Principal Software Developer Jobs in UK

Toshiba Global Commerce Solutions is seeking a hands-on Principal Software Architect to lead end-to-end solution delivery for major retail platforms.In this role you will own architecture leadership (design trade-offs governance) active implementation (mentoring code reviews select hands-on features...

GSK remains committed to achieving bold commercial ambitions for the future. By 2031 we aim to deliver 40 billion in annual sales leveraging our existing strong performance momentum to significantly increase our positive impact on the health of billions of patients globally. Our Ahead Together strat...

Company OverviewSmarter Grid Solutions (SGS) is a leading provider of Smart Grid products and services with a client list of network and utility companies ranging across UK and North America such as Scottish & Southern Electricity Distribution Western Power Distribution UK Power Networks Avangrid SP...

About Fimatix:Fimatix provides digital service design and agile delivery applying cutting edge AI and automation technology to help our clients transform and disrupt.Responsibilities: Design develop test and deploy robust and scalable applications using Java and related programming languages.Integra...

i2 a Harris Computer company are seeking a Lead Software Developer on a full-time permanent remote-working basis in the UK.We are seeking a skilled lead engineer with expertise in JavaScript TypeScript & Node backend systems to drive the development and enhancement of our products and this role you...

Job DescriptionSoftware Developer (Service Data Centre) -SubmarinesFull timeDerby ( Office 5 days per week)We need a Software Developer to join our Service Data Analytics Software this varied exciting opportunity you will be supporting the submarines enterprise by leveraging in-service data to deri...

For 75years Charles River employees have worked together to assist in the discovery development and safe manufacture of new drug therapies. When you join our family you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks network.The next step is to speak to Jack.Software DeveloperCompany Description: Early-stage EdTech startupJob Description:As a Software Developer at this mission...

SOFTWARE DEVELOPERLOCATION: WhiteleyCLEARANCE REQUIRED: This role will require attainment and maintenance of SC clearanceLeidos heritage companies pioneered the development of air traffic control systems in the United States more than 50 years ago. Today our systems handle 75 per cent of the air tra...

**Flex Contractor Role This job opening is not eligible for immigration/work visa sponsorship**Toshiba Global Commerce Solutions (TGCS) is seeking aSoftware Developer IV Development Lead to join our team. This is a senior-level technical leadership role for an experienced software developer with a...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks network.The next step is to speak to Jack.Software DeveloperCompany Description: Innovation-led energy tech startupJob Description:We are seeking a highly skilled...

Who We AreAt 8th Light we bring life to the best ideas.Founded in 2006 and headquartered in Chicago we are a technology solutions provider that partners with organizations to solve meaningful challenges and drive sustainable growth. From early-stage startups to global enterprises we work across indu...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks network.The next step is to speak to Jack.Lead Full Stack Software DeveloperCompany Description: Well-funded fintech AI startupJob Description:As the Lead Full St...

This is an exciting opportunity within technology consultancy which offers you fast-track career development opportunities as well as the opportunity to explore new and cutting-edge technologies. This role supports the full life cycle of software development and includes the opportunity for hands-on...

Location of Role: ChelmsfordAdvert Closing Date: 20/02/2026Starting Salary: 45765.00(pro-rata for part-time vacancies)Part/Full Time:Full TimeContract Type: PermanentWorking Pattern: Mon-FriWeekend/Evening Working: NoWe are seeking a highly skilled and motivated Senior Software Developer to join our...

DescriptionOxford Nanopore Technologies: Our goal is to bring the widest benefits to society through enabling the analysis of anything by anyone anywhere. The company has developed a new generation of nanopore-based sensing technology for faster information-rich accessible and affordable molecular a...

Location of Role: ChelmsfordAdvert Closing Date: 19/01/2026Starting Salary: 45765.00(pro-rata for part-time vacancies)Part/Full Time:Full TimeContract Type: PermanentWorking Pattern: Mon-FriWeekend/Evening Working: NoWe are seeking a highly skilled and motivated Senior Software Developer to join our...

Were working with a software company based in Hammersmith thats looking to add a Software Developer to their engineering team. This is a role for someone who enjoys solving real-world problems in a fast-moving environment.The team operates with a high degree of autonomy and ownership. Engineers are...