34 system engineer jobs found

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy. This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture. You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale. This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast. The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day |...

AI Product Developer | £400 - £500 We're working with a high-velocity enterprise AI innovation foundry on this exciting opportunity. They are at the forefront of engineering intelligent ecosystems that transform how modern enterprises operate through cutting-edge Generative AI. This is a high-octane role for a GenAI specialist to build production-ready Copilots and LLM applications from the ground up. You will leverage Azure AI, RAG architectures, and advanced vector databases to deploy scalable, secure-by-design AI agents that solve complex business challenges at scale. The Role Architect and deploy sophisticated LLM-powered applications and AI agents using Azure OpenAI and LangChain frameworks. Engineer high-performance RAG pipelines, optimizing embeddings and vector search capabilities for maximum accuracy. Build and integrate custom Copilot solutions and prompt libraries into existing enterprise system architectures via secure APIs. Establish robust AI...

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 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 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...

SCADA Engineer - 6 months, Wokingham (Onsite) - Outside IR35 In this role, you will support the implementation, validation, and testing of SCADA/EMS systems within a power/utility environment. You will work closely with engineers, system integrators, and stakeholders to ensure system functionality, integration, and performance meet operational requirements. The role focuses on system testing, configuration, and integration across SCADA platforms , with exposure to GE PowerOn Reliance where relevant. Key Responsibilities Support the implementation and validation of SCADA/EMS systems across functional and integration layers. Design and execute test cases covering system functionality, interfaces, and performance. Work with stakeholders to understand system requirements, workflows, and operational needs. Collaborate with Agile teams (POs, engineers, testers) to define user stories and acceptance criteria. Monitor and report testing progress using tools such as...

Contract Software Test Engineer Location: Basingstoke Pay: £375 (Outside IR35) Contract: 9 Months Role Overview We’re seeking a seasoned Software Test Engineer to drive verification and validation activities. This role centres on HIL test development, test execution, automation, and ensuring software meets performance, safety, and quality standards. Key Responsibilities Create clear, structured test cases and specifications from system and software requirements Develop and maintain HIL test setups using MATLAB/Simulink Run automated and manual tests to verify embedded software functionality Interpret test outputs, compile reports, and support fault investigation Review and refine software requirements from a testing and validation viewpoint Skills & Experience Strong background in software or systems testing within automotive environments Practical experience with HIL platforms (dSPACE ideal) Solid understanding of...

AI Product Developer | £400 - £500 We're working with a high-velocity enterprise AI innovation foundry on this exciting opportunity. They are at the forefront of engineering intelligent ecosystems that transform how modern enterprises operate through cutting-edge Generative AI. This is a high-octane role for a GenAI specialist to build production-ready Copilots and LLM applications from the ground up. You will leverage Azure AI, RAG architectures, and advanced vector databases to deploy scalable, secure-by-design AI agents that solve complex business challenges at scale. The Role Architect and deploy sophisticated LLM-powered applications and AI agents using Azure OpenAI and LangChain frameworks. Engineer high-performance RAG pipelines, optimizing embeddings and vector search capabilities for maximum accuracy. Build and integrate custom Copilot solutions and prompt libraries into existing enterprise system architectures via secure APIs. Establish robust AI...

.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...

AI Product Developer | £400 - £500 We're working with a high-velocity enterprise AI innovation foundry on this exciting opportunity. They are at the forefront of engineering intelligent ecosystems that transform how modern enterprises operate through cutting-edge Generative AI. This is a high-octane role for a GenAI specialist to build production-ready Copilots and LLM applications from the ground up. You will leverage Azure AI, RAG architectures, and advanced vector databases to deploy scalable, secure-by-design AI agents that solve complex business challenges at scale. The Role Architect and deploy sophisticated LLM-powered applications and AI agents using Azure OpenAI and LangChain frameworks. Engineer high-performance RAG pipelines, optimizing embeddings and vector search capabilities for maximum accuracy. Build and integrate custom Copilot solutions and prompt libraries into existing enterprise system architectures via secure APIs. Establish robust AI...

Job Title:  Windows & Linux Infrastructure Engineer Clearance Type:  Active SC Clearance Location:  Hybrid - Cirencester, Gloucestershire (mostly remote & expenses for all site travel) Day Rate:  £340 per day - payable to Limited Company / Outside IR35 Duration:  12 months initially Pay Frequency:  Weekly Start Date:  ASAP Overview We are looking for experienced SC Cleared Infrastructure Engineers / 3rd Line Server Engineers to support a large-scale Windows & Linux server migration. This is a hands-on Infrastructure Engineer role focused on server configuration, validating automation, troubleshooting issues, and supporting the new environment post-migration. Key Responsibilities Support migration of Windows & Linux servers to a new environment Validate automated migrations (Quest) and resolve any failures manually Migrate core services including Active Directory, DNS, file systems, and storage...

Job Title:  Windows & Linux Infrastructure Engineer Clearance Type:  Active SC Clearance Location:  Hybrid - Cirencester, Gloucestershire (mostly remote & expenses for all site travel) Day Rate:  £340 per day - payable to Limited Company / Outside IR35 Duration:  12 months initially Pay Frequency:  Weekly Start Date:  ASAP Overview We are looking for experienced SC Cleared Infrastructure Engineers / 3rd Line Server Engineers to support a large-scale Windows & Linux server migration. This is a hands-on Infrastructure Engineer role focused on server configuration, validating automation, troubleshooting issues, and supporting the new environment post-migration. Key Responsibilities Support migration of Windows & Linux servers to a new environment Validate automated migrations (Quest) and resolve any failures manually Migrate core services including Active Directory, DNS, file systems, and storage...

Job Title: Windows & Linux Infrastructure Engineer Clearance Type: Active SC Clearance Location: Hybrid - Cirencester, Gloucestershire (mostly remote & expenses for all site travel) Day Rate: £340 per day - payable to Limited Company/Outside IR35 Duration: 12 months initially Pay Frequency: Weekly Start Date: ASAP  Overview We are looking for experienced SC Cleared Infrastructure Engineers/3rd Line Server Engineers to support a large-scale Windows & Linux server migration. This is a hands-on Infrastructure Engineer role focused on server configuration, validating automation, troubleshooting issues, and supporting the new environment post-migration.  Key Responsibilities Support migration of Windows & Linux Servers to a new environment Validate automated migrations (Quest) and resolve any failures manually Migrate core services including Active Directory, DNS, file systems, and storage Troubleshoot and resolve OS-level and...

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...

PLEASE EMAIL YOUR CV ONLY. DO NOT CALL. End To End QA Engineer - UK Based essential Remote working Outside IR35 Role and responsibilities: Test pre-defined processes/journeys end to end: D365 Bespoke self serve portal (D365 based) Integrations to 3rd party systems including Umbraco Website Security Basic Validation of: Performance Error Handling Monitoring Experience using Postman and Selenium required Minimum of 5 years End to End QA Engineer experience required Testing of enterprise CRM systems