18,535+ Java Developer Java React Springboot Jobs in London, UK — Local Employers Hiring June 2026

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Senior/Staff Site Reliability Engineer

About Engineering At Fonoa Engineering is central to how we build the business. We focus on solving real customer problems , not just shipping features. We work in small, high-trust teams , with full ownership across the lifecycle, from design to production and beyond. </b ...

Vice President, Client Platforms Web Architect

Over the last 20 years, Ares’ success has been driven by our people and our culture. Today, our team is guided by our core values – Collaborative, Responsible, Entrepreneurial, Self-Aware, Trustworthy – and our purpose to be a catalyst for shared prosperity and a better future. Through our recruitment, car ...

Principal Front End Engineer

About UsSolirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely with our clients, embedding our con ...

Principal Full Stack Engineer, Contract

Who Are We?Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing m ...

Principal Front End Engineer

About UsSolirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely with our clients, embedding our con ...

Principal Full Stack Engineer, Contract

Who Are We?Xcelirate develops technologically-advanced platforms which are accessed by thousands of users every minute! We are proud to offer a workplace where the sharpest developers come together to strategically plan and swiftly execute practices which see us maintain our existing m ...

Principal Engineer (.NET & Azure Fully Remote) in London

Principal Engineer (.NET & Azure) £100-120K + bonus + benefits Fully remote – EU & UK Our client is a scale up payments platform with a fantastic founding team. They are keen to hire an outstanding Principal Engineer to join the technical team. This role is full ...

Quantitative Trader – HFT Futures

Quantitative Trader – High-Frequency Trading - Futures A leading trading firm is seeking a High Frequency Futures Trader to join their hugely successful desk. You will have the opportunity to leverage advanced technology and pricing models to maximize profit. <e ...

Senior Application Engineer

Company Description Telefónica Tech (part of the Telefónica Group) is a leading NextGen Tech solutions provider with a highly diversified team of over 6,000 skilled employees and +60 nationalities. We serve more than 5.5m customers every day in over 175 countries, with a global ecosystem ...

Product Leader (Agent Platform)

Overview At JetBrains, we’re building an AI-native platform for software development that connects developer workflows, team-level collaboration, and organizational control into a single coherent system. This platform will serve as the execution and governance layer for AI-driven development. It ...

Software Engineer II Salesforce

At CDW, we make it happen, together. Trust, connection, and commitment are at the heart of how we work together to deliver for our customers. It’s why we’re coworkers, not just employees. Coworkers who genuinely believe in supporting our customers and one another. We collectively forge our path forward wit ...

Senior AI Software Engineer, Gaming & Coding Agent

Tencent Overseas IT has the mission to empower Tencent’s rapid global growth with future ready, global IT platforms, applications and services. We are chartered to lead the Overseas IT strategy, architecture, roadmap and execution. Satisfying our internal/external customers and becoming a world class globa ...

Data Support Specialist

Octus is a leading global provider of credit intelligence, data, and analytics. Since 2013, tens of thousands of professionals across hedge fund, investment banking, management consulting, and law firm verticals have come to rely on Octus to make better, faster, and more confident decisions in pace with th ...

Senior UX Designer

Role Overview As a Senior Product Designer, you will play a key role across two significant workstreams, shaping both customer‑facing and internal experiences that support an evolving aggregation and distribution strategy. You will lead discovery, influence product direction, and bring strong desi ...

Senior Product Designer: B2B/B2C, Discovery & Lead UX

Role Overview As a Senior Product Designer, you will play a key role across two significant workstreams, shaping both customer‑facing and internal experiences that support an evolving aggregation and distribution strategy. You will lead discovery, influence product direction, and bring strong desi ...

AI Deployment Engineer | Codex

About the teamThe Codex Deployment Engineering team helps customers adopt OpenAI's coding tools throughout their software development lifecycle. We act as trusted technical partners, guiding engineering teams as they integrate Codex into their projects and workflows. Our customers span digital-n ...

AI Deployment Engineer | Codex

About the teamThe Codex Deployment Engineering team helps customers adopt OpenAI's coding tools throughout their software development lifecycle. We act as trusted technical partners, guiding engineering teams as they integrate Codex into their projects and workflows. Our customers span digital-n ...

Security Engineer

**Privacy Information**We and our partners are using tracking technologies to process personal data in order to improve your experience. You may always exercise your consumer right to opt-out. For detailed information about personal information we collect and third parties having access to it, please select ‘Mor ...

Lead Software Engineer Platform Chase UK

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, to revolutionise mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quic ...

Lead Cloud Observability Engineer — OpenTelemetry

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, to revolutionise mobile banking with seamless journeys that our customers love. We're already trusted by millions in the US and we're quickly catching up in the Uni ...

Senior Solutions Engineer, EMEA

Every day, the world gets more digital thanks to tens of millions of developers building the future faster than ever. But with exponential growth comes exponential risk, as outnumbered security teams struggle to secure mountains of code. This is where Snyk (pronounced “sneak”) comes in. Snyk is a developer se ...

Senior Solutions Engineer, EMEA

Every day, the world gets more digital thanks to tens of millions of developers building the future faster than ever. But with exponential growth comes exponential risk, as outnumbered security teams struggle to secure mountains of code. This is where Snyk (pronounced “sneak”) comes in. Snyk is a developer se ...

Senior Frontend Engineer

Every business needs to know who they’re really working with whether it’s suppliers, investors, partners, or third parties. At Xapien, we’re reinventing how organisations do that, combining speed, scale and accuracy with cutting-edge AI. Since 2018, we’ve grown from a deep-tech startup to a global ...

Senior UX Engineer

A Bit About Us We’re Doccla, and we’re redefining where and how healthcare is delivered. Our Virtual Ward and Remote Monitoring Solutions enable hospitals and health systems to care for patients at home. We support patients across the full care journey from early discharge and acute recovery to l ...

Senior Fullstack Engineer

Senior Fullstack Engineer Application Deadline: 31 May 2026 Department: Engineering Employment Type: Permanent - Full Time Location: London Compensation: £70,000 - £85,000 / year Description About us ...

Senior Software Engineer, Full stack

Overview At Pairwise, we are a team of engineers, operators, and builders focused on enabling the next generation of technical talent to do their best work. We partner with leading technology companies to deliver high-performance engineering solutions across embedded systems, networking, semicond ...

Senior Software Engineer, Content Agent

We're hiring a senior engineer for Content Agent - Sanity's operations layer for structured content. It's the system that turns content work (bulk edits, audits, translation, publishing) into things an agent can actually run. It lives in Dashboard, Studio, Slack, and behind a headless API. If you've spent ...

Front End Engineer

DescriptionWho are we?Hi! We are Ravelin! We're a fraud detection company using advanced machine learning and network analysis technology to solve big problems. Our goal is to make online transactions safer and help our clients feel confident ...

Full Stack Engineer (Backend Heavy)

ABOUT QUANTUMLOOPAIQuantumLoopAI is one of the UK's fastest-growing healthtech companies. Our AI-powered platform, EMMA, is used by hundreds of organisations across the UK to manage communications, automate workflows and deliver better outcomes through intelligent automation. Backed by leading investor ...

Front End Engineer

DescriptionWho are we?Hi! We are Ravelin! We're a fraud detection company using advanced machine learning and network analysis technology to solve big problems. Our goal is to make online transactions safer and help our clients feel confident ...

Full Stack Engineer (Backend Heavy)

ABOUT QUANTUMLOOPAIQuantumLoopAI is one of the UK's fastest-growing healthtech companies. Our AI-powered platform, EMMA, is used by hundreds of organisations across the UK to manage communications, automate workflows and deliver better outcomes through intelligent automation. Backed by leading investor ...

Senior Product Manager

Chesamel Group is an agile consultancy headquartered in London, focused on driving extraordinary growth for forward‑thinking businesses through innovative, bespoke solutions. The team challenges traditional thinking to deliver transformative business outcomes using human ingenuity and advanced technology. ...

Principal Engineer

Principal Engineer - Permanent - £100,000 to £115,000 - Hybrid (2 days per week in London) Please note: This role does not offer sponsorship, and candidates must have full right to work in the UK. La Fosse has partnered with a customer engagement partner to recruit a Principal Engineer to ...

Fullstack engineer Freelance

Share this opportunity to other talents of your network: Offer them a visibility boost with clients. Help your contacts find their next job. Contract Details Contract type: Freelance Daily rate: 400-800€ daily Location: London, UK Duration: 4 to 8 weeks ...

Full stack Engineer

Full-Stack Engineer Salary: £100,000 – £110,000 Location: London- hybrid Data Idols are working with an ambitious technology company using AI to transform how organisations learn, grow and adapt. Their mission is to build cutting‑edge digital products that empowe ...

Stellar AI: Senior Software Engineer

We are seeking experienced Software Engineers to work on projects across the following tech stacks: Go, React This is an open-ended contract opportunity, structured around project-based work with no set schedules or minimum time or task commitments. Contributors who work with us deci ...

Senior Python Developers and... err, ballet.

The Full Stack Engineer will work for a fast-paced software business. The Full Stack Engineer will earn £90,000 per year plus benefits. The Full Stack Engineer will enjoy remote working (staggered working hours). The Full Stack Engineer will not just use AI tools but act ...

Backend Engineer – Music Tech – PHP

Job Description The Role As a senior backend PHP engineer for this scaling Music Tech Startup you will join a team of 5 to deliver on a variety of greenfield projects and new feature builds. You will join a supportive and collaborative team that regularly meets and enjoy cel ...

Research Analyst – 29764

OverviewKey Duties (Including but not limited to):Develop and document proprietary software packages that integrate third party modelling software with the company’s existing software/databasesSoftware analysis of advanced scientific data to model potential catastrophic e ...

Account Manager

Job Title: Account Manager – Direct Mail Salary: £30k to £37k pa (depending on experience) Location: London Reference: J3784 Contact: Telephone: 0141 647 6688 Categories: , , , A leading print management company, which delivers outstandin ...

Research Analyst – 29764

OverviewKey Duties (Including but not limited to):Develop and document proprietary software packages that integrate third party modelling software with the company’s existing software/databasesSoftware analysis of advanced scientific data to model potential catastrophic e ...

Backend Engineer – Music Tech – PHP

Job Description The Role As a senior backend PHP engineer for this scaling Music Tech Startup you will join a team of 5 to deliver on a variety of greenfield projects and new feature builds. You will join a supportive and collaborative team that regularly meets and enjoy cel ...

Account Manager

Job Title: Account Manager – Direct Mail Salary: £30k to £37k pa (depending on experience) Location: London Reference: J3784 Contact: Telephone: 0141 647 6688 Categories: , , , A leading print management company, which delivers outstandin ...

Director to focus on new sector growth for design orientated studio

Our client is a high-end, multi-award-winning studio in central London. They are now looking for someone at a senior level to join their small/medium team and help expand their offering within the developer‑led, co‑living sector. Candidates will need excellent experience within this sector in central Londo ...

Associate Director – London

FutureGen Recruitment is seeking an MRTPI Associate Director to join a leading London consultancy delivering complex mixed-use and urban regeneration projects. The Role Leading multi-disciplinary project teams Managing key client relationships Driving business de ...

Associate Planner – London

FutureGen Recruitment is working with a highly ambitiousconsultancy looking to appoint an Associate Planner (MRTPI) to help leadresidential and strategic land projects across London and the South East. The Role: Leadingmajor residential applications Strategicland prom ...

Growth Marketing Manager: PPC & B2B SaaS Growth

We’re looking for a data-driven growth marketer to own and scale our paid acquisition engine. If you love testing, optimising, and turning spend into pipeline What you’ll do: • Run experiments, A/B tests & budget scaling What you bring: • 2–4 years in PPC (Google, Meta, LinkedIn es ...

Growth Marketing Manager

We’re looking for a data-driven growth marketer to own and scale our paid acquisition engine. If you love testing, optimising, and turning spend into pipeline What you’ll do: Run experiments, A/B tests & budget scaling What you bring: 2–4 years in PPC ...

Cainiao UK business opertaion & development manager UK

Logistics Service External Business Coordinator/Developer1, daily monitor local business CP (local cooperation partners) service quality and KPIs;2, analyse and collect local market intelligence, and be able to generate the integrated analysis and to support the business3, Meets the ...

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