senior java backend developer jobs in London

Full Stack Engineer (ML Ops)London, UK FinTech · Banking · FinanceSkills & ExperienceJob roles: Full Stack Experience level: Mid, Senior Core skills considered: Java, React, Redux, AWS, JavaScriptLogisticsBase salary: £70K - £110KEmployment type: PermanentRemote working: Hybrid (up to 2 remote days per week)Visa sponsorship: Not availableJob...

Senior Full Stack Developer Location: London Contract: Contract Working Pattern: Office-based We’re looking for an experienced Senior Full Stack Developer to join a small development team building and maintaining a complex, business-critical internal platform. This is a hands-on senior role with genuine technical ownership. You’ll take requirements...

Senior C# Developer / Software Engineer (C# .Net) London onsite to £150k Opportunity to progress your career in a senior, hands-on C# Developer role at a global Asset Manager with c$3 million under management. As a Senior C# Developer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be...

Waracle are looking for a Senior Mobile SecurityDeveloper (Inside IR35) for an exciting new 6-month initial contract joining our world-class digital technology consultancy, home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and...

The RoleWe are looking for a Senior Engineer to join our growing engineering team, and build out our backend third party integration systems as we scale. For us, this isn’t just about technical performance, but also supporting the internal human processes that will always power much of our product. You will work closely with Product, Operations, Customer...

Full Stack Java EngineerDuration: ASAP - 31st December 2027Workload: Full-time hoursSetup: Freelance (Daily Rate / BV or ZZP)Sponsorship: Not ProvidedLocation: Veldhoven, Netherlands (2 days per week onsite, 3 remote)Our client is seeking an experienced Full Stack Java Engineer to support the development and modernisation of a large-scale application...

**Senior Quant Developer - OTC - Liquidity - Digital Assets** Excellent opportunity opens for a highly quantitative **Senior Quant Developer** (QD) to join a leading Firm's **OTC Pricing team.** This role sits at the critical intersection of Quantitative Research (QR) and production engineering. You will be a "proper" QD—collaborating directly on the...

# Senior Software Engineer II - Backend (Java) - Account SharingWise · London, United KingdomLocation: London, United KingdomSalary: 111000 - 145000 GBP Annual + RSU'sFunding: Public Company (LSE: WISE)Posted: Sep 23, 2026Wise is hiring a Senior Software Engineer II - Backend (Java) - Account Sharing based in London, United Kingdom. Every apply link...

We are looking for a candidate with strong Java and / or Kotlin, good oracle skills and experience, and knowledge of and experience developing and running high-throughput distributed systems. Kubernetes knowledge also preferred. **Responsibilities** - System Architecture & Development: Design, build, and optimize high-throughput distributed services...

Our mission is to enable everyone to build wealth We reinvent how trading and investing work by creating exceptional products people love. That takes high standards, high velocity and engineers who own what they ship. Today, we serve over 6 million clients, with more than €38 billion in assets under management. At that scale, performance, reliability and...

Backend Engineer Primary location: London, United Kingdom. Company: Jack & Jill – a well‑funded green energy startup. Job Description You will architect the core digital infrastructure for a next‑generation energy platform focused on global decarbonization. By building high‑volume pipelines and real‑time digital twins of renewable assets, you will...

LSEG ищет опытного Backend-инженера на Scala для разработки и поддержки масштабируемых сервисов в распределенной среде. Требуется глубокое знание event-driven архитектуры, Docker/Kubernetes и CI/CD в GitLab, а также опыт с...

Virtual Hire Staffing is seeking a Mid / Senior Java Web Engineer for a leading global financial markets infrastructure client in London. The role involves hands-on work across backend services and web UI, delivering a modular end-to-end trade management platform in collaboration with architects and frontend developers.Requirements include strong Java with...

Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money. As part of our team, you...

We are partnering with a leading technology-driven organisation operating within the **Financial Services, FinTech and Payments sector** to hire several experienced **Senior Backend Software Engineers**. This is an opportunity to join a high-performing engineering team responsible for building and enhancing customer-facing products used at scale....

A trusted UK Central Government technology programme is looking for an experienced Senior Java Developer to join their team. This role involves designing and coding applications while working collaboratively with other developers and testers. Candidates should have strong Java expertise, solid experience with Web APIs, and be able to manage complex...

Company DescriptionAt ANDigital there’s a buzz. It’s the buzz of brilliant, curious people set free to imagine the impossible. A hubbub of ‘what ifs?’, ‘why nots?’ and ‘let’s trys’ all working together to push boundaries and create the future of digital.Job DescriptionANDigital is a new way for digital delivery.We are growing fast and...

Working at CreateFutureCreateFuture is fast becoming the UK’s most recognisable digital consultancy, with years of experience building digital products and services for major organisations whilst putting our people first. We have offices in the centre of Edinburgh, Leeds, Manchester, and London as well as remote employees located throughout the country.We...

Golang Backend Engineer, Financial Product Fraud London, England Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global...

About FreetradeFreetrade’s mission is to become the default place to invest. Investing has been too complicated and expensive for too long, keeping millions from making the most of their savings.We’re changing that.We’re building our team and looking for people who are excited to reshape how our customers invest and grow their wealth. If you’re...