357,588+ Java Software Engineer Cloudnative Api Security Jobs in UK — Top Companies Hiring June 2026

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Project Infrastructure & MBSE Engineer NETE

Description s; developing, testing, and verifying internal documentation surrounding software and data organization processes.Support to client: Maintaining positive, friendly, collaborative relationships with team members, and internal and external stakeholders. Liaison with s ...

Senior Software Engineer (Enterprise)

Requirements Note: Prior experience with our tech stack is not required; we welcome people willing to learn 6+ years of experience as a Software Engineer Strong technical expertise with a proven track record of building products that people love and use daily F ...

Staff Software Engineer Flights

Are you a Software Engineer who thrives on real ownership? At Perk, we know that we feel most fulfilled when we can own the problem and the solution. This means taking responsibility for the entire lifecycle of a feature, from understanding what our customers' pains are with our product team, des ...

Software Engineer Kubernetes & Go

Neo4j’s Aura, our managed cloud offering, brings the power of graph databases to the cloud. We are seeking an experienced Backend Software Engineer to join our Identity and Access Management team to help rebuild our IAM platform. This role is a great fit for someone with strong backend development and Kube ...

Backend Software Engineer (Python)

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide. Our platform delivers tailored, exclusive insights through web, mobile, and API interfaces ...

Software Engineer, Cloud Infrastructure

About the Team The Applications Engineering team works across research, engineering, product, and design to bring OpenAI’s technology to consumers and businesses. You’ll join the team responsible for running the core infrastructure that supports products like ChatGPT and the API. The systems ...

Python Software Engineer AI

Mercor Mercor is recruiting U.S./UK/Canada/Europe-based SWEs for a model-training project with a leading foundational model AI lab. Job Overview This is a contract role requiring around 20 hours per week, at least one month long, with pay of $100 per hour based on experience. Succe ...

Software Engineer, Codex Enterprise

About the Team With Codex we’re building an AI software engineer. One that you can pair with, delegate to, or even ask to take on future tasks proactively. Our team is a fast-moving group within OpenAI, bringing together research, engineering, design, and product. We iteratively build the Codex a ...

Frontend Software Engineer (TypeScript)

Requirements We are looking for a developer who can navigate logic, manage state, and help us build maintainable solutions Experience: 1-3 years of software engineering experience with knowledge of HTML, CSS, TypeScript and ideally modern frontend frameworks Logic & Stat ...

Software Engineer in Test

Job Details Job Type: Contracting Location: Manchester Hours: 40 hours per week – full time Are you looking to combine software testing expertise with AI‑driven approaches to improve quality and efficiency in modern engineering environments? <p ...

Software Engineer Summer Internship

We’re UserTesting—the leader in human insight. Our mission is to help organizations craft exceptional customer experiences through fast, actionable feedback. We empower teams to build the best products and experiences by embedding real human perspectives into every stage of the development process— ...

Software Engineer (Next.js Playwright)

Your Impact As a Software Engineer, you'll help design, build and maintain the web applications that power our healthcare automation platform. You'll work across the full development lifecycle, collaborating with Product, Engineering and Clinical teams to deliver reliable, scalable solutions used ...

Software Compliance Engineer (Automotive)

Overview Expleo is a trusted partner for end-to-end, integrated engineering, quality services and management consulting for digital transformation. We help businesses harness unrelenting technological change to successfully deliver innovations that will help them gain a competitive advantage and ...

Lead Software Engineer SDET

Job Description We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. Join us to shape the future of technology and quality assurance. You'll have the opportunity to work with cutting-edge tools and frameworks, collaborating with ...

Applied AI Software Engineer

AI Software Development Engineer Domain: Public Sector & Defence Solutions The Objective Seeking software engineers specialised in applied artificial intelligence to build and deploy advanced large language model (LLM) solutions for highly regulated UK institutions, including defence, natio ...

Lead Software Engineer FTC

Location Great Abington, Cambridge CB21 6AD (Agile; approximately 2 days a week from our office) This is a Fixed Term , 24-months, Full Time vacancy. The Vacancy As the UK’s leading dementia research charity, we’re determined to stop this from becoming a reality. We’re working to ...

Lead Software Engineer Python

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorganChase within the Emerging Market Repo Trade Management Technology team, you are an integral part of an agile team that works to enhance, bui ...

Consulting/Principal Software Engineer

## .**About the team:**The SciVal Development Team is a cross-functional group comprising Frontend, Backend, and Quality Engineers who work closely together. The team collaborates closely with UX and Product to design, build, and deliver high-quality features efficiently and reliably.SciVal is a data-driven prod ...

Software Engineer (AxiomSL AI)

As a Software Engineer reporting to VP - Product Management , you'll play a critical role in designing and delivering sophisticated software solutions that power Nasdaq's AxiomSL AI product. You'll work across the full development lifecycle - from architecture to implementation - bringing your expertise to ...

XVA Lead Software Engineer

## XVA - Lead Software EngineerApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: Join Citi's XVA Technology team in London as a Lead Software Engineer at Vice President level, and take on a role at the intersection of advanced softwa ...

Senior Embedded Software Engineer

Compensation: GBP 40,000 - GBP 60,000 - yearly Company Description ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, A ...

BMS Software & Commissioning Engineer

BMS Software & Commissioning Engineer ECS Power & Control Ltd — Norwich, Norfolk (office & UK site travel) Salary: £34,000 - £56,000 depending on experience | Type: Permanent, full-time | Hours: 40 / week About ECS Power & Control ECS Power & Control Ltd is an established Ea ...

Senior Software Engineer (Cards)

Senior Software Engineer (Full Stack) Location: Chester, with potential to work from the Manchester office in the future. Full‑time (35 hrs per week). Hybrid style: at least two days per week in the office. Job Summary Lead technical development and delivery within the team as an i ...

Senior Software Engineer (Python)

digiLab is a formative AI company with world-leading specialists in uncertainty quantification, applied where the stakes are highest and the margin for error is smallest. Our customers are among the largest and most advanced engineering and science‑led organisations in the world, and they are using our tec ...

Senior Software Engineer GammaLabs

A bit about us At Gamma, we’re more than just a leader in Unified Communications as a Service (UCaaS). We’re a fast-moving technology organisation delivering innovative voice, data, and mobile solutions across Europe. Our product and service portfolio is at the heart of what we do — power ...

Senior Software Engineer I

## Senior Software Engineer IApplylocations: Londontime type: Full timeposted on: Posted Todayjob requisition id: R Are you passionate about building reliable, secure cloud platforms that power critical data solutions?Do you enjoy solving complex infrastructure challenges while improving performance, res ...

Senior Software Engineer I

About the Role This role focuses on designing, building, and operating secure, scalable cloud infrastructure to support data platforms across AWS, Databricks, and Snowflake. You will work closely with engineering and security teams to enable reliable, observable, and cost‑efficient systems. The po ...

Senior ML Software Engineer

Senior Software Engineer (ML Systems) Title: Senior Software Engineer (ML Systems) Company: Deep Technology Organisation Location: London Pay: Up to 120,000 A deeply technical organisation is investing heavily in the future of large- ...

Senior Software Engineer Processing

About TxODDS TxODDS is a premier provider of ultra low-latency, accurate odds data, fast scores, and innovative betting solutions for the global sports betting industry. With offices in London, Chicago, and Belgrade - and team members working worldwide - we deliver cutting-edge technology and data ...

Senior Software Engineer Python

We are looking for a Backend Senior Software Engineer to help design, build, and operate backend systems. Reporting into our Engineering Director, you will work on production software used by customers and partners, and your work will have an impact on the reliability, usability, and evolution of our platf ...

Senior Software Engineer London

What's it like to work at Sequence? Small team, big opportunity, real ownership. You'll do work that matters, have direct access to customers, and grow alongside the company. If you want to do the best work of your career at a company that’s scaling fast, we’d love to meet you. W ...

Senior Test Software Engineer

Senior Test Software Engineer Based on site in Stevenage Salary from £45,000 - £75,000 DOE + Bonus + 14% Pension + Paid Overtime The software you write won’t sit behind a login screen. It will configure, verify and validate complex defence systems. It will be used in development, pro ...

Senior Software Engineer (Angular)

At MHR, our employees are central to our success and play a key role in helping customers achieve sustainable high performance. With a team of over 900 professionals, we work to make things flow smoothly, whether it's for large organisations or individual employees. As businesses face rapid changes in the ...

Senior Software Engineer Flights

Are you a Software Engineer who thrives on real ownership? At Perk, we know that we feel most fulfilled when we can own the problem and the solution. This means taking responsibility for the entire lifecycle of a feature, from understanding what our customers are facing with our product team, thr ...

Back End Software Engineer

Back End Software Engineer Department: Engineering Employment Type: Full Time Location: London, UK Compensation: £57,000 - £75,000 / year Description We are a team of about 50 engineers who collaborate closely and take prid ...

Software Engineer (C# .NET

Qualifications Hands on Experience: Around 4 years of practical experience in software engineering using C# .NET, delivering reliable solutions as part of a team. Technical Foundations: A good understanding of object-oriented design and familiarity with frameworks and tools such a ...

Software Engineer Digital Assets

What You’ll Do Design and build trading systems for digital asset markets Develop and manage connectivity to centralised exchanges such as Binance, Deribit, and OKX Work directly with traders and researchers to prototype and iterate on trading strategies ...

Senior Frontend Software Engineer

The team blends Full Stack Engineers and UI Specialists, and this hire will have both the autonomy and freedom to lead feature development and take ownership of greenfield initiatives launching in 2026. The engineering group is known for solving technical and mathematical problems with creativity and preci ...

Software Engineer C++/ADA

Location: Bristol (preferred) with regular travel to Yeovil for testing and meetings Duration: 6 months IR35 Status: Outside IR35 Rate: Competitive (dependent on experience) Clearance: BPSS - SC Overview We are seeking an experienced Software Engineer to support the development of mission‑c ...

Software Engineer (Lead Gen)

We founded iamproperty to do the things no one else was doing, but we’ve grown because we have the best people. It’s our team who drive our success and help make our culture unique, creative, and filled with personality. With over half our staff working remotely, location is not an issue either. Hi ...

Lead Software Engineer Android

Job Description We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionize mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're q ...

Senior Analytics Software Engineer

Job Req Number: • Full Time At DSV, we’re building the world’s leading logistics and transport network. With this exciting growth comes opportunity – and we’re looking for new talent to join us. Role: Senior Analytics Software Engineer Location: PARC Institute of Manufacturing, Lo ...

Senior Software Engineer (Calculations)

Addepar is a global data and AI platform empowering investment professionals to turn complex financial information into actionable intelligence. Addepar unifies portfolio, market and client data in a total portfolio view and delivers AI-powered insights within investment and client workflows. More than 1,4 ...

Lead Software Engineer FTC

Job Summary Lead Software Engineer will play a critical, hands‑on role in shaping the future of our digital, data, and technology offering, focusing primarily on the new website platform. Key Responsibilities Act as the internal technical owner of the new website platf ...

Software Engineer, Platform Systems

Software Engineer, Platform Systems | OpenAI Scaling - London, UK About the Team The Platform Systems team at OpenAI operates at the intersection of cutting‑edge AI and large‑scale distributed systems. We build the engineering and research infrastructure required to train OpenAI’s ...

Software Engineer (AI+Fullstack)

Software Engineer (AI & Full Stack) - Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Base locations: London, Manchester, Newcastle or Glasgow Job Type: Permanent | Hybrid (2 days per week) | Occasional travel to cl ...

Naimuri Software Engineer Manchester

Job Title: Naimuri - Software Engineer Job Location: Salford Quays, Manchester Job Type: Permanent, Fulltime, minimum 3 days per week on site Job ID: 19892 We can offer you the chance to help make the UK a safer place through innovation, working in partnership with governmen ...

Software Engineer (AI+Fullstack)

Software Engineer (AI & Full Stack) - Senior Consultant Salary: £60,000 - £70,000 pa + £4,000 Bonus plus benefits, perks and healthcare options Base locations: London, Manchester, Newcastle or Glasgow Job Type: Permanent | Hybrid (2 days per week) | O ...

Senior Android Software Engineer

Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 97M+ da ...

Software Engineer: AI & Finance

Role: Quant DeveloperClient: Ambitious, early‑stage quantitative investment firmCompensation: Excellent base plus bonus + Equity on offerLocation: London Overview We’re partnering with an ambitious, early‑stage quantitative investment firm that ...

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    Java Software Engineer Cloudnative Api Security Jobs in United Kingdom Job Search Guide, Trends and Insights