126 to 150 of 333 Senior Developer Jobs in London

Post Office Ltd in London is seeking a Senior Developer to build, maintain and support internal applications within the Digital & Branch Engineering function. You will deliver new applications and services as trading platforms modernisation progresses, while collaborating with stakeholders to promote best practices and drive innovation. You will … work in a hybrid environment, reporting to the Lead Developer, and contribute to design, testing, release and ongoing support processes with a focus on #J-18808-Ljbffr ...

interests of our clients.We thank you for your interest in joining the Barings team, and invite you to explore our current employment opportunities.Job Title: Senior .NET DeveloperBusiness Title: Associate DirectorDepartment: Global Technology Department – Investment & Enterprise TechnologyLocation: London, UKJob SummaryBarings’ Investment & Enterprise Technology team are seeking an experienced Senior .NET Developer with 7+ years of experience to build, enhance, and support enterprise applications. This role requires strong hands-on development in C#, deep SQL expertise focused on troubleshooting and data analysis, and the ability to deliver business-critical insights through Power BI. The developer will also ...

Senior Software Engineer – Ultra Low Latency Risk Engine Developer Overview Citi Equities Technology | Equities Electronic Execution (Electronic Trading) Citi's Equities Technology organization is seeking a Senior Software Engineer – Ultra Low Latency Risk Engine Lead Developer to join the Equities Electronic Execution (Electronic Trading) technology team. … maintain tooling for trading platform monitoring, real-time risk/position reconciliation, application recovery, and disaster-recovery/failover for the Risk Engine. Provide senior-level production support escalation for latency and risk-control incidents, including root-cause analysis of performance regressions across application, messaging, OS, and hardware layers. ...

looking for a Senior Full-Stack Developer to play a pivotal role in leading the design, development, and deployment of complex software solutions. You will architect and maintain data engineering pipelines, backend services, APIs, demonstrate consideration for design and UI/UX when building user interfaces, delivering reliable ...

Avanti Recruitment is recruiting for a Senior Java Full Stack Developer to join an established, international software company based in Central London. The company develops complex, business-critical enterprise software used by major organisations internationally. Its products support high-volume transactions and essential business operations, giving engineers … software platforms, creating an opportunity to work with modern technologies while improving and extending existing enterprise applications. The position would suit an experienced Java developer who enjoys solving complex technical problems, wants to remain hands-on rather than move into management, and is comfortable working across both backend ...

Senior Dynamics 365 Finance and Operations Developer, United Kingdom London, United Kingdom | Posted on 10/27/2026 Senior Dynamics 365 Finance and Operations Developer, United Kingdom Engagement: Day rate contract. Minimum 5 years. Start: November 2026 Location: Hybrid, London, United Kingdom. Days on site … agreed for each assignment. Day rate: GBP 350 a day. Inside IR35. Language: English. We are seeking a Senior Dynamics 365 F&O Developer to build complex X++ solutions for financial services clients and set the standard for the development team. Key responsibilities Build complex X++ extensions, frameworks ...

Trading Ltd is seeking a Senior .NET Developer to design, build, and maintain multi-asset class applications. The role focuses on Angular front-end (React acceptable) with C# .NET Core backend, Web API, and strong UX considerations. You will collaborate with IT and business teams, contributing to architecture ...

Summary Tribal are looking for an experienced Snr Backend Developer to come and join the team in London. This person will be experienced in Java and will be working on a large well known automotive brand. Key responsibilities Working closely with the Project Management team to create accurate project … ensure we are delivering our solution in the most effective way. Technical skill requirements A candidate for this role will be a Java developer with 9+ year’s commercial development experience. Proven track record of development experience working on complex technical projects in high-performant delivery environments. Ability ...

Senior Dynamics 365 Finance and Operations Developer, Global (UK and Europe) Senior Dynamics 365 Finance and Operations Developer, Global (UK and Europe) Engagement: Day rate contract. Minimum 5 years. Start: November 2026 Location: Hybrid, at client locations in the UK and Europe, agreed for each assignment. … rate: GBP 350 a day. Language: English. We are seeking a Senior Dynamics 365 F&O Developer to build complex X++ solutions for financial services clients and set the standard for the development team. Key responsibilities Build complex X++ extensions, frameworks and batch processing. Build integrations through data ...

Project description We are seeking an experienced Senior KDB+ Developer to design, develop and optimize high performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale and close collaboration with business stakeholder - particularly within Risk functions ...

Overview Mayfair IT is supporting a major UK Government AI and Digital Transformation programme. We are seeking experienced Senior AI Software Engineers, GenAI Engineers and LLM Engineers to build, deploy and support enterprise-scale software and AI-enabled applications across secure public sector environments. This role combines traditional software … knowledge retrieval platforms. Agentic AI applications and multi-agent workflows. AI-powered search and automation platforms. Internal AI Engineering Platforms, reusable templates and developer enablement tooling. Cloud-native applications deployed on Azure and AWS. Examples of You Will Be Building Agentic AI applications that process documents, validate information ...

Senior VxWorks/DO-178C Developer Number of positions: 4 Location: Remote - UK based Contract: Inside IR35 Duration: ASAP - September 2027 Pay rate: £474 per day, inclusive of holiday pay Umbrella equivalent: £550 per day CPL is supporting a client with the appointment of four experienced Senior VxWorks/DO-178C Developers for a long-term embedded software engineering programme. We are looking for senior engineers with strong safety-critical embedded development experience and, critically, proven DO-178C certification experience. Key Responsibilities Design, implement and validate embedded software, including Board Support Packages (BSPs), for custom ...

looking for an experienced Senior Software Developer to join a highly technical engineering team developing systems that directly support trading strategies, automated trading, and quantitative research. This opportunity suits a strong C#/.NET engineer who enjoys complex technical challenges, performance-critical development and influencing how software ...

Project description We are looking for a senior Python developer to join our client's team and lead the build of a new data and application platform. The team focuses on clean code, agile methodologies, and high-quality delivery. The client is from the investment banking industry. Responsibilities ...

supportive, and genuinely collaborative. Because when you’re trying to change an industry, you need people who have each other’s backs. As a Senior Python Developer at Emergn you will take ownership of a business-critical Python platform and help it grow. Join our team ...

this role would require onsite visits to our London office around once or twice per month. About the Role We’re looking for a Senior Fullstack Developer who can take features from concept to production with confidence. You’ll have the real opportunity to own the full development ...

Senior Java Developer | Electronic Trading | VP/Executive Director Location: London Working Pattern: Hybrid, 3 days per week in the office Salary: Up to £200,000 base + exceptional bonus (Total Compensation up to £350,000) Join one of the largest growth programmes in Electronic Trading Technology … trading platforms from the US into Europe. This is an opportunity to join a business that is actively building rather than maintaining, with multiple senior hires planned over the next 12 months. You'll work alongside experienced engineers developing the next generation of low latency electronic trading systems supporting ...

looking for a Senior Full Stack Developer to join a cutting-edge AI programme building next-generation Agentic AI solutions on Microsoft Azure . Location: London (2 days Onsite/week) Hybrid: 2 days per week onsite Duration: Initial 6 months Start: ASAP Essential Skills Strong React ...

Barings LLC in London seeks an experienced Senior .NET Developer to build, enhance and support enterprise applications within the Global Technology team. You will work on C#, ASP.NET Core, SQL, and Power BI to deliver business insights and robust data platforms. The role also involves SaaS application support ...

EPAM Systems, Inc. in London, United Kingdom, is seeking a Senior .NET Developer to join in hybrid mode. You will help build high-quality, scalable software that meets client and regulatory requirements, collaborating with product owners, architects, and teams to ensure timely delivery. You will apply strong C# ...

Fully Remote Senior Full Stack Python Developer (Python, Django, SQL/Postgres, Typescript, ReactJS) - Solo Python Developer Role - Up to £65,000 - Fully Remote (They do have an office based near Gatwick Airport if you want to work from an office) - Open to applicants ...

Workplace: White City, London – 3 days a week in the office The role We are looking for a senior unity developer to join our ranks at Metavision Studios to develop, and maintain live-ops of our legacy projects. In doing so, you’d play a core part … titles. Demonstrated ability to quickly understand, stabilize, and document existing/legacy codebases with limited documentation. Strong interpersonal skills experience, working directly with mid-senior levels in large organisations Proven ability to self-motivate, work independently and work collaboratively C# Language Proficiency Significant Unity Experience Strong Live-Ops Platform ...

experienced Senior Salesforce Developer with a passion for building scalable, high-performing, enterprise-grade solutions? We're looking for a talented developer to join us on a 12-month contract and play a key role in the ongoing development and evolution of our Salesforce platform. Working closely ...

Hunter Bond is seeking a Principal/Senior Java Developer to join a elite FinTech engineering team in London. You will tackle high-scale, business-critical technology at the intersection of financial services and digital assets, working with top engineers and architects in a hybrid setup. You should ...

Description: As a Senior Web Developer at Krucx Technologies LTD, you will play a crucial role in designing, developing, and maintaining our web applications. You will work closely with our product and design teams to deliver high-quality, scalable, and robust web solutions that enhance user experience ...