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Contract - Senior Frontend Engineer (React / TypeScript) – Build Beautiful Interfaces for Advanced AI Do you love crafting high-quality, intuitive user interfaces? Are you excited by the idea of working at the intersection of AI and frontend innovation? Looking for a role where you’ll own key parts of a modern product and work with the latest tech? Our client, a fast-growing and future-focused organisation, is searching for a Senior Frontend Engineer to help shape the user-facing experience of a sophisticated generative AI platform. This is a high-impact position offering technical autonomy, modern tools, and the chance to build real-time applications used by thousands. If you enjoy building elegant, performant UIs and working closely with cross-functional teams to deliver thoughtful product experiences - this could be your next big move. Why This Role is Great In this role, you'll have the opportunity to: • Design and build a modern SPA using React, TypeScript, and Vite, with a strong emphasis on performance, accessibility, and usability., • Deliver responsive, accessible interfaces using utility-first CSS (e.g. Tailwind CSS) and a component-led design system (e.g. Shadcn/UI or similar)., • Work with real-time data and streaming endpoints, integrating AI-powered features into the frontend using WebSockets and SDKs., • Implement secure user flows with OAuth-based authentication and token/session handling., • Optimise performance and delivery using techniques like code splitting, lazy loading, and CDN-aware strategies., • Ship confidently with containerised deployments (Docker), CI/CD pipelines (GitHub Actions), and cloud hosting (AWS S3/CloudFront)., • Take ownership of quality by championing testing, accessibility (WCAG 2.1), error monitoring, and frontend performance., • Collaborate with AI, backend, product, and design teams to translate ambitious ideas into polished frontend experiences., • Mentor and guide other engineers, helping to level up team-wide frontend standards and best practices. About You This role would suit someone who: • Has solid experience building and scaling single-page applications using React and TypeScript, ideally in production environments., • Enjoys working with modern build tools and libraries such as Vite, pnpm, or similar., • Has experience (or a strong interest) in real-time applications, including WebSocket-based interactions., • Understands the principles of responsive design, browser performance, and accessible frontend development., • Has worked with or is curious about modern state management (e.g. Zustand, TanStack Query), and knows how to architect state across complex applications., • Is comfortable shipping in a DevOps-aware environment – containerisation, CI pipelines, cloud hosting., • Values clean code, enjoys testing, and appreciates the importance of observability and security in production systems., • Brings a collaborative, user-first mindset and a desire to help others grow and succeed. Bonus points for experience with platforms like Palantir Foundry – though it's by no means a requirement. Diversity & Inclusion We and our client are committed to building diverse, inclusive teams that reflect the world we live in. If you’re excited about this role but don’t tick every box, we’d still love to hear from you. Your unique perspective, background or skills could be exactly what this team needs. Apply Now Ready to bring your frontend expertise to a mission-led team working at the forefront of AI? Apply today – we’d love to hear how your experience could shape what comes next.

Outside IR35 - 3 days per week on-site - Embedded Software Developer Contract I am working with an exciting company focused on the development of cutting edge precision satellite communications and telemetry devices that are looking for an Embedded Software contractor to join their team. As the right engineer you will be an expert low-level developer using C, with experience working on the STM32 MCU and have extensive knowledge of GNSS (GPS or GSM) and preferably some experience of RF communications systems (at software level) and even better if you also have experience working on systems security, including secure bootloaders and OTA update mechanisms. This is an Outside IR35 contract requiring 3 days per week worked on-site in Oxford and would run for 6 months initially. Key Points: • Embedded Software development in C, • Experience with the STM32, • Experience working with GNSS (GPS or GSM), • Hybrid working - non-negotiable, • Outside IR35 Please apply for more details. Outside IR35 - 3 days per week on-site - Embedded Software Developer Contract

Senior Backend Engineer – Python | Django | FastAPI | AWS Build systems that power the future of AI Are you a high-agency backend engineer who thrives on solving complex problems at scale? Do you enjoy designing secure, production-grade systems and shipping robust APIs that make advanced technology accessible? Would you like to shape core infrastructure for AI-powered products in a fast-paced, ambitious environment? If this sounds like your kind of challenge – this could be the opportunity that unlocks your next big career move. About the Role Our client – an innovative, deep tech start-up based in the UK – is seeking a Senior Backend Engineer with expertise in Python (Django or Flask) to architect and deliver production-grade systems for cutting-edge AI products. This is a role for engineers who enjoy owning backend services end-to-end – from design to deployment and everything in between. You'll play a pivotal role in building secure, scalable APIs, optimising infrastructure, and integrating backend services directly with AI models and real-time inference pipelines. This is a hybrid role with flexible hours, offering rapid career progression and a chance to define best practices from the ground up in a company that genuinely values engineering excellence. Why This Role is Great In this role, you’ll get to: • Design scalable backend architecture using FastAPI and Python for high-performance workloads, • Build and maintain robust APIs following RESTful conventions and OpenAPI/Swagger standards, • Own the performance of PostgreSQL databases, including partitioning, indexing, and horizontal scaling strategies, • Secure and optimise infrastructure using Docker, AWS, and infrastructure-as-code (IaC) tools like Terraform, • Collaborate directly with AI and product teams, translating real-world requirements into elegant backend systems, • Mentor engineers and influence architecture, driving backend standards and operational excellence, • Take full ownership of systems in production, including logging, monitoring, incident response, and disaster recovery About You You might come from a variety of backgrounds, but you’ll thrive in this role if you’re excited to: • Work with modern tools like Python, FastAPI, PostgreSQL, Docker, and AWS, • Engage with real-time systems and AI model integration pipelines, • Build on your experience of deploying APIs, writing clear documentation, and maintaining strong testing practices, • Apply your knowledge of CI/CD tools like GitHub Actions or Argo CD to ship high-quality code fast, • Be hands-on with authentication systems (OAuth2, OIDC) and secure API design, • Operate with a security-first mindset, using tools like GuardDuty, CloudWatch, and IAM best practices, • Grow in a high-trust, high-ownership culture where autonomy is valued and impact is recognised Ideal Skills Wishlist (If you meet most of these, we’d love to hear from you!) • 5+ years of backend engineering, ideally in Python with Django, Flask, or FastAPI, • Proven experience building REST APIs in production, • Strong command of relational databases (especially PostgreSQL), • Familiarity with containerisation (Docker) and version-controlled environments, • Hands-on AWS experience (VPC, EC2, S3, IAM, ALB/ELB, etc.), • Exposure to CI/CD practices and infrastructure-as-code, • Comfortable leading backend projects and mentoring peers Diversity & Inclusion We’re committed to building teams that reflect a broad range of backgrounds, perspectives, and skills – and so is our client. We actively encourage applications from all genders, ethnicities, abilities, and experiences. If you're passionate about backend engineering and think this role sounds exciting – even if your CV doesn’t tick every box – we encourage you to apply. Ready to Make a Real Impact? If you’re ready to join a team building AI systems that work at scale in the real world, we’d love to hear from you. Apply now to start a conversation about your next chapter as a Senior Backend Engineer.

As a Senior TM1 Developer, you will be responsible for leading the design, development, and continuous improvement of IBM Planning Analytics (TM1) solutions that enable strategic financial planning and performance reporting. Relationship management with IBM and other TM1 developers across the organi

As a Senior TM1 Developer, you will be responsible for leading the design, development, and continuous improvement of IBM Planning Analytics (TM1) solutions that enable strategic financial planning and performance reporting. Relationship management with IBM and other TM1 developers across the organi

Robert Half Technology are currently recruiting for a 3 month Contract Integration Analyst / Developer for a fantastic manufacturing business in the South West. Occasional travel to the office in the South West - full time - 3 month contract.

We are looking for a skilled software developer to help the engineering team refactor the ‘research-level’ code into production-ready code.

This is a full-time remote role for a Smart Contract Developer. The developer will be responsible for designing, implementing, and testing smart contracts on blockchain platforms. Experience with Smart Contract development and blockchain technologies, particularly Ethereum or other major platforms.

C# Data Centric Developer with experience with real time analytical databases (non relational).

JavaScript Developer (Outside IR35). This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. JavaScript Developer (Outside IR35).

Senior Backend Engineer – Python | Django | FastAPI | AWS.Build systems that power the future of AI.Are you a high-agency backend engineer who thrives on solving complex problems at scale?.Do you enjoy designing secure, production-grade systems and shipping robust APIs that make advanced technolog

JavaScript Developer (Outside IR35). JavaScript Developer (Outside IR35). This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology.

Contract - Senior Frontend Engineer (React / TypeScript) – Build Beautiful Interfaces for Advanced AI.

Title: Contract Full-Stack Engineer (Next & Node).

Great new contract requirement working for an innovative and successful Events Tech company as an App Developer. Working closely with the CTO, following clear technical requirements along with an experienced Developer and the Head of department to bring both apps to life, from initial build to live

Contract SAP ABAP Developer needed (DV Cleared) – Hybrid. We are seeking aSenior SAP ABAP Developerto join a secure, large-scale SAP transformation programme within a high-security engineering/manufacturing environment.

Contract - Senior Frontend Engineer (React / TypeScript) – Build Beautiful Interfaces for Advanced AI.

Contract Software Engineer / Lead Developer - Expert. We're looking for an exceptional Software Engineer / Back-End Developer - a true "super dev" - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for so

As a contractor of this team, you will play a crucial link between Roblox and its developer community. Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of develope

We are currently looking for a PHP Developer - 6 Month Contract in Europe. This contract position provides flexibility, technical challenges, and the chance to gain exposure to enterprise‑level projects in a supportive team setting. Collaborate with frontend developers using React and JavaScript t

Full Stack Web Developer REMOTE CONTRACT. We’re seeking a Full Stack Developer with a focus on Front‑End development, combining strong technical expertise with a passion for creating exceptional user experiences. This is a fully remote contract which requires candidates located in a European tim

CONTRACT Equities Quantitative Developer (Python). CONTRACT - Python Quantitative Developer - Equities - Up to £750 Outside - Fully Remote - London. Our elite financial services client is looking for Python Quantitative Developers with Equities experience to develop cutting‑edge, high‑throughpu

Contract - Back End Developer - Python/AWS - £500-£700/day (Outside IR35) - ID44270.

Direct message the job poster from TechShack.Lead Mobile App Consultant (UK & EU) - 50+ Recommendations.I am on the search for a React Native Freelancer to join an exciting Scale Up in the FinTech Industry.This role is 6 months, Remote & Outside of IR-35.Technologies: React Native, Typescript, React

JavaScript Developer (Outside IR35). JavaScript Developer (Outside IR35). This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology.

Contract - Front End Developer (React/TypeScript) - £500-£700/day (Outside IR35).

Join a dynamic project as a Full Stack Developer, responsible for building and maintaining scalable web applications in a fully remote environment. Twine is a leading freelance marketplace connecting top freelancers, consultants, and contractors with companies needing creative and tech expertise.

Month Contract - Modernise a market-leading platform!.

Senior Backend Engineer – Python | Django | FastAPI | AWS.Build systems that power the future of AI.Are you a high-agency backend engineer who thrives on solving complex problems at scale?.Do you enjoy designing secure, production-grade systems and shipping robust APIs that make advanced technolog

Front Office Kotlin Developer (Contract). A scaling FinTech is looking for an experience Front Office Developer with extensive Kotlin experience to join a top-tier team.

Contract SAP ABAP Developer needed (DV Cleared) – Hybrid. We are seeking aSenior SAP ABAP Developerto join a secure, large-scale SAP transformation programme within a high-security engineering/manufacturing environment.

Contract - Senior Quant Developer at an elite quant firm.

Title: Contract Full-Stack Engineer (Next & Node).

C# Data Centric Developer with experience with real time analytical databases (non relational).

Fruition Group are working with a leading UK consultancy to find an experienced Contract Python Developer to work on a large greenfield application working with the global team. Initial 6-month contract with potential extension. Get notified about new Python Developer jobs in.

Senior Power Platform Developer. This a contract role open to applicants in the UK.

Great new contract requirement working for an innovative and successful Events Tech company as an App Developer. You will be a Senior level App Developer to join an in-house team to help develop and launch two exciting new products that will form a key part of the company proprietary event technolog

Opus is partnering with a dynamic consultancy delivering innovative solutions to a public sector department.We’re on the lookout for an experienced.API strategy and lead migration efforts from Apigee Edge to Apigee X.Lead migration from Apigee Edge to Apigee X with minimal disruption.Build, deploy

We are looking for an experienced Java Developer to join a Front Office Rates eTrading team. Proven experience as a Pricing Developer or similar role in a trading environment.

Job Title: Senior Data AnalystSalary: £35,200 - £45,700Location: Cambridge, Hybrid (2 days per week working from the office are expected)Contract: Permanent, Full Time (35 hours per week) Do you have strong analytical abilities and advanced data manipulation skills?Are you familiar with a range o

Plus, an additional overtime pay of 1.Hours: 40 hours per week on a rotational basis (rota provided 4 weeks in advance).Shift Patterns: 2 – 3 shifts per week (Typical shift pattern is 2 on 4 off.Are you a dedicated, compassionate person looking for an exciting new career within Residential Care? A

Experience, qualification, and soft skills, have you got everything required to succeed in this opportunity Find out below.As a Bank Care Assistant at a Barchester care home, you'll help residents enjoy each day by making sure they get the quality care and support they deserve.You'll assist with dai

As a Healthcare Assistant on our bank you’ll be on a zero hour contract, giving you the freedom to choose which shifts you want to work each week.

Occupational sick pay after 12 month's service (for those on contracted hours only and subject to qualifying period).

Are you a naturally caring experienced Healthcare Support Worker in the UK, looking for your career to be fulfilling, where you’re valued, recognised and supported?.Do you have the right skills and experience for this role Read on to find out, and make your application.If you want to make a positi

Scroll down the page to see all associated job requirements, and any responsibilities successful candidates can expect.As a Care Assistant at a Barchester care home, you'll help residents enjoy each day by making sure they get the quality care and support they deserve.You'll assist with daily living

Senior Software Engineer - Westerleigh Business Park, 3 Turner Dr, Bristol, Company DescriptionAt SBS, we’re more than just a technology company – we’re a global fintech partner helping banks and financial institutions transform, innovate, and grow.With over 5,000 employees worldwide and clien

Location: On site in Gloucester or Central London 5 days a week.Due to security vetting requirements candidates must be UK nationals or sole British citizens with no dual nationality and resided in the UK 10 years or over.At DXC Technology, delivering excellence for our customers and colleagues is m