Senior Software Developer - 5G Core

Stevenage
3 weeks ago
Create job alert

At Capgemini Engineering​
The world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.​
About the job you’re considering​
Senior Software Developer - 5G Core (Stevenage/HYBRID)
A brilliant opportunity to advance your career while working with cutting-edge technologies in the 5G Core network domain as a Senior Software Developer with expertise in microservices.
Hybrid working: The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of Company offices, client sites, and your home; noting that you will be unable to work at home 100% of the time.​

If you are successfully offered this position, you will go through a series of pre-employment checks, including: ​identity, nationality (single or dual) or immigration status, employment history going back 3 continuous years, and unspent criminal record check (known as Disclosure and Barring Service)​

Your role

  • Design and Implement SBA Services: Develop microservice-based components such as AMF, SMF, PCF, NRF, and others in alignment with 3GPP standards (e.g., TS 23.501, 29.500).
  • RESTful API Development: Build and manage REST APIs for inter-NF (Network Function) communication. Ensure API compliance with OpenAPI specs and 3GPP-defined message flows.
  • Cloud-Native Deployment: Use container technologies like Docker and Kubernetes to deploy services in scalable, resilient environments-whether on public cloud (AWS, Azure) or private 5G telco clouds.
  • Performance and Reliability: Ensure high performance, scalability, and reliability of network services. Optimize services for low latency and high throughput.
  • CI/CD and DevOps: Integrate code into automated pipelines for continuous integration and deployment. Collaborate with DevOps teams to ensure smooth service rollouts and updates.
  • Testing and Debugging: Write unit, integration, and system-level tests. Debug real-time issues in simulated or live test environments.
  • Documentation and Standards Compliance: Keep thorough documentation of designs, APIs, and implementations. Maintain compliance with evolving 3GPP standards.
    You can bring your whole self to work. At Capgemini building an inclusive future is part of everyday life and will be part of your working reality. We have built a representative and welcoming environment, for everyone.​
    Your skills and experience​
    Bachelor's or Master's degree in Computer Science, Telecommunications, or related field.
  • 7+ years of experience in telecom software development, ideally in 4G/5G Core domains.
  • OS Proficiency - Linux (Ubuntu/Debian)
  • Good Understanding of Networking Concepts IP, UDP, TCP, SCTP
  • Hands-on experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM).
  • Strong programming skills in languages such as Go, Java, or C++.
  • Proficient in building microservices and working with REST/gRPC APIs.
  • Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series).
  • Experience with Docker, Kubernetes, Helm, and cloud platforms (AWS, Azure, or OpenShift).
  • Familiarity with network protocols (HTTP/2, SCTP, Diameter, PFCP).
  • CI/CD tools and test automation experience (Jenkins, GitLab, Robot Framework, etc.).
    Don’t meet every single requirements? Studies have shown women and people of colour are less likely to apply to jobs unless they meet every single qualification. We are dedicated to building a diverse, inclusive and authentic workplace so if you’re excited about this role but your past experience doesn’t align perfectly with every requirement in the job description, we encourage you to apply anyway.​
    Your security clearance
    To be successfully appointed to this role you will need to undergo Baseline Personnel Security Standard checks. ​
    There are no nationality or residency restrictions, although if you have resided outside of the UK within the last 3 years, further checks may be required.​
    There are other criteria and checks required for BPSS, and throughout the recruitment process, you will be asked questions about your security clearance eligibility such as, but not limited to, country of residence and nationality.
    What does ‘Get The Future You Want ‘ mean for you?​
    You’d be joining an accredited Great Place to work for Wellbeing in 2024. Employee wellbeing is vitally important to us as an organisation. We see a healthy and happy workforce a critical component for us to achieve our organisational ambitions. ​
    To help support wellbeing we have trained ‘Mental Health Champions’ across each of our business areas, and we have invested in wellbeing apps such as Thrive and Peppy.
    You will be empowered to explore, innovate, and progress. You will benefit from Capgemini’s ‘learning for life’ mindset, meaning you will have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard ManageMentor, Cybersecurity qualifications and much more.
    Why you should consider Capgemini​
    Growing clients’ businesses while building a more sustainable, more inclusive future is a tough ask. When you join Capgemini, you’ll join a thriving company and become part of a collective of free-thinkers, entrepreneurs and industry experts. We find new ways technology can help us reimagine what’s possible. It’s why, together, we seek out opportunities that will transform the world’s leading businesses, and it’s how you’ll gain the experiences and connections you need to shape your future. By learning from each other every day, sharing knowledge, and always pushing yourself to do better, you’ll build the skills you want. You’ll use your skills to help our clients leverage technology to innovate and grow their business. So, it might not always be easy, but making the world a better place rarely is.​

    About Capgemini
    Capgemini is a global business and technology transformation partner, helping organisations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fuelled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2024 global revenues of €22.1 billion

Get the latest insights and jobs direct. Sign up for our newsletter.

By subscribing you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Quantum-Enhanced AI at the Edge: The Future of Decentralised Intelligence

As the modern world pushes towards instant data processing and real-time analytics, edge computing has emerged as a compelling solution. Instead of funnelling every piece of data to centralised data centres or the cloud, edge computing brings computation closer to the data source—reducing latency, lowering bandwidth costs, and enabling on-the-spot decision-making. From IoT sensors in smart cities to autonomous vehicles and remote industrial sites, the edge has quickly become a linchpin of digital transformation. Simultaneously, Artificial Intelligence (AI) has shown explosive growth, driving breakthroughs in natural language processing, computer vision, and advanced analytics. Cloud-based AI solutions have served organisations well, but in scenarios demanding ultra-low latency or local autonomy, the cloud’s round-trip time becomes a bottleneck. Hence, edge AI—embedding AI models at or near the point of data collection—promises a new wave of hyper-responsive applications and decentralised intelligence. Yet, as we continue pushing the boundaries of data volume, complexity, and speed, even advanced edge solutions sometimes struggle with the exponential computational requirements of AI. This is where quantum computing enters the picture, potentially offering new methods to tackle intractable problems in optimisation, high-dimensional data analysis, and machine learning. While quantum hardware remains in its early stages, the prospect of integrating quantum algorithms into AI workflows at the edge is generating significant excitement. In this article, we’ll explore: The current state and challenges of edge computing. A concise overview of quantum computing and why it matters. The concept of quantum-enhanced AI—especially in distributed or decentralised environments. Potential real-world applications at the intersection of quantum, AI, and edge computing. Key job roles and skill sets emerging in this new frontier. Considerations around security, ethics, and hardware constraints as we move towards quantum solutions at the edge. If you’re a professional in edge computing, an AI enthusiast, or simply curious about what the future of decentralised tech might look like, read on. The fusion of quantum computing and AI at the network edge could redefine how we collect, process, and learn from data in real time.

Edge Computing Jobs at Newly Funded UK Start-ups: Q3 2025 Investment Tracker

Edge computing has emerged as a revolutionary paradigm for processing data closer to where it’s generated—think IoT devices, sensors in remote locations, autonomous vehicles, and more. By reducing latency and bandwidth usage, edge computing enables real-time insights and responsive applications. In the UK, a growing ecosystem of innovators is capitalising on edge technology, buoyed by increased venture capital, academic prowess, and government-backed programmes that stimulate tech development. In this Q3 2025 Investment Tracker, we’ll explore newly funded UK start-ups blazing a trail in edge computing. We’ll also highlight the wealth of job opportunities these investments create for software engineers, DevOps specialists, data scientists, and other tech professionals looking to carve out a career at the cutting edge—pun fully intended.

Portfolio Projects That Get You Hired for Edge Computing Jobs (With Real GitHub Examples)

Edge computing is transforming how data is collected, processed, and acted upon—often in real time and close to where data is generated. From Internet of Things (IoT) devices to 5G networks and industrial automation, edge computing unlocks new possibilities for low-latency analytics, intelligent decision-making, and resource optimisation. With the proliferation of edge devices and the need for distributed computing architectures, demand for skilled edge computing professionals continues to rise. If you want to stand out in this exciting field, you need more than a great CV: you need a well-curated portfolio demonstrating your hands-on capabilities. This guide will show you how to build that portfolio, including: Why a dedicated edge computing portfolio is crucial. How to choose projects aligned with your target edge roles. Real GitHub examples that illustrate best practices. Actionable project ideas for edge deployments and data processing. Tips on presenting your portfolio so recruiters and hiring managers see your value instantly. When you’re ready, don’t forget to upload your CV on EdgeComputingJobs.co.uk so potential employers can find your newly polished portfolio. Let’s dive in!