19 developer jobs found

Role: Senior C# Developer Location: London (Remote) Day Rate: Up To £600 Per Day Type: Contract (Outside ir35) A highly regarded financial institution is seeking an experienced C# Developer to join their technology team on a contract basis. This role sits within a fast-paced environment focused on delivering robust, scalable solutions that support critical business operations. Key Responsibilities Develop and maintain high-performance applications using modern Microsoft technologies Collaborate with cross-functional teams to define, design, and deliver solutions Contribute to architectural decisions and best practices Ensure code quality, performance, and reliability through testing and optimisation What We're Looking For Extensive experience in software development using C# and the .NET ecosystem Strong understanding of modern application architecture and design principles Proven ability to build scalable and maintainable systems...

DV Cleared Python Developer Location: Stratford, London Onsite: 3 days per week Contract: part time Rate: £550-600 per day Outside IR35 Clearance: Active DV We're looking for an experienced DV-cleared Python Developer to support a secure technology project within the UK national security space. This is a hands-on engineering role, working across Python development, containerised environments, APIs, microservices and data pipeline technologies within an air-gapped environment . Skills Required Active DV clearance Strong commercial Python coding experience Strong Docker and Kubernetes experience, including deployment and management Experience building, deploying and maintaining capabilities within air-gapped environments Experience building and integrating with APIs and microservices Experience with Prefect, Airflow or similar data pipeline technologies Experience configuring and integrating workflow tooling, such as Jira Experience with...

Overview An exciting opportunity has arisen for a hands-on Front End Lead / Interim Tech Lead to join a growing product engineering team and lead the development of a next-generation SaaS platform built on Microsoft Azure. This role is ideal for a senior engineer who thrives in a fast-paced environment, enjoys building products from the ground up, and wants to remain deeply involved in coding while leading a small team. You'll be responsible for defining front-end engineering standards, implementing AI-assisted development practices, and driving delivery of a modern React-based application. Initially offered as a day-rate contract, there is a genuine intention to transition the successful candidate into a permanent Tech Lead position as the engineering function expands. The Role As Front End Lead, you will take ownership of the front-end architecture and delivery of a new React/TypeScript application, working closely with Product, Platform and Data teams. This is a highly...

Senior Product Engineer - Python/React | £650/day Outside IR35 Up to £650/day | Outside IR35 | 6 months | Shoreditch, London I'm working with an exciting early-stage HealthTech business that is building a highly ambitious consumer healthcare product from the ground up. They have an exceptionally experienced founding team with a strong track record of building, scaling and exiting successful technology businesses , and are now growing the engineering team at a key stage of the company's journey. They're looking for an experienced Product Engineer who wants genuine ownership - working closely with the founders and engineering team to take problems from initial idea through to production and customer feedback. This isn't a ticket-driven engineering role. They need someone who enjoys building, shipping and making product decisions . Key experience: Excellent Python engineering skills Async systems/data processing React and comfortable working across the full stack...

JWT / JSON Developer Location: London - Hybrid / 2 days per week onsite Contract Length: 6 months Day Rate: Up to £650 a day (Outside IR35) We 're supporting a leading UK financial services organisation in the search for an experienced JWT / JSON Developer to join a high-performing engineering team on an initial 6-month contract. This role will focus on authentication, authorisation and secure service-to-service communication across a large-scale digital platform. You 'll be working on OAuth 2.0 and OpenID Connect (OIDC) implementations, JWT-based authentication, and integrations with identity providers within a modern cloud-native environment. Key Responsibilities Develop and maintain authentication and authorisation services Implement OAuth 2.0 and OIDC integrations with identity providers Work with JSON Web Tokens (JWTs), including issuance, validation, signing and key management Contribute to CI/CD pipelines and trunk-based...

Contract Python Engineers – 3–6 Month Contracts London / Hybrid | £650–£750 pd Outside IR35 I’m working with a heavily VC-backed financial services platform that is going through a really exciting period of global expansion. They’ve built their own technology offering using modern Python and are disrupting a traditionally legacy-heavy sector. They’re now looking to bring in three technically strong Python Engineers on an initial 3–6 month contract, with the potential for further work. This is a small, highly technical team, so they’re looking for engineers who can genuinely stand on their own two feet. You’ll be expected to work across the development lifecycle rather than relying on someone else to handle areas such as testing, architecture or data structures. They’d particularly like to speak with people who have worked in smaller engineering teams, start-ups or scale-ups, where you’ve had to take ownership rather than being one small part of a huge...

Prompt Engineer (Claude / Claude Code) – Mortgage Sales £690 per day Outside IR35 Ideally London 1 day per week / Can be fully remote A leading UK mortgage technology provider is looking for a Prompt Engineer with strong Claude and Claude Code experience to support the development of a new Mortgage Sales System. This is a new role within the business. You'll work with stakeholders across the business to understand their requirements and translate them into high-quality prompts, instructions and AI workflows. You'll then test and refine them so the outputs are accurate, consistent and reliable. You'll work closely with the development team throughout delivery. This is not a developer role. A separate team builds and tests the application code, and your focus is on making sure the requirements, prompts and AI outputs are right. What you'll need: Strong hands-on experience with Claude and Claude Code Prompt engineering experience, including prompt design...

Prompt Engineer (Claude/Claude Code) - Mortgage Sales £695 per day Outside IR35 Ideally London 1 day per week/Can be fully remote A leading UK mortgage technology provider is looking for a Prompt Engineer with strong Claude and Claude Code experience to support the development of a new Mortgage Sales System. This is a new role within the business. You'll work with stakeholders across the business to understand their requirements and translate them into high-quality prompts, instructions and AI workflows. You'll then test and refine them so the outputs are accurate, consistent and reliable. You'll work closely with the development team throughout delivery. This is not a developer role. A separate team builds and tests the application code, and your focus is on making sure the requirements, prompts and AI outputs are right. What you'll need: Strong hands-on experience with Claude and Claude Code Prompt engineering experience, including prompt design and optimisation...

Senior Technical Architect Tecknuovo is a digital delivery partner with a Deliberately Different approach. This means we focus on people, not technology. We move at pace and ensure Zero Dependency on us at the end of each project. What you'll be working towards We are currently looking to engage with Senior Technical Architect on a large organisation project within the energy sector. The successful candidate will have: Experience delivering enterprise technology assessments, target-state architectures, and transformation roadmaps. Strong expertise in Microsoft 365 (M365) and Digital Workplace architecture, strategy, and governance. Proven experience with Azure Virtual Desktop (AVD) optimisation, operating model design, and service improvement. Strong background in DevOps strategy , software delivery transformation, and developer experience initiatives. Experience defining GitHub and Azure DevOps strategies, including tooling...

DV Cleared Software Engineer London | onsite Outside IR35 | Long-term Contract Active DV Clearance Required I'm working with an organisation delivering a long term programme within UK Government that is looking to add experienced Software Engineers with strong Python skills to its team. The role will involve designing, developing and improving software solutions within a highly secure technical environment. You'll be working alongside experienced engineers and technical stakeholders on challenging projects where there is plenty of scope to contribute ideas and influence how solutions are built. What we're looking for: Strong commercial Python development experience Background as a Software Engineer, Python Developer or Application Developer Experience developing applications in Linux environments Knowledge of modern software engineering and development practices Exposure to data processing, messaging, integration or workflow-based systems Comfortable tackling...

TypeScript Engineer £500- £550 per day Outside IR35 1 day onsite - London We 're working with a large international travel and transport organisation that is modernising its digital ecosystem following the consolidation of multiple business units. The company is investing heavily in next-generation data and middleware platforms, and they 're looking for a TypeScript Engineer to help shape the services and tooling behind this transformation. The team 's mission is to replace legacy systems with clean, event-driven services and provide consistent, reliable data to applications across the business - from customer-facing products to operational systems. The Role You 'll be joining a multidisciplinary engineering team focused on building backend and occasionally frontend components using modern TypeScript across Node.js and React/Next.js. The role centres on developing APIs, event-driven services, and internal tools that support large-scale, cloud-hosted...

Contract Applications Test Engineer - Windows / Networking Location: Derbyshire - Fully Onsite Contract: Initial 6-12 Months Day Rate: Negotiable DOE IR35: Outside IR35 Security Clearance: Current SC/DV clearance is preferred. Candidates whose SC/DV clearance has been placed on hold within the last 12 months may also be considered, subject to eligibility for transfer/reactivation. We're supporting a specialist technology and engineering business in Derbyshire with the appointment of an experienced Applications Test Engineer for an initial 6-12 month contract. You'll be testing Windows-based applications used within complex networking and communications environments. This is a hands-on testing role covering everything from application functionality and usability through to integration with network-connected devices. You'll work alongside software and systems engineers within an established technical team, helping ensure applications and associated systems perform reliably...

ERP Transformation Communications & Engagement Lead Hybrid * must be able to attend site (Dorchester DT1 1XJ) Must have Local Government and Oracle Fusion experience. £600 a day Ongoing assignment (18 months) Outside IR35 About Connect2Dorset Connect2Dorset is the managed service recruitment partner to Dorset Council, providing temporary, contract, and interim opportunities across the organisation. Built on values of being ethical, trustworthy, and caring, our profits are reinvested back into our Local Authority shareholders. Role purpose To lead the communications and stakeholder engagement workstream for the Council's ERP transformation - the migration from SAP to Oracle Fusion Cloud across Finance, HCM, Payroll and Commissioning & Procurement. The role holder develops and executes the end-to-end communications and engagement strategy that carries every stakeholder group, from executive leadership and elected members through to operational front-line users, on...

Palantir Engineer £650-750 p/d Outside IR35 | 3-6 months | London / Remote Ncounter is supporting a major healthcare transformation programme and is looking for experienced Palantir Engineers to help develop data-driven applications across a complex and highly regulated environment. The programme is focused on improving how operational and service data is structured, connected and used, giving teams better access to information and supporting more effective decision-making across healthcare services. This is a hands-on engineering role, working within an established delivery team across several concurrent workstreams. You will build applications within the Palantir ecosystem, translating complex healthcare and operational requirements into practical workflows, applications and data models. The role: Build and enhance applications using Palantir, with a particular focus on SEQ Develop workflows, forms and user-facing applications around real operational...

Palantir Engineer £650-750 p/d Outside IR35 | 3-6 months | London / Remote Ncounter is supporting a major healthcare transformation programme and is looking for experienced Palantir Engineers to help develop data-driven applications across a complex and highly regulated environment. The programme is focused on improving how operational and service data is structured, connected and used, giving teams better access to information and supporting more effective decision-making across healthcare services. This is a hands-on engineering role, working within an established delivery team across several concurrent workstreams. You will build applications within the Palantir ecosystem, translating complex healthcare and operational requirements into practical workflows, applications and data models. The role: Build and enhance applications using Palantir, with a particular focus on SEQ Develop workflows, forms and user-facing applications around real operational requirements Design...

Palantir Engineer £650-750 p/d Outside IR35 | 3-6 months | London / Remote Ncounter is supporting a major healthcare transformation programme and is looking for experienced Palantir Engineers to help develop data-driven applications across a complex and highly regulated environment. The programme is focused on improving how operational and service data is structured, connected and used, giving teams better access to information and supporting more effective decision-making across healthcare services. This is a hands-on engineering role, working within an established delivery team across several concurrent workstreams. You will build applications within the Palantir ecosystem, translating complex healthcare and operational requirements into practical workflows, applications and data models. The role: Build and enhance applications using Palantir, with a particular focus on SEQ Develop workflows, forms and user-facing applications around real...

Linux Engineer - DV cleared +12 months + +On site in Hampshire +Outside IR35 +£550 - £650 a day +DV cleared role - current active clearance is essential +Sole British national only - due to the nature of the project We're looking for an experienced DV Cleared Linux Engineer to join a high-profile Defence programme supporting critical secure infrastructure within an MOD environment. This is a fully on-site role based in Hampshire, offering the opportunity to work on business-critical systems where security, resilience, and performance are paramount. You'll become part of an experienced technical team responsible for maintaining, supporting, and enhancing Linux-based platforms across a highly secure environment. As a Linux Engineer, you'll be responsible for the administration, maintenance, and optimisation of enterprise Linux environments, ensuring systems remain secure, available, and operating at peak performance. Key responsibilities include: Administering and...

Senior Contract Data Engineer (6-month contract) | Amazon Bedrock Project Location: London, FULLY REMOTE! Contract Duration : 6 months, initial (extension is possible, but hasn 't been confirmed) Day Rate : £575-600 per day, Outside IR35 Sector: Entertainment / Digital I have an exciting new contract opportunity for a Senior AWS Data Engineer to play a key role in developing a Gen AI platform which will leverage Amazon Bedrock AgentCore. The successful candidate will be responsible for designing and implementing natural language-to-SQL capabilities, which will enable the business to query complex data using conversational AI to receive accurate summaries, supporting developers & Senior Stakeholders. Responsibilities: - Design & implement scalable data solutions which fully support Amazon Bedrock AgentCore applications - Develop and optimise NL to SQL workflows across the enterprise data platform - Create AI-driven...

QA / Integration Tester - Commodity Trading - London - Outside IR35 A leading energy company is seeking a hands-on QA / Integration Tester to support its LNG Technology team in the implementation of a new trading platform. Overview This role sits at the heart of a major platform rollout, focusing on end-to-end integration testing across an ETRM platform and its connected trading and operational systems. You’ll play a critical role in ensuring system stability, data integrity, and workflow accuracy across the broader LNG trading ecosystem. Key Responsibilities • Own and execute integration testing for the trading platform • Validate cross-system workflows and data flows across connected energy trading systems • Identify, document, and track defects through to resolution • Work closely with developers, business analysts, and stakeholders to ensure quality delivery • Operate as the sole QA resource on the project, driving testing...