Senior Software Engineer – Real-Time Communications Platform

Intermedia Cloud Communications

Senior Engineer developing a large-scale real-time communications platform for cloud technology. Focusing on C++ services, networking, and system reliability with collaborative team efforts.

Posted 5/28/2026full-timeCoimbra • 🇵🇹 PortugalSeniorWebsite

Tech Stack

Tools & technologies

C++KubernetesLinuxPythonVoIP

About the role

Key responsibilities & impact

Design, develop, and maintain C++ (C++17+) services
Implement and troubleshoot networking and real-time communication flows
Debug complex issues (core dumps, concurrency, performance)
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)

Requirements

What you’ll need

Strong C++ (C++17 minimum), STL
Solid networking fundamentals (TCP/UDP, sockets)
Experience with multithreaded/concurrent systems
Strong debugging skills (gdb, core dumps)
Linux development experience
Ability to understand and maintain complex, legacy systems
Experience with Agile and Jira/Atlassian tools
Practical experience in VoIP or PBX systems (Bonus)
VoIP protocols: SIP, RTP/RTCP, SDP, WebRTC (Bonus)
Telephony/PBX systems: call routing, hunt groups, call park/pickup, feature interaction and state handling (Bonus)
Boost (especially Boost.Asio) (Bonus)
GitHub (PR workflows, code reviews) (Bonus)
AI-assisted development tools (coding, debugging, analysis) (Bonus)
Kubernetes / containerised environments (Bonus)
FreeSWITCH (Bonus)
Network analysis tools (Wireshark, tcpdump) (Bonus)
Performance profiling and optimisation (Bonus)
Scripting or Python (Bonus)

Benefits

Comp & perks

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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Hard Skills & Tools

C++C++17STLnetworking fundamentalsTCPUDPsocketsmultithreaded systemsdebuggingLinux

Soft Skills

collaborationcode reviewsproblem-solvingcommunicationAgile processes