126 to 150 of 1,081 Senior Developer Jobs

Senior NET Developer - Oracle to PostgreSQL Migration Project Location: Nottingham/London - Hybrid Length: ASAP - Jan 2026 (6 months) Rate: £540 Hours: 9-6pm About the Project We are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and .NET (C#). This is not a More ❯

Senior NET Developer – Oracle to PostgreSQL Migration Project Location: Nottingham/London - Hybrid Length: ASAP – Jan 2026 (6 months) Rate: £540 Hours: 9-6pm About the Project We are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and .NET (C#). This is not a More ❯

our team. We work incredibly hard for our customers and believe deeply in our core values. We're a high-energy, high-growth team and we love to win. Senior Application Developer The Senior Application Developer will design, develop, refactor, enhance, test and evaluate, and support software applications currently hosted on-premises to be hosted within … with the Government as a subject matter expert (SME). If you're right for this role, you have: Five (5) or more years of experience as a software developer in building multi-tier framework software applications using object-oriented programming languages, such as Java and Python; One (1) or more years of experience with cloud (AWS preferred) application More ❯

in three key offices/functional areas: Cyber Monitoring and Operations, Cyber Threat and Investigations, and Technology Innovation and Engineering State. About The Role Peraton is looking for a Senior Power BI Developer to become part of Peraton's Department of State (DOS) Diplomatic Security Cyber Mission (DSCM) program providing leading cyber and technology security experience to enable … innovative, effective and secure business processes. Location: Arlington, VA We are currently seeking a Senior Power BI Developer with experience in SharePoint Development and Administration to join our team. As the ideal candidate, you will need to be skilled in creating data visualizations with various backend data sources, designing data models, and writing complex queries. Additionally, you will … Maker Associate Microsoft Certified: SharePoint Server Hybrid Microsoft Certified: Teamwork Administrator Associate Microsoft Certified: Microsoft 365 Certified: Enterprise Administrator Expert Microsoft Certified: Azure Administrator Associate Microsoft Certified: Power Platform Developer Associate Microsoft Certified: Azure Data Scientist Associate Microsoft Certified: Azure Data Engineer Associate SCA/Union/Intern Rate or Range Details Target Salary Range: $112,000 - $179,000. More ❯

you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives. Position Overview The Senior Software Developer will design and develop complex new software products, or make significant enhancements to existing software. The ideal candidate is a hands-on developer with significant More ❯

Overview i3 is searching for a Senior Software Developer to support the Missile Defense Agency Information Management and Software Services (AIMSS) effort. The mission is to design and implement a Missile Defense System with multiple layers of protection. The Senior Software Developer works with teams and customers to build and modify software by writing code, debugging More ❯

professional coder to take a leading role in development and support, while translating business requirements into effective solutions that align with both strategic business goals and technology roadmaps. As senior developer, you will lead on mentoring/upskilling less experienced team members and leading in Epics/Sprints including planning. You will form a central role as part … s stand-up meeting for the current sprint where you'll discuss your workload and any blockers, or you may attend a major incident management meeting where as the senior engineer on call have worked on problem root cause and resolution. Next, you may have development coding which could be a new function, problem fix or project related activity. … on the application and central bank settlement. You may draft and raise a change request through the Bank's formal processes or attend an audit representing technology. As a senior engineer, you may hold learning/master class sessions so that colleagues in your team, and more widely, better understand the tools/applications you support. Depending on the More ❯

professional coder to take a leading role in development and support, while translating business requirements into effective solutions that align with both strategic business goals and technology roadmaps. As senior developer, you will lead on mentoring/upskilling less experienced team members and leading in Epics/Sprints including planning. You will form a central role as part … s stand-up meeting for the current sprint where you'll discuss your workload and any blockers, or you may attend a major incident management meeting where as the senior engineer on call have worked on problem root cause and resolution. Next, you may have development coding which could be a new function, problem fix or project related activity. … on the application and central bank settlement. You may draft and raise a change request through the Bank's formal processes or attend an audit representing technology. As a senior engineer, you may hold learning/master class sessions so that colleagues in your team, and more widely, better understand the tools/applications you support. Depending on the More ❯

Job Title:Senior Symfony Developer Company: Genie Ventures Ltd Department: Genie Shopping Network Location: Flexible - Distributed with use ofCambridge officeand occasional travel Working Hours: Full Time 37.5 hours per week with flexible working arrangements Salary Range: £55,000 - £64,500pa About Us Genie Shopping is into its next growth phaseand being part of the Development team is at … this. As a part of Genie Ventures,Best Team in Performance Marketing 2025 and certified a Great Place to Work 2024-25, Genie Shopping is looking for our next Senior Symfony Developerto join us,bringing bigger and better results to our existing accounts. The team worksin a collaborative, distributed environment where we're striving to be the best team … are requirements to travel to Cambridge once a month, with London (or other UK locations) once a month on average. Job Overview We're looking for a hands-on developer to join Genie Shopping, a fast-growing comparison shopping service business which is a certified Great Place to Work! Where and who? The role is full-time and fully More ❯

Join a Leading Tech Innovator - Senior Backend Software Engineer (Belfast) MCS Group is delighted to once again partner with one of our long-standing clients in the search for a Senior Backend Software Engineer to strengthen their expanding technology team in Belfast. If you are passionate about building cutting-edge platforms that revolutionise how businesses connect, this could More ❯

Join a Leading Tech Innovator - Senior Backend Software Engineer (Belfast) MCS Group is delighted to once again partner with one of our long-standing clients in the search for a Senior Backend Software Engineer to strengthen their expanding technology team in Belfast. If you are passionate about building cutting-edge platforms that revolutionise how businesses connect, this could More ❯

12th consecutive year! Want to work with highly motivated individuals that come together to form high performance team? Come join WWT today! We are looking for a Sr Cloud Developer to join our Government Services team to support our client fully onsite in St Louis, Mo and Sprinfield, Va. Why should you join the Government Services team? Our Government … us out on our platform: Location: St Louis, Mo and Springfield, Va What Will You Be Doing? World Wide Technology, LLC has an opportunity available for a Sr Cloud Developer as part of a development team, utilizing Agile scrum methodology, which is responsible for developing a Enterprise "Self Service" Web tool which provides an approval workflow to provision Cloud More ❯

Position Description: CGI Federal has an exciting opportunity for a Web Developer within our Intel sector advancing the national security mission through cutting edge technology. You must have a passion for keeping pace with rapidly evolving technology advancements and leveraging your knowledge on a highly collaborative team to deliver state-of-the-art capabilities. You will be responsible for … degree related to the labor category from a college or university accredited by an agency recognized by the U.S. Department of Education and an additional 2 years of related senior experience, for a total of 10 years, as a substitute to the Masters degree. Security Clearance: TS/SCI with CI Poly Required: HTML 5, CSS/SCSS, JavaScript More ❯

Join Net World Sports on our mission to become the world's leading sports equipment retailer. Nothing excites us more than finding hungry, talented individuals and unleashing them in a team capable of achieving incredible things. WHAT YOU'LL DO More ❯

R- Description We have an immediate need for a Sr. Software Engineer with strong systems, software, cloud, database, and Agile experience to support a complex program to provide Agile development and operations and maintenance for critical systems. Based in DevOps More ❯

Senior .NET Full Stack Developer Oxford | Remote | Competitive Salary (DOE) A leading software company based in Oxford is looking for a Senior .NET Full Stack Developer to join their growing team. This is a key role delivering high-quality software solutions for both UK-based and international clients. As a Senior Developer, you'll … Benefits: Competitive base salary Flexible remote working Exposure to exciting, bespoke projects Ongoing learning and development opportunities Clear career progression paths If you're an experienced .NET Full Stack Developer looking to work on meaningful projects within a supportive and innovative environment, apply now for immediate consideration. Thank you,Elliot Oscar Associates (UK) Limited is acting as an Employment More ❯

Senior Software Engineer Hybrid Working - 3 Days in the office per week Central Manchester based Salary range: £80,000 - £90,000 Are you a highly experienced senior software engineer with expertise Java, Spring boot, AWS and Terraform? Looking for a hybrid working role where you can be in the office a few days per week collaborating with other … are partnered with an exciting new client based in central Manchester, they are a smaller sized business but well established and stable. The client are looking to recruit a Senior Java Software Engineer to lead the development on platform engineering for their Java-based backend. You'll be helping to expand their infrastructure-as-code, and working as a … of new feature development then you are exactly who we're looking for! Technologies in use: Java, Spring boot, AWS, Terraform, Docker, Vue.js, TypeScript, NoSQL databases more! Role requirements: Senior/Lead experience as a Java developer using Spring boot Experience with AWS and Infrastructure-as-code (Terraform) Ability to lead on projects and mentor less experienced engineers More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Lead Software Engineering role in a growing SaaS product company ? Keen to grow your technical skills around .Net 8, assist the CTO directly with the adoption of the latest AI/LLM dev tools (Cursor, v0) & act as lead/mentor to a small Dev' team? If … 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: Lead Software Developer or Senior Software Developer looking for a step up to Lead. Location: Banbury, Oxfordshire. 3 days a week in the offices, 2 from home. Salary: ~ £65K (£60K … Master, excellent technical product team & obviously software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+) - MySQL - GitHub actions, Azure - Playwright, Docker - Any exposure More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Lead Software Engineering role in a growing SaaS product company ? Keen to grow your technical skills around .Net 8, assist the CTO directly with the adoption of the latest AI/LLM dev tools (Cursor, v0) & act as lead/mentor to a small Dev' team? If … 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: Lead Software Developer or Senior Software Developer looking for a step up to Lead. Location: Banbury, Oxfordshire. 3 days a week in the offices, 2 from home. Very commutable from … Master, excellent technical product team & obviously software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v8+) - MySQL - GitHub actions, Azure - Playwright, Docker - Any exposure More ❯

Remote/Travel to London twice per month An opportunity for a Senior Back-End Developer to join a growing fintech company, working on a ground-breaking trading platform in a team of seasoned entrepreneurs, finance, and tech professionals. The role: We are seeking a Back End Developer to join our team and support the design and More ❯

Are you an experienced .Net (C#) Developer, looking to take on a Lead Software Engineering role in a growing SaaS product company ? Keen to grow your technical skills around .Net 8, assist the CTO directly with the adoption of the latest AI/LLM dev tools (Cursor, v0) & act as lead/mentor to a Dev' team? If yes … 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: Lead Software Developer or Senior Software Developer looking for a step up to Lead (we would need to see some small team Lead experience though) Location: Banbury, Oxfordshire. Hybrid … Master, excellent technical product team & obviously software engineers in your team. Our tech stack, below. But, in the main, if you have solid experience in .Net (C#) at a senior or lead level, please get in touch! - C#/ASP.NET (Core & Framework) and modern JavaScript/TypeScript frameworks, particularly Angular (v18+) - MySQL - GitHub actions, Azure - Playwright, Docker - Any exposure More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and … 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 Front End 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 Front End 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 PHP, Symfony, AWS, MySQL, Microservices, CI/CD Salary up to £70k Hybrid working in Chester For more information, please email me directly at or call on 07880 358 148. Who We Are: We're a collaborative and fast-paced technology team responsible for developing and maintaining a highly available, in-house software platform. Our … scalable services, and engaging user interfaces. We value quality engineering, secure design, and continuous improvement across the stack. Who We're Seeking: We're on the lookout for a Senior Software Developer with strong backend skills and experience across a modern cloud-native tech stack. You'll help design and implement robust, secure systems, write clean and testable More ❯

Full Stack JavaScript Developer Location - Largely remote with a need to travel to Southampton once a quarter Salary - £60,000 - £70,000 An industry leading organisation is looking for a number of Full Stack Developers to join the company at an exciting time of transformation and change. Suitable candidates will have an emphasis on driving coding standards and will More ❯

Bloomsbury Square, London, United Kingdom Job Summary: We are seeking a Senior MuleSoft Developer to lead API design, development, and integration using the MuleSoft Anypoint Platform. The ideal candidate will be responsible for architecting scalable and high-performance integration solutions, mentoring junior developers, and ensuring best practices across the integration lifecycle. Key Responsibilities: Design, build, and maintain integrations … SaaS platforms Familiarity with OAuth2, JWT, SAML , and other authentication mechanisms Knowledge of CI/CD tools and DevOps practices Strong communication and documentation skills Preferred Qualifications: MuleSoft Certified Developer (Level 1 or 2) Experience with CloudHub , Runtime Fabric , or on-premise deployments Background in Java or other object-oriented programming languages Experience working in Agile/Scrum environments More ❯