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13 system engineer jobs found in London

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London system engineer £400 - £500
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Greater London  (13) Remote  (2)
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 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 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 07, 2026
Duration not stated
.NET Developer, CMS, Sitecore, Optimizely at Noir, London/Remote, £350 - £400 a day
£350 - £400 per day
Outside Spy Remote (London, UK)
Full job description .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...
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)
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...
Outside Spy
Apr 13, 2026
up to 6 Months
Security Engineer at Tria Recruitment, London, 3 Months, £500-£550 per day
£500 - £550 per day
Outside Spy London, UK
Security Engineer - Hybrid London - £500 outside IR35 We are working with a fast-growing, premium retail company to find a hands-on Security Engineer who can design, deploy, and integrate security solutions across cloud, infrastructure, and data platforms. This is an engineering-focused role, not a policy or compliance position. You will play a critical role in protecting customer, payment, and operational data across an omnichannel environment, including e-commerce, mobile, marketplaces, and back-office systems. Key responsibilities include: Implement and manage security controls across cloud, network, infrastructure, and data systems Secure end-to-end data pipelines and analytics platforms Collaborate with security, IT, and engineering teams to embed security into architecture and deployment pipelines Apply encryption, access control, and monitoring across all environments Contribute to threat detection, incident response, and continuous improvement Skills &...
Outside Spy
Apr 10, 2026
up to 6 Months
Data Platform Engineer (GCP, Terraform, Airflow) at Primus Connect Ltd, London, 3 Months, £500-£575 per day
£500 - £575 per day
Outside Spy London, UK
Data Platform Engineer (GCP, PySpark, Airflow) - Contract Rate : £550 - £575 per day Outside IR35 Location : Remote (UK) Travel : London once per month (preferred) Duration : 3 months (initial) Start : ASAP The Role We're hiring a Data Platform Engineer (GCP, PySpark, Airflow) to support a modern data platform/Lakehouse environment . This is a hands-on engineering role focused on building and optimising data pipelines , while also contributing to the underlying platform and infrastructure. You'll work closely with the data engineering team, delivering production-grade pipelines and ensuring systems are reliable, scalable, and performant. Key Responsibilities Design and build end-to-end data pipelines (PySpark/SQL) Develop and manage workflows using Airflow (DAGs, scheduling, orchestration) Work with BigQuery for large-scale data processing and analytics Monitor, debug, and optimise pipelines for performance and...
Outside Spy
Apr 07, 2026
Duration not stated
Azure Platform Architect - Outside IR35 - Hybrid at Tenth Revolution Group, City of London, £500-£550 per day
£500 - £550 per day
Outside Spy City of London, UK
Azure Platform Architect - Outside IR35 - Hybrid Overview We are seeking an experienced AI/Data Engineer to design and build a scalable platform that automates the extraction, reconciliation, and reporting of investment data from private fund documentation. This role will focus on transforming large volumes of unstructured data into structured, compliant datasets and delivering actionable insights to stakeholders. Key Responsibilities 1. Document Extraction & Ingestion Develop and implement AI-driven solutions to extract key data from complex, unstructured private fund documents (eg, PDFs, reports, statements) Design ingestion pipelines to process documentation across ~200 funds efficiently and reliably Apply prompt engineering techniques and Azure AI tooling to improve extraction accuracy and consistency Ensure data quality, validation, and traceability throughout the ingestion process 2. Data Reconciliation & Compliance Alignment Reconcile...
Outside Spy
Apr 01, 2026
Duration not stated
Senior Software/Data Engineer (Contract) at Softwire, London Area, £500-£585 per day
£500 - £585 per day
Outside Spy London Area, United Kingdom
Senior Software Developer / Data Engineer - (Contract Outside IR35) In brief We’re looking for well-rounded software developers with experience in data engineering, with a proven ability to tackle complex data challenges, make an excellent impression on clients, and have a high impact on the output of your entire team. We provide a supportive environment with a strong focus on individual career progression, where you will have both the mentorship and project opportunities you need to develop your technical skills. You’ll work in a team alongside other talented developers and data engineers, supported by a Technical Lead. Projects span a range of sizes and multiple sectors and technologies. The role Experience and qualifications You have 4+ years’ experience and a breadth & depth of technical knowledge & expertise, particularly in data engineering, and can solve technical challenges across front-end, back-end, and infrastructure. You have...
Outside Spy
Mar 27, 2026
Duration not stated
Artificial Intelligence Engineer at LT Harper Recruitment Group, London Area, £500 per day
£500 per day
Outside Spy London Area, United Kingdom
AI Engineer (Contract) – £500/day Outside IR35 📍 Canary Wharf, London (3 days onsite) 🇬🇧 UK-based applicants only We’re looking for experienced AI Engineers who think holistically, automate relentlessly, and know how to turn modern AI capabilities into production-grade, high-impact applications . Our AI organisation is building real-world AI products that deliver business value at speed. This role is ideal for seasoned engineers who combine strong software engineering fundamentals with a pragmatic, hands-on approach to AI tooling and infrastructure. What you’ll be doing Designing, building, and maintaining production-grade AI applications using modern engineering practices (CI/CD, testing, observability, cloud-native design). Developing reusable AI platforms and tools (e.g. conversational bots, AI-powered search, unstructured data processing, GenAI solutions). Working in cross-functional, embedded teams with business stakeholders to rapidly deliver...
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