Technical Lead (C++ Networking Telephony)

TL;DR

Technical Lead (C++/Networking): Leading a small engineering team to develop and maintain complex VoIP and PBX systems with an accent on code quality, technical direction, and system reliability. Focus on managing Scrum activities, optimizing multithreaded networking systems, and translating product requirements into scalable engineering tasks.

Location: Must be based in Portugal and able to occasionally visit the office in Coimbra

Company

A leading provider of cloud communications and collaboration technology focused on creating an environment where every employee can make a difference.

What you will do

• Lead Scrum activities including sprint planning, task breakdown, and tracking.
• Provide day-to-day technical guidance and assign work to a team of approximately 5 engineers.
• Own and enforce code review standards to ensure maintainability and consistency of the codebase.
• Translate product requirements into detailed engineering tasks and refine user stories.
• Act as the primary escalation point for complex technical issues.

Requirements

• Strong hands-on expertise in C++ (C++17 minimum).
• Deep understanding of networking fundamentals, specifically TCP and UDP.
• Proven experience leading or mentoring other engineers.
• Expertise in multithreaded systems and debugging within large, complex codebases.
• Experience with Agile/Scrum methodologies and Jira/Atlassian tools.
• Must be based in Portugal and available for occasional office visits to Coimbra.

Nice to have

• Practical experience with VoIP/PBX systems and protocols (SIP, RTP).
• Proficiency with Boost (especially Boost.Asio) and GitHub PR workflows.
• Experience with Kubernetes, containerized environments, and FreeSWITCH.
• Knowledge of real-time/low-latency systems and performance tuning.
• Experience using AI-assisted development tools for coding and investigation.

Culture & Benefits

• Team-oriented culture built on transparency and mutual accountability.
• Fast-paced work environment with opportunities to make a tangible impact.
• Hybrid work model providing flexibility with periodic in-person collaboration.
• Strong internal promotion track with a history of long-term employee retention.

Hiring process

• Application review and initial screening.
• Recruiter interview.
• Technical interview.