Intermedia Intelligent Communications
Senior Software Engineer - Real-Time Communications Platform
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Senior Software Engineer - Real-Time Communications Platform
Senior Engineer – Cloud Communications Platform (C++)
Department
Dev & Engineering
Location
Portugal (Primarily remote, with occasional visits to Coimbra and future expansion to Aveiro and Porto)
About Intermedia
Intermedia is a leading provider of cloud communications and collaboration technology that empowers companies to connect better stronger. We’re known for our growth, profitability, and a culture where everyone matters. Our fast-paced environment ensures no day is dull—we’re passionate about building and supporting outstanding cloud tech while fostering long-term careers.
If you’re someone who:
- Wants their voice heard
- Thrives in collaborative, high-energy teams
- Find joy in solving complex problems alongside exceptional people
…then Intermedia could be your home.
Our culture thrives on teamwork, transparency, and mutual support. We hold each other accountable because we all take pride in success together.
Ready to make your impact?
The Role
We’re seeking a Senior Engineer to develop, enhance, and maintain our large-scale real-time communications platform, with a focus on C++ services, networking, and system reliability. Occasional in-office visits (currently Coimbra, with future offices in Aveiro and Porto) are required for collaboration.
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Key Responsibilities
- Design, develop, and maintain C++ (C++17+) services
- Implement and troubleshoot networking and real-time communication flows
- Debug and resolve complex issues (core dumps, concurrency, performance bottlenecks)
- Work within and improve a large, established codebase
- Collaborate with QA and product teams to identify edge cases and behaviour issues
- Participate in code reviews to uphold engineering standards
- Contribute effectively under Agile processes (Scrum/Jira workflows)
Required Qualifications
- Proficient in C++17+ and STL (we’re not settling for lesser)
- Strong grasp of networking fundamentals (TCP/UDP, sockets, protocols)
- Hands-on experience with multithreading/concurrency
- Advanced debugging skills (GDB, core dumps, memory leaks, race conditions)
- Extensive Linux development experience
- Ability to navigate and evolve complex system architectures (legacy or modern)
- Familiarity with Agile methodologies and tools like Jira/Atlassian
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Bonus Skills (but not required)
- VoIP or PBX experience (call routing, hunt groups, IVR, call park/pickup)
- VoIP protocols: SIP, RTP/RTCP, SDP, WebRTC
- boost.Asio proficiency for concise async networking code
- Mastery of GitHub PR workflows and collaborative reviews
- Experience with AI-assisted development (e.g., advanced code analysis/discovery)
- Kubernetes or containerized development workflows
- Work with FreeSWITCH or similar open-source telephony solutions
- Network analysis tools: Wireshark, tcpdump
- Skills in performance profiling & optimisation
Commitment to Diversity & Inclusion
At Intermedia, we ensure your contribution level—not protected characteristics like race, sex, age, disability, or more—dictates your role, growth, and compensation. We actively work to provide reasonable accommodations for dimensions of ability.
We emphasize equal opportunity, inclusivity, and diligence against workplace discrimination. That’s non-negotiable, and we’re proud to be considered a truly diverse, evolving environment*.
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