13 of 13 Contract Senior Developer Jobs in London

Senior Go Developer London, UK 6 Month Contract An incredible opportunity for an experienced Senior Go Developer with strong backend engineering skills to join a prestigious tech client on a contract basis. Known for its high bar for engineering quality, this isn't your typical banking or fintech gig - contractors here are genuinely embedded, involved, and … making meaningful impact from day one. As a Senior Go Developer, you'll play a key role in building mission-critical, data-driven services that power core parts of the platform. You'll take ownership across the full development lifecycle, from system design and implementation to optimisation and release. You'll be working in an open, fast-moving … to shape how things are built and the trust to get on with it - whether that's improving infrastructure, shipping new features, or quietly refactoring something that needs it. Senior Go Developer - Key Requirements: Significant professional experience in software development, with a strong focus on backend systems Proficiency in Go/Golang and proven expertise in AWS, Kubernetes More ❯

Senior GUI Developer - Real-Time Trading Applications Location: London 'Hybrid 2-3 days in office' Job Type: 6 months Contract Industry: Financial Services/Trading Technology Are you a seasoned GUI developer ready to lead high-impact projects in a fast-paced, global trading environment? We're seeking a Senior GUI Developer to spearhead the … design and implementation of a real-time Limit Order Application at the core of a cutting-edge eFX trading platform. This is a critical, senior-level role for someone with deep technical expertise in GUI development, real-time systems, and financial workflows. What You'll Do: Lead the end-to-end design, development, and deployment of a next-generation More ❯

Senior Oracle Developer Oracle to .NET (C#) Migration Project Join a high-impact digital transformation project modernising a long-standing enterprise system. Migrating a complex platform from Oracle and PHP to a .NET (C#) architecture and we're looking for an experienced Oracle Developer to play a key role in this journey. You'll work at the More ❯

Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture More ❯

Senior Application Developer (Oil & Gas) - London/Hybrid - £800 - £875 - Per Day Inside IR35 Eames Consulting is working with an Oil & Gas company to secure the services of a Senior Application Developer on a 6 month contract basis to begin with. Essential Skills & Experience: Supply chain awareness is good however AWS certifications and having demonstrable application … developer skills is key for this customer; Python strength is a must as is java and knowledge of Neptune Python and Java is a must. Ideally can demonstrate building on AWS, so only people that are application developers, have some certifications on AWS. If you are interested in this role, please apply with an up to date version of More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development More ❯

Job Title: Senior Java Developer - Electronic Trading Location: London A leading global financial firm is looking for a skilled Java Developer to join their Electronic Fixed Income team. You'll help build and improve fast, reliable trading systems that connect to global markets. What You'll Do Develop and improve electronic trading systems with a focus on More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency trading platforms More ❯

E-Trading Fixed Income - Senior Java Developer | London (Hybrid) | 6-12 month contract We are partnered with a leading investment bank who is hiring a Java Developer with strong expertise in electronic trading systems to join their e-Fixed Income team in London. You'll play a key role in developing high-performance, low-latency trading platforms More ❯

We are seeking a Senior GUI Developer to hit the ground running who will lead the design and development of a high-performance, real-time Limit Order Application within our global eFX trading platform. This application will serve as a critical interface for traders and risk managers, enabling precise control and monitoring of limit order strategies across global … markets. This is a senior-level role requiring deep technical expertise in GUI development, a strong understanding of trading workflows, and the ability to deliver under pressure in a fast-paced, high-stakes environment.Why This Role Is Important to UsThe Limit Order Application is a key component of our eFX trading infrastructure, enabling efficient and controlled execution of trading More ❯

Senior Business Systems Analyst/Developer (Finance Systems) Remote Initial 3 Month Contract IR35 to be determined £400-£500pd (Depending on experience) Role Description Our client are seeking a Senior Business Systems Analyst/Developer to lead the design, development, and delivery of system solutions for their financial systems. In this role, you will provide expert … You will contribute to the analysis, design, development, implementation, support, maintenance, and continuous improvement of financial software applications. Skills/Experience Proven experience as a Business Systems Analyst or Developer within finance systems, preferably with Unit4 ERP. Strong understanding of financial processes and requirements in an educational institution. Excellent analytical and problem-solving skills with the ability to work More ❯

Description:Skills Required:• Understanding of the key technologies relevant to the ServiceNow integration solutions including: SSO, SAML, SSL, Web Services, LDAP, JDBC, ODBC, REST, SOAP, SCP, FTPS, JSON• ServiceNow Developer certification is a plus• Experience with other ITSM software (BMC Remedy ITSM, HP, Landesk, etc.)• Experience with orchestration tools (ex. HP Operations Orchestrator, BMC Atrium Orchestrator)• Micro-services architecture More ❯

You will be working with a London-based financial services client on a long-term risk-focused project as a senior C++ developer. What you'll need to succeed Extensive C++ development experience within financial services/investment banking - mandatory Good understanding of market or credit risk. Good experience with low-latency application development. Strong understanding of system architecture More ❯