1 to 25 of 83 DemandTrendPermanent Senior Developer Jobs in the South East

Are you an experienced Senior Full Stack Developer who loves solving real problems with clean, scalable code? Want to work on meaningful projects with great people using modern tools? This isn't just another dev job — you'll be hands-on, highly trusted, and making real product decisions from the get-go, your ideas won't be buried … a new mobile application and the development of a newly redesigned application. If you fancy joining a friendly team who love working and socialising together, please read on... Role: Senior Full Stack .Net Developer aka Senior Full Stack Software Engineer, Senior Developer, Senior Software Developer, Senior .Net Developer, Full Stack Developer, Lead .Net Developer Location: Milton Keynes - Hybrid working is in place with a minimum of 3 days a week in the office. Pool table, FREE BAR Fridays and top-quality coffee. Salary: £60k - £70k base + Bonus, great benefits and future potential share options In you're toolkit you will bring experience of C#, .Net 8+, Asp.Net MVC More ❯

Are you an experienced Senior Full Stack Developer who loves solving real problems with clean, scalable code? Want to work on meaningful projects with great people using modern tools? This isn t just another dev job you ll be hands-on, highly trusted, and making real product decisions from the get-go, your ideas won t be buried … a new mobile application and the development of a newly redesigned application. If you fancy joining a friendly team who love working and socialising together, please read on Role: Senior .Net Developer aka Senior Software Engineer, Senior Developer, Senior Software Developer, Full Stack Developer, Lead .Net Developer Location: Milton Keynes - Hybrid … some front end development skills with the likes of JavaScript, jQuery, React, angular etc. We use Stimulus as a front end framework. If you're a seasoned Full Stack Developer who thrives on building real features that deliver real value, we d love to hear from you. More ❯

Are you an experienced Senior Full Stack Developer who loves solving real problems with clean, scalable code? Want to work on meaningful projects with great people using modern tools? This isn't just another dev job — you'll be hands-on, highly trusted, and making real product decisions from the get-go, your ideas won't be buried … a new mobile application and the development of a newly redesigned application. If you fancy joining a friendly team who love working and socialising together, please read on... Role: Senior .Net Developer aka Senior Software Engineer, Senior Developer, Senior Software Developer, Full Stack Developer, Lead .Net Developer Location: Milton Keynes - Hybrid … some front end development skills with the likes of JavaScript, jQuery, React, angular etc. We use Stimulus as a front end framework. If you're a seasoned Full Stack Developer who thrives on building real features that deliver real value, we'd love to hear from you. More ❯

Senior Developer Location: Kings Hill/Hybrid Salary/package: £55,000 per annum Contract type: Permanent Hours: Full time, 37 hours per week We're looking for a skilled Senior Developer to join our team at Commercial Services Group. This is an exciting opportunity to work across desktop, web, and mobile applications, delivering innovative solutions … services to education, public sector, and commercial clients. Our in-house development team plays a critical role in driving digital transformation across the organisation. Why this role matters The Senior Developer role is central to the creation, improvement, and maintenance of applications that support CSG's strategic objectives. By developing robust, secure, and scalable software, you'll help More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Senior Software Engineering role in a growing SaaS product company ? This is a great opportunity to take on a Senior Developer role with a view to progressing into a Lead as the team continues to grow, if of course this is something you would … the above & you'd like to join a growing, recently invested in, actually bringing offshore, back onshore, UK Software company – we'd like to speak with you! Job title: Senior Software Developer aka Senior .Net Developer, Senior Full Stack Developer Location: Banbury, Oxfordshire. Hybrid working: 2 or 3 days per week in the office …/from home office. Flexible on this, but we would like some office time, as a senior figure in the software engineering team. Good commutes from: Oxford, Bicester, Warwick, Coventry, Northampton, Milton Keynes, Rugby, Reading, etc. Salary: £55K - £65K Basic range + Benefits package. We can potentially be flexible though - so please just get in touch! You will be More ❯

Senior Developer (Salesforce Marketing Cloud) Press Tab to Move to Skip to Content Link Working for the OU Vacancies Our locations How to apply Accessibility hub Partners and Subsidiaries Language View profile Employee Login Job Description Senior Developer (Salesforce Marketing Cloud) Apply now Advert Reference Number: 952 Job Location: Milton Keynes Department: Digital Services Salary … initially Closing Date: 7 September 2025 Weekly Working Hours: 37 Contract Type: Permanent Fixed Term Contract: End Date: Welsh Language: Not Applicable Job Description: About the Role As a Senior Developer for Salesforce Marketing Cloud at The Open University, you will lead the design, development, and delivery of innovative software solutions that drive our organization forward. Collaborating with 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 Node.js Developer West London (Hybrid - 3 days in office) Senior Node.js Developer required to join a dynamic start-up, backed by the financial strength of a major travel brand. You will play a key role in shaping and expanding our cutting-edge technology stack. As a key player in our tech team, you'll help … and technical feasibility. Troubleshoot and resolve technical issues, including CI development. Mentoring of Junior Developers Identify opportunities to optimize performance and enhance the user experience. We are looking for: Senior Developer with experience in mentoring more junior colleagues. A self-starter with excellent problem-solving and debugging skills. Strong communication and collaboration abilities. Tech Stack You’ll Work More ❯

Role: Senior Developer Location: London, Hybrid Working Salary: Competitive Salary Package & Benefits Oliver James is seeking an experienced Senior Developer to join a market-leading global re-insurer. This role sits within the actuarial systems function, working closely with technical teams across multiple regions to enhance modelling capability, streamline processes, and deliver innovative solutions. Key Responsibilities More ❯

Role: Senior Developer - (ALM) Location: London, Hybrid Working Available Salary: Competitive Salary Package & Benefits Oliver James is working with a leading global insurer/re-insurer to recruit a Senior Developer specialising in Asset Liability Management (ALM) modelling. This role offers the opportunity to work closely with actuarial, investment, and technology teams to enhance and maintain 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 ❯

Senior React Developer required by a successful technology company whose office is in Staines. Hybrid working - 3 days per week in the office The successful Senior React Developer is likely to have a relevant degree and commercial experience in a similar role. The Senior Software Developer will join an experienced team developing modern interactive More ❯

Senior React Developer required by a successful technology company whose office is in Staines. Hybrid working - 3 days per week in the office The successful Senior React Developer is likely to have a relevant degree and commercial experience in a similar role. The Senior Software Developer will join an experienced team developing modern interactive More ❯

Senior React Developer/Front End Engineer (React TypeScript Data Visualisation) London to £80k Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen 30-40% year on year growth for … the past 10 years and has ambitious growth plans. As a Senior React Developer you'll design and develop new features and enhancements to the front end of the platform with a focus on real-time data visualisation on business critical systems using React. You'll collaborate with backend engineers to build complex financial products. Location/WFH … and Python backend systems You're degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a Senior React Developer you will receive a comprehensive package including: Salary to £80k Private Medical Healthcare including Dental and Vision cover Pension Share Option scheme Employee Wellness Programme Summer More ❯

Senior Software Developer - C# Senior Software Developer required by a leading Cloud Technology company based in Bracknell. The company are working on cutting-edge technology including AI and propensity modelling. This is a brand-new position due to growth and will join a well-established, high calibre development team. The company operate on a hybrid model 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 ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily and … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high-performance backend … to ensure solutions align with business objectives and meet quality standards. What will you need to do it? Minimum Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise More ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily and … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high-performance backend … to ensure solutions align with business objectives and meet quality standards. What will you need to do it? Minimum Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise More ❯

Job Title - Senior Python Developer Base Location: London plus network of 20 offices nationally: www.kpmg88careers.co.uk/experienced-professional/#LeBlender.OfficeLocations The KPMG Audit Technology team is dedicated to building cutting-edge solutions in close collaboration with the Audit function. We blend audit expertise with the latest technology, enabling us to understand the challenges our customers face daily and … about. As a valued team member, you'll be expected to stay current with the tech field and the latest trends in Audit delivery. Why Join KPMG As a Senior Python Developer As a Senior Python Developer, you will play a hands-on role in the design and development of secure, scalable, and high-performance backend … to ensure solutions align with business objectives and meet quality standards. What will you need to do it? Minimum Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise More ❯

Our client is looking for a Senior Lead Developer to help play a key role in out a brand-new technology function. This hybrid role offers a fantastic opportunity with a clear path towards technical leadership or architecture. Senior Lead Developer Bracknell - 3-4 days on site (hybrid) Up to £70,000 per annum The Role … As the Senior Lead you'll be joining at an exciting time, helping to design and deliver digital products and platforms that will reshape the way the business operates. It's a hands-on development role, but also one with real influence-ideal for someone who enjoys mentoring, technical leadership, and working closely with the CTO on shaping long … communication skills. Desirable: Experience with containerization (Docker, Kubernetes). Familiarity with front-end technologies. Knowledge of DevOps practices and tools. Agile/Scrum methodology familiarity. If you're a Senior Developer ready to step into more influence, or a Lead looking for a fresh challenge, please get in touch with to discuss this exciting opportunity. Spectrum IT Recruitment More ❯

Our client is looking for a Senior Lead Developer to help play a key role in out a brand-new technology function. This hybrid role offers a fantastic opportunity with a clear path towards technical leadership or architecture. Senior Lead Developer Bracknell - 3-4 days on site (hybrid) Up to £70,000 per annum The Role … As the Senior Lead you'll be joining at an exciting time, helping to design and deliver digital products and platforms that will reshape the way the business operates. It's a hands-on development role, but also one with real influence-ideal for someone who enjoys mentoring, technical leadership, and working closely with the CTO on shaping long … communication skills. Desirable: Experience with containerization (Docker, Kubernetes). Familiarity with front-end technologies. Knowledge of DevOps practices and tools. Agile/Scrum methodology familiarity. If you're a Senior Developer ready to step into more influence, or a Lead looking for a fresh challenge, please get in touch with (url removed) to discuss this exciting opportunity. Spectrum More ❯

Senior Full Stack Developer/Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon … 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 Full Stack 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 … 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 Full Stack 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 More ❯

Senior Software Developer Location: Surrey office (during probation) then Remote/Hybrid – because we trust you not to code in your pyjamas... much Please do not apply if you need sponsorship, this company does not sponsor. Salary: £55k-£60k Benefits that don't include free pizza (sorry) The Gig Fancy joining a well-established SaaS company that's … been innovating since 1998? They're looking for a Senior Software Developer who enjoys tackling complex technical challenges. You'll be building and maintaining their platform that helps the UK public sector communicate effectively – think of it as WhatsApp for grown-ups with important jobs. What You'll Be Doing Writing code that actually works (revolutionary, we know … keep you alive until then) Pension scheme for when you're too old to remember what coding is Flexible hours and remote working post-probation Career progression opportunities (Lead Developer sounds fancy, doesn't it?) 3-month probation (just to make sure you're not secretly a robot) Why You'll Love It There They've been delivering digital More ❯

Senior Full Stack Developer – Brighton Senior Full Stack Developer required for our client, a tech driven, award winning company based in Brighton. 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 Java Developer - Remote Working - SC Cleared Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering … Key skills and experience: Previous experience working within a consulting organisation or the public sector is essentail Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯