60 senior software engineer jobs found in Manchester

Senior Software Engineer - 3-month contract: Manchester/Hybrid Interviewing now for a Software Engineer for a 3-month project (outside IR35.) You will play an integral part of an agile team to enhance, build, and deliver products in a secure, stable, and scalable way. You will have previous experience in Java, Spring Boot, microservices architecture utilising DevOps practices. We operate a highly agile development approach, giving wide scope to be involved with hands-on system-design, test driven development, deployment, and operations. Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills Proficient with Java, Spring Boot, Microservices Architecture, whilst automating CI/CD pipelines for build, test and deployment. Cloud experience, implementing docker-based CI/CD pipelines, utilising Kubernetes. Please apply now to be considered Desired Skills and Experience Senior Software Engineer - 3-month contract:...

Senior Software Engineer - 3-month contract: Manchester/Hybrid Interviewing now for a Software Engineer for a 3-month project (outside IR35.) You will play an integral part of an agile team to enhance, build, and deliver products in a secure, stable, and scalable way. You will have previous experience in Java, Spring Boot, microservices architecture utilising DevOps practices. We operate a highly agile development approach, giving wide scope to be involved with hands-on system-design, test driven development, deployment, and operations. Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills Proficient with Java, Spring Boot, Microservices Architecture, whilst automating CI/CD pipelines for build, test and deployment. Cloud experience, implementing docker-based CI/CD pipelines, utilising Kubernetes. Please apply now to be considered

Senior Software Engineer - 3-month contract: Manchester/Hybrid Interviewing now for a Software Engineer for a 3-month project (outside IR35.) You will play an integral part of an agile team to enhance, build, and deliver products in a secure, stable, and scalable way. You will have previous experience in Java, Spring Boot, microservices architecture utilising DevOps practices. We operate a highly agile development approach, giving wide scope to be involved with hands-on system-design, test driven development, deployment, and operations. Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills Proficient with Java, Spring Boot, Microservices Architecture, whilst automating CI/CD pipelines for build, test and deployment. Cloud experience, implementing docker-based CI/CD pipelines, utilising Kubernetes. Please apply now to be considered

Senior Software Engineer - 3-month contract: Manchester/Hybrid Interviewing now for a Software Engineer for a 3-month project (outside IR35.) You will play an integral part of an agile team to enhance, build, and deliver products in a secure, stable, and scalable way. You will have previous experience in Java, Spring Boot, microservices architecture utilising DevOps practices. We operate a highly agile development approach, giving wide scope to be involved with hands-on system-design, test driven development, deployment, and operations. Type: 3 Month Contract Day Rate: Market Rates (Outside IR35) Location: Hybrid/Manchester Start: ASAP Skills Proficient with Java, Spring Boot, Microservices Architecture, whilst automating CI/CD pipelines for build, test and deployment. Cloud experience, implementing docker-based CI/CD pipelines, utilising Kubernetes. Please apply now to be considered

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...

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...

Location: London (once a month) Department: Engineering Employment Type: Contract - Outside IR35 Contract Length: 6 months (with potential for extension)   About YLD: Our goal is to help our clients keep moving forward. We work with them to build the skills and capabilities they need to stay ahead of the competition, and we know our success only happens when they succeed. We’re a team of curious, talented people, and we’re committed to making YLD a place where great people want to work, grow, and stay. We’re a remote-first consultancy specialising in software engineering, product design, and data. Our teams are based across London, Lisbon, and Porto, and we create digital solutions that continue to deliver value long after our work is done.   About the role: As a Senior Software Engineer at YLD, you’ll be part of a client team building innovative products. We’re looking for someone curious,...

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 Javascript Engineers (Contract) | UK based (Hybrid - Manchester) | £550–£600 per day (Outside IR35)   We're supporting a fast-growing digital business that's investing heavily in its engineering capability and is looking for an experienced Senior Node.js Engineer to join a high-performing product team.   This isn't a role for someone who only knows one language. They're looking for polyglot engineers who understand software engineering fundamentals and are comfortable working across different technologies to solve complex problems.   You'll be:   Building and evolving high-scale backend services with Node.js & TypeScript Designing clean, scalable and maintainable solutions Working closely with Product, Engineering and Platform teams Contributing to architecture and technical decision-making Writing high-quality, well-tested code Mentoring engineers and driving engineering best practice...

Senior Full Stack Java/Vue.js Engineer - Contract Location: UK - Fully Remote Rate: Up to £500 per day IR35: Outside IR35 Duration: 6 months initially I'm looking for an experienced Senior Full Stack Java/Vue.js Engineer to join a high-performing engineering team on an initial 6-month contract. This is a hands-on development role where you'll be working across both Back End and Front End technologies, contributing to the delivery and evolution of a complex, business-critical platform. The Role You'll be responsible for designing, developing and delivering high-quality software across the full technology stack, working closely with other engineers, architects and stakeholders to deliver robust and scalable solutions. The ideal candidate will be comfortable taking ownership of technical challenges, contributing to architectural decisions and working within an engineering environment where quality, reliability and security are critical. Key Skills & Experience...

About the job Senior Rust Engineer | Outside IR35 | Hybrid If you're a Rust Engineer who enjoys getting under the hood of complex systems and figuring out how things actually work, this could be an interesting one. iO Associates are working with a technology business on a new contract requirement for an experienced Rust Engineer . This isn't a standard backend build. You'll be working with a complex existing system that interacts directly with specialist physical hardware. A key part of the challenge will be reverse engineering the existing system , understanding how the different components interact and helping engineer what comes next. It's the sort of project that needs someone who enjoys investigating difficult problems rather than simply picking up predefined tickets. What you'll be doing Working hands-on with a complex Rust-based system Reverse engineering and understanding existing system behaviour Investigating how the software...

Senior Rust Engineer | Outside IR35 | Hybrid If you're a Rust Engineer who enjoys getting under the HOOD of complex systems and figuring out how things actually work, this could be an interesting one. iO Associates are working with a technology business on a new contract requirement for an experienced Rust Engineer . This isn't a standard Back End build. You'll be working with a complex existing system that interacts directly with specialist physical hardware. A key part of the challenge will be reverse engineering the existing system , understanding how the different components interact and helping engineer what comes next. It's the sort of project that needs someone who enjoys investigating difficult problems rather than simply picking up predefined tickets. What you'll be doing Working hands-on with a complex Rust-based system Reverse engineering and understanding existing system behaviour Investigating how the software interacts with specialist physical hardware...

Senior Rust Engineer Outside IR35 Hybrid If you're a Rust Engineer who enjoys getting under the hood of complex systems and figuring out how things actually work, this could be an interesting one. iO Associates are working with a technology business on a new contract requirement for an experienced Rust Engineer . This isn't a standard backend build. You'll be working with a complex existing system that interacts directly with specialist physical hardware. A key part of the challenge will be reverse engineering the existing system , understanding how the different components interact and helping engineer what comes next. It's the sort of project that needs someone who enjoys investigating difficult problems rather than simply picking up predefined tickets. What you'll be doing Working hands-on with a complex Rust-based system Reverse engineering and understanding existing system behaviour Investigating how the software interacts with specialist physical hardware...

Senior Android Engineer (Contractor) Location: Manchester city centre, 2 days/week onsite + remote 3 days/week Contract: Initial 3-4 month contract (strong likelihood of extension) Rate: £400-500 (Outside IR35) Start Date: Early October Overview Are you looking to make a genuine, visible impact in a short window rather than settle into a long slow ramp-up? This role offers exactly that. We're looking for an experienced Senior Android Engineer to join the Digital Engineering team of a well-known UK consumer brand, on a hands-on delivery contract supporting a significant new customer-facing proposition. The Android app is a modern, Kotlin-first, Jetpack Compose-only application built on multi-module clean architecture, with an established in-house permanent engineering team already in place. This is a genuine delivery role for someone who can get up to speed fast, ship high-quality software without unnecessary ceremony, and leave the codebase in a better state than they found...

🚀 Contract Senior Backend Developer – C# / .NET 📍 Central Liverpool – Hybrid, 2 days per week onsite 💰 £380 per day 📅 6-month initial contract ✅ Outside IR35   We're working with a growing technology organisation looking for an experienced Senior Backend Developer to join an established engineering team working on the continued development and modernisation of a large-scale software platform. This will be a backend-focused position , ideal for an experienced C#/.NET Engineer who enjoys building scalable, maintainable and well-tested services , while contributing to engineering standards and modern development practices.   💻 What you'll be doing Designing and developing backend services using C# / .NET Working extensively with SQL Server , including data modelling and performance optimisation Designing and developing RESTful APIs and integrations Building scalable services within a distributed...

Contract Senior Backend Developer - C#/.NET Central Liverpool - Hybrid, 2 days per week onsite £380 per day 6-month initial contract Outside IR35 We're working with a growing technology organisation looking for an experienced Senior Backend Developer to join an established engineering team working on the continued development and modernisation of a large-scale software platform. This will be a Back End-focused position , ideal for an experienced C#/.NET Engineer who enjoys building scalable, maintainable and well-tested services , while contributing to engineering standards and modern development practices. What you'll be doing Designing and developing Back End services using C#/.NET Working extensively with SQL Server , including data modelling and performance optimisation Designing and developing RESTful APIs and integrations Building scalable services within a distributed software environment Writing high-quality unit and automated tests...

Senior Javascript Engineers (Contract) | UK based (Hybrid - Leeds) | £550–£600 per day (Outside IR35)   We're supporting a fast-growing digital business that's investing heavily in its engineering capability and is looking for an experienced Senior Node.js Engineer to join a high-performing product team.   This isn't a role for someone who only knows one language. They're looking for polyglot engineers who understand software engineering fundamentals and are comfortable working across different technologies to solve complex problems.   You'll be:   Building and evolving high-scale backend services with Node.js & TypeScript Designing clean, scalable and maintainable solutions Working closely with Product, Engineering and Platform teams Contributing to architecture and technical decision-making Writing high-quality, well-tested code Mentoring engineers and driving engineering best practice...

QA Engineer - Automation Location: UK (Remote) Duration: 3 months + Rate: £256 per day Outside IR35 Looking to raise the bar on quality while keeping releases fast, stable, and genuinely trustworthy? Our Client is hiring a Senior QA Engineer - Automation to lead automated testing across API and broader quality layers, helping engineering teams build a culture where quality is part of everyday delivery. What you'll be doing: * Define and evolve the automation approach for your product area (API, UI, contract, component and more) * Design, develop, and maintain automation frameworks and scripts that scale across teams * Drive continuous improvement-making frameworks cleaner, faster, and easier for others to use * Integrate automation into continuous delivery pipelines and optimise stable, deterministic runs * Investigate flaky tests, eliminate root causes, and strengthen reliability standards * Provide meaningful reporting on real risks (not just raw figures) to QA...

QA Engineer 3 Month contract initially + Extensions Based: Remotely Rate -£250 - £300 p/d - Outside IR35 We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a number of QA Engineer's on a long term program of work. Key Responsibilities: * Functions as an individual contributor, working under moderate supervision with clearly defined objectives, guidelines, and expectations. * Follows established test plans and project guidelines, receiving day-to-day task direction and priorities from team leadership as needed. * Develops, updates, and executes test cases based on approved project requirements, functional specifications, and design documentation. * Performs comprehensive Software Quality Assurance activities, including but not limited to GUI, Back End, interface, batch, regression, automation...