Senior Developer in Southampton

Senior Developer (Full time) Salary £56,312 – £65,697 (dependent on experience) – Hybrid working A bout Ordnance Survey Ordnance Survey is the national mapping agency for Great Britain, providing world-class geospatial data and services that power innovation, support national infrastructure, and help people make better decisions every day.
We\’re passionate about using cutting-edge technology to solve real-world problems—and we\’re looking for talented people to join our mission.
About the Role As a Senior Developer, you\’ll take a leading role in designing, building and delivering high-quality, AI-driven software solutions.
You\’ll guide technical decision-making and champion best practices across the engineering lifecycle.
This is a chance to work with modern cloud and AI technologies at scale, while influencing how integrated digital services are delivered across Ordnance Survey.
What You Will Be Doing Leading the technical delivery of complex projects, working closely with architects, delivery managers, and stakeholders Coaching, mentoring, and supporting engineers to continually enhance capability across the team Operating and improving production services to ensure robustness, resilience, and reliability Sharing best practices and identifying training opportunities to upskill the wider engineering community Communicating goals, progress, and technical challenges clearly across teams Providing line management support for Engineers and Associate Engineers (as required) What We Are Looking For Proven experience as a senior developer with strong backend engineering expertise Deep knowledge of Python, SQL, and cloud-based AI frameworks (e.g., Databricks, Azure AI Services) Hands-on experience with Azure development—Azure DevOps, Git, CI/CD, Entra ID RBAC, and Azure Services Solid understanding of software architecture, design patterns, and agile delivery practices Experience with geospatial data, REST APIs, JSON, and spatial engines (e.g., Apache Spark) Experience with Generative AI, including LLMs, RAG, and prompt/context engineering A passion for continuous improvement and delivering high-quality solutions The Rewards We want you to love what you do.
That is why our benefits package rewards a job well done.
Check out how we support and invest in our employees by Click here Salary £56,312 – £65,697 (dependent on experience) Performance related bonus up to 10% A competitive pension scheme (OS contributes up to *****%) 28 days annual leave in addition to