHP 8.3 setup No reuse of old core files Remove unnecessary US/Asia-focused Magento modules and services 2. Infrastructure & Performance Stack Redis (sessions + cache) OpenSearch 2.x Varnish FPC (disabled during development) 3. Theme & Store Structure Clean installation of MGS Claue Parent Theme + Child Theme Rebrand child theme as “deepinvogue” Configure dual-store structure: Romania (RON / RO) International (EUR / EN) 4. Extensions & Compatibility Install and validate required extensions under PHP 8...

...is strictly about game-data processing: capturing every wager, spin, and outcome as it happens on the web platform, turning those events into useful, queryable metrics, and pushing live updates to our front-end dashboards. Here’s what I expect to receive: • An event-driven backend (Node.js, Python, or a comparable stack) that ingests game events via WebSocket or REST. • A fast in-memory layer—Redis or similar—for sub-second aggregation. • A durable store (PostgreSQL, MySQL, or MongoDB) that keeps historical game logs with indexing for later analytics. • API endpoints that let the front-end request live KPIs such as active players, RTP, and win-loss per title. • Documentation and a short hand-off call showing how to deploy, scale...

...type-safe languages (e.g., Go, TypeScript/Node.js, or C#) with a strong understanding of concurrency patterns and async programming. Frontend Mastery: Advanced knowledge of modern JavaScript frameworks (specifically React, , or Vue), state management, and component architecture. Data Layer: Strong hands-on experience with relational databases (PostgreSQL or MySQL) and key-value stores (Redis) for caching and session management. Testing Culture: A proven track record of writing clean, maintainable code backed by robust unit, integration, and end-to-end test suites. Nice to Have Experience with real-time streaming protocols (WebSockets, Server-Sent Events, or WebTransport). Familiarity with containerization and orchestration tools (Docker, Kubernetes) and CI/CD pipelines. Exp...

...Cursor) for speed without sacrificing quality. Must have: - 5+ years backend, with strong, idiomatic Go (goroutines, channels, context, profiling — concurrency without races/deadlocks). - Proven track record scaling production systems: caching, queues, DB/query optimization, horizontal scaling, observability. - Solid grasp of SSR web architecture and REST/GraphQL APIs. - Relational databases + Redis; comfortable reasoning about performance. - Genuine testing discipline and clean, documented code. Nice to have: - Full-stack comfort with React / / shadcn. - Real-time at scale (WebSocket/SSE, QUIC/HTTP-3, WebTransport). - Experience migrating a legacy stack (e.g. Node/Vue) to a Go SSR architecture. - Analytical/columnar DBs (e.g. ClickHouse), Docker, CI/CD, cloud/k8s. Enga...

...Full migration of business listings, lead generation modules, and news/blog content. Rebuild the existing Admin Dashboard (FilamentPHP is preferred for this) to maintain current controls over users, ad banners, and transaction logs. 6. "Server Environment Setup:" "The developer is responsible for configuring the production environment (Nginx/Apache, PHP 8.x, MySQL, Supervisor for queues, and Redis for caching). Any server-side configuration required for the app to go live is considered part of this project." 7. The project must include a strategy for zero-downtime deployment. If the developer requires a staging environment, they must set it up and document the deployment pipeline." Any cleanup required to map old data (CodeIgniter schema) to the new La...

...Data Layer (Cassandra, PostgreSQL, Redis) Media + Search + Observability WebRTC Stack • Infrastructure: Are you planning to deploy on a our server • Version: need the latest official Signal Server (Java-based) • Customization : rebrand the app or simply run a private instance Configuration & Customization: Set up config .yml for production Optional branding or private instance configuration ________________________________________ Core System Requirements The official Server code is Java application requiring several dependencies: • Java Runtime: Spring Boot (The latest versions typically require Java 24) or Erlang/Elixir (Temurin distribution), though older guides (v1.88) used Java 11. • Databases: PostgreSQL & FoundationDB / DynamoDB. • C...

...Data Layer (Cassandra, PostgreSQL, Redis) Media + Search + Observability WebRTC Stack • Infrastructure: Are you planning to deploy on a our server • Version: need the latest official Signal Server (Java-based) • Customization : rebrand the app or simply run a private instance Configuration & Customization: Set up config .yml for production Optional branding or private instance configuration ________________________________________ Core System Requirements The official Server code is Java application requiring several dependencies: • Java Runtime: Spring Boot (The latest versions typically require Java 24) or Erlang/Elixir (Temurin distribution), though older guides (v1.88) used Java 11. • Databases: PostgreSQL & FoundationDB / DynamoDB. • C...

...product certificates upload Reports and analytics Arabic and English support RTL support Responsive mobile-friendly design Secure authentication Role-based access control Notification system Email notifications Future WhatsApp/SMS support Preferred technical stack: Backend: Laravel 11 / PHP 8.3 Frontend: React.js or Admin panel: Laravel Filament Database: MySQL or PostgreSQL Cache/queues: Redis Authentication: Laravel Sanctum or Passport Hosting: AWS / DigitalOcean / Cloudways Storage: AWS S3 or DigitalOcean Spaces Payment gateway: Paymob, Fawry, PayTabs, or Stripe The freelancer must provide: Complete source code Clean database structure Deployment on server Admin guide Basic documentation Bug fixing support Scalable architecture for future mobile app and multi-country expa...

...product certificates upload Reports and analytics Arabic and English support RTL support Responsive mobile-friendly design Secure authentication Role-based access control Notification system Email notifications Future WhatsApp/SMS support Preferred technical stack: Backend: Laravel 11 / PHP 8.3 Frontend: React.js or Admin panel: Laravel Filament Database: MySQL or PostgreSQL Cache/queues: Redis Authentication: Laravel Sanctum or Passport Hosting: AWS / DigitalOcean / Cloudways Storage: AWS S3 or DigitalOcean Spaces Payment gateway: Paymob, Fawry, PayTabs, or Stripe The freelancer must provide: Complete source code Clean database structure Deployment on server Admin guide Basic documentation Bug fixing support Scalable architecture for future mobile app and multi-country expa...

...structured JSON/Markdown report generator designed for Claude AI analysis • Telegram alerts, dashboard (Streamlit), and global kill switch • Full audit trail (PostgreSQL) meeting SEBI 5-year retention requirements • Paper trading mode for shadow testing before going live REQUIRED SKILLS Python 3.11+ • asyncio / uvloop • Shoonya NorenRestApiPy • picows • QuestDB or InfluxDB • PostgreSQL + TimescaleDB • Redis • FastAPI • pandas-ta • Docker FULL TECHNICAL REQUIREMENTS A complete 28-page Technical Requirements Document (v2.0) will be shared — covering every module with stack choices, API contracts, code patterns, database schemas, latency budgets, and SEBI compliance checklist. No ambiguity. BUDGET: Open to disc...

...self-contained docker-compose stack that spins up a brand-new Immich instance on a fresh server. The goal is to be able to clone the repo, run docker-compose up -d, and have Immich reachable on its default port with all volumes, environment variables, and network settings correctly wired. Key points • This is for a first-time installation, not an update or a troubleshooting exercise. • I do not need Redis, Nginx, or any other companion containers right now—just the core Immich services and the database it requires. If PostgreSQL is still the standard backend, please include it; if Immich now supports other options, feel free to suggest the simplest stable choice. • Provide a concise README or inline comments explaining any configurable values (.env sty...

...application that lets me see what is happening at each device the moment it happens. The core of the build is a full-stack solution: a React / front-end talking to a Node.js or FastAPI back-end, with MQTT handling the ingestion stream. Data persistence will live in PostgreSQL with the TimescaleDB extension so we can store high-frequency time-series readings while still keeping queries snappy; Redis will sit in front for real-time queues and caching. The most critical values that must update in real time are TDS and Temperature, though the schema should already accommodate pH, turbidity and any future metrics so I can turn those on without major refactoring. Multi-tenancy is essential. Right now I only need two roles—Admin and Manager—but the RBAC system must be f...

...already built these systems before and can legally reuse or adapt their previous code modules to finish what is missing. Any reused code must be code you own or have the legal right to reuse. We do not want stolen code, copied private repo code, or code from a previous employer unless you have written permission to reuse it. Current Stack Backend: Node.js, Express, PostgreSQL, DragonflyDB or Redis, Mobile App: React Native, TypeScript Admin Dashboard: React, Vite, Tailwind, Ant Design Payments: PayPal server-side foundation Target Cloud: AWS What Is Already Done The current app already has user registration, login, OTP verification, JWT auth, admin login, KYC upload, and admin KYC review foundation. KYC is correctly treated as required for payouts and withdrawals, not ...

...Parquet inside S3, queried locally through DuckDB/Polars and cached in Redis. • Train and serve forecasts with LightGBM and Croston/TSB, orchestrated by Airflow. • Ship a single-node pipeline that is production-ready yet cleanly abstracted for a 2–4 week lift to PySpark on EMR Serverless when volumes grow. • Expose the pipeline through createServerFn so the existing React storefront can request forecasts in real time. What must be fully exercised by end-to-end tests (Playwright + Vitest + pytest): • Data ingestion & processing • Machine-learning prediction paths • Data storage & retrieval • UI-to-API round-trips across the entire flow Deliverables 1. Terraform definitions and IAM policies for S3, Redis/Elas...

I am kicking off an AI-powered surveillance and face-recognition platform and want to start on solid ground. The goal is a clean, production-ready project structure that stitches together every piece of the stack so my team can focus on feature work rather than boilerplate. Tech stack that must come wired in: • Backend – Python 3.11, FastAPI, SQLAlchemy + Alembic, PostgreSQL, Redis, WebSocket • AI layer – YOLOv8 (people detection / counting), DeepSORT (tracking), RetinaFace + InsightFace-ArcFace (face detection / recognition), FAISS for vector search, OpenCV to pull RTSP streams • Frontend – 15 with TypeScript, Tailwind CSS, Recharts for dashboards • Infrastructure – Docker, docker-compose, NVIDIA CUDA runtime for GPU inference...

...social platform focused on: expert discovery realtime matching monetized audio communication wallet & billing systems scalable social infrastructure This is a serious long-term startup project — not a basic MVP. We are looking for an experienced full-stack development team or agency with strong expertise in: Flutter WebRTC Node.js / TypeScript Realtime systems Redis PostgreSQL Scalable backend architecture Premium mobile UI/UX The product architecture is designed to support future expansion into: video calling group rooms live streaming creator ecosystem features --- Core Features Required Authentication Mobile OTP login JWT authentication Session/device management Rate limiting & abuse prevention Us...

...already built these systems before and can legally reuse or adapt their previous code modules to finish what is missing. Any reused code must be code you own or have the legal right to reuse. We do not want stolen code, copied private repo code, or code from a previous employer unless you have written permission to reuse it. Current Stack Backend: Node.js, Express, PostgreSQL, DragonflyDB or Redis, Mobile App: React Native, TypeScript Admin Dashboard: React, Vite, Tailwind, Ant Design Payments: PayPal server-side foundation Target Cloud: AWS What Is Already Done The current app already has user registration, login, OTP verification, JWT auth, admin login, KYC upload, and admin KYC review foundation. KYC is correctly treated as required for payouts and withdrawals, not ...

...with APIs - Replacing mock/demo data with live data - Implementing loading/error states - + FCM integration - Coordinating with frontend developer ### Admin Panel Build a simple 3-screen React admin panel: - Walker verification & approval - User/walker management - Reports & disputes queue --- ## Technology Stack - Node.js - NestJS - TypeScript - PostgreSQL + PostGIS - Prisma ORM - Redis - BullMQ - - React - Firebase - Cloudflare - Tranzila (payments) --- ## Project Details **Fixed Price:** ~$4,400 **Timeline:** 8–9 weeks **Potential:** Long-term work after MVP launch --- ## Requirements ### Must Have Experience With: - NestJS - PostgreSQL - Production backend systems - Flutter integration - Payment processing - Real-time systems (WebSockets, messag...

Backend:- Node.js (v18+) MongoDB / Mongoose Redis / BullMQ AWS S3 Storage Agora Voice/Video SDK Android:- Kotlin (Core Logic) Java (Legacy Modules) XML / Material Design UI Client Firebase FCM AWS S3 Native SDK Agora Voice/Video RTC Razorpay Payment SDK check full detail in

Automated Terraform infrastructure deployments, achieving a 97% security score in CSPM, ensuring cloud infrastructure met enterprise-grade security and com...including EMR, WAF, GuardDuty, and Global Accelerator, supporting a highly available and secure multi-environment setup. Managed hybrid deployments spanning on-premises and AWS Serverless environments, enabling the team to maintain minimum-downtime releases across infrastructure types. Installed and configured a distributed data ecosystem — including Hadoop (HDFS/YARN), Spark, Hive, Kafka, Trino, Redis, PostgreSQL, and OpenSearch — across standalone and multi-node cluster environments. Diagnosed and resolved deployment failures stemming from missing environment variables, database connectivity issues, and service st...

...realtime 1-to-1 audio social platform focused on: expert discovery realtime matching monetized audio communication wallet & billing systems scalable social infrastructure This is a serious long-term startup project — not a basic MVP. We are looking for an experienced full-stack development team or agency with strong expertise in: Flutter WebRTC Node.js / TypeScript Realtime systems Redis PostgreSQL Scalable backend architecture Premium mobile UI/UX The product architecture is designed to support future expansion into: video calling group rooms live streaming creator ecosystem features --- Core Features Required Authentication Mobile OTP login JWT authentication Session/device management Rate limiting & abuse prevention User Profiles Profile ...

...manual work as much as possible. --- # SCALABILITY REQUIREMENT Initial Phase: * MBBS only Future Expansion: * BDS * BAMS * BHMS * BUMS * Veterinary * AYUSH counselling without rebuilding the architecture. --- # RECOMMENDED TECH STACK ## Backend * Python FastAPI ## Database * PostgreSQL ## Scraping * Playwright + BeautifulSoup ## Data Processing * Pandas ## Queue System * Celery + Redis ## Frontend * / React ## Cloud Storage * AWS S3 / DigitalOcean Spaces --- # IMPORTANT DEVELOPMENT APPROACH The system should be built as: * Data-first architecture * Modular parser system * Automation-focused platform * AI-enhanced prediction engine NOT as a simple static predictor website. --- # FINAL GOAL Build a scalable and highly automated NEET UG counselling in...

... • User & Analytics Management: Track total revenue, energy dispensed, active users, and export business reports. Required Technical Stack & Skills: • Mobile: Flutter / React Native (Cross-platform) • Backend: Node.js / Python (Django/FastAPI) / Go • Protocols: Deep knowledge of OCPP 1.6J / 2.0.1 and WebSocket communication is a strict mandatory requirement. • Database: PostgreSQL, MongoDB, or Redis (for real-time tracking). • Cloud Infrastructure: AWS / Google Cloud / Azure with robust security and scalability. What We Are Looking For in a Freelancer: • Prior, proven experience building an EV charging app or working with OCPP protocols. Please attach case studies, Github repos, or screenshots of past EV projects in your proposal. •...

...download and manually edit the PowerPoint files natively. Assessments: Generation of structured question banks (beginner to advanced) exportable to our existing LMS or as JSON/CSV. 5. Asynchronous Processing & Backend Because media generation (video/audio) takes time, the backend must handle asynchronous API calls without timing out. Suggested tools: Node.js or Python (FastAPI/Django), Celery/Redis for task queues, AWS/Cloud infrastructure for hosting. What We Are NOT Looking For We do not need a fully autonomous multi-agent system that runs without human intervention. We do not need complex adaptive machine learning pathways or integrated coding sandboxes at this stage. This is an internal productivity tool for our staff, so the UI needs to be functional and clean, bu...

...custom fields, reviews Single post / blog — clean editorial layout Search results — styled SearchWP output Cart + Checkout — CSS styling only, keep WooCommerce default logic Fixed stack (no substitutions) GeneratePress Premium + GenerateBlocks Pro only (no Elementor, no Divi) FacetWP (licensed) for filters SearchWP Pro (licensed) for search ACF Pro for custom fields Breeze + Varnish + Redis + Cloudflare PHP 8.2, MariaDB, Cloudways hosting Rules No additional plugins without written approval All custom CSS in child theme All custom PHP via WPCode or — never template files Must pass Core Web Vitals (LCP < 2.5s, CLS < 0.1) Mobile-first, GeneratePress native breakpoints No mockups provided — design within supplied tokens Design tokens (pro...

...updates. Right-to-left layout support is built in for languages such as Arabic, Urdu, and Hebrew, ensuring the user experience remains native and culturally appropriate across regions. From a technical perspective, the infrastructure is built using modern scalable technologies including React Native for mobile applications, Node.js and Go for backend services, PostgreSQL for transactional data, Redis for caching and geo-data operations, Kafka or SQS for event streaming, and AWS multi-region cloud infrastructure for global deployment. The system is designed for high availability, auto-scaling, low-latency communication, and operational resilience across Europe, North America, APAC, and the Middle East. Security and compliance are deeply embedded throughout the architecture. Paym...

We are looking for an experienced AWS/WordPress specialist to migrate 2 existing WordPress websites from a shared hosting/cPanel environment to AWS Lightsail. Scope includes: * WordPress migration with m...configuration and HTTPS enforcement * Database and file migration * Basic security hardening * Performance optimization (caching/CDN preferred) * DNS/domain cutover support Requirements: * Strong experience with AWS Lightsail * WordPress migration expertise * Familiarity with Linux, WP-CLI, and database handling * Ability to troubleshoot permissions, redirects, and SSL issues Nice to Have: * Redis/object caching experience * Git/GitHub deployment workflow knowledge * Experience optimizing WordPress on AWS Please briefly explain your migration approach and AWS experience when...

...of these sites will require a GitHub deployment workflow, so familiarity with Git in a WordPress environment is required. The Project: Consolidation: Move 29 low-traffic/static sites onto a shared, cost-optimized Lightsail instance. VIP Setup: Create a standalone, high-performance Lightsail environment for a flagship domain () targeting users in CA and MI. Performance: Implement Redis object caching and Lightsail CDN for the flagship site. Reliability: Set up a Load Balancer and a "Golden Image" workflow for manual horizontal scaling during influencer surges. Management: Install a lightweight control panel (e.g., CloudPanel) for simplified plugin and environment management. Security & Requirements: You must be comfortable working via an IAM User following th...

...Infrastructure Scalable cloud-native backend architecture including: • REST and/or GraphQL APIs • Real-time socket infrastructure • Ride matching engine • Geolocation services • Route optimization • Notification systems • Admin authentication layers • Payment reconciliation systems • Audit logging • Data encryption and GDPR-aligned compliance Preferred stack examples: • Node.js / Go / Python • PostgreSQL + Redis • Kafka/RabbitMQ (optional) • Firebase/AWS/GCP integrations • Kubernetes/containerized deployment ________________________________________ Core Functional Requirements Real-Time Tracking • Continuous live GPS updates • Accuracy target: ±10 meters • Driver/passenger live visi...

...Must Have Skills: - Python (3.9+), Pandas, NumPy, Scikit-learn, SciPy - Strong PySpark & Spark Internals (OOM handling, tuning, optimization) - Databricks (clusters, workflows, Delta Lake) - Causal Inference: A/B Testing, DID, Hypothesis Testing - API Development (FastAPI or similar) - Azure Cloud (Data Lake, ML services) - Docker & Kubernetes - Testing with PyTest --- Good to Have: - Celery / Redis - Polars, PyArrow, SQLAlchemy - Econometrics / experimental design - CI/CD tools (SonarCloud, Snyk, GitHub Actions) ---...

...script breaks silently, what is your first debugging step and how do you prevent it from happening again?" Do not send a generic proposal. If you cannot answer the question above specifically, please do not bid. Required skills : Playwright (Python) Python async / asyncio Celery workers Docker / Docker Compose Session & retry handling iframe-heavy portals Nice to have: FastAPI MongoDB / Redis Celery Beat Linux server ops Do not apply if: Your only automation tool is Selenium or Scrapy You've never worked on a production system Your stack is PHP / Laravel / WordPress ...

We need a full-stack development team to build an AI-powered workflow automation platform for small businesses. The system should allow businesses to automate repetitive tasks such as lead follow-up, invoice reminders, customer support replies, document generation, appointment reminders, CRM updates, and internal task assignment. The platform should include ...Main Features: SaaS multi-tenant architecture Drag-and-drop workflow builder AI assistant for emails, replies, summaries, and task suggestions CRM/contact management Email, SMS, WhatsApp, Slack, Google Calendar integration Stripe subscription billing Admin panel and client dashboard Reports and automation logs Skills Required: Laravel, React/Vue, Node.js, OpenAI API, REST APIs, Stripe, MySQL, Redis, AWS, SaaS development, a...

...Infrastructure and CI/CD planning Security and compliance considerations Marketplace workflow mapping From there, I would look at iteratively developing a shared component architecture across web and mobile, leveraging the following: React for the web platform React Native for iOS and Android apps Node.js (NestJS preferred) or Django for backend services PostgreSQL for transactional consistency Redis for caching, queues, sessions, and realtime synchronization The system I am expecting, to be designed as cloud-native on AWS with: Containerized services Horizontal scalability Secure payment orchestration Event-driven notifications Background job processing Observability and monitoring from day one I would also place a special focus on: Realtime providers availability Booking ...