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16 system engineer jobs found

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system engineer £400 - £500 Greater London
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London  (14) Remote  (2) Uxbridge  (1)
Outside Spy
Apr 21, 2026
up to 6 Months
Operational Technology Architect - London - Outside IR35 at TrinIT Group, London, 3 Months, £500 per day
£500 per day
Outside Spy London, UK
TrinIT Talent are looking for a OT Architect to come on board for a 3 month contract based in Location. This role falls Outside of Scope of IR35 and is paying £500 per day. Job Title: OT Architect Role Summary The OT Architect is responsible for designing, governing, and enabling seamless integration between Operational Technology (OT) and Information Technology (IT) environments. The role ensures secure, scalable, and standardized architectures that support manufacturing, industrial operations, data platforms, and enterprise systems while adhering to cybersecurity and operational reliability requirements. Key Responsibilities OT-IT Architecture & Standardization Define OT-IT integration architecture, standards, and design blueprints Align OT systems with enterprise IT, cloud, and security architectures Apply Purdue Model and zone-based design principles Ensure compliance with ISA/IEC 62443 and enterprise security policies Planning, Assessment...
Outside Spy
Apr 21, 2026
6 Months or more
Senior Data Engineer at Gravitas Recruitment Group Ltd, City of London, 6 Months, £500-£600 per day
£500 - £600 per day
Outside Spy City of London, UK
Contract Data Engineer Location: London (Hybrid) Contract: 6 months+ (likely extension) IR35: Outside Start: ASAP Overview Data Engineer required to support a finance transformation programme within a digital financial services business. Focus on modernising financial data systems and replacing manual processes with scalable, cloud-based solutions. Responsibilities Work closely with finance stakeholders Design and deliver data integrations and data products Bring General Ledger into the central reporting repository Integrate a Treasury Management System into central data and automate accounting postings Build curated finance data marts for self-service reporting Enable near Real Time reporting capability Operate as a proactive, autonomous contributor within a Scrum team Support experimentation with agentic AI tools (eg Claude, ChatGPT) for discovery and requirement definition Requirements Must-Have: Strong finance domain knowledge Extensive AWS data...
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 20, 2026
Duration not stated
.NET Developer, CMS, Sitecore, Optimizely at Noir, London, £350-£400 per day
£350 - £400 per day
Outside Spy London, UK
.NET Developer, CMS, Sitecore, Optimizely, 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...
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 16, 2026
Duration not stated
Data Migration Engineer - Outside IR35 - Remote at Tenth Revolution Group, City of London, £450-£500 per day
£450 - £500 per day
Outside Spy Remote (City of London, UK)
Data Migration Engineer - Outside IR35 - Remote Overview We are seeking an experienced Data Migration Analyst/Engineer to support a major data warehouse rebuild for a wealth management firm undergoing a large-scale system and data migration programme. Working closely with the Lead Data Engineer, this role will play a critical part in ensuring the new data warehouse accurately replicates existing outputs, while identifying and resolving any data gaps introduced during migration. This is a hands-on role requiring strong analytical capability, deep SQL expertise, and experience working in complex, regulated data environments. Key Responsibilities Perform source-to-target mapping , documenting field-level lineage across systems and transformation layers Analyse and interpret complex Legacy SQL stored procedures (including multi-CTE logic, temp tables, and parameterised pipelines) Support data migration validation , ensuring accuracy and completeness of migrated datasets...
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 14, 2026
Duration not stated
Azure DevOps Engineer at Scrumconnect Consulting, London EC1A, £450 per day
£450 per day
Outside Spy London, UK
Full job description Job Information Date Opened 13/04/2026 Job Type Contract Work Experience 5+ years Industry Government & Public Sector Salary 450 Outside IR35 City London Province Greater London Country United Kingdom Postal Code EC1A About Scrumconnect Consulting:   Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter Role Overview: We're seeking a Azure DevOps Engineer to join our dynamic team. This role requires a blend of technical expertise, leadership, and a passion for cloud technologies. You'll be...
Outside Spy
Apr 23, 2026
6 Months or more
Senior Data Engineer - outside IR35 - 6 months £400 per day - 2 days London at TrinIT Group, London, 6 Months, £400 per day
£400 per day
Outside Spy London, UK
TrinIT Talent are looking for a Senior Data Engineer for an Azure native data team the role will be 2 days a week onsite in London working outside of IR35 on a 6 month contract. Microsoft Fabric, Azure Data Lake, Azure Synapse, Power BI Data Integration and ETL designing, building and implementing data pipelines, data models and analytic solutions in Microsoft Fabric. migration from azure synapse to Fabric (using Medallion architecture approach) whilst maintaining existing SQL server, Azure data lake and Azure Synapse analytics environment in production. integrate multiple external 3rd party systems and data sources as well as internal systems into Fabric Data Platform. Integrating using APIs is necessary. ETL development - skilled in designing, building and optimising ETL workflows with best practices for data transformation, validation and loading. Automating upstream and downstream workflows using Power Automate and Power Apps. Data Analytics and Machine...
Outside Spy
Apr 22, 2026
6 Months or more
Senior Full Stack Developer at IntecSelect, Tower of London, 6 Months, £450-£600 per day
£450 - £600 per day
Outside Spy Tower of London, UK
Senior Full Stack Developer (Contract) Outside IR35 | Remote | Up to £600/day Overview We're partnering with a specialist software consultancy delivering business-critical platforms across financial services and pensions. They're looking for a Senior Full Stack Developer who enjoys proper engineering - clean architecture, ownership of solutions, and working alongside experienced senior engineers and QA specialists. This is a hands-on delivery role (no line management, no ticket-factory environments) with meaningful technical influence across the full stack. What you'll be doing Designing and building end-to-end full-stack solutionsin a modern cloud environment Backend development using Python and C# Frontend development with TypeScript and React Working within Azure (Functions, Azure SQL, Service Bus, ADF) Contributing to architecture discussions, technical design, and code reviews Applying pragmatic AI-assisted/agentic engineering practices to improve delivery...
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 15, 2026
6 Months or more
AI Enigneer- 12 month contract at Opus Recruitment Solutions Ltd, London, 12 Months, £500-£600 per day
£500 - £600 per day
Outside Spy London, UK
Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS/Azure/GCP) Docker, Kubernetes CI/CD, observability, testing for AI systems Experience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale up environment A product-focused mindset - you enjoy owning features end to end Curiosity, creativity, and a genuine passion for AI Understanding of start/scale up environments Details 12 month contract Fully remote (London office optional) £500-600p/d (outside IR35)
Outside Spy
Apr 14, 2026
Duration not stated
AI Enigneer- 12 month contract at Opus Recruitment Solutions, London, £500 to £600 per Day
£500 - £600 per day
Outside Spy London, UK
Skills Python, TypeScript LLM frameworks (LangChain, LlamaIndex, OpenAI tools, Semantic Kernel) Vector databases (Pinecone, Weaviate, Chroma) Cloud (AWS / Azure / GCP) Docker, Kubernetes CI/CD, observability, testing for AI systems Experience Strong experience building LLM applications, RAG systems, or AI agents Understanding of prompt engineering, tool-calling, and orchestration frameworks Ability to work autonomously in a scale‑up environment A product-focused mindset — you enjoy owning features end‑to‑end Curiosity, creativity, and a genuine passion for AI Understanding of start/ scale up environments Details 12 month contract  Fully remote (London office optional)  £500-600p/d (outside IR35)
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