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11 system engineer jobs found

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system engineer £300 - £400 Greater London
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London  (9) Hybrid  (2) Remote  (1) Uxbridge  (1)
Outside Spy
Apr 20, 2026
Duration not stated
Contract .Net Developer – Insurance claims system at hireful, London, £350 to £400 per Day
£350 - £400 per day
Outside Spy London, UK
Join this leading Insurance company as an Interim Back-End .NET Developer and play a key role in transforming a modern, high-impact claims automation platform. This is an exciting opportunity to work at the heart of a major claims’ integration programme, designing and building scalable APIs and microservices using the latest .NET technologies, including the likes of .NET Core, .NET 5+. Working within a collaborative and fast-paced delivery environment, you will develop robust backend solutions that integrate seamlessly across multiple systems, You’ll take ownership of designing, developing, and unit testing high-quality code, ensuring solutions are secure, performant, and aligned with best practice coding standards. This role is primarily backend-focused, with some opportunity to contribute minor front-end enhancements where required. Role: Senior .Net Backend Developer, Senior .Net Developer, .Net Core Developer, Software Engineer, Contract .Net Developer, Lead .Net Developer...
Outside Spy
Apr 20, 2026
Duration not stated
Contract .Net Developer – Insurance claims system at Hireful, Central London, £400 per day
£400 per day
Outside Spy Central London, London WC2N 5DU, UK
Join this leading Insurance company as an Interim Back-End .NET Developer and play a key role in transforming a modern, high-impact claims automation platform. This is an exciting opportunity to work at the heart of a major claims’ integration programme, designing and building scalable APIs and microservices using the latest .NET technologies, including the likes of .NET Core, .NET 5+. Working within a collaborative and fast-paced delivery environment, you will develop robust backend solutions that integrate seamlessly across multiple systems, You’ll take ownership of designing, developing, and unit testing high-quality code, ensuring solutions are secure, performant, and aligned with best practice coding standards. This role is primarily backend-focused, with some opportunity to contribute minor front-end enhancements where required. Role: Senior .Net Backend Developer, Senior .Net Developer, .Net Core Developer, Software Engineer, Contract .Net Developer, Lead .Net Developer...
Outside Spy
Apr 16, 2026
Duration not stated
Data Migration Engineer/Analyst at Tenth Revolution Group, City of London, £400-£450 per day
£400 - £450 per day
Outside Spy City of London, UK
Data Migration Analyst/Engineer Contract | 5 Months | £400-£450/day | Outside IR35 | Fully Remote (Occasional London Meetings) We are looking for an experienced Data Migration Analyst/Engineer to support the rebuild of a data warehouse for a wealth management firm undergoing a complex system and data migration programme. Working alongside the Lead Data Engineer and in parallel with a separate application migration team, this role is focused on ensuring the newly built data warehouse faithfully reproduces existing business outputs through robust source-to-target mapping, migration validation, and transformation analysis. This is primarily a lift-and-shift migration , not a greenfield redesign, and requires someone who can operate independently, identify gaps, and translate complex Legacy logic into a modern data warehouse environment. Key Responsibilities Take ownership of data migration and source-to-target mapping activities supporting the rebuilt data warehouse....
Outside Spy
Apr 15, 2026
Duration not stated
Lead Technical Specialist RF Engineer at ECS Resource Group Ltd, Greater London, £400 to £450 per Day
£400 - £450 per day
Outside Spy Greater London, UK
OUTSIDE IR35 CONTRACT Duration - 9-12 Months ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a Lead Technical Specialist RF Engineer on a contract basis. Key Responsibilities Act as a technical advisor throughout the sales cycle, supporting customer engagement and delivering solution designs, bills of materials, and technical documentation Partner with business leaders and sales teams to support strategy execution through technical guidance, coaching and mentorship Collaborate with internal technical resource teams to efficiently deliver project outcomes and improve turnaround times Maintain current knowledge of system architectures and emerging technologies to provide relevant, customer-focused solutions Build and manage relationships with technology partners and vendors to support solution development and market positioning Deliver technical presentations, training sessions, and...
Outside Spy
Apr 15, 2026
Duration not stated
Lead Technical Specialist RF Engineer at ECS, Uxbridge, London, £Contract Rate
Outside Spy Uxbridge, UK
OUTSIDE IR35 CONTRACT Duration - 9-12 Months ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a Lead Technical Specialist RF Engineer on a contract basis. Key Responsibilities Act as a technical advisor throughout the sales cycle, supporting customer engagement and delivering solution designs, bills of materials, and technical documentation Partner with business leaders and sales teams to support strategy execution through technical guidance, coaching and mentorship Collaborate with internal technical resource teams to efficiently deliver project outcomes and improve turnaround times Maintain current knowledge of system architectures and emerging technologies to provide relevant, customer-focused solutions Build and manage relationships with technology partners and vendors to support solution development and market positioning Deliver technical presentations, training sessions, and...
Outside Spy
Apr 13, 2026
Duration not stated
.NET Developer at Noir, London Area, £400 per day
£400 per day
Outside Spy London Area, United Kingdom
.NET Developer, CMS, Umbraco – Remote (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a leading digital agency powerhouse, delivering transformative online experiences for some of the most recognised brands across Europe. Renowned for blending creativity with cutting-edge technology, they have built an unrivalled reputation for crafting innovative, scalable .NET-driven digital platforms that engage millions of users daily. As part of their continued growth and a surge in exciting Greenfield digital transformation projects, they are looking to recruit a talented .NET Developer to join their award-winning development team. This is an opportunity to work in a fast-paced agency environment where no two projects are the same—ranging from enterprise CMS-driven websites to complex, high-traffic digital ecosystems. Working in close...
Outside Spy
Apr 17, 2026
6 Months or more
Senior Software Engineer at Formula Recruitment, London, 6 Months, to £475 per day Outside IR35
£375 - £475 per day
Outside Spy London, UK
Contract role: Senior Software Engineer: Up to £475 per day Outside IR35: 6 months rolling: Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you'll tackle complex technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you'll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS or Azure Key information: Up to £475 per day Outside IR35 6 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role: Senior Software...
Outside Spy
Apr 17, 2026
Duration not stated
AI Engineer - Outside IR35 - Remote at Tenth Revolution Group, City of London, £350-£400 per day
£350 - £400 per day
Outside Spy Remote (City of London, UK)
AI Engineer - Outside IR35 - Remote Overview We're looking for an experienced AI Engineer to design, build, and scale production-grade agentic systems. This role focuses on developing intelligent, tool-using agents that operate reliably in real-world environments-not just prototypes. You'll work at the intersection of LLMs, orchestration frameworks, and modern Back End systems to deliver robust AI-powered applications. Key Responsibilities Design and build AI-powered applications using agentic workflows Develop and orchestrate multi-agent systems with clear communication and task delegation patterns Implement structured output handling and tool-use integrations Build and maintain scalable Back End services using Node.js and REST APIs Ship production-ready agents with reliability, monitoring, and performance in mind Integrate agents with external tools, APIs, and MCP Servers Establish observability for AI systems, including tracing, cost monitoring, and failure...
Outside Spy
Apr 16, 2026
6 Months or more
GCP Data Engineer at IRIT Consultancy Services, London/Remote, £250-£320 per day Outside IR35
£250 - £320 per day
Outside Spy Hybrid (London, UK)
*Position:* GCP Data Engineer *Location:* London, UK & Chester, UK *Client:* Bank/Financial services (Client details will be shared when the interview is scheduled) *Mode:* Hybrid (2-3 Days a week onsite) *Experience:* Over all 6+ Years & 3+ Years on GCP *Job type:* Contract, 6 Months & Extendable *Notice period:* Immediate to 1 month will be considered (Outside IR35) *Visa:* ILR/Citzen *Job description:* We are looking for a Senior GCP Data Engineer to build and manage scalable data platforms on Google Cloud. The ideal candidate will have strong experience in designing batch and real-time data pipelines, working with large-scale datasets, and delivering robust data solutions for enterprise applications. *Key Responsibilities* Design and build data pipelines (batch & streaming) on GCP Work with BigQuery, Dataflow, Cloud Storage, Spanner Develop real-time data streaming solutions (Kafka / Beam) Implement Infrastructure...
Outside Spy
Apr 16, 2026
6 Months or more
GCP Data Engineer at IRIT Consultancy Services, London/Hybrid, £250 - £320 per day
£250 - £320 per day
Outside Spy Hybrid (London, UK)
Full job description *Position:* GCP Data Engineer *Location:* London, UK & Chester, UK *Client:* Bank/Financial services (Client details will be shared when the interview is scheduled) *Mode:* Hybrid (2-3 Days a week onsite) *Experience:* Over all 6+ Years & 3+ Years on GCP *Job type:* Contract, 6 Months & Extendable *Notice period:* Immediate to 1 month will be considered (Outside IR35) *Visa:* ILR/Citzen *Job description:* We are looking for a Senior GCP Data Engineer to build and manage scalable data platforms on Google Cloud. The ideal candidate will have strong experience in designing batch and real-time data pipelines, working with large-scale datasets, and delivering robust data solutions for enterprise applications. *Key Responsibilities* Design and build data pipelines (batch & streaming) on GCP Work with BigQuery, Dataflow, Cloud Storage, Spanner Develop real-time data streaming solutions (Kafka /...
Outside Spy
Apr 13, 2026
6 Months or more
Senior Software Engineer at Formula Recruitment, London, 6 Months, to £475 per day Outside IR35
£375 - £475 per day
Outside Spy London, UK
Contract role: Senior Software Engineer: Up to £475 per day Outside IR35: 6 months rolling: Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you'll tackle complex technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you'll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS or Azure Key information: Up to £475 per day Outside IR35 6 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role: Senior Software...
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