52 senior software engineer jobs found

Contract Senior Embedded Software Engineer Rate: up to £60pphr + VAT, outside IR35 Location: East Sussex (Hybrid: 2 days onsite, 3 days remote) Our client, a well-established and financially secure engineering organisation, is seeking a Senior Embedded Software Engineer to join their expanding development team click apply for full job details

Senior Backend Engineer (TypeScript / GCP) London (2 days hybrid onsite presence), 6 Month Contract, Outside IR35 We’re working with a high-growth fintech platform undergoing a major phase of product expansion. They are looking for Senior Backend Engineers to join an established team and contribute immediately to delivering production ready features across new product lines. This is a hands-on build role, ideal for engineers who are comfortable joining an existing codebase and shipping value from the first few weeks. What You’ll Be Doing Building and delivering end-to-end backend features in a live production environment Writing production-quality code (tested, observable, scalable) Contributing to technical design decisions within your workstream Collaborating closely with engineers via code reviews and shared standards Taking full ownership of services, including debugging and ongoing improvements Tech Stack (Must-Have) TypeScript (Node.js /...

🚀 Principal Engineer (Contract) – Insurtech | £600/day Outside IR35 I’m working with a high-growth Insurtech scale-up looking for a Principal Engineer to lead a major platform modernisation. 💰 Up to £600/day (Outside IR35) 📆 Initial 2-month contract (strong extension potential) ⚡ One-stage interview – moving fast The role: Own and shape architecture for large-scale, cloud-native systems Drive platform modernisation and technical strategy Mentor senior engineers and influence multiple teams Bridge business goals with technical delivery Tech: Golang, modern backend systems AWS (Lambda, DynamoDB) + exposure to Azure Terraform / IaC, containers Bonus: .NET, TypeScript, React This is a high-impact role in a business investing heavily in its next growth phase. 👉 Interviews are happening now – apply ASAP or message me directly to discuss.

Senior Embedded Software Engineer (Contractor) Contract   Employment Type: Contract (Ltd) Company Description General Dynamics Mission Systems engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of more than 13,000 top professionals, we partner with the best in industry to expand the bounds of innovation in the defence and scientific arenas. In the UK, we are leading the way in avionics and communication systems. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. General Dynamics in St Leonards-on-Sea currently provide avionic mission computing systems for a wide range of military fast jets, helicopters, and UAV’s. Recent success has resulted in General Dynamics developing the next generation of Advanced High Performance, Safety Critical...

Description We are seeking a passionate Software Engineering Manager with a strong background in modern frontend engineering, particularly React, Next.js, and TypeScript, to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams -designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a best-in-class frontend engineering capability, establishing modern development practices and building scalable, high-performance web applications. This is an initial 6-month contract (outside IR35) requiring 3 days per week onsite in Paddington, London. Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of frontend engineers specialising in React, Next.js, and TypeScript. Foster a culture of collaboration, technical excellence, and...

Full job description Description We are seeking a passionate  Software Engineering Manager  with a strong background in  modern frontend engineering , particularly  React, Next.js, and TypeScript , to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams—designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a  best-in-class frontend engineering capability , establishing modern development practices and building scalable, high-performance web applications. This is an  initial 6-month contract (outside IR35)  requiring  3 days per week onsite in Paddington, London . Requirements Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of  frontend engineers...

Description We are seeking a passionate  Software Engineering Manager  with a strong background in  modern frontend engineering  , particularly  React, Next.js, and TypeScript  , to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams—designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a  best-in-class frontend engineering capability  , establishing modern development practices and building scalable, high-performance web applications. This is an  initial 6-month contract (outside IR35)  requiring  3 days per week onsite in Paddington, London  . Requirements Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of  frontend engineers specialising...

Senior Software Engineer | £400-425/day | Outside IR35 | 6 Months | Fully Remote (UK based) I am currently working with a company who are looking for a Senior Software Engineer expert knowledge of databases. You will be responsible for scaling backend services, architecture, cloud-based solutions and API designs. Skills: ⚙️Typescript/ Node ⚙️PostgreSQL/ DynamoDB/ MongoDB ⚙️AWS ⚙️Lambda/Serverless ⚙️API Gateway ⚙️Cloudwatch Due to data sovereignty implications, the client cannot hire anyone that is outside of the UK. Interview: 2 stage Rate: £400-425/day Duration: 6 Months Outside IR35 They are looking to for someone to start on or before March 16th. Senior Software Engineer | £400-425/day | Outside IR35 | 6 Months | Fully Remote (UK based)

Description We are seeking a passionate Software Engineering Manager with a strong background in modern frontend engineering , particularly React, Next.js, and TypeScript , to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams—designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a best-in-class frontend engineering capability , establishing modern development practices and building scalable, high-performance web applications. This is an initial 6-month contract (outside IR35) requiring 3 days per week onsite in Paddington, London . Requirements Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of frontend engineers specialising in React, Next.js, and TypeScript. Foster a culture of collaboration, technical...

Description We are seeking a passionate  Software Engineering Manager  with a strong background in  modern frontend engineering , particularly  React, Next.js, and TypeScript , to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams—designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a  best-in-class frontend engineering capability , establishing modern development practices and building scalable, high-performance web applications. This is an  initial 6-month contract (outside IR35)  requiring  3 days per week onsite in Paddington, London . Requirements Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of  frontend engineers specialising in React, Next.js, and...

Senior Software Engineer | Java | AI | London | £500-£600/day About the Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This is a unique opportunity for a Senior Software Engineer to work at the cutting edge of AI-driven development. The Opportunity As a Senior Software Engineer, you'll join a small, innovative team modernising and simplifying critical legacy services using cutting-edge AI tooling. You'll demonstrate what's possible when AI is deeply integrated throughout the software development lifecycle, working with the latest AI technologies including Claude Code, GitHub Copilot, MCP, LLMs. Senior Software Engineer will: Develop and maintain software applications using Java Implement AI solutions to enhance software functionality and accelerate development workflows Collaborate with cross-functional teams to define,...

Senior Software Engineer (Contract) 6-Month Engagement | Outside IR35 | Up to £475 per day | Hybrid (London / Ipswich) A rapidly expanding SaaS company is seeking an experienced Senior Software Engineer to support their agile delivery team on an initial 6-month contract. This position offers a strong mix of hands-on development and strategic input, with the opportunity to shape system architecture, influence engineering practices, and contribute directly to product evolution. You'll play a key role in designing, building, and improving scalable cloud-native applications, while also guiding team members and promoting high standards across the development lifecycle. Core expertise required: Advanced experience with C# and .NET (Framework and Core) Frontend development using TypeScript, HTML, CSS, and either React or Vue Proven track record with AWS, ideally including serverless architectures (e.g., Lambda) Experience with CI/CD pipelines and Infrastructure as Code...

About The Company Tiro Partners Limited is a leading recruitment agency specializing in connecting talented professionals with top-tier organizations across various industries. Renowned for our commitment to excellence, we focus on delivering tailored staffing solutions that meet the unique needs of our clients. Our extensive network and industry expertise enable us to identify and attract high-caliber candidates, ensuring a seamless hiring process and long-term success for both clients and candidates. At Tiro Partners, we pride ourselves on fostering strong relationships, maintaining integrity, and providing exceptional service to support our clients' growth and innovation initiatives. About The Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This role offers a unique opportunity for a seasoned professional to work at the forefront of...

Senior Software Engineer | Java | AI | London | £500- £600/day About the Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This is a unique opportunity for a Senior Software Engineer to work at the cutting edge of AI-driven development. The Opportunity As a Senior Software Engineer, you 'll join a small, innovative team modernising and simplifying critical legacy services using cutting-edge AI tooling. You 'll demonstrate what 's possible when AI is deeply integrated throughout the software development lifecycle, working with the latest AI technologies including Claude Code, GitHub Copilot, MCP, LLMs. Senior Software Engineer will: Develop and maintain software applications using Java Implement AI solutions to enhance software functionality and accelerate development workflows Collaborate with...

Senior Java Engineer – Hedge Fund Contract Outside IR35 £1100 PD 2 month contract Hybrid Quant Capital is urgently looking for a Senior Java Engineer to join our high profile client. Our client is a well known Systematic Trading Hedge Fund. They like technology especially the opensource variety as well as scalability and robust performance (much like their track record). They currently run around £2 billion in liquid capital. The business has expanded continuously and is building a new risk engine for their systematic fund clients. This role will be working with a large distributed system (Built in Java) automating a large volume of realtime data into a portfolio management system. I am looking for a proficient developer with good data knowledge and an understanding of latency. I am looking for an engineer with strong core Java knowledge who is happy to learn risk. You should be happy to expand a data platform from scratch with some serious help on the...

MERITUS are recruiting for a Technical Architect to join our client supporting major Central Government programmes, delivering secure, high-quality architecture solutions across complex IT environments. TECHNICAL ARCHITECT - OUTSIDE IR35 - £800 PER DAY - 12 MONTHS - ANDOVER (2 DAYS ONSITE PER WEEK) - TWO STAGE INTERVIEW PROCESS - SECTOR: CENTRAL GOVERNMENT / DEFENCE (SC CLEARANCE REQUIRED) As a Technical Architect, you will play a key role in designing and delivering best-in-class solutions that meet both business and technical requirements. You will ensure architectural integrity, alignment to strategy, and adherence to security and regulatory standards across the full project lifecycle. You will collaborate with multidisciplinary teams, providing technical leadership and governance while driving innovation and continuous improvement across large-scale, complex systems. Key Responsibilities: Lead the design and delivery of large-scale or complex IT systems, ensuring...

MERITUS are recruiting for a Technical Architect to join our client supporting major Central Government programmes, delivering secure, high-quality architecture solutions across complex IT environments. TECHNICAL ARCHITECT - OUTSIDE IR35 - £800 PER DAY - 12 MONTHS - ANDOVER (2 DAYS ONSITE PER WEEK) - TWO STAGE INTERVIEW PROCESS - SECTOR: CENTRAL GOVERNMENT/DEFENCE (SC CLEARANCE REQUIRED) As a Technical Architect, you will play a key role in designing and delivering best-in-class solutions that meet both business and technical requirements. You will ensure architectural integrity, alignment to strategy, and adherence to security and regulatory standards across the full project lifecycle. You will collaborate with multidisciplinary teams, providing technical leadership and governance while driving innovation and continuous improvement across large-scale, complex systems. Key Responsibilities: Lead the design and delivery of large-scale or complex IT systems, ensuring...

Senior Infrastructure Engineer - Central London £550 - £600 p/d (outside IR35) 3 month initial term A leading construction engineering business is seeking a Senior Infrastructure Engineer to join their team. They are a well-established business about to enter a period of considerable operational change, including merger and acquisition activity, making it an exciting time to join and be part of their journey. Reporting into the Infrastructure Manager, you will oversee core infrastructure and networking. You 'll work closely with managed service providers to ensure seamless operations and business continuity, whilst taking a lead on regular site set-ups and supporting infrastructure integration across newly acquired entities. Key Responsibilities: * Lead and manage office and site networks, aligning with business strategy * Act as an escalation point for the Service Desk Team * Set up and configure Local...

MERITUS are recruiting for a Technical Architect to join our client supporting major Central Government programmes, delivering secure, high-quality architecture solutions across complex IT environments. TECHNICAL ARCHITECT - OUTSIDE IR35 - £800 PER DAY - 12 MONTHS - ANDOVER (2 DAYS ONSITE PER WEEK) - TWO STAGE INTERVIEW PROCESS - SECTOR: CENTRAL GOVERNMENT / DEFENCE (SC CLEARANCE REQUIRED) As a Technical Architect, you will play a key role in designing and delivering best-in-class solutions that meet both business and technical requirements. You will ensure architectural integrity, alignment to strategy, and adherence to security and regulatory standards across the full project lifecycle. You will collaborate with multidisciplinary teams, providing technical leadership and governance while driving innovation and continuous improvement across large-scale, complex systems. Key Responsibilities: Lead the design and delivery of large-scale or...

Lead Test Engineer £450 per day Outside IR35 6-month contract (initially) Remote working (UK-based) Skills and Experience: Proven experience as a Test Lead, QA Lead, or Senior Test Engineer in agile delivery environments Strong track record of defining and executing test strategies in fast-paced, pre-production settings Hands-on expertise in automated testing, with strong preference for Playwright Extensive experience in integration testing, API testing and system validation Practical knowledge of application security testing, including OWASP principles and security scanning tools Experience testing AI and machine learning products Strong understanding of modern software development and CI/CD practices Knowledge of accessibility testing and inclusive design principles Familiarity with WCAG 2.2 standards Experience using accessibility testing tools such as axe, WAVE or similar Opportunity to work on genuinely...