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21 systems engineer jobs found

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systems engineer £500 - £600 Greater London
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London  (21) Remote  (2)
Outside Spy
Mar 13, 2026
Duration not stated
Senior Data Engineer - Contract - Outside IR35 at Oliver Bernard, London Area, £600 per day
£600 per day
Outside Spy London Area, United Kingdom
Senior Data Engineer - Contract - Outside IR35 3 days per week onsite, Central London £600 per day 6 months (extensions possible) FinTech | London We’re partnered with a fast-growing FinTech at the heart of Private Market Investments, looking to scale their Data function. What They’re Looking For Strong grounding in computer science fundamentals and data modelling Commercial experience with more than one programming language (Python, Scala, Java, C++) (and strong SQL skills) Experience with streaming and data processing (e.g. Kafka, Spark, Athena or similar) Hands-on experience with Azure Familiarity with data containerisation, ingestion, and orchestration Clear communicator who can explain technical decisions to non-technical stakeholders Why Join? Work on genuinely difficult engineering problems Exposure to large, complex systems in real production environments A culture built by engineers, for engineers 3 days per week onsite,...
Outside Spy
Mar 13, 2026
Duration not stated
SQL Data Engineer (SQL Server, Python, DBA) Remote at Talent Today, Remote- Some travel to London, £550-£600 per day
£550 - £600 per day
Outside Spy Remote (Remote- Some travel to London, UK)
'sQL Data Engineer (SQL Server, Python, DBA) Location: Remote- Some travel to London Contract: Contract Rate: £550-£600 Per Day- Outside IR35 We are currently looking for an experienced SQL Data Engineer to support the ongoing development and stability of a critical data platform. This role sits within an established technology team and focuses on BAU data engineering, database optimisation and ongoing data migration activity. The successful contractor will combine strong SQL development with hands on DBA capability, ensuring databases remain secure, performant and reliable while supporting continuous improvements to the wider data estate. This is an excellent opportunity for a pragmatic engineer who enjoys working on live production systems while helping evolve data architecture over time. Key Responsibilities Design, build and maintain SQL-based data solutions supporting business critical applications Develop and optimise stored procedures, queries...
Outside Spy
Mar 12, 2026
Duration not stated
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days at Owen Thomas | Pending B Corp™, London Area, £500-£600
£500 - £600 per day
Outside Spy London Area, United Kingdom
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...
Outside Spy
Mar 11, 2026
Duration not stated
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days at Owen Thomas | Pending B Corp™, London Area, £500-£600
£500 - £600 per day
Outside Spy London Area, United Kingdom
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...
Outside Spy
Mar 11, 2026
Duration not stated
Machine Learning Engineer at SR2 - Socially Responsible Recruitment, London, £575-£675 per day
£575 - £675 per day
Outside Spy London, UK
Machine Learning Engineer - Python/PyTorch - £575-£675/day - Outside IR35 - Remote (UK) Contract: 6 months (extension likely) Day Rate: £575-£675 per day IR35 Status: Outside IR35 Location: Remote (UK) Core Stack: Python, PyTorch/TensorFlow, AWS, Docker, Kubernetes The Opportunity We're working with a growing technology team looking for a Machine Learning Engineer to help design, build and deploy machine learning systems used in real-world applications. This role sits at the intersection of software engineering, data science and applied machine learning, with a focus on taking models from experimentation through to scalable production ML systems. You'll work closely with engineers, data specialists and product teams to develop ML capabilities that support new and existing products. We're also happy to speak with Data Scientists who have strong Python engineering experience and have deployed machine learning models into production environments. What You'll Be...
Outside Spy
Mar 10, 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...
Outside Spy
Mar 10, 2026
Duration not stated
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days at Owen Thomas | Pending B Corp™, London Area, £500-£600
£500 - £600 per day
Outside Spy London Area, United Kingdom
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...
Outside Spy
Mar 10, 2026
6 Months or more
Yardi Application Support Engineer, £500 per day outside IR35 at Bench IT Limited, London, 6 Months, £500 per day
£500 per day
Outside Spy London, UK
Yardi Application Support Engineer, £500 per day outside IR35 6 months rolling, London Bench IT require an experienced Application Support Engineer to Support the Yardi application. The successful engineer will be required to work 3 days per week in London and should have the skills and experience included below; Responsibilities Administer enterprise-wide Yardi configurations including user permissions, security groups, custom menus, deployment packages, and system hotfixes Configure bank check formats and coordinate multi-party testing with financial institutions and property management teams Establish new task runners for emerging funds to improve reporting accuracy and operational efficiency Lead end-to-end application integration projects with downstream systems from requirements gathering through production rollout Establish and coordinate disaster recovery testing protocols to validate business continuity capabilities and minimize operational risk...
Outside Spy
Mar 10, 2026
Duration not stated
SC Cleared Data Warehouse Engineer - Outside IR35 - Remote at Tenth Revolution Group, London, £400-£500 per day
£400 - £500 per day
Outside Spy Remote (London, UK)
SC Cleared Data Warehouse Engineer - Outside IR35 - Remote Role Overview We are seeking a skilled Data Warehouse Engineer to design, build, and maintain scalable data warehouse solutions within the Microsoft Azure ecosystem. The role focuses on developing robust data models, optimizing analytical queries, and supporting enterprise reporting through Azure SQL, OLAP technologies, and DAX-powered semantic models. You will collaborate with data engineers, analysts, and business stakeholders to ensure reliable, high-performance data pipelines and analytics platforms. Key Responsibilities Data Warehouse Development Design and develop enterprise data warehouse solutions using Azure SQL Database/Azure SQL Managed Instance/Azure Synapse Analytics. Build and maintain star and snowflake schemas for analytical workloads. Develop ETL/ELT pipelines for ingesting and transforming data from multiple source systems. Implement data partitioning, indexing, and performance...
Outside Spy
Mar 09, 2026
Duration not stated
SC Cleared Control-M Consultant at ECS Resource Group Ltd, London, £500 to £550 per Day
£500 - £550 per day
Outside Spy London, UK
SC Cleared Control-M Consultant Initial 20-day Contract Remote £500 - £550, outside IR35 We are looking for a Control-M Scheduling Engineer with strong experience in distributed job scheduling and automation. The role involves building and maintaining scheduling workflows, integrating systems using APIs/CLI, and supporting enterprise workload automation. Responsibilities: Control-M Distributed scheduling Creating Control-M Application Integrator jobs (API / CLI based) Experience with Control-M out-of-the-box integrations / plugins Linux and Windows scripting (e.g., Bash, Shell, PowerShell) Requirements: SC Cleared (essential) Proven experience with Control-M Distributed scheduling Experience creating Control-M Application Integrator jobs, particularly using APIs and CLI integrations Strong scripting skills in Linux and Windows environments (e.g., Bash, Shell, PowerShell) ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy.
Outside Spy
Mar 09, 2026
Duration not stated
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days at Owen Thomas | Pending B Corp™, London Area, £500-£600
£500 - £600 per day
Outside Spy London Area, United Kingdom
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...
Outside Spy
Mar 06, 2026
Duration not stated
Senior Data Engineer - Contract - Outside IR35 at Oliver Bernard, London Area, £600 per day
£600 per day
Outside Spy London Area, United Kingdom
Senior Data Engineer - Contract - Outside IR35 3 days per week onsite, Central London £600 per day 6 months (extensions possible) FinTech | London We’re partnering with a fast-growing FinTech at the heart of Private Market Investments. What They’re Looking For Strong grounding in computer science fundamentals and data modelling Solid experience across the software delivery lifecycle as it applies to data Commercial experience with Python (and strong SQL skills) Experience with streaming and data processing (e.g. Kafka, Spark, Athena or similar) Hands-on experience with Azure Familiarity with containerisation and orchestration Clear communicator who can explain technical decisions to non-technical stakeholders Why Join? Work on genuinely difficult engineering problems Exposure to large, complex systems in real production environments A culture built by engineers, for engineers 3 days per week onsite, Central London £600 per day 6...
Outside Spy
Mar 06, 2026
Duration not stated
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days at Owen Thomas | Pending B Corp™, London Area, £500-£600
£500 - £600 per day
Outside Spy London Area, United Kingdom
Senior / Lead Full-Stack TypeScript Engineer (GraphQL Specialist) | Contract | TypeScript, Node.js, GraphQL | Large-Scale Media Platform | £500-600/day Outside IR35 | 6 Months | London Hybrid 2 days We’re supporting one of the UK’s largest consumer digital platforms as they scale their engineering capability across several high-traffic products used by millions of customers. They’re looking for Senior / Lead Full-Stack TypeScript Engineers with deep GraphQL expertise to help evolve and scale their API architecture. This role sits within a high-performing product engineering team responsible for building and maintaining critical services that power modern web and mobile experiences. You’ll play a key role in designing and evolving GraphQL schemas, improving API architecture, and delivering performant full-stack applications within a mature engineering environment. This is an opportunity to work on complex distributed systems at significant scale, collaborating...
Outside Spy
Mar 04, 2026
6 Months or more
Senior Backend Engineer Node.js/TypeScript at SR2 - Socially Responsible Recruitment, London, 6 Months, £500-£525 per day
£500 - £525 per day
Outside Spy London, UK
Outside IR35 | £500-£525/day | 6 Months Remote - UK We're looking for experienced Backend Engineers to support the development and scaling of Back End platforms powering a range of digital products and internal systems. This is a hands-on contract role suited to senior engineers who enjoy technical ownership, improving system performance, and contributing to architectural decisions while remaining actively involved in delivery. The Role Develop Back End services using Node.js and TypeScript Build and enhance APIs and system integrations Improve scalability, reliability and overall platform performance Contribute to system design and technical decision-making Collaborate closely with engineering and product teams Provide technical guidance where required Technology Environment Node.js TypeScript/JavaScript APIs and microservices Cloud platforms (AWS, GCP or Azure) Distributed Back End systems Experience Required Strong commercial Back End engineering...
Outside Spy
Mar 04, 2026
6 Months or more
Generative AI Engineer/Applied AI Engineer at SR2 - Socially Responsible Recruitment, London, 6 Months, £575-£625 per day
£575 - £625 per day
Outside Spy London, UK
Generative AI Engineer/Applied AI Engineer Remote (UK) | Contract We're working with an AI technology company investing heavily in next-generation intelligent systems powered by Large Language Models and modern machine learning infrastructure. They're looking for an engineer to help design and deliver AI-driven applications that combine machine learning, Generative AI and scalable Back End systems. This role focuses less on model experimentation and more on building reliable AI-powered products used in live environments . The Role You'll work on the design and implementation of AI services powered by LLMs and advanced ML techniques, helping move AI capabilities from proof-of-concept into production. You'll collaborate with engineering and product teams to build systems that integrate language models, data platforms and cloud infrastructure. Responsibilities Develop applications powered by Large Language Models and Generative AI Design Retrieval-Augmented Generation...
Outside Spy
Mar 03, 2026
Duration not stated
Senior Full-Stack Software Engineer (AI/ML Specialist) at Careerwise, London Area, £500 per day
£500 per day
Outside Spy London Area, United Kingdom
Senior Full-Stack Software Engineer (AI/ML Specialist) Contract role, 12 months duration Rate- £500/day Outside ir35, fully work from Home The role is with one of our Global Clients looking for a Senior Full-Stack Software Engineer with deep expertise in AI-powered application development to join their team. This is a senior individual contributor role with opportunities to work on complex, high-impact AI projects across Azure cloud Infrastructure, and AI/ML platforms. Responsibilities: - Design and build scalable, enterprise-grade full-stack multi-agent , agentic AI applications using modern frameworks including Python, Next.js, TypeScript and Node.js. Architect and integrate AI/ML capabilities including RAG pipelines, AI agent orchestration, and LLM-powered features using OpenAI, Azure OpenAI, and LangChain/LangGraph Lead technical design decisions across API design, microservices architectures, translating complex business requirements into clean,...
Outside Spy
Mar 03, 2026
Duration not stated
Senior Machine Learning Engineer at SR2 | Socially Responsible Recruitment | Certified B Corporation™, London Area, £550 per day
£550 per day
Outside Spy London Area, United Kingdom
Machine Learning Engineer Location: UK (hybrid/on-site as required) Rate: £550 per day (Outside IR35) Security Clearance: Must hold UK SC Clearance Contract Machine Learning Engineer – Defence AI Programmes We are supporting a specialist AI organisation delivering advanced machine learning capability into the defence sector. They require a Contract ML Engineer to support ongoing high-priority programmes. This is an outside IR35 engagement at £550 per day, suited to an experienced contractor who can operate independently within secure environments. The Role You will work on the development and optimisation of advanced ML models, contributing to applied AI solutions across defence and national security projects. Key responsibilities include: Designing and implementing deep learning models Developing computer vision and pattern recognition systems Building and refining synthetic data pipelines Supporting modelling and simulation...
Outside Spy
Mar 12, 2026
Duration not stated
Senior .NET / Full Stack Developer – Hybrid – £600/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven at VirtueTech Recruitment Group, London Area, £600 per day
£600 per day
Outside Spy London Area, United Kingdom
Senior .NET / Full Stack Developer – Hybrid – £600/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven We have a unique opportunity for a Senior .NET / Full Stack Developer to join a payments company. As a Senior .NET / Full Stack Developer , you’ll play a key role in building and scaling a high-throughput payments platform as the business enters its next phase of growth. This includes launching new products, enabling new partner integrations, and expanding a platform that already powers multiple live financial services products used globally. You’ll be building on top of a modern, cloud-native platform built with .NET and Azure , designed around API-first architecture and event-driven microservices . The platform supports complex payment flows, partner integrations, and high-volume transaction processing. This is a hands-on senior engineering role where you’ll contribute to architectural discussions, drive engineering best...
Outside Spy
Mar 11, 2026
Duration not stated
Software Engineering Team Lead at Oliver Bernard, London Area, £550 per day
£550 per day
Outside Spy London Area, United Kingdom
Contract Engineering Team Lead – London (Hybrid) - £550/day OUTSIDE IR35 We’re currently partnering with a fast-growing fintech organisation that is transforming the payments landscape across the UK and Europe. They are looking for an experienced Engineering Team Lead to join their team on a contract basis, leading a high-performing engineering squad delivering customer-facing financial technology products. This is an excellent opportunity for a hands-on engineering leader who enjoys combining technical delivery with team leadership in a modern, fast-paced product environment. The Role As Engineering Team Lead, you’ll oversee a cross-functional engineering squad responsible for building and delivering customer-facing applications within a broader embedded finance ecosystem. You’ll help guide ideas from concept through to production, ensuring high engineering standards, predictable delivery, and strong team engagement. You’ll remain technically involved when...
Outside Spy
Mar 10, 2026
6 Months or more
Software Development Team Lead at Salt, London, 12 Months, £500-£650 per day
£500 - £650 per day
Outside Spy London, UK
Software Development Team Lead Outside IR35 | Hybrid London We are looking for two Software Development Team Leads to join a growing engineering team building an AI driven digital learning platform. This role will focus on scaling an existing product from early stage usage to high user volumes. You will work hands on across Python, Node, Typescript and AWS, contributing directly to code while helping shape technical direction. The role starts hands on and will grow into mentoring and light people leadership as the team expands. You will work closely with product, design and senior engineers to deliver new features, improve performance and ensure the platform is secure, reliable and scalable. Key Responsibilities Hands on development using Python, Node, Typescript and AWS Support technical design, architecture and decision making Mentor engineers and contribute to code reviews and best practice Help scale the platform to support significant user growth Contribute to...
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