251 to 275 of 449 Developer Jobs in London

DESCRIPTION POSITION: Data systems developer ASSIGNMENT NO: 29273 LOCATION: London/Hybrid Our client is seeking a highly skilled IT developer/engineer to work within an Actuarial team to develop high-quality, high-performance solutions to data storage, interrogation and analysis requirements. As a key member of the team ...

Quantitative Developer – C#/Python London | Full-time The mission Join a leading quantitative research and trading firm using heavy compute and modern engineering to tackle some of the hardest problems in systematic finance. You’ll sit close to the money, turning cutting‐edge research into production systems that ...

Lead Software Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Software Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team … Lead Software Developer will design, implement, and maintain publishing software, systems, and customer- facing digital products. They will provide technical supervision and guidance across the team, establishing and maintaining the development processes and working practices. MAIN ACCOUNTABILITIES Lead the development and maintenance of software, in line with organisational objectives ...

Quantitative Developer – Fixed Income (Risk) A leading global quantitative investment firm is seeking a Quantitative Developer to join its Fixed Income Risk function. The team builds the core risk and PnL infrastructure that supports multi-asset systematic and discretionary trading. This role sits at the intersection of engineering, quantitative research ...

Senior Derivatives UI Developer/Lead Banking London This is a new and exclusive opportunity for a Senior Derivatives UI Developer/Lead to join my thriving investment banking client as they are expanding their software development team who lead on derivatives projects Role details Title: Senior Derivatives UI Developer … front office suite of application supporting trading, marketing, trade analysis and research. You will be joining as the hands-on Senior UI Developer/Lead using React as front end and Java 21 as the primary language for back end You will be working with other teams including Front office ...

Full Stack Developer, Hybrid London, Permanent £60K, DoE Full Stack Developer Brighton, Hybrid (4 days in office, 1 Remote) To £60k, DoE Join one of the Southeast's fastest-growing tech firms, which is renowned for its creative and vibrant culture. Our client specialises in offering state … aviation industries. This is a fantastic chance to collaborate with a dynamic and growing team. Our client is looking for an experienced C# Developer to join their expanding Development team. They are looking for someone who is a Team Player; someone who is passionate about collaborating with others and achieving ...

Java Developer Hybrid - 2 Days/Week in London (Victoria) | £50,000-£65,000 + Benefits | Permanent We're seeking a talented Java Developer with strong Spring Framework experience to join a high-performing team delivering large-scale, enterprise-grade applications. Key Focus Areas: Design, develop, and maintain Java-based … with cross-functional teams to deliver high-quality software Contribute to solution design, performance tuning, and code reviews Requirements: Proven experience as a Java Developer (Spring Boot/Spring Framework) Degree in IT or a business-related discipline (essential) Experience within financial services or public sector environments (beneficial) Details: Hybrid ...

Senior Python Developer looking to help shape the future of how schools use technology to empower learners across the UK? We are searching for a Senior Python Developer/Lead Python Developer who can guide a talented engineering team and push the boundaries of what cloud-native EdTech can be. ...

Power Platform Developer (Ref: YC47002) An IT company is currently recruiting a Power Platform Developer to join their London office. In this role, you will be responsible for designing, developing, and operating business applications using Microsoft Power Platform. The ideal candidate should have experience in Power Platform and Power Apps … from Monday to Friday SALARY: £50k–£60k, depending on experience, negotiable START: Jan 2026 or Feb 2026 LOCATION: London Power Platform Developer Main Responsibilities: Design and implement business applications using Power Apps Design and implement business flow automation using Power Automate Cooperation design and implementation with databases such as Dataverse ...

Senior Software Developer – Node.js/AWS/React – London (Hybrid, 3 days onsite) Are you the kind of engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance to join a small, but ambitious tech-for-good/ ...

Senior Backend Developer Salary: Up to £90,000 per annum Client: Leading Data Centre Provider We're working with a well-established Data Centre Provider to recruit a highly experienced Senior Backend Developer. This is a remote role open to UK-based candidates, offering the chance to work on large ...

Senior Backend Developer Salary: Up to £90,000 per annum Client: Leading Data Centre Provider We're working with a well-established Data Centre Provider to recruit a highly experienced Senior Backend Developer. This is a remote role open to UK-based candidates, offering the chance to work on large ...

Senior Python Developer – Multi-Billion Dollar Hedge Fund - Mortgage Technology - London - Hybrid – Up to £300k TC My client, a leading UK hedge fund with $70 billion in AUM, is seeking to appoint a Senior Python Developer within its technology organisation. Our client is undertaking one of the largest infrastructure modernisation … pivotal role as the firm continues its migration away from legacy systems and enhances its bespoke internal platforms. The Role As a Business Engineering Developer, you will: Build, enhance, and maintain applications supporting mortgage origination, valuation, analytics, and reporting. Develop production-ready Python code to automate manual processes and streamline ...

Full Stack Post Trade Developer – Elite Systematic Hedge Fund – C#, Angular/React, SQL – London – Multiple Headcount – Market Leading Compensation One of the world’s most forward-thinking systematic hedge funds is expanding its Post-Trade Technology group and is hiring a Post-Trade Developer to build the external-facing … engineering, and building polished user-facing tools for a highly sophisticated financial environment, this is a standout opportunity. The Role As a Client Solutions Developer, you will help build and maintain: Investor portals and external reporting platforms (think winton.com-style portals) Client-facing dashboards, visualisations, and bespoke reporting tools High ...

currently working with a London-based investment bank who are actively seeking a Senior .Net Developer with strong investment banking experience to work on the development and maintenance of a business-critical platform in the Treasury Pricing space. What you'll need to succeed: Extensive .Net/C# development experience ...

Dynamics 365 CE DeveloperLondon - Hybrid (2 days a week) Job DescriptionOur client is seeking an experience Dynamics 365 CE Developer to join their forward-thinking in-house technology team to provide technical expertise covering Dynamics 365 CE, Power Platform and Azure on a range of enterprise level projects. Responsibilities Engage ...

currently working with a London-based investment bank who are actively seeking a Senior .Net Developer with strong investment banking experience to work on the development and maintenance of a business-critical platform in the Treasury Pricing space. What you'll need to succeed: Extensive .Net/C# development experience ...

Senior Frontend Developer Up to £90,000 Central London - Flexible Hybrid Options Health-Tech A start-up within the health space are seeking a Senior Frontend Developer to lead a high performing squad of engineers building a unique SAAS platform which is radically streamlining an existing complex process. … join as a Senior Frontend Developer and make a real impact on user facing features from the off while enhancing frontend architecture in order to accelerate the products ground-breaking advancements. As a Senior Frontend Developer, you will have the following: Strong expertise in React & Typescript - ideally also with Next.js ...

latest tools and frameworks to deliver solutions that truly make a difference. The Role We're looking for a highly competent Ruby on Rails Developer to join our growing team. You'll work on cutting-edge projects, collaborating with engineers and product teams to design and deliver scalable, secure ...

partnered with a leading fixed income hedge fund in London seeking a talented C# Developer to join their front-office technology team. The fund has a strong and consistent performance track record and has invested heavily in its quant and tech capabilities as part of a wider growth plan. ...

software solutions for our clients—ranging from high-performance mobile data collection tools to complex cloud-native backends. We are looking for an ambitious developer ready to step into a leadership and architectural role. The Role & Culture We operate on a High-Trust, Results-Driven basis. We don't care ...

create a new global standard for sound in social spaces. About the Role We are seeking a technically skilled and pragmatic Full Stack Developer to architect and implement the next major phase of our internal operations system. This Back Office platform is critical to the rollout of our audio inclusivity ...

Quant Developer - Equities Location: London or Dubai Permanent Our client are a market leading hedge fund, with a global reach in relation to their clients and offices. They are on the lookout for a talented Quant Developer with exceptional skills in python programming, and solid experience on equities focused projects ...

Salesforce Developer (SC Cleared) Salesforce Developer - Public Sector (Inside IR35, SC Cleared) Day Rate: £620-£665 (Inside IR35, via umbrella) Contract Length: 6 months Location: Mainly remote, with occasional (ad hoc) travel to London Clearance: Active SC Clearance required (cannot start until transfer confirmed) The Opportunity We are seeking … experienced Salesforce Developer to join a major public sector digital transformation programme. You will work within a secure government environment, delivering and enhancing solutions on the Salesforce platform. This role offers the chance to work with cutting-edge Salesforce Industry Cloud technologies while contributing to a high-impact national project. ...

Senior Front-end Developer - Active SC, React, Next.js Up to £550 per day (Inside IR35 ) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Front-end Developer with Active SC, to join a business-critical programme. Key Requirements: Proven experience working … Front-end Developer within the public sector Active Security Clearance (SC) Solid experience with React and Next.js for Frontend development Hands-on experience working with Cloud environments (AWS) Working knowledge of Java and Spring Boot. Strong technical and leadership capabilities Nice to have: Immediate availability Familiarity with greenfield development ...