Full Stack Engineer

About Prevail Partners Prevail Partners is a leading British intelligence, security and operational support company. We help governments, NGOs and commercial organisations operate safely and effectively in some of the world's most complex environments by combining intelligence, technology and operational expertise. Our teams deliver actionable insight that helps clients manage risk, make informed decisions and achieve meaningful operational impact where it matters most. Our shared mission is to deliver unrelenting excellence in everything we do, underpinned by integrity, curiosity, accountability and care. About the Role We are seeking a Full Stack Engineer to join our Platform & System Operations (PSO) team on a permanent basis. Prevail’s PSO team builds the tools and platforms of our technology landscape, used day to day by the intelligence analysts behind our client investigations. Today these solutions are highly specialised and application-specific, but they share the same backend core: Databricks, AWS and Python, with React on the frontend where needed. We're bringing these tools together into a single, consolidated intelligence platform, and this role will play a part in that evolution. As a Full Stack Engineer, you'll design, build and maintain the applications that power our business – from APIs and services on our Python and AWS backend, through to the user interfaces intelligence analysts use directly, some of which are built in React. Our ambitions go beyond internal tooling: we're building towards a broader platform offering that, over time, we expect to extend to clients as well, and you'll play a part in shaping that as it grows. You'll work closely with the rest of the engineering team to turn requirements into reliable, well-engineered software. This is a mid-level role suited to someone with solid full stack experience who is comfortable owning features end to end, wants to help shape a growing platform, and is motivated by building tools that have a genuine, tangible impact on real investigations. We’re looking for someone who can find the balance between pragmatism and craftsmanship, knowing when to move fast and when to invest in the right foundations. Key Responsibilities: Design, build and maintain full stack features across our Databricks, Python and AWS backend and the frontend of our internal tools, several of which are built in React. Work with Solution Engineers and analysts to understand requirements and translate them into well-architected, maintainable technical solutions. Build and maintain APIs and services on AWS that power our internal tools. Contribute to the ongoing consolidation of our application-specific tools into a single intelligence platform, helping define shared components and patterns. Write clean, tested, well-documented code, and participate in code review to help raise the bar across the team. Take ownership of features from design through deployment, including…