VoIP Developer

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

• Proficient experience of minimum 3 years into C++ & experience using MFC library.
• Good experience into C# programming.
• Working experience into COM.
• Good Communication skills.

Greetings from Vimishaitech…! 

Job Title: C++ Developer               

Location: Coimbatore, Tamil Nadu, India        

         Chennai, Tamil nadu, India  

Minimum Experience: 8years Maximum Experience: 10 years 

No of Candidates Required: 5 

Work Mode: WFO 

Skill Sets: 

• C++ 

• VC++ 

• MFC 

• Visual Studio 

JOB DESCRIPTION: 

Leading MNC IT company in Coimbatore is looking for Sr. C++ Developer having 8-10years 

of Experience having experience as below.                                                      

Sr. C++ Developer job profile 

• C++ is one of the general purpose, multi-paradigm programming language. 

• C++ developers generally work on both desktop and mobile applications. In addition, they work with software that interacts with low-level system and hardware resources. 

• In order to attract C++ Developer that best matches your needs, it is very important to write a clear and precise C++ Developer job description.    

C++ Developer job description 

We are looking for enthusiastic and exceptional C++ developer to join our team! As a C++ Developer you will be responsible for creating a beautiful code with the latest technology. You will be using your skills and knowledge to solve and offer solutions to real world problems. 

C++ Developer duties and responsibilities 

• Design, build, and maintain efficient and reliable C++ code 

• Work closely with other engineers to develop new products 

• Work on extensions of existing products 

• Suggest and implement improvements on current products 

• Plan, design, develop, manage, document, test, deploy, and support new and existing modules 

• Hands on of algorithm complexities 

• Development of the next generation software 

• Basic Database systems - indexes, filters 

C++ Developer requirements 

• 8+ years of experience in C++ 

• BS degree in Computer Science or Engineering 

• Experience with algorithms/data structures knowledge 

• Good OOP knowledge 

• Software development lifecycle experience 

• Experience with Android/ OS X/ IOS, Windows and LINUX 

• Goo understanding of TCP/IP protocol 

• Coordination with other developers for cross-functional requirements implementation and tests 

• Resolve issues proactively to deliver high quality products  

Preferred Experience: 

• At least 8+ year working in Agile or Fast Agile methodology 

• Knowledge or experience in test driven development 

Company Description

Vimishaitech, a leading provider of IT solutions, software development, consulting services and Soft skills Training and Development. We have a proven track record of helping businesses find and hire the best talent to meet their specific needs. We understand the challenges businesses face when trying to recruit top talent in today's competitive market. That's why we offer comprehensive recruitment solutions designed to take the hassle out of the process and help you find the perfect employees for your company along with Our service specialises in Soft skills training and development, equipping individuals with essential interpersonal skills like communication, teamwork, and leadership to enhance their professional success.

Thanks and Regards

Responsibilities :

- Develop server side applications in C++

- Contribute in analysis based on requirements. Analysis can be in the form of research and producing Proof of Concepts.

- Produce documents and specifications wherever required.

- Work collaboratively with other developers and QA engineers to deliver the solutions.

Software Developer

Roles and Responsibilities

• Apply knowledge set to fetch data from multiple online sources, cleanse it and build APIs on top of it
• Develop a deep understanding of our vast data sources on the web and know exactly how, when, and which data to scrap, parse and store
• We're looking for people who will naturally take ownership of data products and who can bring a project all the way from a fast prototype to production.

Desired Candidate Profile

• At Least 1-2 years of experience
• Strong coding experience in Python (knowledge of Javascripts is a plus)
• Strong knowledge of scraping frameworks in Python (Request, Beautiful Soup)
• Experience with SQL and NoSQL databases
• Knowledge in Version Control tools like GIT.
• Good understanding and hands-on with scheduling and managing tasks with cron.

Nice to have:

• Experience of having worked with elastic search
• Experience with multi-processing, multi-threading, and AWS/Azure is a plus
• Experience with web crawling is a plus
• Deploy server/related components to staging, live environments.
• Experience with cloud environments like AWS,etc as well as cloud solutions like Docker,Lambda, etc
• Experience in DevOps and related practices to improve development lifecycle, continuous delivery with high quality is an advantage.
• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement