Senior Software Engineer (Real-Time Communications Platform)
wakefield, yorkshire and the humber, United Kingdom
Company: JR UK
Client / Employer: Intermedia Intelligent Communications
Posted: 05.06.2026
About Intermedia: Intermedia has established itself as a leading provider of cloud communications and collaboration technology. We have a strong track record of growth, profitability, and creating an environment where everyone matters.
About the Role: While primarily remote, this role requires occasional visits to the Bristol office or London. We are looking for a Senior Engineer working on a large-scale real-time communications platform. Focus on C++ services, networking, and system reliability. Practical experience in VoIP or PBX systems is desirable.
Responsibilities
- Design, develop, and maintain C++ (C++17+) services
- Implement and troubleshoot networking and real‑time communication flows
- Work within and evolve a large, existing codebase
- Collaborate with QA and product on behaviour and edge cases
- Participate in code reviews and engineering best practices
- Contribute within Agile processes (Scrum, Jira)
Qualifications
- Strong C++ (C++17 minimum), STL
- Solid networking fundamentals (TCP/UDP, sockets)
- Experience with multithreaded/concurrent systems
- Ability to understand and maintain complex, legacy systems
- Experience with Agile and Jira/Atlassian tools
Bonus Skills
- Practical experience in VoIP or PBX systems
- VoIP protocols: SIP, RTP/RTCP, SDP, WebRTC
- Telephony/PBX systems: call routing, hunt groups, call park/pickup, feature interaction and state handling
- Boost (especially Boost.Asio)
- GitHub (PR workflows, code reviews)
- AI‑assisted development tools (coding, debugging, analysis)
- Kubernetes / containerised environments
- FreeSWITCH
- Network analysis tools (Wireshark, tcpdump)
- Performance profiling and optimisation
- Scripting or Python
Diversity, Inclusion, and Equal Opportunity
We hire, promote, and compensate employees based on their ability to perform their job responsibilities, without regard to race, color, creed, religion, sex, gender, marital status, national origin, ancestry, age, citizenship, physical or mental disability, sexual orientation, or any other basis protected by applicable law. We do not tolerate employment discrimination in the workplace, and we are committed to making reasonable accommodations for identified disabilities or other limitations as required by all applicable laws. We are an equal opportunity employer and value diversity at our company.
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