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Giovanni E.

4.9

397

8.7

98%

Lima, Peru

$30 USD (1시간 기준)

Bachelor of Software Engineering, Video and Audio Expert, Senior 3D CAD Designer, Advanced Level in English and Native Spanish Speaker, committed to work, responsible and punctual. ✅ +350 projects completed for big enterprises and international clients ✅ Unlimited revisions ✅ Full time freelancer ✅ Excellent Communication ✅ 100% satisfaction I will help you with any project related to: ✅ Software Engineering: Website Development, Mobile Apps, Database Administration, Data Analysis, Automations and more! ✅ Video: Video Editing, 2D & 3D Animation, Whiteboard Videos, Motion Graphics, Promotional Videos, Reels, Visual Effects and more! ✅ Audio: Audio Editing, Voice Over, Audio Production including Mixing and Mastering of Music (I also offer Promotion for Artists), Podcasts and more! ✅ 3D CAD Designer: CAD Modeling, Solidworks, Product Design, 3D Rendering, Architectural Visualization, STL Files for 3D Printing, Technical Drawings, Product Visualization, Interior & Exterior Rendering, SketchUp Modeling, 3D Mockups and more! Click on "Request Quote" and let's start working on your project!

HBase JavaScript Python Visual Basic Website Design

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Amr S.

5.0

185

8.6

99%

The 6th of October, Egypt

$45 USD (1시간 기준)

Microsoft Certified Developer with 24 years of experience. I worked on multiple large scale projects . I have been doing programming and software consulting for over 2 decades on FreeLancer.com . I am certified in SQL Server and C# programming MCP MCSD MCDBA SQL server C# These are some of the technologies I worked with : Server and cloud solutions MS SQL Server 7/2000/2005/2008/2012/2014/2019/2022/2025 Azure SQL Azure Database for MySQL Azure Synapse Analytics Azure Data Lake Analytics Azure Cosmos DB Azure Search Azure Data Factory Azure ML Azure Table Storage Azure Blob Storage Azure Web apps Azure Monitor Azure Devops Azure Active Directory Azure Event Hubs Azure Functions Azure Logic Apps PowerBI SQL Server Integration services (SSIS) SQL Server Analysis Services (SSAS) SQL Server Reporting Services (SSRS) MDX Automate SQL Server with SMO library Service Broker SQL Compact 4.0 Profiling applications, reverse engineering SQL server based applications SQL Server performance tuning Data Transformation Services (DTS) Database replication Replication using IIS Database mirroring Log Shipping Administration Security Data Migration Data Cleansing, Import, Export, Migration, Cleanup, converting between different formats ETL Query optimization, Performance tuning, index optimization Resource Governor Tuning Advisor T-SQL U-SQL CLR Stored procedures, Functions MySQL Server programming and administration ODBC OLEDB Web Programming .NET 8 ASP.NET Core Blazor MAUI Odata ASP.NET WebForms Web controls and custom controls MVC 5.0 - MVC 6.0 WebAPI SignalR Web services ASMX Classic ASP Classic web services & SOAP HTTP handlers, modules HTTP Debugging, Fiddler Client Programming Languages HTML CSS Bootstrap JavaScript Jquery DataTables Desktop and Mobile .NET MAUI Blazor Hybrid WIN UI 3.0 Windows Forms Windows presentation foundation WPF Windows Communication Foundation WCF Windows Workflow Foundation 3.5 WWF Xamarin UWP Visual Studio Extension Development Developing MMC Applications Installation Solutions Install shield MSI Wise Studio General programming TCPIP .NET Remoting Parallel Programming Task Parallel Library TPL Concurrent Collections Multithreading Parallel LINQ Dynamic LINQ Solving Multithreading bugs Emitting Assemblies on the fly Code Generation using code Third Party Solutions Syncfusion Telerik Devexpress Studio Radzen Components Web servers and tools IIS 6, 7.5, 8.0, 10.0 Apache IIS URL Rewrite Ionic URL Rewrite Fiddler HTTP profiler. Postman Web site security OWASP web site Compliance XSS, CSRF, SQL Injection detection and remedy Ecommerce PayPal Integration PayPal Pro Integration ShareIT Integration Stripe.NET Testing MStest Visual Studio Load Testing Visual Studio Online Load Testing Application Protection /Decompiling Xheo licenser Xeno Code Obfuscation Salamander Decompiler Jungle Creatures Decompiler Telerik Decompiler

HBase ASP XML Visual Basic .NET

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Nitesh K.

4.8

118

7.6

91%

VAISHALI, India

$25 USD (1시간 기준)

More than 08 years of experience in Software development, huge experience in building mobile app & web solution. I delivered more than 300 Mobile apps and Web solutions base on Java/J2EE related stacks to various client across the world. I am very strong in developing REST API using Spring Boot, JAX-RS or Jboss REST Easy. I worked as back-end engineer for many web/mobile app project so know well FCM/APNS push notification services, Twilio SMS API and collaborating with Front-end/Mobile app developer. I worked for Android(Java/Kotlin), iOS, Hybrid app (Flutter/React native), PHP(Laravel, Codeigniter) , Java, Java Swing, JavaFX, Spring Boot, REST, C# with APS .NET . Cloud platform like Google, Azure, Digital Ocean, AWS and many local hosting provider. Integrating various hardware devices to Mobile or Desktop app eg. RFID, NFC Reader, Bar code reader, Receipt printer, Bluetooth keyboard . I also work on customising Unicenta POS system. Apart form that I have also strong hands on Android (Java.Kotlin) Based Mobile apps with Hybrid experience Flutter or React Native. These are not limitation I am open for any new project with any tech-stack.

HBase Java Python Mobile App Development J2EE

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Sarath K.

5.0

6.2

100%

KASARAGOD, India

$30 USD (1시간 기준)

👋 Hi, I’m Sarath K 🚀 Senior Linux System Administrator & DevOps Engineer Trusted by startups, SaaS founders, agencies, and enterprises worldwide 🌍 With 10+ years of hands-on experience, I help businesses deploy, fix, migrate, secure, and optimize production servers — fast, clean, and without downtime. 🔥 Clients Hire Me When: 🚨 Their server is down or unstable 📧 Emails are failing or landing in spam ☁️ Cloud setups are misconfigured 🧩 Previous developers couldn’t fix the issue ⚡ They need urgent, expert-level help 👉 And I deliver — often within minutes or hours, not days. 🏆 What I Do Best (Proven by 90+ Reviews) 🐧 Linux & Server Administration - Ubuntu, Debian, CentOS, AlmaLinux, Rocky, RedHat - Performance tuning & optimization - Server hardening & monitoring - Malware removal & server recovery - Zero-downtime migrations ☁️ Cloud & DevOps - AWS, Google Cloud, Azure, DigitalOcean, Linode, Hetzner, OVH - EC2, Lightsail, Load Balancers, Firewalls - Docker & Docker Compose - CI/CD & deployment automation - Production-ready cloud setups - Web & App Hosting - Apache, Nginx, LiteSpeed - PHP, Laravel, CodeIgniter, Node.js, Python - React / Next.js deployments - SSL, HTTPS, Reverse Proxies - WebSockets & real-time apps 🗄️ Databases - MySQL, MariaDB, PostgreSQL - Performance tuning & optimization - Database recovery - Backup & restore strategies 📧 Email & DNS (Specialist Area) - Zoho, Google Workspace, Microsoft 365 - Postfix, Dovecot, Zimbra, iRedMail - SPF, DKIM, DMARC (Deliverability Expert) - Cloudflare DNS & security 🎛️ Control Panels - cPanel / WHM, Plesk, DirectAdmin - ISPConfig, CyberPanel, Virtualmin 🏢 Secure multi-tenant hosting environments - Security & Compliance - Server hardening & best practices - OWASP Top 10 mitigation - Firewalls & intrusion prevention - Malware cleanup & prevention - OpenAI & ChatGPT Integration 💬 Why Clients Love Working With Me ✔ ⚡ Extremely fast response ✔ 🗣️ Clear & honest communication ✔ 🧠 Fixes issues others couldn’t ✔ 💪 Goes beyond scope when needed ✔ 🧘 Calm under pressure (production emergencies) ⭐ “Cloudflare support was useless — Sarath fixed everything in 30 minutes.” ⭐ “Best server guy I’ve ever worked with.” ⭐ “Solved in minutes what others couldn’t in weeks.” 📩 Let’s Get Started If you need a reliable expert who gets things done right the first time, send me a message. 🔥 I’m ready to help you now. — Sarath K Linux • DevOps • Cloud • Servers

HBase PHP Perl JavaScript XML

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Satish K.

5.0

6.5

96%

South Plympton, Australia

$30 USD (1시간 기준)

I am a seasoned IT professional with over 20 years of hands-on experience in the software development industry. My expertise spans a wide range of technologies, and I have demonstrated proficiency in the LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack, alongside a robust understanding of React based stack. Throughout my career, I have been dedicated to delivering high-quality solutions, leveraging my extensive knowledge of backend and frontend technologies. My proficiency in the LAMP stack has allowed me to architect, develop, and maintain scalable web applications with a focus on performance and reliability. In addition to my backend expertise, I have honed my skills in React Native—a framework for building cross-platform mobile applications. My experience in this domain includes developing and optimizing mobile applications for both iOS and Android platforms, ensuring a seamless and responsive user experience. My career journey has equipped me with a deep understanding of the software development lifecycle, from concept to deployment. I am adept at collaborating with cross-functional teams, translating business requirements into technical solutions, and ensuring that projects align with industry best practices. With a passion for staying abreast of emerging technologies and a commitment to continuous learning, I am well-equipped to navigate the ever-evolving landscape of IT. I bring a strategic mindset, problem-solving acumen, and a proven track record of successfully delivering complex projects on time and within budget. As a proactive and adaptable professional, I am eager to contribute my wealth of experience to drive innovation, solve challenges, and deliver exceptional software solutions in both the LAMP stack and React Native environments.

HBase Script Install Data Processing Joomla Android

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Omar Ahmad-Magdy E.

5.0

7.8

100%

Ashmoun, Egypt

$25 USD (1시간 기준)

I am a machine learning engineer with 4+ years of experience in: • Data Assessing and cleaning • Data Visualization • Statistical Analysis • Python Development • Back-end Development. • Data Engineering. . Computer vision . Image processing . Deep learning . NLP . LLMs . GenAi I am currently a Teaching Assistant in the Faculty of Artificial Intelligence, Menoufia University

HBase Python Windows Desktop System Admin Linux

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Ishara Data

4.9

6.7

92%

Nairobi, Kenya

$80 USD (1시간 기준)

We are an IT and Data Science company with a combined expertise of 20+ years experience in the IT field - specifically Linux and Windows systems administration, and 5+ years in the data science field - we have expertise in statistical analysis, predictive analysis, machine learning and big data. We have expertise with all major cloud platforms i.e. Amazon Web Services, Google Cloud Platform and Microsoft Azure. Contact us for: + Descriptive and predictive analysis of data, machine learning, big data + R programming and Shiny interfaces/dashboards + Systems integration, web scraping, API creation + Linux systems administration

HBase Java Python System Admin Linux

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Swagata P.

5.0

5.3

100%

Bongaon, India

$25 USD (1시간 기준)

-> 12+yrs Experience on Joomla & its extension customization, extension development ->8+yrs Experience on VirtueMart & its extension development & customization. -> Work on latest builds of Joomla & Virtuemart. -> Monitor & troubleshoot several online shop running on VM. -> 4+yrs Experience onHadoop Cluster installation/configuration/administration including YARN, HBase, Hive, Spark2 etc from remote/local on Linux using Apache Ambari/Cloudera.

HBase System Admin Linux Web Security Joomla

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Aiman N.

5.0

4.6

100%

Kissimmee, United States

$50 USD (1시간 기준)

I am a U.S.-based consultant specialized in DevOps, Automation and Native Cloud Architecture with about 15 years of DevOps and Software Development experience. During my consulting career, I have worked on projects ranging from leading cloud migrations, to extensive operations transformation and automation, to managing and maintaining Big Data infrastructure. Outside of my independent consulting career, I’ve worked as a full-time employee at Cray, the supercomputer manufacturer - now part of HPE, where I helped with their initiative to bring High-performance computing (HPC) capabilities to the Cloud and later with Couchbase where I worked on their Couchbase Cloud, a Database-as-a-Service platform. Prior to that, I’ve worked with other full-time employers such as Rakuten, Electronic Arts (internship) and NBCUniversal. Some of my most recent consulting work include: - Worked with a successful startup on migrating their infrastructure from ECS to AWS EKS, including development of CI/CD pipelines and Helm charts to support rapid deployment and end-to-end testing on Kubernetes infrastructure. - Contracted by a Orlando-based hospitality firm to develop Chef cookbooks and Ansible playbooks for their large data-center-hosted infrastructure. - Contracted by a Chicago-based Univesity to plan and execute the migration of legacy .NET web services into containerized Java/Spring microservices in the AWS Cloud (ECS). – The project above included getting the university department up to speed with DevOps culture, such as Infrastructure Orchestration practices (used Terraform) and Pipeline as Code (setup Jenkins CI/CD for Docker images build and deploy). – Setup Puppet Open Source infrastructure for Time Warner Cable analytics team - including Hiera and Foreman - and used it to automate the configuration of complex Hortonworks environments. – Designed and built Hortonworks HDP clusters and worked with data scientists to tune Spark and YARN resources parameters for optimal execution of memory-intensive Spark jobs. – Assisted and mentored data scientists and developers in refactoring Spark jobs into testable code by removing environmental dependencies and replacing them with mocks for HDFS and other external dependencies. – Worked closely and provided operational support for engineers using Hadoop clusters, including ensuring accessibility and security, troubleshooting system and applications issues, installing and configuring new services, and other operational support responsibilities. – Setup Jenkins CI/CD pipelines for complex Big Data applications, such as Storm topologies and Spark jobs.

HBase C Programming Java JSP JavaScript

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다른 후보 확인 (분야: HBase Developers)

클라이언트는 HBase Developers를 평가합니다.

5점에서 5

리뷰 1,051 개에서

훌륭한 프리랜서 HBase Developer를 고용하는 방법

An HBase developer is a database engineer who designs, builds, and maintains distributed NoSQL applications on Apache HBase, the column-oriented store that runs on top of the Hadoop Distributed File System. Hiring an HBase developer gives your team specialised expertise in modelling, ingesting, and querying massive volumes of sparse, semi-structured data at low latency. Whether you need real-time analytics on billions of rows, a time-series backbone for IoT telemetry, or a scalable storage layer for a recommendation engine, an HBase expert turns Hadoop infrastructure into a production-grade application platform.

What does an HBase developer do

An HBase developer handles the full lifecycle of a wide-column database project, from schema design to performance tuning. They translate business requirements into row key strategies, column family layouts, and access patterns that scale linearly across a cluster. Beyond writing code, they also coordinate with Hadoop administrators, data engineers, and DevOps teams to keep the cluster healthy.

Typical responsibilities include modelling tables for read-heavy or write-heavy workloads, integrating HBase with ingestion pipelines, and building APIs that expose stored data to downstream services. A senior HBase consultant will also profile region servers, diagnose hotspotting, and tune compactions, block cache, and memstore settings.

Key deliverables from a freelance HBase developer

Schema design documents covering row key composition, column families, versions, and TTL policies

Java, Scala, or Python client applications using the HBase API, Thrift, or REST gateway

Bulk load pipelines using HFile generation, ImportTsv, or Apache Spark on HBase

Real-time ingestion jobs built with Apache Kafka, Apache Flink, or Apache NiFi

Coprocessor implementations for server-side filtering, aggregation, and secondary indexing

Integration with Apache Phoenix to expose SQL access on top of HBase tables

Performance benchmarks, region splitting strategies, and pre-split scripts

Backup, snapshot, and disaster recovery procedures using built-in HBase tooling

Monitoring dashboards via Ambari, Cloudera Manager, Grafana, or Prometheus

Tools and technologies HBase experts work with

Strong HBase developers operate across a wide Hadoop ecosystem. They write client code in Java most often, with Scala and Python common for analytics-heavy projects. They are fluent in HDFS, ZooKeeper, and YARN, since HBase depends on all three for storage, coordination, and resource management.

Expect proficiency with Apache Phoenix for SQL access, Apache Spark for batch processing and ETL, Apache Kafka for streaming ingestion, and Apache Hive for warehouse-style queries against HBase-backed tables. On the deployment side, look for experience with Cloudera CDP, Hortonworks Data Platform, Amazon EMR, Google Cloud Dataproc, or self-managed clusters on Kubernetes. Familiarity with Apache Ranger or Kerberos for security, and tools like JMeter or YCSB for load testing, is a strong signal.

Industries and use cases

HBase is the database of choice when relational systems hit a ceiling on volume or write throughput. Common use cases include:

Financial services storing tick data, transaction histories, and fraud detection features

Telecommunications handling call detail records and network event logs

AdTech and martech storing user profiles, clickstreams, and real-time bidding signals

IoT and industrial monitoring with high-frequency time-series data

Healthcare and life sciences storing genomic data and longitudinal patient records

Social platforms powering messaging inboxes, activity feeds, and graph adjacency lists

Retail and e-commerce running recommendation engines and customer 360 datastores

How to evaluate HBase candidates

The best HBase freelancers combine deep distributed-systems intuition with hands-on operational experience. Look for portfolios that show production deployments, not just tutorials. Strong signals include contributions to Apache projects, blog posts on row key design or compaction tuning, and case studies that name the data volumes and latency targets they hit.

Ask for written explanations of past architectures: how they sized the cluster, why they chose specific column families, how they avoided region hotspots, and how they recovered from failures. Verify their knowledge of related tools, especially HDFS, ZooKeeper, and Apache Phoenix.

Sample interview questions you can use directly:

How would you design a row key for a time-series workload that needs both recent-data scans and per-device queries without creating hotspots?

Walk me through the read path in HBase, from client request to returning a cell value.

When would you use a coprocessor instead of filtering on the client side, and what are the operational risks?

How do major and minor compactions differ, and how would you tune them for a write-heavy workload?

Describe how you would migrate a multi-terabyte table to a new schema with zero downtime.

Why hire HBase developers on Freelancer.com

Freelancer.com gives you access to a global pool of HBase developers, big data engineers, and Hadoop consultants across every time zone. You can compare profiles, portfolios, ratings, and verified reviews before you commit, and you set your own budget while freelancers on Freelancer.com submit competitive bids for your brief. Whether you need a short engagement to tune an existing cluster or a long-term build of a new wide-column platform, Freelancer.com lets you scale your hiring up or down without committing to an agency retainer. Milestone Payments protect your funds until each deliverable is approved, giving you a structured way to manage risk on technical engagements.

Ready to build, scale, or tune your wide-column data platform? Post a project on Freelancer.com today and connect with skilled HBase developers ready to deliver.

What are the steps to hiring a freelance HBase developer?

Hiring an HBase developer is straightforward when your brief reflects the technical depth of the work. The clearer you are about your data model, cluster environment, and performance goals, the better the bids you will receive. Below are three steps that take you from posting a project to awarding the work with confidence.

Step 1: Post your project on Freelancer.com

Your project post is the single biggest determinant of bid quality. A precise brief filters out generalists and attracts HBase specialists who can speak to row key design, region tuning, and ecosystem integration. Head to the post project page , fill in the brief, scope, timeline, and budget, then publish the project for freelancers to bid on.

Describe the workload type: time-series, transactional, profile store, feature store, or analytical

List approximate data volumes, ingestion rates, and required read and write latency targets

Specify your environment: HBase version, distribution (Cloudera, EMR, Dataproc, self-managed), and whether HDFS or S3 is the underlying store

Note adjacent tools in scope, such as Apache Phoenix, Spark, Kafka, NiFi, or Hive

State the deliverables, whether that is schema design, client code, ingestion pipelines, performance tuning, or migration

Share your timeline, milestones, and any compliance or security requirements like Kerberos or Ranger

Step 2: Review bids from freelancers

Bids are short proposals that show how each freelancer interprets your brief. A strong HBase proposal references your specific workload, asks pointed questions about access patterns, and outlines a realistic approach rather than generic promises. Read each bid carefully and shortlist candidates whose technical thinking matches the work.

Check whether the proposal addresses row key design and hotspot avoidance for your workload

Look for clarifying questions about consistency, latency, or cluster topology

Assess timeline realism for tasks like bulk loads, coprocessor development, or migration

Review attached samples: schema documents, benchmark reports, or links to open-source contributions

Confirm proficiency with the specific tools you mentioned, such as Phoenix, Spark on HBase, or Kafka ingestion

Use Freelancer.com chat to ask follow-up questions before shortlisting your finalists

Step 3: Evaluate freelancers and award the project

The final decision combines proposal quality with profile evidence. Look at the depth and consistency of past HBase and big data work, not just one impressive project. Verified reviews, completion rates, and on-time delivery scores tell you how the freelancer performs across many engagements.

Review portfolio depth for HBase, Hadoop, and adjacent NoSQL or streaming projects

Check star ratings and the volume of completed projects on Freelancer.com

Read written client reviews for comments on technical accuracy and communication

Confirm verified payment method, completion rate, and on-time delivery rate

Validate any claimed certifications in Cloudera, Hortonworks, or cloud big data services

Award the project and use Milestone Payments so funds are released only as each deliverable is approved

What is the difference between an HBase developer and a Hadoop developer?

A Hadoop developer is a generalist working across HDFS, MapReduce, Hive, Spark, and the broader ecosystem. An HBase developer specialises in the wide-column NoSQL layer, focusing on schema design, real-time access patterns, region tuning, and integration with tools like Phoenix and Spark. Many candidates will have both skill sets, but for production HBase work you want someone whose primary expertise is the database.

Do I need an HBase developer or a Cassandra developer?

Both are wide-column NoSQL stores, but they have very different architectures. HBase fits well when you already run Hadoop, need strong consistency, and use tools like HDFS and Spark. If you have a specific HBase cluster, an existing HDFS footprint, or workloads built around Phoenix and coprocessors, you need an HBase specialist rather than a Cassandra one.

Can I hire an HBase freelancer for a short, one-off project?

Yes. Common short engagements include schema reviews, performance audits, hotspot diagnosis, version upgrades, and one-time data migrations. Freelancer.com supports both fixed-price projects for clearly scoped work and hourly contracts for ongoing tuning or support.

What information should I share before the project starts?

Share your data volumes, expected read and write throughput, latency targets, current cluster size, and the surrounding ecosystem you use, such as Kafka, Spark, or Phoenix. Sample row layouts and access patterns help even more. The clearer the technical context, the more accurate the bids and proposals you receive.

Do HBase developers also handle DevOps and cluster administration?

Some do, but the roles are distinct. Many freelancers cover both application development and operational tasks like cluster sizing, Kerberos setup, and monitoring. If you need deep administration alongside development, state that in your brief so candidates can confirm their experience with tools such as Ambari or Cloudera Manager.