VoIP Developers 채용정보

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  •     Erewin
 님에 대한 채용 진행     Erewin
 님에 대한 채용 진행

    Erewin Erewin

    Russian Federation $30 USD (1시간 기준)
    Voip developer
    Russian Federation
    6.5
    51개 리뷰 51개 리뷰 시간당 $30 USD
    Hello, my friends! There are what i have done in this 2019-2020 year. 2020: ☑ Ready autodialer based on Issabel in 1 hour with forms and reports. ☑ Ansible script for deploy drachtio and simple JS app ☑ Email2Fax gateway ☑ Webrtc client with web frontend based on SIPJS. ☑ Customize Asterisk for License checking....
    Hello, my friends! There are what i have done in this 2019-2020 year. 2020: ☑ Ready autodialer based on Issabel in 1 hour with forms and reports. ☑ Ansible script for deploy drachtio and simple JS app ☑ Email2Fax gateway ☑ Webrtc client with web frontend based on SIPJS. ☑ Customize Asterisk for License checking. Written on C inside source files. 2019: ☑ Webrtc2sip server with Encrypted RTP ☑ Callback + AMD based on FreePBX ☑ click2call php script for Asterisk based PBXs ☑ deploy opensips server (with web panel) with 200cps\6000 concurrent calls ☑ deploy zabbix monitoring system for voip servers ☑ Increase disk space on VM without power off ☑ Moving VMs between ESXI hosts ☑ Colored fax on Hylafax+ ☑ Raspberry Bluetooth Asterisk voip\gsm gateway, ☑ Voip Push Notification iOS, Android ☑ Bluetooth-Asterisk-GSM Gateway, ☑ SIP Load-Balancers Between, ☑ TLS SIP Implementation, ☑ Freepbx Survey module, ☑ Whitelist Kamailio sip server for millions numbers in db, ☑ AGI -> PAMI scripts convert to make server more faster for wholesale, I am voip developer who loves his job. Be free to ask me any question. 덜 보기
  • Erewin 님에 대한 채용 진행
  •     umitron
 님에 대한 채용 진행     umitron
 님에 대한 채용 진행

    umitron umitron

    Turkey $30 USD (1시간 기준)
    Backend, Desktop, Mobile, and Embedded developer
    Turkey
    4.0
    1 리뷰 1 리뷰 시간당 $30 USD
    With more than 15 years in the industry, I have good experience in many kinds of projects including IoT, Communication, Mobile Apps, and many more topics. Passionate about technology and solving problems so it's not important to face with a new programming language or tool. I just try to solve it in a good manner by...
    With more than 15 years in the industry, I have good experience in many kinds of projects including IoT, Communication, Mobile Apps, and many more topics. Passionate about technology and solving problems so it's not important to face with a new programming language or tool. I just try to solve it in a good manner by using the right tool in the right place. These years I'm working more on cloud projects mostly with Amazon AWS services including EC2, Lambda Functions, Cognito and so on Professional Strengths: - Many years of experience as a Backend/PC/Mobile/Embedded software developer - Network Protocols: TCP, UDP, NAT, Broadcast, Multicast, SSL, etc - Many experiences in IoT, VoIP (SIP, RTP), Audio and socket programming - UI design and implementation along with image processing and graphics skills - Experienced in implementing and customizing Embedded Linux for ARM and MIPS architectures (Boot Loader, Kernel and Root File System) - Good skills in designing and implementing various protocols on many interfaces like Ethernet, WiFi, RS232, and RS485 - Excellent knowledge in hardware and control systems using various microcontrollers such as ARM, PIC, AVR, and also peripherals like SPI, I2C, UART, Ethernet, WiFi, etc Technical Proficiencies: - Programming Languages: C, C++, C#, Java, QML(Qt), JavaScript, Python, GoLang - Data Formats: JSON, XML, INI - IDE’s: Visual Studio, VS Code, Qt Creator, Mono, Intellij, Android Studio, XCode, IAR, Arduino, CCS, Codevision - Compilers & Tools: GCC, MinGW, .Net Compiler, Crosstool-NG, Buildroot, MSYS, Git - Operating Systems: Linux, Windows, macOS, Free RTOS, Android, IOS - Technical Software: Docker, Wireshark, Altium Designer, Microtik Winbox - General Software: Gimp, Inkscape, Blender - Databases: MongoDB, PostgreSQL, SQLite, MySQL 덜 보기
  • umitron 님에 대한 채용 진행
  •     lawrence37
 님에 대한 채용 진행     lawrence37
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    lawrence37 lawrence37

    United Kingdom $50 USD (1시간 기준)
    Senior Network / Server Engineer
    United Kingdom
    3.8
    3개 리뷰 3개 리뷰 시간당 $50 USD
    I have over 15 years system administration experience with a number of distributions of linux / unix and windows server, working for a large number of blue chip companies here in the UK. Skill-List (Including but not limited to): Windows 2000-2016 Server Exchange 2003-2016, Office365 Linux / Unix Administration SAN...
    I have over 15 years system administration experience with a number of distributions of linux / unix and windows server, working for a large number of blue chip companies here in the UK. Skill-List (Including but not limited to): Windows 2000-2016 Server Exchange 2003-2016, Office365 Linux / Unix Administration SAN Storage (NetApp, EMC Clariion, HP MSA/EVA/Lefthand) Server Virtualization (Vmware ESX, XenServer, Openstack) Desktop Virtualization (Vmware View, Xen Desktop) Application Virtualization (Thinapp, Xenapp) Networking (Cisco, Juniper, HP, Extreme, Ubiquiti) Firewall / IDS (Cisco, Fortigate, Juniper) Backup (CA Arcserve, HP Data protector, R1Soft, Veeam) Server administration (MsSQL, MySQL, Oracle (inc forms & reports), InnoDB, IIS, Apache, SCCM, WSUS) VoIP Solutions (Nortel, Avaya, Shoretel, Asterisk, FreePBX) Penetration Testing / Server Security/Hardening WHMCS, DirectAdmin, cPanel, Webmin AWS, Azure Config/Management 덜 보기
  • lawrence37 님에 대한 채용 진행
  •     altr
 님에 대한 채용 진행     altr
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    altr altr

    Ukraine $30 USD (1시간 기준)
    System Admin with more than 10 years experience
    Ukraine
    5.4
    33개 리뷰 33개 리뷰 시간당 $30 USD
    - VoIP Expert with more than 10 years experience in FreePBX, Elastix, PBX in a Flash (PIAF), ViciDial and other Asterisk-based systems. - ASTERISK + MICROSOFT TEAMS INTEGRATION - Freeswitch and Sangoma solutions expert - Vicibox and Vicidial! - A2Billing Expert (Installation, Administration, Customization) -...
    - VoIP Expert with more than 10 years experience in FreePBX, Elastix, PBX in a Flash (PIAF), ViciDial and other Asterisk-based systems. - ASTERISK + MICROSOFT TEAMS INTEGRATION - Freeswitch and Sangoma solutions expert - Vicibox and Vicidial! - A2Billing Expert (Installation, Administration, Customization) - Chan_dongle comprehensive solutions (GSM gateways, SIM Card diversion, Calls and SMS forwarding, SMS2EMAIL...) - Administering and configuring of PRI and FXO/FXS cards (Digium, Sangoma...) - Administering and configuring Mitel, Cisco, Linksys, Yealink phones and softphones. Provisioning solutions. - Administering and configuring GSM Gateways: GoIP, Etel, OpenVOX... - ANTIBLOCK IP AND TRAFFIC COMPRESSION solutions for censored countries such as Pakistan, Iran, China... - Unix/Linux/Windows admin and script writer - USB over IP solutions for Windows and Linux - Expert in monitoring solutions (Zabbix, Prometheus, Grafana) - Web Security Expert: security audits, ethical hacking... - Post-project support included as well!!! 덜 보기
  • altr 님에 대한 채용 진행
  •     aleksandart450
 님에 대한 채용 진행     aleksandart450
 님에 대한 채용 진행

    aleksandart450 aleksandart450

    Serbia $30 USD (1시간 기준)
    Web and Mobile Developer
    Serbia
    1.4
    1 리뷰 1 리뷰 시간당 $30 USD
    I am passionate about my work and have over 10 years of experience in mobile and web application development. I am a firm believer in "you get what you pay for", so I like to go above and beyond for the projects and clients I work with. I have built 100+ websites for my clients all over the world. I am proficient in...
    I am passionate about my work and have over 10 years of experience in mobile and web application development. I am a firm believer in "you get what you pay for", so I like to go above and beyond for the projects and clients I work with. I have built 100+ websites for my clients all over the world. I am proficient in iOS and Android development as well as backend websites that provide RESTful/JSON data to the application. Also, As an expert in creating cross-platform iOS/Android and native iOS apps. My strong technologies as: * Voice over IP(VoIP), WebRTC * Android development (Kotlin, Java) * iOS development (Swift, Objective-C) * Hybrid app development (React Native, Flutter/Dart, ionic 3/4) * Web development (PHP, Laravel, CI, React.JS, Node.JS) * Google FireBase, MySQL, SQLite * Design patterns: MVC, Clean Swift, VIPER, MVVM/RxSwift * Third-party SDKs: Facebook, PayPal, Stripe, Google Maps 덜 보기
  • aleksandart450 님에 대한 채용 진행
  •     dailas
 님에 대한 채용 진행     dailas
 님에 대한 채용 진행

    dailas dailas

    Russian Federation $25 USD (1시간 기준)
    System Administrator Asterisk
    Russian Federation
    5.7
    63개 리뷰 63개 리뷰 시간당 $25 USD
    Specialties: IT Management, Network Engineering, MS Windows & Linux administration, Asterisk PBX (dCAA), FreePBX (SCE), user support, computer maintenance and support, Web-services, CCTV More than 5 years of Asterisk PBX (plain, elastix, FreePBX) administration and support. Digium Certified Asterisk...
    Specialties: IT Management, Network Engineering, MS Windows & Linux administration, Asterisk PBX (dCAA), FreePBX (SCE), user support, computer maintenance and support, Web-services, CCTV More than 5 years of Asterisk PBX (plain, elastix, FreePBX) administration and support. Digium Certified Asterisk Administrator FreePBX Sangoma Certified Essential PBXact Sangoma Certified Essential 덜 보기
  • dailas 님에 대한 채용 진행
  •     AamerRasheed
 님에 대한 채용 진행     AamerRasheed
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    AamerRasheed AamerRasheed

    Pakistan $30 USD (1시간 기준)
    Expert Full Stack Web & Mobile Developer.
    Pakistan
    3.1
    1 리뷰 1 리뷰 시간당 $30 USD
    A seasoned professional enjoying 16+ years of work experience in the field of software development, finance and management sector in leading roles. If you are looking professional and trustworthy resource then you have reached the right spot. I represent and lead a team of professional software engineers and my...
    A seasoned professional enjoying 16+ years of work experience in the field of software development, finance and management sector in leading roles. If you are looking professional and trustworthy resource then you have reached the right spot. I represent and lead a team of professional software engineers and my expertise include:- 1. Development of full-stack web and mobile project from scratch to production including business analysis, design/UI-UX development, Coding and deployment. 2. Successfully completed 50+ full-stack web and mobile solutions. 3. The Experience is complemented by academic and professional qualifications. Having a double Master's degree in Software Engineering (MCS) as well as business administration (MBA) really provide me an edge on other developers as I can foresee the business problems with the engineering mindset. Thus, I can provide tailor-made software solutions as per exact business needs which are enjoyed by clients. 4. The prime focus is to provide efficient and cost-effective software solution which could fulfill client's requirement for medium to long term basis thus, providing a great value for money. Professional skills: • Full Stack Web Development mobile development. • Software Analysis/ Design/ consultancy • Node js • React js • React Native • MongoDB • My SQL 8.0 • Agile/ JIRA • Git hub/ Bitbucket 덜 보기
  • AamerRasheed 님에 대한 채용 진행
  •     Jbarberd
 님에 대한 채용 진행     Jbarberd
 님에 대한 채용 진행

    Jbarberd Jbarberd

    Spain $30 USD (1시간 기준)
    Ingeniero Informático / Computer Engineer
    Spain
    3.0
    1 리뷰 1 리뷰 시간당 $30 USD
    Spanish Computer Engineer with more than 20 years of professional experience. Yes! I am one of those geeks who has been in front of a computer for more years than he can remember ... I have worked for more than 20 years for many IT companies, both national and international (you can check my LinkedIn profile). I...
    Spanish Computer Engineer with more than 20 years of professional experience. Yes! I am one of those geeks who has been in front of a computer for more years than he can remember ... I have worked for more than 20 years for many IT companies, both national and international (you can check my LinkedIn profile). I really love what I do and I get along very well with computers and gadgets in general. I put all my passion and knowledge at the service of my clients. I am a very communicative, responsible, honest and efficient person. Also very perfectionist and thoughtful. If I do something, I have an urgent need to do it well. I can tackle any project that has to do with systems administration and programming, web design, e-commerce, security, consulting, integrations, etc... If I fit your needs ... Maybe you can hire me !! [Emoticon from A-Team van] :) --- Ingeniero Informático con más de 20 años de experiencia profesional. Sí! Soy uno de esos frikis apasionados de la tecnología que lleva delante de un ordenador más años de los que puede recordar... He trabajado durante más de 20 años para muchas empresas del sector de las TI, tanto nacionales como internacionales (en mi perfil de LinkedIn está toda la información). Me gusta mucho lo que hago y me llevo muy bien con los ordenadores y los cacharros en general. Pongo toda mi pasión e ingenio al servicio de mis clientes. Soy una persona muy comunicativa, responsable, honesta y eficiente. También muy perfeccionista y detallista. Si hago algo, tengo la imperiosa necesidad de hacerlo bien. Puedo abordar cualquier proyecto que tenga que ver con la administración y programación de sistemas, diseño web, e-commerce, seguridad, asesoría, integraciones, etc... Si encajo en tus necesidades... Quizás puedas contratarme!! [Emoticono de la furgoneta del Equipo A] :) 덜 보기
  • Jbarberd 님에 대한 채용 진행
  •     ninvo
 님에 대한 채용 진행     ninvo
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    ninvo ninvo

    Turkey $20 USD (1시간 기준)
    Digital Architecture
    Turkey
    1.8
    1 리뷰 1 리뷰 시간당 $20 USD
    I'm looking for challenges more than simple projects. I'd like to jump into deeper layers of projects and find a proper solution for each task to make it outstanding . I can develope your PHP , Python, JavaScript applications and do Cyber Security , VOIP , IOT and server management . Just ping me to discuss about...
    I'm looking for challenges more than simple projects. I'd like to jump into deeper layers of projects and find a proper solution for each task to make it outstanding . I can develope your PHP , Python, JavaScript applications and do Cyber Security , VOIP , IOT and server management . Just ping me to discuss about your project . 덜 보기
  • ninvo 님에 대한 채용 진행
  •     helmot
 님에 대한 채용 진행     helmot
 님에 대한 채용 진행

    helmot helmot

    United States $30 USD (1시간 기준)
    Programming | Big Data | Linux/Network
    United States
    3.8
    1 리뷰 1 리뷰 시간당 $30 USD
    I work as a fulltime freelancer and have a masters degree in AI. I'm a fan of Blockchain and dApps and have worked on a lot of projects in AI/ML, Blockchain and fullstack web development for 14+ years. Skills: - Programming(Python/PHP/JavaScipt) - Database(MySQL/PostgresQL/MongoDB/Cassandra/DynamoDB) - Big...
    I work as a fulltime freelancer and have a masters degree in AI. I'm a fan of Blockchain and dApps and have worked on a lot of projects in AI/ML, Blockchain and fullstack web development for 14+ years. Skills: - Programming(Python/PHP/JavaScipt) - Database(MySQL/PostgresQL/MongoDB/Cassandra/DynamoDB) - Big Data(Hadoop/Spark/ElasticSearch) - AI(Tensorflow/Caffe/DeepMind/NLTK) - Web Development(React/Django/Flask/Vue/Nuxt/Next/JQuery/Laravel) - Blockchain(Ethereum/Hyperledger/Binance Chain) Experiments: - Amazon AWS(EC2/Lambda/Serverless apps/S3/...) - Amazon MWS API && Scraping - Social media analysis - PostGIS & PGRouting - OpenStreetMap - Odoo - Twilio & RingCentral - P2P crypto exchange - Web Scraping - Web automation(selenium) 덜 보기
  • helmot 님에 대한 채용 진행

님, 다음 프리랜서는 현재 오프라인 상태에 있습니다.

님, 다음 프리랜서는 현재 오프라인 상태에 있지만, "" 분야와 일치합니다.