Technical Lead (C++ / Networking / Telephony Systems)

Technical Lead (C++ / Networking / Telephony Systems)

Department: Development & Engineering

Employment Type: Full Time

Location: United Kingdom

Description

This is a hands‑on technical leader responsible for delivery, code quality, and the technical direction of a small team (~5 engineers). It requires strong C++ expertise and the ability to guide engineers working on complex VoIP and PBX systems. While primarily remote, occasional visits to the Bristol office or London are required.

What you will be doing:

• Lead Scrum activities: sprint planning, task breakdown, tracking
• Assign work and provide day‑to‑day technical guidance
• Own and enforce code review standards
• Write and refine user stories; improve the team’s story quality
• Translate product requirements into engineering tasks
• Ensure maintainability and consistency of the codebase
• Act as an escalation point for complex technical issues

What you will bring to the role:

• Strong C++ (C++17 minimum), hands‑on coding
• Strong networking fundamentals (TCP/UDP)
• Experience leading or mentoring engineers
• Experience with multithreaded systems and debugging
• Ability to work effectively in large, complex codebases
• Ability to contribute to solution design and make pragmatic trade‑offs
• Agile/Scrum experience with Jira/Atlassian tools
• Ability to break down ambiguous requirements into deliverable work

Desirable

• Practical experience in VoIP or PBX systems
• VoIP protocols (SIP, RTP, etc.)
• Telephony/PBX systems: call routing, hunt groups, call park/pickup, feature interaction and state handling
• Boost (especially Boost.Asio)
• GitHub (PR workflows, reviews)
• AI‑assisted development tools for coding, investigation, and code review
• Kubernetes / containerized environments
• FreeSWITCH
• Real‑time / low‑latency systems experience
• Performance tuning and system profiling

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 (collectively referred to in our Code of Conduct as "Protected Classes"). 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. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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