126 to 150 of 284 Senior Developer Jobs in the UK

Senior Microsoft 365 Developer is required by fast growing and highly successful global organisation. This is a new opportunity within their experienced, dynamic IT team. Purpose : The Senior Microsoft 365 Developer will lead and innovate in the creation, customisation, and optimisation of Microsoft 365 and SharePoint ...

Senior Power Platform Developer - Pro-Code (C#, Javascript) Dynamics 365 CRM & Model-Driven Apps Remote - must be UK based **No sponsorship can be offered** Type: Permanent - Fulltime We’re partnering with a product-led software company at the forefront of AI and low-code innovation . With strong … they’re building the next generation of productivity and workflow tools – with applications across legal, compliance, and other professional services industries . As a Senior Power Platform Developer , you’ll play a pivotal role in architecting and delivering solutions on Dynamics 365 CRM and the Microsoft Power Platform ...

Title: Senior KDB+ Developer Location: London, UK (Hybrid) Job Type: Contract - Inside IR35 Role Overview 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 ...

Senior Oracle PL/SQL Developer, OLTP, Technically challenging hands-on coding role in a large and complex environment. Slough, Berkshire (office based in Slough during probation then 3 days in the office and 2 days working from home). Salary most likely to be in the range … commute out of London on the Elizabeth Line - 35 minutes from Bond Street. Successful software technology company based in Slough are looking for a Senior Oracle developer to join their team. To be considered you will have excellent PL/SQL development skills with strong knowledge of OLTP ...

Senior Front-End Developer Midlands – Flexible Hybrid WorkingUp to £60,000 + benefits12-month FTC We’re currently supporting a business in hiring a Senior Front-End Developer to join their Innovation & Development team. You’ll be working across a range of modern digital products, including … feature development across web and mobile platforms• Support testing, code quality, and front-end best practices• Mentor and support a junior Front End Developer Key Skills Required:• React + TypeScript• Redux• JavaScript• HTML & CSS• Component-based development Desirable:• Jest or automated front-end testing experience• Azure DevOps exposure• React ...

Senior Java Developer (AWS, Java, API) - Sussex - Hybrid Daily rate: £500 - £700 (inside IR35) Duration: 6 months Hybrid: 2 days a week on site (tues, weds) Start: ASAP My client is looking for a Senior Software Developer (AWS/Java) to join the Digital Development & Delivery ...

Description Senior C++ Software Developer Location: Wellington, Somerset; Cribbs Causeway, Bristol; or Milton Keynes Job Type: Full-time, Hybrid A new exciting permanent Senior C++ Software Developer to join an innovative Research and Development team. This role offers the opportunity to work on core customer-facing … internal applications, contributing significantly to our modernisation strategy. If you are a self-motivated and innovative software developer looking to make a real impact, this position is for you! Day-to-day of the role: Refine new feature requests with stakeholders to make them development ready. Collaborate on system ...

Description Senior Software Developer (Contract) Location: Warton - Hybrid (3 days per week on site)Rate: £46.80 per hour (Umbrella)Contract Length: 12 monthsIR35: Inside IR35 Overview A leading UK defence company is seeking an experienced Senior Software Developer to join a highly skilled engineering team working ...

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 Python Developer/Engineer Cirencester to £85k Opportunity to work on complex and interesting systems related to Artic Exploration in a beautiful Cotswolds based office, as part of a small team at a tech start-up, where you can make an impact and progress your career. … Senior Python Developer you will design and develop Greenfield, data centric applications that monitor artic ice flows a... LFWQ1_UKTJ ...

Senior Software Engineer (Contract) 3-Month Engagement | Outside IR35 | Up to £475 per day | Hybrid (London/Ipswich) A rapidly expanding SaaS company is seeking an experienced Senior Software Engineer to support their agile delivery team on an initial 3-month contract. This position offers a strong ...

Senior Guidewire Developer. Full time, Mon - Fri 37.5 hours per week. Flexibility, bonus scheme and many more fantastic benefits! Join the Applications team driving the Guidewire Cloud rollout across Europe. You'll design, develop, and maintain legacy systems using Guidewire and other technologies, delivering high-quality solutions within ...

Title: Senior KDB+ Developer Location: London, UK (Hybrid)Job Type: Contract - Inside IR35 Role Overview 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 ...

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 ...

Wanted: Senior Developer - not just another coding job. Real ownership. Real impact. Are you driven by building clean, scalable systems that solve real operational problems? Do you thrive on taking ownership - from understanding workflows through to delivering production systems? Would you like to work directly with clients ...

Title: Senior Full Stack Developer (React & C#.NET) Contract Length: 12 Months Location: London - 3 Days a week Daily Rate: Circa £650/Day (Inside IR35) About the Role Join our dynamic team as a Senior Full Stack Developer, where your expertise in React JS and C# ...

Senior Student Systems (SITS) Analyst Developer Fixed Term Contract vacancy in a University based in Bedfordshire Salary £48,760 - £58,664, 36 days annual leave plus bank holidays, flexible hybrid working policy, generous 14.5% employer pension contribution and other generous benefits The Opportunity: Hays Technology is working … partnership with a well-established higher education organisation to recruit a Senior Student Systems Analyst Developer on a fixed-term contract basis until July 2027. This is a key role within a central IT function, supporting and enhancing core student information systems used across the full student lifecycle.You ...

Senior Student Systems (SITS) Analyst Developer Fixed Term Contract vacancy in a University based in Bedfordshire Salary £48,760 - £58,664, 36 days annual leave plus bank holidays, flexible hybrid working policy, generous 14.5% employer pension contribution and other generous benefits The Opportunity: Hays Technology is working … partnership with a well-established higher education organisation to recruit a Senior Student Systems Analyst Developer on a fixed-term contract basis until July 2027. This is a key role within a central IT function, supporting and enhancing core student information systems used across the full student lifecycle.You ...

Senior UI UX Developer (GCB4) Our client, a leading global supplier for IT services, requires experienced UI UX Developer to be based at their client's office in Sheffield. This is a hybrid role - you can work remotely in the UK and attend the Sheffield office … 6+ month temporary contract to start ASAP Day rate: Competitive Market rate Our client seeking a customer-focused and customer-centric UI/UX Developer to design and deliver intuitive user interfaces that enhance the end-user experience. You will play a key role in shaping the usability ...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic … autonomous systems that plan, build, and operate security awareness and human risk workflows, supported by strong guardrails and observability. We’re looking for a Senior Backend Developer who wants to build production-grade backend services that power these systems, working in a multinational, AI-first engineering team where ...

Senior Front End Developers (React, TypeScript)Guildford, Surrey (Office-Based)£70000 - £100000 + 25% Bonus, 10% Pension, Private Medical. Must haves:- Must work 5 days per week in the office in Guildford.- Must have worked in a Senior Developer role already. Your new company This leading engineering … software provider is expanding its Front End capability with 2 new Senior React hires as part of a major modernisation of its global product suite. You will be working in their state-of-the-art offices in the heart of Guildford 5 days per week, close to the University ...

Senior Django/Python Developer Pay Rate: up to £700 (Inside IR35 - Umbrella) Duration: 6 months' Working arrangement: Once a every 3 months - London We're working on behalf of aFTSE 100 leading UK retailer, supporting the expansion of a highly successful AI-driven Smart Pricing programme. Following … results across well-known UK household brands, the organisation is now extending this platform across its European operations and is looking for an experienced Senior Django/Python Developer to support the next phase of delivery. This is a pure backend role, focused on scalable, high-quality Python ...

Senior Software Engineer (Full Stack) | Manchester, Hybrid | £55,000 - £65,000 Overview We're supporting a growing, tech company in their search for a Senior Software Engineer to help drive the evolution of their platform. This role suits someone who enjoys building robust applications, influencing technical direction … Experience working within a cross-functional product development team Benefits Flexible working hours 25 days holiday + bank holidays Pension scheme New tech provided Senior Software Engineer (Full Stack) | Manchester, Hybrid | £55,000 - £65,000 Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this ...

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 ...