Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Refine by IR35 Status
Unknown Status 44 Inside IR35 30 Outside IR35 14
Refine by Categories
Information Technology 39 Engineering 34 Construction 5 Automotive 2 Marketing 2 Media-Journalism 2
Science 2 Customer Service 1 Education 1 Finance 1 Management 1
More
Refine by Job Type
Contractor 88
software development engineer

88 software development engineer jobs found

CL
May 01, 2026  
Software Development Test Engineer - Automotive
Our premium brand Automotive client is currently recruiting for the following role: Software Development Test Engineer - Automotive - £58/hr (Inside IR35) - Manchester Centre (hybrid potential) - 12 Months (potential for yearly renewal) Duties: Developing software to test multiple types/categories of software including end-user applications and operating systems/utility software (which provides a platform for running end user applications for external customers). The work includes: - Developing and directing the preparation and execution of comprehensive test plans, quality assurance plans, procedures, and schedules - Planning and conducting software testing (including using programming languages to write code for use in testing the application/software code), performing analysis of test results, and tracking/reporting risk levels during test execution - Performing regression and ad-hoc testing of software and components potentially affected by system changes - Diagnosing...
IR35 Status:
Inside IR35

CV-Library Manchester, UK Contractor
CL
May 08, 2026  
Data Engineer
Role Title / Position: Data Engineer III Type : Contract Duration:12 months Location: Bromley or Chester Job Description: Required qualifications : • Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence • Experience working on and delivering end to end projects independently • Experience building/operating highly available, distributed systems of data extraction, ingestion, and processing of large data sets • Experience with data modeling, warehousing and building ETL pipelines • Experience in at least one modern scripting or programming language, such as Python, Java, Scala, or NodeJS • Experience as a data engineer or related specialty (e.g., software engineer, business intelligence engineer, data scientist) with a track record of manipulating, processing, and extracting...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
CL
May 08, 2026  
Full Stack Developer
Full Stack Software Engineer (Angular/TypeScript/Java) * 6 month contract * Outside IR35 * Remote Working * Market Rates (c£325 per day) The Opportunity: We’re looking to bring in a Full Stack Software Engineer with strong experience in TypeScript and experience of Java. This role is ideal for someone who can join an existing project and take ownership of transforming requirements into production-quality solutions. The focus will be on full-stack development, with Angular Typescript (Frontend) as a key area of expertise and Java (Backend) forming the supporting foundation. Skills and Experience: * Strong hands-on experience with TypeScript in Angular. * Design, build and maintain backend services using Java. * Familiarity with version control (Git), CI/CD, and cloud-based environments. * Experience working in early-stage or agile teams with high autonomy. * Strong analytical thinking and problem-solving ability. Key Responsibilities: * Collaborate...
IR35 Status:
Outside IR35

CV-Library United Kingdom Contractor
CL
May 08, 2026  
Engineering Manager
Are you looking for a senior leadership role where you can influence standards, drive design quality, and shape the future capability of a growing water engineering function? Have you led multi-disciplinary teams delivering regulated water industry designs, taking accountability for technical quality, compliance, and on time delivery? Are you a Chartered Engineer (or close to chartership) with extensive experience approving and managing complex water design packages? The Opportunity This role is available on a contract basis (outside IR35) and they are also recruiting for this position on a permanent basis, offering a salary of £75,000–£90,000 per year plus benefits, depending on experience and working arrangements. This opportunity has arisen due to continued growth and expansion within a well established engineering design consultancy delivering critical projects across the regulated water sector. With a strong and growing workload, the team is strengthening its...
IR35 Status:
Outside IR35

CV-Library Stretford, Manchester, UK Contractor
CL
May 08, 2026  
Principal Software Quality Engineer
Principal Engineer - Software Assurance £65.98 p/hr - Inside IR35 12 months Defence 1-2 days a month on site, Coventry, Barrow, Frimley or Weymouth Our complex platforms are increasingly driven by Software, assuring the quality of this and the proper integration is critical to our success. Software assurance is the ongoing process to ensure that software products meet and comply with software engineering, quality and safety standards. It is a systems engineering activity that that supports the achievement of functional and multiple non-functional requirements and is applicable to the whole engineering lifecycle from concept design to in service support. This is a growing role within our business and industry with significant potential for development and further growth. We expect the candidate to quickly develop an understanding of the development, use and control of software in our complex and unique application. Being actively involved in the decision making and problem...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
May 08, 2026  
Senior Test Engineer - Lead
I am recruiting for a Senior Test Engineer to be based in Leeds, Birmingham, Manchester or Newcastle-Upon-Tyne 3 days per week, 2 days remote. Candidates must live close to one of the above sites. The role falls inside IR35 so you will have to work through an umbrella company for the duration of the contract. The Senior Test Engineer will have extensive Typescript and automation (functioning) experience. The candidates must have demonstrable leadership skills in driving change and will have managed/led a team. Your team leading experience must be clearly visible on your profile. Candidates will also have experience of non-functioning testing - either performance or accessibility. You will have a number of years of experience in software testing, with a focus on manual testing and test automation. You must be proficient in Java, Typescript and Javascript, with the ability to write and maintain test automation scripts. This experience must have been used in your most recent...
IR35 Status:
Inside IR35

CV-Library Leeds, West Yorkshire Contractor
CL
May 08, 2026  
Embedded Software Engineer
Embedded Software Engineer Whiteley (Hybrid) – SC Required – Initial 6 month contract (Inside IR35) About the Opportunity We are recruiting on behalf of a technology organisation that specialises in the research, design, and development of advanced wireless and critical RF communication systems used in mission-critical environments including defence, uncrewed and autonomous systems, government, and broadcast. They are seeking an Embedded Software Engineer to join their team working on a varied pipeline of technically challenging projects. The successful candidate will develop software for sophisticated communication products that deliver secure, reliable, long-range data transmission, collaborating closely with hardware, RF, and systems engineers and contributing across the full product lifecycle. Key Responsibilities * Design, develop, and maintain embedded software for advanced wireless communication products. * Program primarily in C++ for embedded applications. *...
IR35 Status:
Inside IR35

CV-Library Whiteley, Hampshire Contractor
CL
May 08, 2026  
Senior Mechanical Engineer (contract)
Senior Mechanical Engineer Basildon, Essex (1 day/week on site) £53ph (Inside IR35) Initial 6 month contract **Please note we can only consider sole UK Nationals for this role** We are currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes. What you'll do as a Senior Mechanical Engineer: Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM...
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
May 08, 2026  
Embedded Software Engineer (Qt)
The Role We are looking for an Embedded Software Engineer to join a growing development team working on advanced systems and user interfaces. You will be involved in the full software lifecycle, from design and development through to testing and deployment. This role will suit someone with strong C++ skills and experience working on embedded or real-time systems, with exposure to Qt-based UI development. Key Responsibilities * Design, develop and maintain embedded software using C/C++ * Work on Linux or RTOS-based systems * Develop user interfaces using Qt / QML * Interface with hardware and peripherals (e.g. CAN, UART, SPI, I2C) * Debug and optimise real-time systems * Collaborate with cross-functional teams including hardware and systems engineers * Contribute to system design, architecture and code reviews Required Skills & Experience * Strong experience in C++ (and/or C) * Experience working in embedded or real-time environments * Knowledge...
IR35 Status:
Unknown Status

CV-Library Stafford, Staffordshire Contractor
CL
May 07, 2026  
Embedded Software Engineer
Rullion are looking to recruit for the following role: Embedded Software Engineer Location @: Oxford ,Eyensham UK ASAP Start Duration : 12 months 37 hours per week Monday To Friday Inside IR35 £35++++ Per hour Hybrid Key Requirements Extensive experience in embedded C development on STM32 (ARM Cortex) using Keil IDE. Strong expertise in multithreaded RTOS systems, including thread synchronization, and debugging. Proven ability to analyse, maintain, and optimise existing codebases, with focus on performance and resource efficiency. Solid understanding of embedded file systems and data transfer. Experience of conducting code reviews and contributing to design improvements and practical optimisations. Comfortable working independently, self-directed, and able to demonstrate clear progress. Desirable Skills Experience with CAN, SPI, RS232 communication protocols. Familiarity with software V&V, Git-based workflows, and Agile/DevOps environments. Python for tooling or test...
IR35 Status:
Inside IR35

CV-Library Oxford, Oxfordshire Contractor
CL
May 07, 2026  
Senior Embedded Systems Engineer - Linux - Xilinx - Video
Senior Embedded Systems Engineer (Linux, Xilinx, Video) High Wycombe / Thames Valley area (Hybrid) – 6 – 12 month contract For more details contact Adam Mayne, (url removed)  (phone number removed)    We are seeking a highly experienced Embedded Linux specialist to work with a cutting‑edge engineering team developing custom Xilinx‑based platforms. This is a hands‑on role focused on board and system bring‑up, sitting at the boundary between FPGA, boot chain, Linux BSP, and video/display integration, rather than application‑level software.    You will work closely with FPGA and hardware engineers in a lab environment, helping to drive early hardware platforms through bring‑up and into a stable development or product state. The position suits a senior consultant or engineer who enjoys low‑level debugging, hardware/software integration, and solving complex system‑level problems.    Rate is negotiable depending on experience.    Responsibilities of Senior Embedded Systems...
IR35 Status:
Unknown Status

CV-Library High Wycombe, UK Contractor
CL
May 07, 2026  
Cloud Infrastructure Engineer
SC Cleared Cloud Infrastructure Engineer Location: London (Hybrid) Start Date: ASAP Duration: 7 - 12 months IR35: Inside (via Umbrella Company) Key tasks for the Cloud Infrastructure Engineer to include: Leading financial house are seeking a seasoned SC Cleared Cloud Infrastructure Engineer to join an existing team where you will with the ongoing improvement of their technology stack, ranging from complex cloud-hosted applications utilizing IaC and full CI/CD automation, to more traditional VM-based on-premise systems. Cloud Infrastructure Engineer Technical Skills: • SC Clearance / Security Clearance (ideally valid & transferrable) • Proven experience in AZURE Terraform code • Demonstrable experience in GitHub Actions • Experience of working in a controlled environment with strict change control • Good understanding and practical implementation of both CI and CD • Good working knowledge of the installation and configuration of Windows based systems. • Excellent...
IR35 Status:
Inside IR35

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
May 07, 2026  
Senior Automation Engineer Contract Dublin 6-18 Months
Senior Automation Engineer Contract Dublin 6-18 Months. My client a leading global firm is in urgent need of talented and experienced Senior Automation Engineer to join them on a contract basis. My client is looking for a highly motivated and proactive Senior Quality Engineer to support the delivery of complex, mission‑critical software solutions across the my clients Payments application platform, spanning API, Web, Mobile, Batch, and SWIFT channels. You will be expected to design, develop, execute, and maintain automated and manual test suites across Smoke, Integration, System, UAT, and Regression testing. You will build, execute, and maintain UI and API automation using Java, Selenium, andREST Assured. You will lead and participate in test planning, test case reviews, and collaborate with Developers, Product Owners, SMEs, and business stakeholders to define clear acceptance criteria. Successful candidates will 8+ years of commerical experience in Quality Assurance / Quality...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
May 07, 2026  
Lead Technical Specialist RF Engineer
OUTSIDE IR35 CONTRACT Duration - 9-12 Months ECS Resource Group are currently working in partnership with a global managed service provider, assisting them with the search for a Lead Technical Specialist RF Engineer on a contract basis. Key Responsibilities Act as a technical advisor throughout the sales cycle, supporting customer engagement and delivering solution designs, bills of materials, and technical documentation Partner with business leaders and sales teams to support strategy execution through technical guidance, coaching and mentorship Collaborate with internal technical resource teams to efficiently deliver project outcomes and improve turnaround times Maintain current knowledge of system architectures and emerging technologies to provide relevant, customer-focused solutions Build and manage relationships with technology partners and vendors to support solution development and market positioning Deliver technical presentations, training sessions, and participate in...
IR35 Status:
Outside IR35

CV-Library Uxbridge, London Contractor
CL
May 07, 2026  
Senior Mechanical Engineer
6 month contract (initially) Up to £55.56 per hour umbrella (Inside IR35) Hybrid working (circa 1 day per week on site with a need to be flexible where required) Job Role: Our client is currently looking for a Senior Mechanical Engineer to join the Precision Guidance Integrated Project Team (IPT), working on equipment for the next generation of Missile Seeker Programmes. The successful candidate will be experienced in the Aerospace and/or Defence Industry and preferably hold SC Security status. The Mechanical Engineer role offers hybrid working, with the option of on-site working at our Basildon office. The frequency of on-site visits shall be agreed with the project team to ensure that key Milestones and Deliverables are met on time, to budget and to the desired quality. Key Responsibilities: Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international...
IR35 Status:
Inside IR35

CV-Library Basildon, UK Contractor
CL
May 02, 2026  
Senior Mechanical Engineer
Senior Mechanical Engineer Basildon 6-Month Contract Paying up to £55p/h (Inside IR35 Key Responsibilities Support senior members of staff in the delivery of technical solutions on critical Business Programmes. Generation of mechanical solutions to relevant company and international standards. Design of engineering solutions taking into account all requirements including product quality, safety, reliability, testability, sustainability, etc. Mechanical engineering detailed design, including numerical calculations, tolerance studies, etc. Produce Manufacturing Data Packs in line with BS8888 including appropriate application of GD&T. Generate BoM within approve PLM system (Teamcenter). Contribute to reviews of Mechanical designs in accordance with business and industry standards. Deliver design solutions against Technical Requirements, within budget and timescales. Essential Skills & Experience Mechanical or Science degree qualified, or equivalent, with experience....
IR35 Status:
Inside IR35

CV-Library Basildon, Essex Contractor
CL
May 02, 2026  
Senior Civil Engineer
A well-established, design-led civil engineering consultancy is looking to appoint an experienced Contract Senior Civil Engineer on a long-term, Outside IR35 basis. This is a fully remote role with a strong pipeline of secured work across commercial, industrial and data centre developments. The Role You’ll take ownership of infrastructure packages from concept through detailed design, with a particular focus on: Detailed levels strategy Surface & foul drainage design Drainage slope design and optimisation External works coordination Technical delivery for planning and construction stages Projects include large commercial schemes, industrial developments and major data centre infrastructure. Software MicroDrainage (essential) What We’re Looking For Proven UK development infrastructure experience Strong background in commercial / industrial schemes Confident working autonomously in a remote environment Able to deliver technically sound, buildable drainage and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 02, 2026  
Interim Electronic Test Engineer
The Interim Electronic Test Engineer will support and lead all validation programs for electronic components/products, validating to key product specifications, supporting customers in the areas of research and development, new product introduction and VA/VE programs. Client Details The organisation is a well-established entity within the industrial and manufacturing sector, offering innovative engineering solutions. As a mid-sized company, they are committed to maintaining high standards and delivering excellence in their field. Description The interim Electronic Test Engineer responsibilities will include: Support preparation & selection of validation plans for electronic components based on the product specification. Execute multiple, complex, long duration tests designed to stress micro-electronic circuitry both thermally and mechanically. Support root cause analysis when failure mode is detected. Responsible for maintaining and setting up Laboratory tests to company...
IR35 Status:
Inside IR35

CV-Library Dewsbury, West Yorkshire Contractor
CL
May 02, 2026  
C# / .net Software Engineer
C# / .net Software Engineer Milton Keynes - first few days for training then 1 site visit a month 6 Months Contract £550 per day We are looking for an experienced C# Software Engineer to join the team and support us on our journey in transforming our application landscape to provide a modern, cloud hosted finance platform. This exciting opportunity offers the chance for you to work for a fantastic brand and to help shape our digital future. About the role As a key part of the scrum team, you will help to shape the company's core products, working on green and brownfield solutions using the latest technologies. You will play an important role in the product lifecycle, contributing to design, from development through to delivery. About you We are looking for a good communicator and strong team player with skills aligned to our tech stack. We would expect you to have strong experience in most of the following: Tech Stack C# .Net Core Typescript React Web API Kubernetes /...
IR35 Status:
Unknown Status

CV-Library Milton Keynes, Buckinghamshire Contractor
CL
May 02, 2026  
Principal EC&I Engineer
Principal EC&I Engineer Whitehaven (Hybrid - 2-3 days per week in office) Contract - 12 Months Rate - £65 per hour We are seeking an experienced Principal EC&I Engineer to lead the design, development, and delivery of EC&I solutions across complex, safety-critical projects. This role is heavily design-focused, requiring ownership of electrical power system studies, protection design, and technical assurance, ensuring all outputs meet regulatory, safety, and engineering standards. Key Responsibilities Design Leadership & Delivery Lead the design and development of EC&I systems, ensuring solutions are technically robust, compliant, and fit for purpose. Own and maintain the electrical power system model (ETAP or equivalent) to support design development and validation. Produce and review key design deliverables including: Fault level calculations, Protection coordination studies, Arc flash risk assessments.  Ensure all designs align with relevant standards,...
IR35 Status:
Unknown Status

CV-Library Whitehaven CA28, UK Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software