54 contract jobs found in London

Join a growing software team developing technology that supports cutting-edge scientific innovation. We 're looking for a Senior Software Test Engineer (not a QA Tester) 6 month contract (outside IR35) with strong experience in test automation, software engineering and CI/CD environments. As Senior Software Test Engineer Experience Reuired: Experience as a Software Test Engineer, SDET or Automation Test Engineer Strong Python, C# or Java skills Experience building and maintaining automated test frameworks Integration, system and regression testing experience Experience working closely with software developers in Agile teams CI/CD, Git, Azure DevOps, Jenkins or similar tools Ideal backgrounds: Scientific instrumentation, biotech, medtech, robotics, aerospace, defence, telecoms or software product companies. This is a hands-on engineering role focused on automating quality, not a traditional manual QA position. Permanent and contract...

Contract - Senior Data Engineer (Snowflake Cortex)  Rate: £600 - 650 per day, Outside IR35 Location: London (2 days per week, on-site)  Start Date: Monday 9th November 2026  Length: 6 months initially, with a chance of extension.  Interview Stages: 1-stage over Teams, with joint company owners (CEO and CTO)  Opus have partnered with a rapidly growing HealthTech start-up who's recently received funding. They're on a mission to build a next-gen data platform for processing millions of confidential patient records and clinical documents securely, and at scale. The successful Data Engineer will play a pivotal part in helping to design and deliver AI-enabled document processing pipelines using Snowflake Cortex, helping to extract valuable insights from unstructured healthcare data including patient records, referral letters, clinical notes, PDFs and compliance documentation.  The role: - Design and build scalable data pipelines in Snowflake (Snowpipes) - Design and develop cloud-native...

AI Enabled Full Stack Engineer - Outside IR35 £500/day - 3 month contract - 1 day p/week in London I'm working with a leading European technology business that has recently undergone a major technology transformation, building a new AI-driven, cloud-native platform now live with a significant customer base. They're looking for multiple AI Enabled Engineers on a contractual basis to continue enhancing the platform, maintaining their industry leading status. We're looking for innovative full stack engineers with strong software engineering fundamentals, particularly those with: A genuinely AI-first approach to development, using tools such as Claude, Cursor or Copilot as part of your daily workflow Strong C#/.NET experience - now building in Python/Typescript Good Angular or React experience Experience with AWS/cloud-native development Strong software engineering fundamentals across APIs, databases, testing and CI/CD Experience with LLMs, agentic systems or...

Senior Developer - Front Office RAD/Trader Tools £700 p/day | Outside IR35 | Largely remote | 12-month contract We are hiring a hands-on Senior Developer for a prestigious investment banking client, delivering tactical fixes and enhancements directly for Front Office traders. This role suits someone who thrives in a RAD/tactival environment: quick to understand a problem, comfortable with changing priorities and able to deliver practical, reliable solutions at pace. The focus is on short development cycles, immediate business needs and improving existing trading tools, rather than a long-term strategic programme. Initial work will support Securities Lending, with opportunities to work across other trading desks. What we're looking for: Strong development experience in C#, Python and Excel Proven experience in Front Office RAD or tactical development A quick-thinking, pragmatic problem solver who can work independently Confidence working directly with traders to...

Contract Data Scientist Outside IR35 £500 - £550 Per Day 2 Month Duration 2 Days In London Office The Company They are a specialist technology business that develops advanced analytics solutions deployed within clients ' secure environments. Their platform helps organisations understand customer behaviour, identify value drivers, and build predictive capabilities using transactional and event data. They work closely with enterprise clients on complex, data-led challenges, combining product innovation with practical delivery. The Role and Deliverables Build customer segmentation, propensity, and forecasting models using large-scale customer datasets. Lead clustering and segmentation analysis, with a particular focus on delivering a core segmentation and supporting sub-segmentations. Develop models relating to motor and home insurance quote behaviour and customer decision-making. Work from defined business requirements and data science...

Contract Lead Node.js Engineer (HubSpot & Commercial Systems) Fully Remote Outside IR35 £500 - £580 Per Day 8 Month Duration The Company They are a global technology and digital marketing organisation operating at scale across online consumer platforms. Their products combine data, technology, content, and partnerships to connect highly engaged audiences with relevant digital experiences. With a strong engineering culture and significant volumes of commercial data flowing through their platforms, they continue to invest in the systems and tooling that support business growth. This contract supports a key engineering function during a period of planned leave cover. The Role and Deliverables Lead development and ongoing enhancement of a proprietary commercial data platform that acts as a bridge between internal systems and HubSpot. Drive architectural decisions and define scalable solutions across multiple business and engineering...

CONTRACT AI SOFTWARE ENGINEER - OUTSIDE IR35 - SC Cleared NEW CONTRACT OPPORTUNITY AVAILABLE Rate: Up to £600 per day Location: London / Remote-first Working Pattern: Part-time, 2-3 days per week; predominantly remote with occasional London workshops Contract Length: 3 months initially, with extension likely IR35 Status: Outside IR35 Start Date: 19th October 2026 (subject to availability) I 'm currently working with an organisation delivering innovative AI and data solutions within the UK public sector, who are looking for an experienced AI Software Engineer to join an initial 3-month engagement on a part-time basis. This is an opportunity to help shape how a new public sector organisation operates using AI from the outset, combining hands-on engineering with the design of AI-enabled workflows, governance and operating models. THE ROLE You 'll work as part of a collaborative engineering team, helping design and build...

A growing insurance company is seeking an experienced IAM/Entra ID Engineer to support and enhance its identity and access management capabilities across a Microsoft-centric environment. The ideal candidate will have strong experience with Microsoft Entra ID , Identity Governance & Administration (IGA) tools, and wider Microsoft infrastructure technologies. Essential Skills Strong experience with Microsoft Entra ID (Azure AD) Expertise in Identity & Access Management (IAM) and identity lifecycle management Hands-on experience with IGA (Identity Governance & Administration) tools such as SailPoint, Saviynt, Microsoft Identity Manager (MIM) or similar Experience with SSO, MFA, Conditional Access, RBAC and Privileged Identity Management (PIM) Knowledge of Joiner, Mover, Leaver processes, access reviews and entitlement management Strong experience across Microsoft 365 and hybrid identity environments PowerShell Scripting and automation experience...

Senior Full Stack Developer - Outside IR35 - Contract - SC Essential We are looking for a senior full-stack developer to join our team, working collaboratively in a fast-paced environment with some ambiguity. This is a senior dev role with a focus on supporting more junior members of the team and sharing that with the existing tech lead. The product is a note-taking and summarisation tool for use in local government, for which the remaining technical work mainly comprises infrastructure, evaluations, technical improvements, and UCD-driven product features. Must have: Experience mentoring junior developers Previously given responsibility for a chunk of delivery Comfortable working in JavaScript and TypeScript + Node Full-stack developer Nice to have: previous experience with AWS, Terraform, any UK government projects Slightly nice to have but lower priority: LLM/AI experience and Next.JS £600 per day outside IR35 Start date: 02/11/2026 End date:...

Senior Analytics Implementation Consultant (GTM & Server-Side Tracking) London | 3-month Contract | £450-500/Day | Outside IR35 This is an opportunity to join a high-performing digital measurement and implementation team during a critical period of growth and delivery. You'll take ownership of a substantial implementation backlog, contribute to complex server-side tracking projects, and help deliver key client initiatives before year-end. The Company They are a consultancy-led organisation delivering digital analytics, measurement, and implementation services across multiple markets. With a centralised team structure and a growing client portfolio, they support a range of enterprise-level digital transformation and tracking projects. The team operates in a fast-paced environment, balancing technical excellence with a collaborative and proactive culture. The Role and Deliverables Deliver and maintain client-side and server-side tracking implementations across...

Senior Analytics Implementation Consultant (GTM & Server-Side Tracking) London | 3-month Contract | £450-500/Day | Outside IR35 This is an opportunity to join a high-performing digital measurement and implementation team during a critical period of growth and delivery. You 'll take ownership of a substantial implementation backlog, contribute to complex server-side tracking projects, and help deliver key client initiatives before year-end. The Company They are a consultancy-led organisation delivering digital analytics, measurement, and implementation services across multiple markets. With a centralised team structure and a growing client portfolio, they support a range of enterprise-level digital transformation and tracking projects. The team operates in a fast-paced environment, balancing technical excellence with a collaborative and proactive culture. The Role and Deliverables Deliver and maintain client-side and server-side tracking...

PAM Consultant Privileged Access Management Delinea & Saviynt £600-650 per day outside IR35 5 month contract London/remote hybrid working UK SC Clearance eligibility required You'll take ownership of identity security platforms that protect critical applications, while helping shape how IDAM security develops across a complex cloud environment. This is a five-month contract for an experienced Identity Security Engineer who can get close to the technology quickly. You'll work across PAM, IGA, PKI and cloud identity, with exposure to both Azure and AWS. The environment gives you meaningful technical scope. You'll support established enterprise platforms including Delinea Secret Server, Saviynt IGA and AppViewX PKI. You'll also help tackle emerging identity challenges around AI and non-human identities. What you'll be working on Improving and optimising IDAM security products, controls and automation. Supporting the onboarding of critical...

Network Engineer - £450 - £500 Per Day (Outside IR35) – 3 Months Rolling – London (Hybrid) Overview We are currently partnered with a leading UK enterprise seeking an experienced Network Engineer to join a major data centre migration and network transformation programme on an initial 3-month rolling contract in London. The successful candidate will be responsible for designing, implementing and migrating complex enterprise network infrastructure, with a particular focus on Cisco ACI, Fortinet Firewalls and F5 Load Balancers. This is a hands-on, project-focused opportunity involving large-scale data centre migrations, network modernisation and secure connectivity across hybrid infrastructure environments, with no BAU support responsibilities. Role & Responsibilities Design, implement and migrate enterprise network infrastructure across complex data centre environments. Lead technical delivery of data centre migration activities, ensuring minimal...

Network Engineer - £450 - £500 Per Day (Outside IR35) – 3 Months Rolling – London (Hybrid) Overview We are currently partnered with a leading UK enterprise seeking an experienced Network Engineer to join a major data centre migration and network transformation programme on an initial 3-month rolling contract in London. The successful candidate will be responsible for designing, implementing and migrating complex enterprise network infrastructure, with a particular focus on Cisco ACI, Fortinet Firewalls and F5 Load Balancers. This is a hands-on, project-focused opportunity involving large-scale data centre migrations, network modernisation and secure connectivity across hybrid infrastructure environments, with no BAU support responsibilities. Role & Responsibilities Design, implement and migrate enterprise network infrastructure across complex data centre environments. Lead technical delivery of data centre migration activities, ensuring minimal disruption to...

Halo ITSM Automation Engineer | Contract | Outside IR35 | Immediate start Client: national UK charity We're looking for a hands-on Halo ITSM specialist to deliver a defined set of automation requirements and identify further opportunities across the service desk. What you'll do Review the existing automation requirements and turn them into working Halo workflows and automations. Build, test and deploy the automations through to production. Assess current ITSM processes and recommend further automation opportunities, prioritised by value and effort. Document all configuration and hand over knowledge to the internal team so they can support it themselves. What you'll bring Strong, recent hands-on experience with Halo ITSM (HaloPSA experience is also relevant), including workflow configuration, automation rules, ticket types and SLAs. Experience with Halo integrations, such as the Halo API, webhooks, Integrator and runbooks. Scripting or integration experience...

Network Engineer - £450 - £500 Per Day (Outside IR35) - 3 months Rolling - London (Hybrid) Overview We are currently partnered with a leading UK enterprise seeking an experienced Network Engineer to join a major data centre migration and network transformation programme on an initial 3-month rolling contract in London. The successful candidate will be responsible for designing, implementing and migrating complex enterprise network infrastructure, with a particular focus on Cisco ACI, Fortinet Firewalls and F5 Load Balancers. This is a hands-on, project-focused opportunity involving large-scale data centre migrations, network modernisation and secure connectivity across hybrid infrastructure environments, with no BAU support responsibilities. Role & Responsibilities Design, implement and migrate enterprise network infrastructure across complex data centre environments. Lead technical delivery of data centre migration activities, ensuring minimal disruption to...

Full Stack Developer (Kotlin & TypeScript) - Public Sector Transformation - OUTSIDE IR35 - ACTIVE SC CLEARANCE REQUIRED Tecknuovo is a deliberately different digital consultancy, delivering secure, modern technology solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an experienced Full Stack Developer (Kotlin & TypeScript) to support a major public sector transformation programme focused on the modernisation and decomposition of Legacy probation systems. This role would suit senior software engineers with strong experience delivering cloud-native applications, APIs and digital services within complex enterprise environments. You'll play a key role in building the next generation of platforms and services that will replace critical Legacy systems and support the wider transformation programme. Working as part of a multidisciplinary delivery team, you'll collaborate with architects, product teams, engineers and...

PAM Consultant Delinea & Saviynt Privileged Access Management £600-650 per day outside IR35 5 month contract London/remote hybrid working UK SC Clearance eligibility required You'll take ownership of identity security platforms that protect critical applications, while helping shape how IDAM security develops across a complex cloud environment. This is a five-month contract for an experienced Identity Security Engineer who can get close to the technology quickly. You'll work across PAM, IGA, PKI and cloud identity, with exposure to both Azure and AWS. The environment gives you meaningful technical scope. You'll support established enterprise platforms including Delinea Secret Server, Saviynt IGA and AppViewX PKI. You'll also help tackle emerging identity challenges around AI and non-human identities. What you'll be working on Improving and optimising IDAM security products, controls and automation. Supporting the onboarding of critical...

Our London based client are working through an exciting Finance Transformation programme implementing Microsoft Dynamics 365 Finance & Operations (D365 F&O). They are looking for an experienced D365 F&O Finance Functional Consultant, with a strong focus transactional finance processes (AP, AR, O2C) to join them on an initial 5 month outside IR35 contract. The successful candidate will bring hands-on D365 F&O functional consulting experience, supporting configuration, solution design, issue resolution and process optimisation across the Finance workstream. They will work closely with business stakeholders and technical teams to ensure the system meets business requirements and supports efficient, controlled finance operations. The role will require 3 days per week onsite at the clients central London offices. Key Responsibilities Provide functional consulting expertise across D365 F&O Finance, covering transactional finance modules including Accounts...

ANALYTICS ENGINEER 6-MONTH CONTRACT £450- £550 PER DAY OUTSIDE IR35 This role offers a great opportunity for an Analytics Engineer to join a fast-scaling digital business undergoing a complete rebuild of its analytics infrastructure. You 'll play a key role in reshaping how data is modeled, accessed, and used across teams - all with a focus on clarity, consistency, and self-serve analytics. The environment values autonomy, quality, and user-first thinking, with the freedom to shape best practices from the ground up. THE COMPANY This is a high-growth consumer business committed to data-informed decision-making across marketing, operations, product, finance, and customer success. They 're currently rebuilding their analytics platform with modern, scalable tools and need a strong contractor to accelerate this transition. Working in a fast-paced, collaborative, and remote-first environment, you 'll make a lasting impact on how data...