Full Stack Engineer | Cross Asset Trading | React, C#, .NET, SQL Server | London | Hybrid 1-2 days onsite | Up to £550 p/day | Outside IR35 We’re working with a cross-asset trading business that’s firmly tech-first, where engineering sits at the heart of how the firm operates. They’re looking for a Full Stack Developer to join on a contract basis and help build the applications their traders and teams rely on every day. On the technical side, this is a front end-led role, with roughly 60% of your time in React, 30% across .NET, C# and API development, and the remaining 10% in SQL Server. Experience with the modern React ecosystem will set you apart, particularly the TanStack suite, which has become the industry standard for data access and routing. Just as important, you’ll bring a background in regulated environments. Finance can be a tricky space to step into cold, so a solid grasp of the vocabulary and an understanding of models and funds work will help you hit the...

Senior Automation & Integration Engineer 3-Month Contract (Strong chance of lengthy extensions) | Outside IR35 | £500 - £600 P/D (Flex for right candidate) | Hybrid - 1 day per week in Surrey Office We're seeking a Senior Automation & Integration Engineer to help shape and scale enterprise AI and automation capabilities within a growing organisation. You'll combine technical architecture, hands-on delivery, and mentoring to build AI-powered workflows, integrate business systems, and establish best practices for future growth. Key responsibilities: Design and deliver enterprise-grade AI and automation solutions. Build integrations using APIs, webhooks, and modern automation platforms. Define automation architecture, deployment standards, and governance. Work across technologies including Microsoft Power Automate, Copilot, Snowflake, Python, and n8n. Mentor existing automation specialists and raise technical capability across the team. What...

Security Engineer - Microsoft E5 Rate - £475 - £525 Outside IR35 Duration - 6 months initial Location - Milton Keynes (Twice a week on site) The role: Our client is running a major technology transformation alongside a security programme. You'll make sure new cloud, data and SaaS platforms plug into their central Microsoft security stack rather than becoming isolated point solutions. The estate is partly configured, so you'll assess what's there, set secure baselines and connect the pieces end to end. What you'll do: Onboard platforms and tools into Microsoft Sentinel, building custom connectors where native ones don't exist Work with SecOps so the right events are captured and detections work Implement Microsoft Purview: DLP, sensitivity labels and information protection Define and apply secure baselines across AWS and Azure and onboard workloads into Defender and posture management Secure new SaaS and data platforms as they arrive, including SSO...

We're working exclusively with an established investment management business seeking an experienced, hands-on Full Stack .NET Engineer to take a number of internally developed applications and prototypes through to production. The business has been using AI-assisted development tools, including Claude, to rapidly develop working prototypes and now requires an engineer with the technical depth to turn these into secure, scalable and maintainable production applications. This is a backend-leaning full-stack role, with a strong emphasis on C#/.NET, Azure, application architecture and data integration. You'll also need sufficient frontend development experience to deliver complete, functional applications. Working directly with senior business stakeholders in a small technical environment, you'll have considerable autonomy and responsibility for technical delivery. Key responsibilities Take existing applications and prototypes through to production. Design, develop and...