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Principal Java React Jobs In UK - 57 Job Positions Available

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1 – 20 of 57 jobs
Appvia jobs

Principal Software Engineer - UK Security Clearance eligibility required. Location: London, UK (Hybrid ~1 day per week in office / onsite) Contract: Permanent, Full-time Package: £80,000-90,000 + 10% bonus + 10% shares options + benefits About Appvia

Appvia  28 days ago
Roche jobs

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are,

Roche  25 days ago
RTX jobs

Date Posted:2026-05-13 Country:United Kingdom Location:Warminster, Wiltshire Position Role Type:Unspecified Software Developer Warminster based, hybrid working Be at the forefront of transforming British Army training. About us: At OMNIA® Training, we’ve brought together some of the UK’s

RTX  22 days ago
Interactive Investor jobs

Title: Full Stack Java & React Software Engineer (Mid-Level) Location: Hybrid, 3 days a week in Manchester, 2 day remote Salary: From £50,000 Who we are: interactive investor is an award-winning investment platform that puts its customers in

Interactive Investor  15 days ago
Citi jobs

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries

Citi  15 days ago
Twilio jobs

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft

Twilio  6 days ago
Gemba Advantage jobs

Senior/Principal Software Engineer Application Deadline: 5 June 2026 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £70,000 - £100,000 / year Description Please note: This role requires applicants to hold active, or recently active, SC

Gemba Advantage  4 days ago
Barclays jobs

Job Description Purpose of the role To drive technical excellence and innovation by leading the design and implementation of robust software solutions, providing mentorship to engineering teams, fostering cross-functional collaboration, and contributing to strategic planning to

Barclays  3 days ago
JPMorgan Chase & Co. jobs

Step into the role of a Principal Architect at JPMorganChase and become a driving force behind the development and adoption of cutting-edge technologies. As a Principal Architect at JPMorganChase within Prime Finance, you will focus on Technical Architecture,

JPMorgan Chase & Co.  1 day ago
RE Partners jobs

Principal Full-Stack Engineer (Java,React,LLMs) Hello from RE Partners! Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital

RE Partners  4 days ago
numi jobs

Senior Software Engineer (Scala / Distributed Systems) Manchester (Hybrid / 3-4 Days On-Site) Global Mobility & AI Tech Pionee r The physical world is the next frontier for artificial intelligence. I am currently partnering with a

Numi  15 hours ago
Anaplan jobs

A leading software company in Manchester is seeking a Principal Full Stack Engineer to lead the design and operational excellence of backend services and frontend applications. The ideal candidate will mentor senior engineers and collaborate across teams.

Anaplan  10 hours ago
Lendscape jobs

We are looking for an experienced Engineering Manager to lead one of our Engineering teams. You will play a pivotal role in the success of Lendscape, supporting your team to deliver consistently and reliably high-quality software

Lendscape  8 days ago
NatWest Group jobs

Join us as a Full Stack Engineer This is an opportunity for a technically minded individual to join us as a Full Stack Engineer You’ll be designing, producing, testing and implementing working software, working across the

NatWest Group  2 days ago
UBS jobs

City London Job Type Full Time Country / State United Kingdom Function Category Investment Banking, Quantitative Analysis, Sales and trading, Trading Join us At UBS, we know that its our people, with their diverse skills, experiences

UBS  8 hours ago
trg.recruitment jobs

Staff Product Engineer Tech: TypeScript / Kotlin. Back End Agnostics welcome Office: Remote, but meet up once a month or so in London Level: Staff / Principal Level Salary: £100-140k Eng Size: 50 Were working with a

Trg.recruitment  1 day ago
Appvia jobs

Overview Location: London or Newcastle, UK (Hybrid - 1 day in office per week / onsite) • Contract: 6 months with view to extend • Day Rate: £550-£600 per day (Outside IR35) Base pay range information

Appvia  10 hours ago

Engineer the future of global finance. At Citi, our Tech team doesnt just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries

Citigroup  15 days ago

Date Posted: Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Onsite Raytheon UK have a full time, permanent opportunity for a Principal Software Engineer to join our team on our Manchester or Gloucester sites within a

RTX Corporation  11 days ago
Appvia jobs

Principal Software Engineer - UK Security Clearance eligibility required. Location: London, UK (Hybrid ~1 day per week in office / onsite) Contract: Permanent, Full-time Package: £80,000-90,000 + 10% bonus + 10% shares options + benefits About Appvia

Appvia  8 days ago

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