107 software engineer jobs found

Senior Embedded Software Engineer – NVIDIA GPU / ARM / Python £500 to £550 per day - Outside IR35 Fully remote   Must be eligible to work in the UK and available immediately.   Strong Python and AWS experience Computer vision / video processing experience Experience running AI/ML inference on GPUs Experience developing software on NVIDIA GPU platforms, including CUDA/GPU compute and ideally camera/computer-vision workloads Video/camera pipeline experience Strong embedded experience ideally on ARM/Linux-based platforms Networking and video streaming experience Performance optimisation on constrained/edge hardware Comfortable deploying models or inference workloads onto edge devices Able to debug across software, GPU, camera and hardware boundaries Experience with Board Support Packages (BSPs) and embedded interface/device drivers Experience integrating BSPs and interface drivers with the OS on...

Embedded Software Engineer – IoT location: Kinsgton Upon Thames Rate: £60pphr + VAT, outside IR35 Onsite: 2-3 days per week onsite. Duration: 15 months Role Overview We are looking for an Embedded Software Engineer to develop firmware for connected IoT products, working closely with electronics, hardware, cloud and product engineering teams. Key Responsibilities Design, develop and maintain embedded firmware for IoT devices. Develop robust, efficient software primarily in C/C++. Work with microcontrollers, sensors, peripherals and communication interfaces. Develop and integrate drivers using SPI, I²C, UART, GPIO, ADC and PWM. Develop applications using RTOS or bare-metal architectures. Develop power-management strategies for battery-powered devices. Implement secure boot, device security and OTA firmware updates where required. Technical Skills Essential: Strong embedded C/C++ development experience. Microcontroller-based systems. Embedded debugging...

Software Engineer (PHP, Typescript, AWS), Remote £350 per day outside IR35 Key Skills Proficiency in PHP and Symfony framework, as well as Typsecript, Node and React AWS Services, with a focus on Fargate and DynamoDB Why Join Us? All developers progress to senior roles in a supportive, growth-focused environment with organic development! A fantastic team atmosphere and is a great place to work  

PLC Software Contractor Rate: £50.00 - £57.00p/h (Outside IR35) North Yorkshire Are you an experienced PLC Software Engineer with Siemens TIA Portal expertise and a background in Defence or regulated industrial environments, looking for a hands-on contract supporting a genuinely high-profile automation project? Do you enjoy working from specification through to implementation, validation and comm click apply for full job details

Software Engineer - Node & Typescript 12 month contract, Outside IR35 Remote £500 - £540 per day We're working with a FinTech company who are looking for 6 capable, self-driven Senior Software Engineer to help build and evolve their products Their technology already powers some of the UK's most ambitious fintechs, banks, financial advisers and wealth firms, with close to a million investors relying on their platforms. In this role you will design, build and operate reliable and scalable, testable and maintainable software solutions, building new functionalities and products using Typescript and Node.js. As this is a senior level role you will be expected operate confidently with clients and senior stakeholders What we're looking for Strong commercial experience with Node.js, specifically TypeScript Experience with Amazon Web Services Experience with Serverless products Experience with document databases, ideally MongoDB Experience mentoring engineers...

Software Engineer — HealthTech & AI 6 month contract, Outside IR35 Remote - once a quarter onsite in Dublin €380 - €400 per day We’re working with a HealthTech company who are looking for a capable, self-driven mid-to-senior Software Engineer to help build and evolve healthcare technology products They are building software that supports clinical workflows and healthcare communications. Its existing products help healthcare organisations manage and streamline clinical referral and order-communication processes, with a particular focus on diagnostic workflows. The company is also developing AI-driven products for clinical workflows, using technologies such as LLMs, AI APIs and workflow orchestration to automate or improve parts of clinical processes You’ll work across established clinical communications products while also contributing to a growing portfolio of AI-driven solutions for clinical workflows. This is a hands-on, generalist role where you’ll take...

Software Engineer – Data Platform | Contract   Outside IR35 | £600>£800/day | 6 months initially | London / Hybrid TypeScript | Python | Airflow | Azure | Node.js | AI/ML   We're looking for a couple of experienced engineers with a blend of software and data engineering skills for an initial 6-month contract, working across the data platform behind a global investment product.   The challenge is messy, fragmented investment data coming from multiple external systems, administrators and formats.   The assignment spans the full journey of that data: ingesting it, modelling and reconciling it into a reliable data layer, then building the APIs that make it available across the wider product.   The project:   There's a significant amount of engineering work underway across the data platform, with contractors being brought in to help deliver across pipelines, data models, storage and access...

Principal Software Engineer – Testing Architecture & Engineering Quality 📍 London (1 day/week) | 💰 £750/day Outside IR35 (Flexible) | 📅 12-Month Initial Contract Shape the Future of Engineering Quality at a Leading Investment Bank A leading investment bank is looking for an exceptional Principal Software Engineer to define and build the future testing architecture across its strategic Global Markets Front Office trading platform. This is a highly technical Principal Software Engineering position - not a QA, Test Analyst or traditional SDET role. The successful candidate will join a team with an exceptionally high technical bar. We're looking for someone who thinks like an architect, writes production-quality code, and enjoys solving complex engineering problems through frameworks, tooling and platform design rather than feature development alone. You'll define the engineering foundations that underpin software quality across the organisation -...

Senior C# / Azure Engineer – £600/day Outside IR35 Contract: Initial contract Rate: Up to £600 per day IR35: Outside IR35 Location: UK – Hybrid Office: 1–2 days per week Start: ASAP / immediately available strongly preferred We are currently recruiting for a Senior C# / Azure Engineer to join an established engineering team of approximately 40 people. This is a hands-on engineering role for someone with strong experience building cloud-based, distributed and event-driven systems using C#, Azure and modern integration technologies. Key Skills Strong commercial experience with C# / .NET Strong Microsoft Azure experience Apache Kafka / event streaming REST APIs and service integration Event-driven architecture Distributed systems Scalable backend services Angular / frontend experience is a nice-to-have The Role You will work as part of a collaborative engineering team, developing and integrating modern cloud-based services...

Contract Java Engineer | iGaming | Up to £500 per day | Outside IR35 | 6 months | Fully Remote (UK)   We're looking for experienced Java Engineers to join a long-term contract with a product-focused engineering team, building and enhancing scalable, cloud-based applications in the iGaming industry.   This is an excellent opportunity to work on modern Java services within an agile environment, collaborating with talented engineers to deliver high-quality software.   What you'll be doing Designing, developing and maintaining Java applications and microservices. Building scalable, resilient, and high-performing backend systems. Collaborating with cross-functional teams in an agile delivery environment. Writing clean, maintainable, well-tested code. Contributing to technical discussions, architecture and continuous improvement.   What we're looking for Strong commercial experience with Java ....

Full Stack Engineer (React / TypeScript / Python) - AI Native Team KEY POINTS Fully remote within the UK Up to £500 per day, outside IR35 Six month initial contract with the intention of going permanent Early Series A startup, five people, you would be the second engineer Building an agentic AI platform, and building it with agentic AI Claude Code or Copilot at a proper agentic level is a genuine requirement React and TypeScript front end, TypeScript or Python back end Start needed ASAP ABOUT THE ROLE AND WHO YOU WOULD WORK FOR An early Series A startup building a production intelligence platform for video content. Not another content generation tool. Content creation is a solved problem, and what they are building sits around it, taking a production from the initial brief all the way through to the finished deliverable. Advertising is the starting market, with the same model applying to production more widely after that. The platform is agentic at its core, and...

Robotics Software Engineer Contract Details Status : Outside IR35 Location : Hybrid in London   In this role, you will take ownership of features across the full robotics stack, working directly with ROS 2 Jazzy, writing clean Python and C++ services, and diagnosing complex real world edge cases directly on physical production machinery.   Key Deliverables Build modular, testable, and well documented subsystems across the full robotics stack in ROS 2 Jazzy. Diagnose system issues, replicate bugs, and test features hands on directly with microfactory hardware and physics based simulations. Implement targeted, production grade solutions to resolve edge cases in autonomous cell operations. Participate in code and design reviews, improving developer tooling and automated testing practices.   Required Experience Demonstrable track record shipping and maintaining production software in commercial...

iO Associates are working with a UK-based company building mission-critical AI systems. They're looking for a Senior AI Engineer to join on a contract basis and build agentic AI systems in production, including secure deployments. Job Title: Senior AI Engineer Location: UK (Hybrid - occasional on-site in the South of England) Contract Length: Initial 6 months IR35: Outside IR35 Rate: Dependent on experience Start: Immediate Key Responsibilities Build agent-based AI systems end-to-end. Cover orchestration, state, and tool calling. Engineer for production. Focus on tests, reliability, latency, and failure handling. Use LLMs and vision-capable models in real workflows. Include retrieval, reasoning, summarisation, and task execution. Deploy across cloud and restricted environments. This includes on-prem and occasional offline use. Set up evaluation and monitoring. Leave clear documentation for handover. Experience & Skills Required Senior software...

Senior Applied AI Engineer – Private Sector Location: Harwell, Oxfordshire – Hybrid (2 days per week on site, remainder remote) Contract: 6 months initially, with strong potential for extension Day Rate: £700–£900 per day, depending on experience IR35: Outside IR35 Start Date: Immediate About the Role We are working with a fast-growing UK frontier technology company developing advanced AI systems for organisations operating in complex, high-stakes environments. The business is looking for a Senior Applied AI Engineer to take genuine technical ownership of the design and delivery of production-grade agentic AI systems. This is a builder's role rather than an integration role . You will design and implement sophisticated AI systems from the ground up, make architecture-level decisions, write production-quality software and own features through to deployment. The focus is on turning rapidly evolving AI capabilities into reliable, scalable systems that deliver...

iO Associates are working with a UK-based company building mission-critical AI systems. They’re looking for a Senior AI Engineer to join on a contract basis and build agentic AI systems in production, including secure deployments. Job Title: Senior AI Engineer Location: UK (Hybrid – occasional on-site in the South of England) Contract Length: Initial 6 months IR35: Outside IR35 Rate: Dependent on experience Start: Immediate Key Responsibilities Build agent-based AI systems end-to-end. Cover orchestration, state, and tool calling. Engineer for production. Focus on tests, reliability, latency, and failure handling. Use LLMs and vision-capable models in real workflows. Include retrieval, reasoning, summarisation, and task execution. Deploy across cloud and restricted environments. This includes on-prem and occasional offline use. Set up evaluation and monitoring. Leave clear documentation for handover. Experience & Skills Required Senior software...

Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. This is a hybrid role based in Central London, requiring three days per week in the office. The successful candidate will play a key role in delivering a business-critical application, working with modern technologies including Azure, React, Node.js and SQL while collaborating closely with both technical teams and business stakeholders. Key Responsibilities: Lead the development of an established Corporate Governance platform from prototype through to production. Design, develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive front-end applications using React and TypeScript. Build and maintain back-end services using Node.js. Deploy and support applications...

Go/TypeScript Developer Manchester | Hybrid Outside IR35 £450-£475pd 6 months We're hiring a Senior Software Engineer to join a growing SaaS/FinTech technology business in Manchester. This is an opportunity to work on a modern, cloud-first platform that sits at the heart of complex B2B customer operations. You'll join a collaborative engineering team building scalable workflow and automation technology, while helping evolve established systems into the next generation of cloud-native products. We're looking for an experienced engineer who enjoys solving complex problems, improving how software is built and operated, and using modern engineering practices and tooling to deliver better products faster. The Role As a Senior Software Engineer, you'll design, build and maintain scalable B2B SaaS solutions, with a particular focus on workflow, automation and cloud-native engineering. You'll work across the software life cycle, from technical design and API development through...

Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. This is a hybrid role based in Central London, requiring three days per week in the office. The successful candidate will play a key role in delivering a business-critical application, working with modern technologies including Azure, React, Node.js and SQL while collaborating closely with both technical teams and business stakeholders. Key Responsibilities: Lead the development of an established Corporate Governance platform from prototype through to production. Design, develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive Front End applications using React and TypeScript. Build and maintain Back End services using Node.js. Deploy and support applications...

🚀 Contract Software Developer – C# / Golang / SQL 📍 Manchester – Hybrid (2 days per week onsite) 💰 £500–£520 per day 📅 6-month initial contract ✅ Outside IR35   We're working with a major technology-led organisation looking for an experienced Software Developer to join a high-performing engineering team responsible for a real-time, high-volume transactional platform .   This is a hands-on development role working across backend services, microservices and data-intensive applications in an environment where performance, reliability and scalability are critical . The core technology stack includes C#/.NET, Golang and SQL Server , with the wider environment incorporating Windows applications, microservices, Kafka, Linux and cloud/web technologies.   🛠️ What you'll be doing Developing highly efficient, robust and maintainable applications and backend services Building and enhancing...

Data Engineer – Contract Position – HIRING ASAP Location: Remote Working Start Date: ASAP Duration:  12-Month Contract Daily Rate: £450 - £600 per day outside IR35 Summary Our client is building a Law Firm Digital Twin: a working simulation of how a law firm operates, built from the firm's own data. Data from the firm's operational systems (practice management and finance, HR, client onboarding, time recording) is mined into event logs; a discrete event simulation is built and calibrated from those logs; and the firm's financial statements are reconstructed on top, so the effect of an operational change can be quantified before it is made. The stack spans three layers: data pipelines and a cloud warehouse (Snowflake), a simulation and statistical modelling core in Python, and a TypeScript product (Next.js, React, Postgres). This role owns the data layer: the pipelines that turn raw system data into the event logs and modelling-ready...