United Kingdom - Kingston upon Thames, London
As a leader in Lawful and Location Intelligence, SS8 helps make societies safer. Our commitment is to extract, analyze, and visualize the critical intelligence that gives law enforcement, intelligence agencies, and emergency services the real‑time insights that help save lives. Our high performance, flexible, and future‑proof solutions also enable mobile network operators to achieve regulatory compliance with minimum disruption, time, and cost. SS8 is trusted by the largest government agencies, communications providers, and systems integrators globally.
Candidates must have legal work authorization to work in the United Kingdom at the time of application. SS8 is not able to provide visa sponsorship for this role.
About The Role
SS8 is seeking a bright and motivated C++ Software Engineer with 4 years of experience to join our core engineering team. This role is firmly focused on hands‑on C++ development, working on high‑performance, high‑volume data processing systems in telecom and similar environments. You will collaborate with experienced engineers, contribute to real‑world systems, and progressively take on more responsibility across design, implementation, and optimization.
What You'll Work On
* Develop high-performance C++ software for telecom signaling, data processing, and related systems
* Implement efficient decoding/encoding algorithms for large-scale network data
* Build and optimize low‑latency, high‑throughput processing pipelines
* Work within Linux environments (GCC toolchain)
* Perform debugging, profiling, performance tuning, and reliability improvements
* Use AI‑assisted development tools to accelerate coding and automated testing
* Collaborate with senior engineers on architecture, design, and client‑driven requirements
* Participate in continuous integration, code reviews, and quality assurance processes
Key Responsibilities
* Design, implement, and maintain software using modern C++ (C++11 and beyond) and STL
* Optimize applications for performance, scalability, and reliability
* Work with IP networking protocols and communication systems
* Perform multi‑threaded debugging and troubleshooting using GDB or MSVC
* Write Linux scripts and manage OS‑level tasks
* Use Git for version control and collaborate effectively within a team environment
* Leverage AI coding tools to improve productivity and testing coverage
* Contribute to containerised and orchestrated environments (Docker, Kubernetes)
Required Experience & Qualifications
* 4 years of professional C++ development experience
* Strong academic background with a Computer Science (or related) degree (2:1 or higher)
* Strong understanding of performance tuning and efficient code design
* Demonstrated passion for solving complex technical challenges
* Experience using AI-assisted development tools for coding and testing
* Excellent knowledge of:
o Modern C++ (C++11+) and STL
o Linux development (GCC toolchain)
o IP networking protocols
o Decoding/encoding techniques
o High-volume data processing and optimization
o Linux scripting and OS‑level operations
Nice to Have
* Experience with telecom protocols or signaling systems (SS7, RANAP, S1AP, NGAP, etc.)
* Knowledge of cellular network infrastructure and 3GPP RAN/RRC standards (GSM, UMTS, LTE, NR)
* Understanding of RAN‑based location techniques and cell tracing technologies
* Wireshark or other protocol analysis tools
* Jenkins or other CI/CD pipeline experience
* Performance profiling tools
* Functional testing using Python or similar scripting languages
* Experience in high throughput environments such as financial data processing
SS8 does not discriminate on the basis of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation, and provides reasonable adjustments throughout the recruitment process.
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