1 to 25 of 55 Contract Senior Developer Jobs in England

Senior Developer - Active SC, Java, Oracle Up to £550 per day (Inside IR35) London/Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Senior Developer with Active Security Clearance (SC), to join a business-critical programme. Key Requirements: Proven experience … working as a Senior Developer within the public sector. Active Security Clearance (SC) Advanced proficiency in Java technologies (SE 8, EE 5/6/11, EJB, JSP) Proven experience supporting and modernising legacy applications Demonstrated ability to refactor complex codebases and develop robust automated tests Strong background ...

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering lifecycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker ...

Senior C++ Developer/Software Engineer - London Based in the City of London (2 days in the office)/6 months rolling/£750 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer … 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 ...

Senior Developer - Projects - SC Cleared - Full time onsite - Milton Keynes - £560 Inside IR35 One of our government clients is looking for an experienced Senior Developer to join them for a 6 month contract. They are offering £560 per day INSIDE IR35. Our client is based near ...

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions click apply for full job details ...

Senior Backend Developer (Java/Kotlin). Public Sector Contract. Transform Crime Data Management and Make a Difference. Up to £700 a day Inside IR35. 6 Month contract. Hybrid working from a hub of UK wide offices. Join the Electronic Monitoring team, a dedicated group focused on revolutionising … processes crime data efficiently. - Professional Growth: Engage with cutting-edge technologies and methodologies, enhancing your skill set and career trajectory. Key Responsibilities for the Senior Backend Developer: - Design and implement backend infrastructure to process crime data CSV files received from the police.- Develop APIs for secure data exchange ...

ServiceNow Senior Developer (HR Suite) – London (Hybrid) Contract | £600/day (Outside IR35) | Immediate Start Role Overview Morela is supporting our client on an exclusive basis . We are seeking a ServiceNow Senior Developer with strong HRSD (HR Service Delivery) experience and exposure to CBS . ...

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Reed.ai is building the future of recruitment technology. We’re a small, fast-moving, and ambitious team on a mission to transform how people find work and employers discover talent—powered … want to build something meaningful from the ground up, this is the role for you. Key Responsibilities Contribute to our excellent team of 6 senior engineers, setting technical direction while coding and problem-solving. Own the end-to-end delivery of features, ensuring speed, scalability, and quality are never ...

Senior Developer Data and BI Sub Department Corporate Information Systems Location St Johns Campus Salary £38,249 to £42,882 Post Type Full Time Contract Type Fixed Term - Ends 30/11/2026 Closing Date Monday 02 February 2026 Reference IT2601 We are seeking an experienced Power … Developer to support our data team during a period of growth. The position will begin as maternity cover for the BI lead and could potentially evolve into a permanent role reporting to the BI lead, forming a dedicated Power BI team. Responsibilities include managing the existing reporting suite ...

Senior Software Engineer | Java | AI | London | £500-£600/day About the Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This is a unique opportunity … Senior Software Engineer to work at the cutting edge of AI-driven development. The Opportunity As a Senior Software Engineer, you'll join a small, innovative team modernising and simplifying critical legacy services using cutting-edge AI tooling. You'll demonstrate what's possible when AI is deeply ...

Role Title: ServiceNow Senior Developer Duration: contract to run until 31/03/2026 Location: London, Hybrid working Rate: up to £690 p/d Umbrella inside IR35 Clearance required: MOD SC clearance is essential. Role purpose/summary The Platform Developer will: Demonstrate strong customer ...

recruiting for a Salesforce Senior Developer to work on a remote basis. The role falls inside IR35 so you will need to work through an umbrella company for the duration of the contract. You will design, implement, and test new functionalities and features in Salesforce to meet business ...

Senior Power Platform Developer London, Hybrid (4 days onsite), Outside IR35 £500-£620 (DOE) Location: UK (Hybrid/Remote options • Employment: Permanent Senior Power Platform Developer is required by high-growth, tech-driven client who are currently scaling up their operations. This is a hands … senior role where you’ll own the end-to-end delivery of apps, automations and dashboards, shape platform strategy and governance, and be the go-to expert for stakeholders across technology and the wider business. The role Design, build and maintain solutions using Power Apps, Power Automate, Power ...

specialist that provides support to the clients across EMEA, APAC, US and Canada. We have an excellent job opportunity for you. Job Title: ServiceNow Senior Developer Pay Rate: £671 per day inside IR35 Location: Hybrid-occasional travel to London Contract duration: 31/03/2026 Must have … clearance Job Description: The Platform Developer will: Demonstrate strong customer and stakeholder-management skills, acting as a key point of engagement and guidance on the suitability of ServiceNow for business needs. Develop custom ServiceNow applications. Build CPA service functionality to meet user needs and ACOE service requirements. Follow industry ...

Senior Outlook Add in Developer | £500-£550p/day (Inside IR35) | London (Hybrid, 2/3 days in office) | 10 month contract Our client is looking for a experienced Outlook Add-in Developer to help support add-in solutions within a enterprise scale messaging environments. The focus … religion/beliefs, or any other reason which cannot be shown to be justified If this sounds like a good fit, apply now! Senior Outlook Add in Developer | £500-£550p/day (Inside IR35) | London (Hybrid, 2/3 days in office) | 10 month contract Oscar Associates ...

Senior Outlook Add in Developer | £500-£550p/day (Inside IR35) | S.Yorkshire | (Hybrid, 2/3 days in office) | 10 month contract Our client is looking for a experienced Outlook Add-in Developer to help support add-in solutions within a enterprise scale messaging environments. The focus … religion/beliefs, or any other reason which cannot be shown to be justified If this sounds like a good fit, apply now! Senior Outlook Add in Developer | £500-£550p/day (Inside IR35) | S.Yorkshire | (Hybrid, 2/3 days in office) | 10 month contract Oscar Associates ...

gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Role: Senior Java Developer Duration: 12 Months Location: Welwyn Garden City (2 to 3 days in office) Rate: £700 inside umbrella As a Senior Java Developer, you will be a vital contributor to our projects, providing technical leadership and driving key features from conception to delivery. Here's what you can expect: Develop High-Quality Software: Utilize your Java expertise (Spring Boot or other frameworks) to create efficient and scalable solutions. Embrace ...

Senior Backend Python Developer 6-Month contract - Inside IR35 - £450-£480 per day Leeds based - hybrid working - 3 days onsite Responsibilities Build and maintain backend services and APIs in line with existing architectural patterns and standards. Implement business logic, data access layers, and integrations with internal and external ...

Senior Power Platform Developer London, Hybrid (4 days onsite), Outside IR35 £500-£620 (DOE) Location: UK (Hybrid/Remote options Employment: Permanent Senior Power Platform Developeris required by high-growth, tech-driven client who are currently scaling up their operations. This is a hands-on, senior ...

Senior Power Platform Developer London, Hybrid (4 days onsite), Outside IR35 £500-£620 (DOE) Location: UK (Hybrid/Remote options Employment: Permanent Senior Power Platform Developeris required by high-growth, tech-driven client who are currently scaling up their operations. This is a hands-on, senior ...

Title: Senior Java Developer Location: Manchester/Leeds - UK, (60% Hybrid) Pay Rate: Depends on Experience Type & Duration: Contract |12 Months Contract with InsideIR35 Job Description: Key Responsibilities: Join a multidisciplinary Agile team to work on the UK Public sector welfare reform program. Focus on designing, developing ...

Position: Senior Java Microservices AWS developer Location: London, UK (2 days a week from office) 6 months contract position The Role As Senior Java Microservices AWS developer with a strong hands-on experience, you will design and develop scalable, cloud-native web applications using Java … Test-Driven Development (TDD) Agile/Scrum methodology experience. Desirable skills/knowledge/experience: (As applicable) Familiarity in front end technologies. AWS Certification (Developer or Solutions Architect). Knowledgeable of Service now tool. ...

Title: Senior Java Developer Location: Manchester/Leeds - UK, (60% Hybrid) Pay Rate: Depends on Experience Type & Duration: Contract 12 Months Contract with InsideIR35 Job Description: Key Responsibilities: Join a multidisciplinary Agile team to work on the UK Public sector welfare reform program click apply for full ...

Role: Senior Mobile Applications Developer Clearance: SC required Location: Hybrid - up to 2 days onsite in High Wycombe (as required) Working Pattern: Full-time IR35: Inside IR35 Start Date: ASAP Contract End Date: 27 February 2026 Role Overview: We are looking for an experienced Senior Mobile Applications … Developer to support the ongoing development of existing mobile applications. The role will focus on implementing new features and ensuring applications are updated and compatible with the latest operating system versions. Key Skills & Experience: Strong experience in iOS development using Swift and UIKit Experience with Java Ability to work ...

Role: Senior Mobile Applications Developer Clearance: SC required Location: Hybrid - up to 2 days onsite in High Wycombe (as required) Working Pattern: Full-time IR35: Inside IR35 Start Date: ASAP Contract End Date: 27 February 2026 Role Overview: We are looking for an experienced Senior Mobile Applications … Developer to support the ongoing development of existing mobile applications click apply for full job details ...