1 to 25 of 81 Permanent Senior Developer Jobs in the South East

Senior Software Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is … committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Software Developer -Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Optimize components for maximum performance across a vast array of web- capable devices and browsers. Maintain code and … the highest quality. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Software Developer -Experience Required Proven experience as a Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for More ❯

Senior Full Stack Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation … is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Developer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guide and develop the skills of junior engineers. Optimize components for maximum performance across a vast … quality and speed. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Developer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and More ❯

Senior Developer Milton Keynes (hybrid) £40,000 - £60,000 Our client requires a Senior Developer with strong experience in C#, Azure (or similar cloud-based web applications) and JavaScript to join their growing team. You will have the flexibility of hybrid working and spend 3 days a week in their office. You will play a key … Agile workflows Collaborate closely with cross-functional teams Stay up to date with emerging technologies and propose innovative solutions Look after complex coding tasks Skills: Proven experience as a Senior Developer or similar role Strong proficiency in C#, .NET, Azure Solid experience with JavaScript and modern front-end frameworks Excellent communication and leadership skills Ability to deliver complex … projects to tight deadlines Outstanding attention to detail and with a focus on performance, security and maintainability If you have the skills and experience of a Senior Developer, ready to take the next step in your career and made a real impact, we’d love to hear from you. Our client offers hybrid working arrangements, a competitive salary More ❯

Are you an experienced .Net (C#) Developer, with "full stack" capability around Angular & Asp.Net , 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 … 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 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: £60K - £65K Basic range + Benefits package. We can potentially be flexible though - so please just get in touch! You will be working in More ❯

Senior SAP Developer Location: Portsmouth, GB, PO6 3EN Onsite or Hybrid: Hybrid Job Title: Senior SAP Developer Location: Flexible, UK + Hybrid Working Arrangements Compensation: Highly Competitive Salary + Benefits Role Type: Full time/Permanent Role ID: SF 61128 At Babcock we're working to create a safe and secure world, together, and if you … join us, you can play your part as a Senior SAP Developer. The role As a Senior SAP Developer, you'll have a role that's out of the ordinary. Working with our internal customers, you will deliver, maintain, troubleshoot, and enhance SAP functionality across our UK Business areas. Day-to-day, you'll be a subject … emerging standards and best practice for the service. This role is full time, 37.5 hours per week and provides hybrid working arrangements with occasional travel. Essential experience of the Senior SAP Developer Strong SAP background in implementation and support. Demonstrable and strong knowledge of OData, CDS, ABAP, WebDynPro, Workflow, Fiori and UI5. Highly beneficial to have experience of 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 Frontend Developer | £50,000 - £60,000 | Guildford | Hybrid At Jonothan Bosworth | Recruitment Specialists, we’re looking for a Senior Frontend Developer to lead the development of modern, scalable web applications, to join a fast-growing technology provider This is a chance to play a pivotal role in shaping frontend engineering practices, driving innovation, and creating More ❯

Senior Software Developer London – Twice a week in the office £70,000-£90,000 I’m currently working for a well-established tech consultancy business of over 70 years who are based in Central London and looking for a Senior Software Developer , paying up to £90,000 and requiring office working of twice a week. The More ❯

Senior Software Developer London – Twice a week in the office £70,000-£90,000 I’m currently working for a well-established tech consultancy business of over 70 years who are based in Central London and looking for a Senior Software Developer , paying up to £90,000 and requiring office working of twice a week. The More ❯

Senior Java Developer - Remote Working 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 requirements and … for and contributing to best practices in software engineering across teams and projects Key skills and experience: 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 ❯

Senior React Developer React, TypeScript, API, HTML, CSS, JavaScript Fareham, Hampshire. This role is to work in the office full time. Salary circa £40,000 - £60,000 plus benefits In 2023, cybercrime cost UK businesses an estimated £21 billion. But don't think its the just the big corporates at risk, the average cybercrime value in the UK … for you and your future self! They have built a suite of innovative products designed to offer superior protection against a broad spectrum of online threats. The role of Senior React Developer is a new position in the team demonstrating the increasing demand for a robust cyber solution. Working with a talented software team you will be helping More ❯

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 of £60000 - 80000 + benefits. 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, table designs, SQL queries and more. In addition you must also have worked in a large and complex environment. Ideally you will have worked in a software product … A strong and stable career history. * Proven experience of working in a large and complex environment. * Degree level or equivalent education This is an excellent opportunity for a skilled Senior Oracle developer who enjoys hands-on coding in a complex and large transactional environment. Working within a skilled team of Oracle developers you will be developing software for More ❯

Senior C# .NET Developer - WealthTech - Remote or Hybrid The Opportunity We're delighted to be working with our prestigious WealthTech client who are seeking an exceptional Senior C# .NET Developer to work on their proprietary software within their well established team. Our client delivers cutting-edge software solutions for some of the UK's largest financial … services companies and has established themselves as a key player in the FinTech space. This is a fantastic opportunity for an experienced Senior C# .NET Developer with good object-oriented analysis and design skills, familiarity with design patterns and practices to work for an award winning company. . The role offers excellent career progression within a fast-growing More ❯

Senior Software Developer - £100k - Discretionary Bonus - Hybrid Overview We are partnering with a global digital marketing and technology agency specialising in online gaming to hire a Senior Software Developer. In this senior role, you’ll take technical ownership of solutions end-to-end, mentor junior developers, and ensure delivery of highly scalable, high-availability platforms that … drive cutting-edge online gaming experiences.You’ll also play a senior position in driving the move from a PHP-heavy stack to a modern TypeScript/React front end, helping define and deliver greenfield solutions with a premium, customer-first focus. Role and Responsibilities Drive full-stack development projects, ensuring high-quality delivery across both frontend and backend. Act More ❯

Senior Full-Stack Developer Milton Keynes Up to 55,000 Do you want to be part of a mission-driven team building transformative tech for global infrastructure? Working on high-impact projects, collaborating across continents, and shaping the future of enterprise platforms? If yes, this could be the perfect role for you! Our client is a fast-growing … technology company, delivering cutting-edge enterprise platforms for Hyperscale datacenter providers, FTSE 100 companies, and global clients. As Senior Full-stack Developer, you will: Architect and build scalable web applications for global datacenter platforms Lead development of client portals and real-time dashboards Integrate telemetry systems with BMS/PMS for IoT and datacenter monitoring Mentor developers and More ❯

Senior Full-Stack Developer | Milton Keynes | Up to £55,000 Do you want to be part of a mission-driven team building transformative tech for global infrastructure? Working on high-impact projects, collaborating across continents, and shaping the future of enterprise platforms? If yes, this could be the perfect role for you! Our client is a fast-growing … technology company, delivering cutting-edge enterprise platforms for Hyperscale datacenter providers, FTSE 100 companies, and global clients. As Senior Full-stack Developer, you will: Architect and build scalable web applications for global datacenter platforms Lead development of client portals and real-time dashboards Integrate telemetry systems with BMS/PMS for IoT and datacenter monitoring Mentor developers and More ❯

About the role We arepartnering with a fast-growing SaaS company basedin Bedfordshire. They are looking for a talented Senior Developer to join their collaborative development team. Youll play a key role in designing, building, and optimising a platform that replaces outdated processes with real-time, digital solutions. This is a hands-on position where youll work across More ❯

Senior Software Developer - Transform Public Sector Tech No sponsorship can be given Location: Surrey (Office-based during probation, then Remote/Hybrid) Salary: £55,000 - £60,000 + Excellent Benefits Experience: 5+ years Ready to make a real impact?Join a thriving UK SaaS company that's revolutionizing how the public sector connects with citizens. We're the … JavaScript, TypeScript, C# Experience with microservices, containerization (Docker) Knowledge of SQL & NoSQL databases CI/CD pipeline experience What's In It For You?Clear career progression to Lead Developer roles Health insurance (year 2+) & pension Flexible working post-probation Continuous learning & mentorship opportunities Work on software that genuinely matters to society Ready to level up your career while More ❯

Position: Senior Python Developer Employment Type: Contract Start: ASAP (October/November 2025) Duration: 6 Months Location: London, UK - Hybrid Language(s): English Focus on SAP is a specialist SAP and ERP Recruitment organisation offering both permanent and contract staffing solutions on a global scale. Client – Partnered with a global leader in digital transformation and IT services, working … for the people and communities they serve. For you, this means working on challenging projects that demand innovation, collaboration, and thought leadership . Role – We are seeking a talented Senior Python Developer to join a global orgnisation within its Trading Analytics & Insights division. The team is responsible for delivering data-driven solutions, analytical models, and digital tools that More ❯

Position: Senior Python Developer Employment Type: Contract Start: ASAP (October/November 2025) Duration: 6 Months Location: London, UK - Hybrid Language(s): English Focus on SAP is a specialist SAP and ERP Recruitment organisation offering both permanent and contract staffing solutions on a global scale. Client – Partnered with a global leader in digital transformation and IT services, working … for the people and communities they serve. For you, this means working on challenging projects that demand innovation, collaboration, and thought leadership . Role – We are seeking a talented Senior Python Developer to join a global orgnisation within its Trading Analytics & Insights division. The team is responsible for delivering data-driven solutions, analytical models, and digital tools that More ❯

Lead Software Developer required by a leading global Cloud Technology company based in Bracknell. The company are working on cutting-edge technology including AI and propensity modelling. The Lead Software Developer will be responsible for the software engineering output of the team. This will be a leadership role however success candidate will be expected to be hands-on … writing code when required, as well as designing architecture. Therefore the successful candidate will have strong hands-on coding knowledge. The company are happy to consider a Senior Developer who is looking to step up into more of a leadership role. They operate on a hybrid model which involves 3 days in the office and 2 days from More ❯

Lead Software Developer required by a leading global Cloud Technology company based in Bracknell. The company are working on cutting-edge technology including AI and propensity modelling. The Lead Software Developer will be responsible for the software engineering output of the team. This will be a leadership role however success candidate will be expected to be hands-on … writing code when required, as well as designing architecture. Therefore the successful candidate will have strong hands-on coding knowledge. The company are happy to consider a Senior Developer who is looking to step up into more of a leadership role. They operate on a hybrid model which involves 3 days in the office and 2 days from More ❯

Senior React Developer React, TypeScript, API, HTML, CSS, JavaScript Fareham, Hampshire. This role is to work in the office full time. Salary circa £40,000 - £60,000 plus benefits In 2023, cybercrime cost UK businesses an estimated £21 billion. But don't think its the just the big corporates at risk, the average cybercrime value in the UK More ❯

Senior PHP Developer £70,000 - £85,000 + Benefits Remote (with monthly travel to Southampton) Tired of talking in circles, writing specs for others, and chasing blockers that never move? This role is for a hands-on developer who wants to own code, build systems that matter, and work somewhere with zero tolerance for ego or excuses. More ❯