51 to 75 of 87 Senior Developer Jobs in London

development to act as the SME in working domain, mentor junior developers on a day-to-day basis. L3 Production Support: As a developer, you will be responsible for delivering Level 3 production support by efficiently diagnosing and resolving issues to minimize disruption to business operations. This includes analysing ...

This is an exciting opportunity for a Senior UI React/Java Developer to contribute to innovative projects in the Financial Services industry. The role is based in London and focuses on delivering high-quality solutions within a collaborative technology department. Client Details The client is a leading … front-office technology landscape and their commitment to building high-performance trading platforms that support complex, fast-moving Fixed Income markets. Description As the Senior UI React/Java Developer, you will: Lead front-end development for a new trading system within the credit space Build advanced, high ...

Excellent opportunity for a Senior Software Developer to play a key role in architecting, developing, and enhancing our clients in-house trading and research systems. This is an opportunity to work on greenfield projects, influence architectural decisions, and directly impact systems that support real-world trading strategies click ...

currently working with a London-based Financial Services client who are actively seeking a Senior Java Developer to work on the development of a business-critical application with a range of cutting-edge technologies. What you'll need to succeed : 10+ years' Java Development experience in an enterprise ...

Location: London Contract Type: Inside IR35 Day Rate: Competitive (via umbrella) Contract Length: Initial 6 months (extension likely) Working Model: Hybrid Level: Senior/VP-equivalent individual contributor Overview A leading global financial services organisation is seeking a Senior Java Developer (Contract) to join its Electronic Fixed ...

hiring a Senior Unity Developer Join Offroad Games, a fresh, London-based game studio founded by ex-Space Apes in 2025. We’re running two live games, Chrome Valley Customs and Fastlane and tackle exciting technical challenges with a ship fast, improve constantly mindset. You’ll work closely … with the team, contributing directly to features and systems that players experience every day. This is a hands-on senior role with real ownership, working alongside our experienced team on live features, gameplay systems, and technical improvements that directly impact players. We value collaboration, clear thinking, and developers ...

Contract Lead Ruby Developer- (UK Remote) 100% Remote (EU-Based Candidates Only) 12-Month Contract We are supporting a leading organisation in the insurance sector as they scale and modernise their cloud based core platform . They are looking for an experienced Senior Ruby Engineer to join … month contract , working fully remotely from anywhere within the UK. Role Overview You'll be a senior member of an engineering squad building, enhancing, and optimising a modern cloud-native system used across a major insurance operation. This is a hands on development role where you'll contribute ...

looking for a Senior Ruby Developer for one of our public sector clients. Rate: up to £625 per day (Inside IR35) Duration: 10 months (extensions likely) Location: UK Based, Remote Start Date: ASAP Requirements Public sector experience is highly desirable For full details regarding this Ruby Developer ...

Your new company A leading consultancy sitting within their market-leading tax practice is renowned for delivering sustainable growth and empowering people to shape their careers. They are responsible for the innovation and development of ...

Senior Back-End Java Developer (IDAM) – Contract (Inside IR35) - SC Cleared Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below. We're looking for a Senior Back-End Java Developer with strong ...

between traditional broadcasting and digital innovation, helping the radio industry thrive in a connected world. About a role We are looking for a Senior Full Stack Developer with solid experience in Node.js and serverless technologies on AWS. The ideal candidate is capable of designing and developing scalable APIs ...

goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role ...

Salesforce Lead Developer Contract East London (Hybrid) Rate: Negotiable DOE We are seeking a hands-on Salesforce Technical Lead/Lead Developer to provide day-to-day technical leadership within a scrum team delivering enhancements to a Salesforce platform used by both internal and external users. This role … combines senior-level development capability with technical governance, code quality ownership, and delivery leadership. The successful candidate will lead by example, actively designing, building, reviewing, and deploying Salesforce solutions while ensuring alignment with development standards and best practices. Key Responsibilities Technical Leadership & Delivery Act as the technical lead within ...

About The Role FDM is a global business and technology consultancy seeking a senior EFX java developer to work for our client within the Financial Services sector. This is initially a 12 month contract with the potential to extend and will be a hybrid role that will ...

Description Senior Back-End Java Developer (IDAM) – Contract (Inside IR35) - SC Cleared Skills, Experience, Qualifications, If you have the right match for this opportunity, then make sure to apply today. We're looking for a Senior Back-End Java Developer with strong Identity & Access Management (IDAM ...

client, a leading global bank, is seeking an experienced Senior Software Engineer to join their Risk Technology & Market Data team within Corporate IT. This is an excellent opportunity to play a key role in developing and delivering enterprise-grade Risk IT solutions that support risk functions within a world ...

Senior Python Quantitative Developer sought by a specialist and multi-award-winning Systematic Hedge Fund in a brand-new Core team designing and implementing a greenfield centralised Python/SQL/Linux/Docker platform for Backtesting, Pricing, Risk and Performance to be used across all Funds … tenure. The firm totals around 150 staff, all of whom are office-based three or more days per week. This is a more technical Senior QD role which will involve collaborating with Quantitative Researchers and Portfolio Managers to architect, design and implement scalable solutions, addressing complex business needs. Primarily ...

education – making high-quality, personalised learning accessible to everyone. What was once technologically impossible is now within our grasp. We’re looking for a Senior Full Stack Developer to join our growing development team. What you will do 🚀 Design and implement a new high-scale system for millions ...

Principal responsibilities Develop key parts of the Global FX MI and Analytics platform Work closely with quants and electronic tech team in implementing fit-for-purpose solutions Contribute to designing and architecting tick, data access ...

Front-End React Developer (Trading UI) | Up to £150k base | London Location: London - 5 days in office Industry: Trading Job Type: Permanent Our client is a world-leading liquidity provider in global energy derivatives markets. They leverage their market position and deep industry expertise to provide market access … core of high-performance trading, real-time data visualisation, and advanced execution tools. The Role Our client is seeking a Front-End React Developer with strong UI engineering experience to join their trading technology team. This role is focused on building high-performance, real-time trading interfaces used ...

Senior Oracle Fusion Developer (SC Cleared) Remote | £650–£700 per day (Umbrella) | 12-month contract We are supporting a major UK public sector digital transformation programme seeking two Senior Oracle Fusion Developers to join an established Oracle Fusion Cloud environment. This role will suit an experienced Oracle ...

some of the world's most loved drinks. We are a global business and one of the leading consumer goods companies in the world. Senior Treasury Analyst, Systems & Developer We're looking for a Senior Treasury Analyst, Systems & Developer to join our Group Treasury team ...

Hedge Fund - Senior C++ Quant Developer - Equities - Linux - Python - Data/Algos/Low latency Hedge Fund background essential C++ (Version 11 upwards), Linux, Python (nice to have). Trading systems experience - ideally experience working in the equities space. Ideally the technical has experience with algo implementation. Quantitative … Developer - Equities Technology We are in search of a Quantitative Developer to join our team who is passionate about designing, architecting, and implementing low latency C++ systems that are not only robust, resilient, and accurate, but also exceptionally fast. Our team works directly with the firm's central ...

Senior Software Developer (Contract) Rate: Up to £500 per day (Inside IR35) Duration: Initial 3-month contract (starting ASAP) Location: Remote (UK-based) A client of ours is seeking experienced Senior Software Developers to join their team on an initial 3-month contract. Key Responsibilities Design, develop ...

Role: Java Developer (Mid-Senior Level) - Up to £120k + Bonus Salary: Up to £120k base salary + Bonus + Package Location: London (Hybrid) This firm is an elite tech driven investment institution that uphold extremely high tech standards. They are made up of some exceptionally talented individuals ...