£1000 - Outside IR35 Contract – Low Latency Java / Core Trading Platform Engineer Location: UK or Europe Contract: Outside IR35 Technology: Java | Low Latency | Distributed Systems | Electronic Trading I'm working with a major European energy trading organisation that is making a significant investment in its electronic and algorithmic trading capabilities. They're building out a new digital trading platform, bringing the engineering principles and technology typically associated with investment banks, hedge funds and high-frequency trading firms into the energy markets. This is a genuinely hands-on engineering opportunity to help design and build the core infrastructure underpinning a modern electronic trading platform. What you'll be working on: Building high-performance, low-latency Java trading infrastructure. Developing Order Management Systems (OMS) and exchange connectivity. Designing high-throughput market data and messaging infrastructure....

Senior Backend Engineer (Contract) | NodeJS / C# / Kotlin / Java / Go | London Hybrid | £550/£600 per day | Contract They're looking for Senior Backend Engineers who can do more than simply pick up tickets. They want people who are technically strong, proactive and comfortable taking ownership of projects, working collaboratively with the wider engineering team and delivering reliable, high-quality systems. This is an opportunity to join a busy engineering environment where you'll be working on meaningful product integrations, solving complex technical challenges and helping deliver some of the business's highest-priority projects. What You'll Be Doing • Building and delivering backend integrations across a range of product initiatives. • Designing and building reliable, scalable backend systems. • Working across authentication and identity-related functionality. • Taking ownership of projects, from understanding requirements through to delivery. •...

Interim SAP S/4HANA Consultant (IFRS) Remote with occasional travel to sites £400 - £500 per day – Outside IR35 3-month FTC We are currently seeking an experienced SAP S/4HANA Consultant (IFRS) for an interim assignment with a leading organisation. The role will focus on reviewing and optimising the existing SAP S/4HANA environment, ensuring it is configured effectively to support IFRS requirements and that the business is maximising the system's automation capabilities. Key Responsibilities: Review the existing SAP S/4HANA configuration and its alignment with IFRS. Ensure the system supports IFRS-compliant accounting and financial reporting. Identify opportunities to improve automation and system functionality. Eliminate unnecessary manual processes and workarounds. Optimise finance modules, workflows and processes. Work closely with Finance and IT teams to implement improvements. Provide guidance and knowledge transfer to internal stakeholders....

Contract Opportunity: Senior Front-End Engineer, Identity Integration 6 months | Outside IR35 | Hybrid, 2–3 days in London | £550–£700 per day (flexible) I’m working with a fast-growing fintech scale-up that has just been acquired by a global leader in financial and accounting software. As part of the acquisition, they’re bringing their platform together with one of the world’s most widely used small business accounting products. They need experienced contractors to help deliver that integration. The work centres on identity: connecting the two platforms so users can sign in and move between them securely and seamlessly. It’s a high-visibility project inside a newly combined business, with real technical ownership of the user-facing experience. What you’ll be doing: Building the user-facing sign-in, sign-up and account-linking journeys between the two platforms Implementing client-side authentication flows, including redirects, session handling and secure token...