1 to 25 of 63 Permanent Senior Developer Jobs in London

Senior SharePoint Developer Our prestigious US law firm client is seeking a highly skilled Senior SharePoint Developer with extensive experience migrating SharePoint 2016 on-premise solutions to modern SharePoint platforms. This permanent role, based in their stunning City offices, combines hands-on custom development, system maintenance … Hybrid working – 4 days in the office/1 day remote Free lunch every Wednesday £100 monthly employee contribution towards lunch or other expenses Senior SharePoint Developer Key Responsibilities: Design, develop, and support custom solutions across SharePoint Subscription Edition (SE) and SharePoint Online Lead migration of SharePoint ...

Description Senior C++ Developer - London Based in the City of London (2 days in the office)/6 months rolling/£650 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer/Software … analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system. Essential Duties and Responsibilities for the Senior C++ Developer/Software Engineer: Maintains project estimates and project management timelines for multiple major projects. Verifies completeness and accuracy of specifications ...

Description Senior Azure Developer - Active SC, Azure Service Bus, D365 Up to £550 per day (Inside IR35) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Developer with Active Security Clearance (SC), and expertise in Azure Service … Dynamics 365, to join a business-critical programme. Key Requirements: Proven experience working as a Senior Developer within the public sector Active Security Clearance (SC) Hands-on experience with Azure Service Bus and message queue systems. Microsoft Dynamics 365 and Power Automate expertise. Strong understanding of integration patterns ...

Senior Software Developer | C#/.NET | Fully Remote The Role SalamanderSoft builds user identity and account lifecycle management for the education sector. Our software manages 3 million accounts daily across 4,000+ schools, colleges and universities in 34 countries, integrating with Azure, Microsoft 365, Google Workspace and more. … breaks, schools notice. When it works, they don’t, which means reliability, correctness and security aren’t aspirations, they’re requirements.We’re hiring a Senior Developer to take real ownership of parts of this platform: designing solutions, leading delivery, and raising the bar for how the team builds ...

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 the development and growth of a brand-new AI recruitment platform as it prepares to enter the market this summer. This is a rare opportunity to take a product from Beta launch to full market release and beyond, shaping ...

Senior C++ Developer/Backend Software Engineer (C++ Linux SQL) London/WFH to £120k Are you a backend focussed Senior C++ Developer looking for an opportunity to progress your career, working on complex and interesting systems where you can see the impact of your work … Pension (to 9% contribution) Healthcare Volunteer/charity days Hybrid working (x2 days WFH per week) Career development and training Your role: As a Senior C++ Developer you'll design and develop client bespoke technical solutions, meeting user requirements and contributing to the evolution of the cutting edge ...

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 ...

Senior Python 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 ...

Senior Ruby Developer - Leading Health Tech - Hybrid Salary: Paying £75,000 - £100,000 + Equity Industry: Health Tech (Tech for Good) Location: Hybrid, 2 days a week in Central London Office Tech Stack: Ruby on Rails, TypeScript, AWS 👩🏻 💻 The Company 🚀 We're excited to have partnered with … Desired Skills ⚙️ Ruby on Rails TypeScript React or Vue.js AWS They are willing to move quickly with this role, please apply now if interested. Senior Ruby Developer - Leading Health Tech - Hybrid ...

Senior iOS Developer Manchester OR London (Hybrid - 2 days per week in the office) Salary: 65,000 - £85,000 DOE Why Join Us? Become part of an organisation that helps millions save money when it matters most! With a portfolio of renowned consumer platforms and B2B partnerships … deliver world-class experiences A culture where every voice matters and everyone belongs About the Role We're on the lookout for an experienced Senior iOS Developer to join our Mobile Collective! You'll support and grow our suite of high-traffic consumer apps, working in multi-disciplinary ...

Senior Android Developer London (Hybrid - 2 days in office) Salary: £65,000 - £85,000 DOE Are you ready to make a difference? Our client is on a mission to help millions save money when it matters most. With a portfolio of well-known consumer platforms, they reach over … that collaborate to create world-class experiences A culture where every voice matters and everyone belongs About the Role: We're seeking a passionate Senior Android Developer to join the Mobile Collective, enhancing a suite of high-traffic consumer apps. You'll be part of cross-functional squads ...

Senior Java Developer Annual Salary: Competitive with performance-related bonus Location: City of London (Hybrid - 3 days a week onsite) Job Type: Full-Time, Permanent A new exciting opportunity has become available for an experienced Senior Java Developer to join a growing Technology department working specifically … Private healthcare, pension, life assurance, and critical illness insurance. A leadership team that values engineering as a core business differentiator. To apply for this Senior Java Developer position, please submit your CV to be immediately considered. ...

Description Senior Systems Developer Permanent, Full time, Hybrid Working (minimum of 2 days per week in the office) Location: This role can be based in any of our UK offices - Cardiff, Edinburgh, London, Warrington Salary: £45,732 per year for Cardiff, Edinburgh, Warrington. £50,614 per year … time and flexible working. We also offer hybrid working for our office-based colleagues. About the role In this role, you’ll be a senior, hands‐on contributor to the design and delivery of solutions, with a particular focus on our Microsoft Dynamics platform, helping ensure it delivers meaningful ...

SENIOR FRONT END DEVELOPER Salary up to £65-80k Hybrid working - 3 days per week on-site in Bromley Modern front-end stack - Vue.js, JavaScript, HTML, CSS Opportunity to shape user-facing products in a growing tech team ABOUT THE CLIENT We're working with a growing … site) Opportunity to take ownership of front-end architecture Collaborative and forward-thinking engineering environment Ongoing investment in technology and product development THE SENIOR FRONT END DEVELOPER ROLE: This is a hands-on role where you'll take a lead position in developing and enhancing the front ...

This is a newly created position for a Senior .Net Software Developer based in Central London, paying £90,000. PLEASE NOTE – this role is 5 days a week in the Oxford Street area of Central London. To be considered for this position, you will be a highly experienced … Lead C# Software Developer with solid Azure cloud experience. Ideally, you will have a background with B2C website booking platforms/hospitality systems, and customer payment platforms, and be happy to work as a stand-alone .NET developer in a team with a Front End Developer ...

SENIOR SOFTWARE DEVELOPER £85,000 GUILDFORD This is an opportunity to join an innovation-led software consultancy working on complex, real-world engineering problems. The role offers high levels of autonomy, technically challenging work, and exposure to a wide variety of short-to-mid-term projects. THE COMPANY … chance to work on challenging systems rather than repetitive product features. THE ROLE Design and build end-to-end software solutions Work as a senior full-stack engineer (backend-leaning) Own delivery of complex technical problems Build, deploy and support cloud-based systems Collaborate with engineers and data specialists ...

Responsibilities Senior Web Developer Are you looking for a role where you can own architecture and not just tickets? Do you want to build mission-critical modelling software used by leading insurers? This is a hybrid role with the flexibility to work both virtually and from our London ...

Senior Python Developer - Banking London, UK | Hybrid | c.£ depending on experience Permanent Brief We're hiring a Senior Python Developer to join a high-performing engineering team within a banking environment. Key Responsibilities Build and scale Python-based backend systems and APIs Work on high-availability ...

Senior Software Developer, AI Engineering, London, COR7550 Are you a Software Engineer with a passion for AI and building scalable systems from the ground up? This is a rare opportunity to join as an early member, shaping both the technology and the engineering of an ambitious product … Role As a Senior Software Engineer, you’ll play a pivotal role in designing and delivering a modern, AI-driven platform. Your work will span multiple areas, from developing intelligent systems and data pipelines to contributing to scalable SaaS infrastructure. You’ll help define architecture, improve developer workflows ...

Senior C++ Developer (Hybrid, UK-Based) Location: London Salary : £80,000 - £100,000 + EMI Share Options + Private Medical Insurance Vacancy Type: Full-time, Permanent We take care of time, so our customers don’t have to. At Hoptroff, we build nanosecond-accurate, software-driven timing systems … eternity, our software is what’s keeping the world in sync. We’re entering an exciting phase of growth and looking for a Senior C++ Developer to join our small, high-calibre engineering team. You’ll write modern C++ (C++20 or later) at the heart of our Linux ...

Senior Python Quant Developer London (Hybrid) The company A growing fintech business building advanced analytics and execution technology for institutional clients across the derivatives space. Their platform is used by leading hedge funds and asset managers to support relative value, volatility, and macro trading strategies. The environment combines … strong engineering standards with close interaction between trading, research, and technology teams. The role This is a senior engineering technology role focused on the core analytics platform that underpins pricing, screening, and execution workflows. You’ll play a key part in designing and evolving production systems used by traders ...

Senior Salesforce Developer (FSC/Data Cloud/Marketing Cloud) London (Hybrid) Up to £90,000 + Benefits UK Passport Holders/ILR Only. We're hiring a Senior Salesforce Developer to play a key role in a major platform transformation across Financial Services Cloud, Data … Data Cloud concepts (segmentation, identity resolution, data modelling) Experience integrating Salesforce with external systems Familiarity with Agile and CI/CD practices Salesforce Platform Developer I (or working towards) Nice to have: Financial services or regulated industry experience Exposure to Marketing Cloud Next/Advanced Data Cloud or Marketing ...

SENIOR FRONT END DEVELOPER Salary up to £65-80k Hybrid working - 3 days per week on-site in Bromley Modern front-end stack - Vue.js, JavaScript, HTML, CSS Opportunity to shape user-facing products in a growing tech team ABOUT THE CLIENT We're working with a growing ...

Senior Frontend Engineer, London Salary - 80,000 – £100,000 + bonus Location - London | Hybrid (2–3 days in office) A new Senior Frontend (React.js) Engineer is needed to join new team building a brand-new data platform for the Financial Services sector. This is a rare opportunity … sophisticated dashboards, visualisations, and exportable reports Shape key architectural decisions for scalability and performance Collaborate closely with design and backend teams in a small, senior squad Leverage AI-assisted tooling to accelerate development and innovation You Will Need – Strong experience with JavaScript, React and modern frontend architecture Proven track ...

Global brand hiring: Senior AWS/Full Stack Engineer - 12 month contract - Remote/UK based🚀 I’m looking to connect with experienced engineers who thrive in cloud-native environments and enjoy building scalable, data-driven applications. 🔧 What we’re looking for: • 5+ years working with AWS services including ...