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15 software developer jobs found

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software developer £600 - £700
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Outside Spy
Sep 15, 2026
Duration not stated
SDET - 6 Month Rolling Contract - up to £600 P/D at Hunter Bond, London Area, to £600 per day
£600 per day
Outside Spy London, UK
Title – Software Developer in Test Client – Growing Fintech Rate - Up to £600 P/D Location – London (Hybrid)   We are looking for a talented an enthusiastic SDET to join a rapidly expanding fintech based in London!!   You will get the chance to work along side some of the best SDETs and software engineers that the industry has to offer whilst aiding in the development of their Java platforms!!   If you are a tech driven and enthusiastic individual this is the role for you!!   Requirements:   Strong experience in automation testing - building and implementing frameworks etc Strong experience working with Java/C# Experience with JavaScript Experience working in capital markets finance Experience with performance testing   If this sounds like you then please do not hesitate to reach out!
Outside Spy
Sep 24, 2026
Duration not stated
JWT Developer at Sanderson, London Area, £650 per day
£650 per day
Outside Spy London Area, United Kingdom
JWT / JSON Developer Location: London - Hybrid / 2 days per week onsite Contract Length: 6 months Day Rate: Up to £650 a day (Outside IR35) We're supporting a leading UK financial services organisation in the search for an experienced JWT / JSON Developer to join a high-performing engineering team on an initial 6-month contract. This role will focus on authentication, authorisation and secure service-to-service communication across a large-scale digital platform. You'll be working on OAuth 2.0 and OpenID Connect (OIDC) implementations, JWT-based authentication, and integrations with identity providers within a modern cloud-native environment. Key Responsibilities Develop and maintain authentication and authorisation services Implement OAuth 2.0 and OIDC integrations with identity providers Work with JSON Web Tokens (JWTs), including issuance, validation, signing and key management Contribute to CI/CD pipelines and trunk-based delivery practices...
Outside Spy
Sep 24, 2026
6 Months or more
JWT/JSON Developer at Sanderson Recruitment Plc, London, 6 Months, £600-£650 per day
£600 - £650 per day
Outside Spy London, UK
JWT/JSON Developer Location: London - Hybrid/2 days per week onsite Contract Length: 6 months Day Rate: Up to £650 a day (Outside IR35) We're supporting a leading UK financial services organisation in the search for an experienced JWT/JSON Developer to join a high-performing engineering team on an initial 6-month contract. This role will focus on authentication, authorisation and secure service-to-service communication across a large-scale digital platform. You'll be working on OAuth 2.0 and OpenID Connect (OIDC) implementations, JWT-based authentication, and integrations with identity providers within a modern cloud-native environment. Key Responsibilities Develop and maintain authentication and authorisation services Implement OAuth 2.0 and OIDC integrations with identity providers Work with JSON Web Tokens (JWTs), including issuance, validation, signing and key management Contribute to CI/CD pipelines and trunk-based delivery practices Write and review...
Outside Spy
Sep 24, 2026
Duration not stated
JWT/JSON Developer at Sanderson , London, £600-£650 per day
£600 - £650 per day
Outside Spy London, UK
JWT / JSON Developer Location: London - Hybrid / 2 days per week onsite Contract Length: 6 months Day Rate: Up to £650 a day (Outside IR35) We 're supporting a leading UK financial services organisation in the search for an experienced JWT / JSON Developer to join a high-performing engineering team on an initial 6-month contract. This role will focus on authentication, authorisation and secure service-to-service communication across a large-scale digital platform. You 'll be working on OAuth 2.0 and OpenID Connect (OIDC) implementations, JWT-based authentication, and integrations with identity providers within a modern cloud-native environment. Key Responsibilities Develop and maintain authentication and authorisation services Implement OAuth 2.0 and OIDC integrations with identity providers Work with JSON Web Tokens (JWTs), including issuance, validation, signing and key management Contribute to CI/CD pipelines and trunk-based...
Outside Spy
Sep 23, 2026
6 Months or more
Senior Java Developer (Back Office/Settlements/Post-Trade) - Outside IR35 - Hybrid in Central London at Hunter Bond, London, 12 Months, to 700 per day (Outside IR35)
£600 - £700 per day
Outside Spy London, UK
Senior Java Developer - Outside IR35 - Up to £700 per day We have partnered with a leader in the financial services sector who is looking for experienced Senior Java Engineers to join their Settlements team . This is a hands-on engineering role focused on developing and enhancing software supporting complex post-trade and settlement workflows . you'll work as part of an experienced engineering team, contributing to both new and existing systems within a fast-moving financial markets environment. The Role Develop and maintain Server Side Java/JVM applications supporting settlement and post-trade processes. Build robust, scalable services using Spring and Spring Boot . Work across greenfield and brownfield development projects. Collaborate with engineers and business stakeholders to understand requirements and deliver effective solutions. Contribute to technical design, development, testing and production delivery. Work with Kubernetes, event-driven...
Outside Spy
Sep 22, 2026
Duration not stated
Blue Yonder WMS Developer - £650 per day - Outside IR35 at Exalto Consulting, London Area, ££650 per day
£650 per day
Outside Spy London Area, United Kingdom
My client, a Global Supply Chain organisation are looking to recruit an experienced Blue Yonder WMS Developer for an initial 6 month contract to start ASAP.   Key Responsibilities: Develop, configure, and deploy Blue Yonder WMS customisations and integrations in line with business requirements and best practices. Code quality, documentation, and solution design. Perform enhancements, upgrades, and system configuration within the Blue Yonder MOCA architecture. Design and implement WMS reports, interfaces, and data extracts using SQL and related tools. Conduct thorough unit testing to ensure solution quality and performance. Participate in system upgrades, patches, and version migrations, ensuring minimal disruption to business operations. Produce and maintain comprehensive technical documentation, including functional specifications, configuration records, and operational procedures. Provide second and third-line support for Blue Yonder WMS...
Outside Spy
Sep 21, 2026
6 Months or more
Blue Yonder WMS Developer/Architect - Outside IR35 - Hybrid - £650 p at Exalto Consulting, London, 6 Months, £650 per day
£650 per day
Outside Spy London, UK
My client, a Global Supply Chain organisation are looking to recruit an experienced Blue Yonder WMS Developer for an intial 6 month contract to start ASAP. Key Responsibilities: Develop, configure, and deploy Blue Yonder WMS customisations and integrations in line with business requirements and best practices. Code quality, documentation, and solution design. Perform enhancements, upgrades, and system configuration within the Blue Yonder MOCA architecture. Design and implement WMS reports, interfaces, and data extracts using SQL and related tools. Conduct thorough unit testing to ensure solution quality and performance. Participate in system upgrades, patches, and version migrations, ensuring minimal disruption to business operations. Produce and maintain comprehensive technical documentation, including functional specifications, configuration records, and operational procedures. Provide second and third-line support for Blue Yonder WMS incidents and change...
Outside Spy
Sep 21, 2026
Duration not stated
C# Developer/£750/day | Outside IR35 | 12 month+ | Largely Remote/London at CipherTek Recruitment, ec2a, £600-£775 per day
£600 - £775 per day
Outside Spy Remote (ec2a, UK)
Senior C# Developer - Investment Banking £750/day | Outside IR35 | 12-month rolling contract | Largely Remote If you're a strong C# engineer with genuine Event Sourcing experience and interested in a long term banking project, get in touch I'm working with a leading investment bank looking for a strong Senior C# Developer to join a long-term project building and enhancing a large-scale Structured Notes platform. This is a hands-on engineering role with approximately 80% Back End C#/20% frontend, working on complex, distributed systems. The role: You'll be working across a modern .NET platform, designing and developing scalable Back End services while contributing to the Angular Front End where required. The environment involves large-scale distributed systems, asynchronous processing, Multithreading and event-driven architecture. Core technical requirements: Excellent C#/.NET development experience Strong .NET 8 knowledge Previous commercial Event...
Outside Spy
Sep 18, 2026
6 Months or more
Senior DevSecOps Engineer at Sanderson Recruitment Plc, London, 6 Months, £600-£650 per day
£600 - £650 per day
Outside Spy London, UK
Senior DevSecOps Engineer AWS | EKS | Platform Security | Financial Services ?? Location: London/Hybrid ?? Day Rate: Up to £650 (OUTSIDE IR35) ?? Contract: Initial 6 Months We're supporting a major financial services organisation delivering a next-generation cloud platform that will underpin multiple strategic programmes and engineering teams. As a result, we're looking for a hands-on DevSecOps Engineer to join the platform security function and help build the guardrails, controls and automation that allow product and engineering teams to scale securely by default. This is an engineering-first role focused on AWS, Kubernetes, CI/CD security and platform protection. You'll work alongside Platform Engineering, Developer Platform and Security Architecture teams to ensure security is Embedded into the platform rather than bolted on afterwards. What You'll Be Doing Engineering and maintaining security controls across a multi-tenant AWS platform Implementing and...
Outside Spy
Sep 18, 2026
Duration not stated
Senior DevSecOps Engineer at Sanderson , London, £600-£650 per day
£600 - £650 per day
Outside Spy London, UK
Senior DevSecOps Engineer AWS | EKS | Platform Security | Financial Services Location: London/ Hybrid Day Rate: Up to £650 (OUTSIDE IR35) Contract: Initial 6 Months We 're supporting a major financial services organisation delivering a next-generation cloud platform that will underpin multiple strategic programmes and engineering teams. As a result, we 're looking for a hands-on DevSecOps Engineer to join the platform security function and help build the guardrails, controls and automation that allow product and engineering teams to scale securely by default. This is an engineering-first role focused on AWS, Kubernetes, CI/CD security and platform protection. You 'll work alongside Platform Engineering, Developer Platform and Security Architecture teams to ensure security is embedded into the platform rather than bolted on afterwards. What You 'll Be Doing Engineering and maintaining security controls across a multi-tenant AWS...
Outside Spy
Sep 17, 2026
6 Months or more
Senior Java Developer - Outside IR35 - Hybrid in Central London at Hunter Bond, London, 12 Months, to 700 per day (Outside IR35)
£600 - £700 per day
Outside Spy London, UK
Senior Java Developer - Outside IR35 - Up to £700 per day A leading organisation in the financial services sector is looking for experienced Senior Java Developers to join its engineering teams, working on bespoke software solutions across complex financial markets environments. This is a hands-on development role, with a strong focus on server-side Java/JVM , working across greenfield and brownfield projects. You'll need to be comfortable working with ambiguity, taking ownership and delivering solutions in a fast-moving environment. The Role Develop server-side Java/JVM applications across financial services and trading environments. Work across the full software development lifecycle, from technical design through to implementation and production. Work with Linux, Kubernetes, event-driven architecture and cloud infrastructure . Collaborate with engineering teams and stakeholders to solve complex technical problems. Take ownership of issues and drive them...
Outside Spy
Sep 23, 2026
Duration not stated
Senior Backend AI Engineer at SR2 - Socially Responsible Recruitment, London, £600-£625 per day
£600 - £625 per day
Outside Spy London, UK
Senior Backend AI Engineer - Contract £600 - £625 per day Outside IR35 Fully Remote - UK We're looking for an experienced Senior Backend AI Engineer to join a technical team building production-grade software with AI capabilities. This is primarily a backend engineering role , rather than a pure AI/ML position. You'll be responsible for designing and delivering reliable Python services while integrating modern LLM capabilities where appropriate. You'll have a high level of technical ownership and will be comfortable reviewing code, making engineering decisions and taking features through to production. What We're Looking For Strong commercial Python engineering experience FastAPI and asynchronous Python Experience building and supporting production APIs/services Strong approach to testing, typed code and maintainability Experience owning code quality and conducting senior-level code reviews AWS or similar cloud experience...
Outside Spy
Sep 22, 2026
Duration not stated
Senior Applications Project Manager at TXP, United Kingdom, £500 to £600 per Day
£500 - £600 per day
Outside Spy United Kingdom
Senior level Project Manager To £600.00 Per Day - Outside IR35 3 months initially Location: Role can be performed fully remote (Candidates must be UK based) Our client is looking for highly experienced, UK based Project Manager's from a software/applications background, who have operated at a senior level and can ask the right questions, challenge project teams and have tough conversations. The successful candidates will have worked with IT Developers on software projects and managed the full project life cycle. CA Gen experience would be highly beneficial for this project. The Project is in Australia however the resource will be UK based and work UK hours with some potential cross over (beginning and end of the day), so some flexibility is needed. If your profile demonstrates strong and recent experience in the above areas - please submit your application to Jackie Dean at TXP for consideration.
Outside Spy
Sep 22, 2026
Duration not stated
Senior Applications Project Manager at TXP, England, £500-£600 per day
£500 - £600 per day
Outside Spy England, UK
Senior level Project Manager To £600.00 Per Day - Outside IR35 3 months initially Location: Role can be performed fully remote (Candidates must be UK based) Our client is looking for highly experienced, UK based Project Manager's from a software/applications background, who have operated at a senior level and can ask the right questions, challenge project teams and have tough conversations. The successful candidates will have worked with IT Developers on software projects and managed the full project life cycle. CA Gen experience would be highly beneficial for this project. The Project is in Australia however the resource will be UK based and work UK hours with some potential cross over (beginning and end of the day), so some flexibility is needed. If your profile demonstrates strong and recent experience in the above areas - please submit your application to Jackie Dean at TXP for consideration.
Outside Spy
Sep 16, 2026
Duration not stated
Technical AI Consultant, AI Integration, C#, £600 day rate, Outside IR35, Reading, COR7630 at Corriculo Ltd, Reading, £550-£600 per day
£550 - £600 per day
Outside Spy Reading, UK
Technical AI Consultant, AI Integration, C#, £600 day rate, Outside IR35, Reading, COR7630 We 're looking for an experienced Technical AI Consultant to join a long-term contract with an initial 3-month term and a strong likelihood of extension up to 18 months. This role is based in Reading, with three days per week onsite, and offers a day rate of up to £600, outside IR35. As a Technical AI Consultant, you 'll play a key role in driving the adoption of AI within a software engineering team. Working closely with developers, you 'll help with the implementation and integration AI-powered tools and agentic technologies into the development lifecycle, improving productivity and modernising engineering practices. What 's required of the Technical AI Consultant? Strong commercial experience developing software with C# and .NET Experience leading or supporting the adoption, integration, and implementation of AI within a software development team...
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