1 to 25 of 206 Senior Developer Jobs in London

Senior Software Developer £80,000 - £85,000 London Hybrid Are you a Senior Developer with a love for software development as well as project management? Are you proficient in .NET, C# and Azure? If you have a background in programming/development and are looking to take a step back into a more project/program … but still maintain a hands on mindset this could be the role for you! Due to growth, our client a London based brokers and market maker is seeking a Senior Developer to join them on a permanent full time basis. Our client is a London based broker with a global presence in the market, which has been established … for 50 years. Due to expansion plans and growth, they are seeking a Senior Software Engineer to join their growing team. In this role, you will be responsible for all aspects of the project life cycle, from requirements gathering to specification writing and managing change releases. The Technical PM will also be required to devise test plans and work More ❯

Senior iOS Developer - Healthcare scaleup £75-85k DoE + benefits Central London/one day in the office per week Were seeking a Senior iOS Developer with a strong software engineering background, 6+ years of native iOS development experience and an interest in developing skills on Android. The Senior iOS Developer will be … design patterns, including UI architectural patterns particularly regarding native mobile apps Experience of local databases and reactive UI Experience of UI test automation Responsibilities: Working with the Lead Mobile Developer to deliver the iOS app Growing as an Android Developer, to help deliver the Android app. There is strong source code parity between Kotlin/Swift, achieving very … Proactively analysing UX, performance, maintainability, test coverage, documentation - and driving initiatives to improve Working with the Product Owner and QA Engineer to ensure high quality across the mobile apps Senior iOS Developer | Senior Mobile Developer | Senior Mobile Application Developer More ❯

Senior Developer - London - Hybrid - £100,000 About the Role: A leading UK-based corporate finance advisory firm is seeking a Senior Developer to join its growing Technology & Innovation team. This is a fantastic opportunity for a driven developer to lead and execute cutting-edge tech strategies, working with AI tools and modern platforms to deliver More ❯

Senior Developer - London - Hybrid - £100,000 About the Role: A leading UK-based corporate finance advisory firm is seeking a Senior Developer to join its growing Technology & Innovation team. This is a fantastic opportunity for a driven developer to lead and execute cutting-edge tech strategies, working with AI tools and modern platforms to deliver More ❯

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 ❯

Customize Consent Preferences Always Active WE'RE HIRING We're looking for a Senior PHP Developer to join our team. We are looking for a skilled Senior Developer who will be responsible for developing websites and web systems for our company. You will have solid knowledge and experience in programming applications. This is a great role … for someone with 5 years+ of experience who is already in a Senior Developer role or is an experienced Developer, looking to build and manage their own team. Design, build, and maintain efficient, reusable, and reliable Laravel code for our web application. Develop all server-side logic, definition, and maintenance of the central database, ensuring high performance … from conception to deployment. Troubleshoot, test, and maintain the core product software and databases to ensure strong optimisation and functionality. Our ideal candidate will have: Proven experience as a Senior Developer. Extensive experience with Laravel and PHP. Experience with MySQL Experience with object relational mappers (ORMs) Experience with AWS Experience with Git or other version control systems. Experience developing More ❯

Senior JavaScript Developer/Engineer (Web API Vue.js) London to £100k Do you have expertise with JavaScript combined with an engineering, problem-solving mindset? You could be progressing your career in a senior, hands-on Senior JavaScript Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior JavaScript Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof … experience, happy to mentor more junior developers You're likely to be degree educated in Computer Science or similar tech discipline What's in it for you: As a Senior JavaScript Developer you will receive a competitive package: Salary to £100k 25 days holiday (increasing to 30), plus Christmas Eve Vitality healthcare plus a host of wellbeing benefits More ❯

Senior JavaScript Developer/Engineer (Web API Vue.js) London to £100k Do you have expertise with JavaScript combined with an engineering, problem-solving mindset? You could be progressing your career in a senior, hands-on Senior JavaScript Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior JavaScript Developer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof … experience, happy to mentor more junior developers You're likely to be degree educated in Computer Science or similar tech discipline What's in it for you: As a Senior JavaScript Developer you will receive a competitive package: Salary to £100k 25 days holiday (increasing to 30), plus Christmas Eve Vitality healthcare plus a host of wellbeing benefits More ❯

Senior C# Developer/Software Engineer (Windows Desktop Trading Systems) London to £140k Are you a Senior C# Developer with strong Windows desktop development skills combined with banking/financial services experience? You could be progressing your career at a Hedge Fund with over $10 billion under management. As a Senior C# Developer you … desktop applications and design and implementation of scalable, service orientated architectures (SOA) but will also gain exposure to web applications using React and/or Angular. This is a senior, hands-on position, you'll collaborate with colleagues in the US and Canada and be the sole resource on these systems for the UK. Location/WFH: You'll … and cloud computing You have excellent communication and stakeholder management skills You're degree educated in Computer Science or similar discipline What's in it for you: As a Senior C# Developer/Software Engineer you will earn a competitive package: Salary to £140k + bonus Pension and Private Healthcare Hybrid working (x3 days in London office) Impactful More ❯

Senior Developer - Data & AI I'm working with a successful financial advisory firm based in Central London that has recently launched a new Technology & Innovation function as part of a wider digital transformation programme. The business is now looking for a Senior Developer with strong Data Engineering and AI experience to help shape its future direction. More ❯

Senior Developer - Data & AI I'm working with a successful financial advisory firm based in Central London that has recently launched a new Technology & Innovation function as part of a wider digital transformation programme. The business is now looking for a Senior Developer with strong Data Engineering and AI experience to help shape its future direction. More ❯

Senior C++ Developer/Software Engineer (Linux SQL C++17) London/WFH to £110k Global-leading FinTech is seeking a Senior C++ Developer to take ownership of strategic enhancements on their core platform, as well as directly on bespoke client projects. The organisation is a pioneer in the field of cross-asset securities and derivatives post … business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders, and gain/deepen your finance experience. As a Senior C++ Developer, you'll be responsible for designing and building unique technical solutions, meeting user requirements and contributing to the evolution of the cutting-edge platform. Not only … discipline Ideally you will have experience working in a financial services or trading environment although technical skills of far greater importance What's in it for you: As a Senior C++ Developer you will receive a competitive package: Salary to £110k Pension (to 9% contribution) Healthcare Volunteer/charity days Hybrid working Career development and training Apply now More ❯

Microsoft Stack Developer, Senior .NET Developer with Software Security Certification, CISSP, CEH, CSSLP, Central London but Mainly Remote Senior .NET Developer with Software Security, Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote and the expectation is to go … into the office circa twice a week. Please read in full before applying We need someone with a Microsoft tech-stack background who has experience as a .NET Developer with Software Security experience, Azure DevSecOps Consultant or even a good old fashioned Unix/Linux Systems Administratoror someone who has worked as a Senior .NET Developer and More ❯

Senior Pricing and Risk Developer page is loaded Senior Pricing and Risk Developer Apply locations London time type Full time posted on Posted Yesterday job requisition id CMC4717 Join CMC Markets' Pricing and Risk team, where you'll work on our low latency, high-frequency trading platform. You will use cutting-edge Java programming techniques so … experience in this area is essential. As a Senior Developer, you'll not only code but also take on key design responsibilities, shaping impactful projects. You'll mentor junior members of the team, driving innovation in a fast-paced, high-stakes environment. If you're ready to make a real impact on global markets, we'd love to More ❯

Senior Android Developer - Android, Kotlin, MVVM, Java, XML - health care apps Central London circa £80k DoE discretionary annual Bonus Hybrid working - 3-4 days per week in the office A cracking opportunity for a Senior Android Developer to join a small, acclaimed, highly creative app and technology company (circa 20) known for ground-breaking patented technology … field, including several patents in the pipeline. The apps are truly innovative and positively impact people’s lives. We’re looking for a proactive and experienced, technically hands-on Senior Android Developer with a strong track record of delivering high-quality apps and tackling complex engineering challenges. You will be highly respected in your current role for your More ❯

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Join a collaborative, forward-thinking team that values creativity, experimentation, and impact-and help redefine the future of recruitment through intelligent, human-centered technology. We're looking for a talented and experienced Senior Fullstack Developer to play a pivotal role in … abreast of emerging technologies and industry trends to inform strategic decisions. Skills and Experience Minimum 8 years of commercial software development experience, with at least 3 years in a senior or technical lead role. Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI More ❯

Senior Full Stack Developer page is loaded Senior Full Stack Developer Apply locations London, United Kingdom time type Full time posted on Posted 30+ Days Ago job requisition id R-016026 Main Purpose: This is an exciting opportunity for a highly skilled Senior Full Stack Developer to join our Trading IT organisation as part More ❯

Senior Front-End Developer - Equity Derivatives Technology - VP We are seeking a senior developer to join the London based team part of the Equity Derivatives Pre-Trade technology group. This role will position you as a technical and delivery lead to help to design and deliver the build out of a pre-trade request-for-quote … to Policy, applying sound ethical judgment regarding personal behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency. Required Qualifications: Experience as a technical lead senior developer with front-end technology (JS, ideally React). Extensive experience of system analysis and development of production-quality software applications. Consistently clear and concise written and verbal More ❯

Senior Salesforce Consultant/Senior Salesforce Developer/Senior Salesforce Programmer Location: Hybrid (London/UK 23 days onsite) Salary: £75,000 - £90,000 Plus Benefits We are hiring on behalf of our client for a Senior Salesforce Consultant to play a key role in an exciting organisation-wide Salesforce transformation. This role offers the … across Sales, Service, Experience, and Marketing Cloud. Strong skills in Apex, Lightning, APIs, and AMPscript/SSJS. Experience in Marketing Cloud campaign creation and automation. Salesforce certifications (Admin, Consultant, Developer) preferred. Excellent communication skills and the ability to work with both technical and non-technical stakeholders. Comfortable with hybrid working and proactive in delivery. Must have the permanent right More ❯

Senior Backend Developer Capital Pay Software Solutions Ltd Promoting world class payment solution systems to global audiences Capital Pay Software Solutions Ltd is advancing its capabilities by enhancing its Payment Aggregator Platform. This strategic initiative is crucial to our international operations, designed for optimal flexibility and adaptability across diverse markets. We are seeking highly skilled and motivated professionals … developing secure and scalable FinTech solutions, we encourage you to connect with us. Join Capital Pay International in driving innovation in the global payment landscape. We are seeking a Senior Backend Developer with extensive experience in the FinTech industry, specifically in building secure and robust solutions. The ideal candidate will be a technical leader, capable of designing and … refund and chargeback handling, and payment settlement (funds transfer to merchant accounts). Participate in architectural design discussions, code reviews, and technical mentoring. Contribute to the development of a developer-friendly API and comprehensive documentation. Set up and manage cloud infrastructure on AWS, Google Cloud, or Azure. Implement and manage continuous integration and continuous delivery (CI/CD) pipelines More ❯

Senior Backend Developer Capital Pay Software Solutions Ltd Promoting world class payment solution systems to global audiences Capital Pay Software Solutions Ltd is advancing its capabilities by enhancing its Payment Aggregator Platform. This strategic initiative is crucial to our international operations, designed for optimal flexibility and adaptability across diverse markets. We are seeking highly skilled and motivated professionals … developing secure and scalable FinTech solutions, we encourage you to connect with us. Join Capital Pay International in driving innovation in the global payment landscape. We are seeking a Senior Backend Developer with extensive experience in the FinTech industry, specifically in building secure and robust solutions. The ideal candidate will be a technical leader, capable of designing and … refund and chargeback handling, and payment settlement (funds transfer to merchant accounts). Participate in architectural design discussions, code reviews, and technical mentoring. Contribute to the development of a developer-friendly API and comprehensive documentation. Set up and manage cloud infrastructure on AWS, Google Cloud, or Azure. Implement and manage continuous integration and continuous delivery (CI/CD) pipelines More ❯

Mid-level and Senior Developer - GDS - G7 £55,403 - £89,880 location dependant and including additional allowances Published on Full-time (Permanent) £55,403 - £89,880 location dependant and including additional allowances Published on 7 August 2025 Deadline 20 August 2025 Location London, Manchester About the job Job summary The Government Digital Service (GDS) is the digital centre … services, including the GOV.UK website, GOV.UK One Login, and ourdigital service platforms . Reporting to GDS Product Group CTO, the technology programme is boosting efficiency, strengthening security, and improving developer experience by providing infrastructure, tools and standards. Building upon our current initiatives within GDS's AWS cloud environment, we are establishing four new multi-disciplinary teams to broaden our … scope of work: Cloud Platform team - owns and operates a thin central platform for our AWS estate Developer Experience and Finops team - manages core engineering tooling, proactively works to enhance developer practice & experience and ensures value from our SaaS services Engineering Access Operations team - owns and operates identity and access management for our systems and acts as an 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 Full Stack Developer – London Senior Full Stack Developer required for our client, a tech driven, award winning company based in London. Working as part of a wider team including other Back End and Front End engineers, DevOps, Product Managers and UX Designers. We are looking for candidates with strong full stack skills, knowledge of both More ❯

Senior 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 Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing More ❯