6,824 Full-time full stack java developer jobs in London, United Kingdom.

Showing vacancies

wintermute-trading

C++ Quant Developer - Options

11 days ago

Full-time
Contract

... role, you will directly collaborate with our traders, focusing on the development of scalable, high-performance options trading systems. You will engage with the full options stack, expanding the business across centralized finance, decentralized finance, and OTC. The ideal candidate is able to solve difficult problems and ...

London, United Kingdom

evervault

Design Engineer

11 days ago

Remote
Hybrid
On-site
Full-time

About Evervault Evervault offers modular payments infrastructure for companies building their own payments stack. We keep raw card data off your systems, cut PCI compliance work, improve acceptance, mitigate fraud and chargebacks and decrease your cost of payments, so you keep full control. Trusted by Ramp, Rippling, Modern ...

London, United Kingdom

Jefferies

Global Equities Technology - Developer (Vice President)

4 days ago

On-site
Full-time

... front-office trading workflows, opportunities to own end-to-end components. We use a spectrum of development frameworks and programming languages including Python, Java, C++, C#, KDB/Q, full stack visualization dashboards implementations with HTML5 & D3 in addition to the cloud on a global scale to provide capacity, performance, ...

London, United Kingdom

Quant Capital

QlikSense Developer - Qlik Fintech50

13 days ago

Full-time
Contract

... application across the organization ·Establish standards and conventions around all data elements and models incorporated in the Qlik environment QlikSense Developers must have: (Below also shows tech stack) ·Experience with QlikSense scripting and development ·Knowledge of integrating Qlik mashups into webpages ·Strong ...

London, United Kingdom

TECH TALENT ID

Senior Java Engineer - 80% Onsite - Java Greenfield - Micronaut/Netty

3 days ago

On-site
Full-time

£65k - £70k per annum

Company: TECH TALENT ID Job Type: Permanent Salary: £65000.00 - £70000.00 [{"name": "permanent_employment", "text": "Permanent", "categoryName": "Type of employment"}]

London, United Kingdom

Konrad

Software Developer (Entry Level)

8 days ago

Remote
Hybrid
Full-time

... improving software development workflows and processes. Nice to have - If more interested in web application development, experience working with one or more of: JavaScript, React, https://jobeax.com/link/JSd7UYCSg572jJDY, Python or Java. - If more interested in mobile development, experience working with one or more of: iOS ...

London, United Kingdom

Ricoh

Application Security Consultant

3 days ago

Full-time

£62k - £102k per annum

... an equal opportunities employer and welcome applications from people of all backgrounds, identities and experiences. last updated 44 week of 2026 [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}, {"name": "flexible_hours", "text": "Flexible hours", "categoryName": "Working schedule"}, {"name": ...

London, United Kingdom

Starling Bank

Software Engineer - Java - Engine by Starling (IT)

3 days ago

Hybrid
Full-time

16 / year

... in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis. The main part of our Backend Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase ...

London, United Kingdom

CBSbutler Holdings Limited trading as CBSbutler

Java Engineer - Market Data

8 days ago

Hybrid
On-site
Full-time
Contract

£85k - £110k per annum

... automated, regression, and integration testing. - Use AI-assisted development tools to improve coding, testing, and productivity. Technologies: - AI - API - Support - Java - TDD More: We are seeking an experienced Java Engineer to support the modernisation of a Futures algorithmic trading platform. The role focuses on migrating ...

London, United Kingdom

Zensar

AES - DE - FS - Java

11 days ago

Full-time

... quality, performance, and security. - Support application modernization, troubleshooting, and performance optimization. - Support Power Platform Apps. - Mentor developers and drive technical excellence within the team. - Strong expertise in Java 17+, Spring Boot, Spring Framework, and RESTful APIs. - Experience with microservices ...

London, United Kingdom

RIU Hotels & Resorts

Painter - Full Time

3 days ago

Full-time

707 / year

... responsible practices, and making a positive contribution to the communities where we operate. By joining RIU , you will become part of a company that not only strives for service excellence but also aims to create a positive impact on the world. [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

London, United Kingdom

Nomura

Java Software Engineer, Prime Technology

3 days ago

Hybrid
Full-time
Contract

... working on systems that are central to the firm's Prime strategy. Role Description Responsibilities include: - Design, build and maintain platform components in Java, contributing hands-on code across the full development lifecycle. - Apply automated testing practices embedded directly into the CI/CD pipeline, not treated ...

London, United Kingdom

Validus Risk Management

Python Developer

8 days ago

Full-time

IT
Backend

... Responsibilities: - Own multiple concurrent CST initiatives, ensuring timely execution with clear stakeholder communication and transparency. - Design and implement full stack solutions (backend services, APIs, data pipelines, and frontend components) aligned with Horizon architecture and best practices. - Develop and maintain ...

London, United Kingdom

RIU Hotels & Resorts

Kitchen Porter - Full Time

1 day ago

Full-time

£12.81 per hour

... operate. By joining RIU , you will become part of a company that not only strives for service excellence but also aims to create a positive impact on the world. [{"name": "hourly_rate", "text": "Hourly pay", "categoryName": "Salary_Payment"}, {"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

London, United Kingdom

Decathlon

Full time Sport Advisor

8 days ago

Full-time

... with the Cycle-to-Work Scheme - Dive into top-notch training at Decathlon Academy - Dive into hundreds of discount vouchers (think groceries, travel, shopping, and more!) with our discount hub developed by SmartSpending! … and many more [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

London, United Kingdom

9fin

Senior Backend Engineer

9 days ago

Hybrid
On-site
Full-time

Backend

$145 USD

... environments, feature flags and well maintained non production environments. You will be able to move with velocity and get feedback and iterate quickly. Our Backend Stack - Python is the dominant backend language used - Flask & FastAPI - Typing is used within our Python stack to power automated documentation and API definitions ...

London, United Kingdom

SPENCER CLARKE GROUP

RPA Developer

3 days ago

Hybrid
Full-time
Contract

£42.5k - £68k per annum

... and regular competitions. last updated 45 week of 2026 [{"name": "permanent_employment", "text": "Permanent", "categoryName": "Type of employment"}, {"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}, {"name": "temporary", "text": "Temporary", "categoryName": "Type of employment"}, {"name": ...

London, United Kingdom

Data Intellect

kdb+ Developer

3 days ago

Hybrid
Full-time

... Accommodations are available throughout the assessment and selection process. Ready to grow your kdb+ career with us? Challenge Accepted. Apply now. [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}, {"name": "hybrid_working", "text": "Hybrid working", "categoryName": "Working conditions"}, ...

London, United Kingdom

Energy Saving Trust

Junior Developer

3 days ago

Remote
Hybrid
On-site
Full-time

£30.5k per annum

... we are unable to provide visa sponsorship for this post. To apply for this post, you must be able to demonstrate your eligibility to work in the UK [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}, {"name": "work_at_office", "text": "On-site", "categoryName": "Working conditions"}, {"name": ...

London, United Kingdom

Haystack

Python Developer

8 days ago

Full-time

Backend

£200k per annum

... a bonus, not a requirement. What's On Offer - Up to £200k base + bonus, with a generous benefits package. - Flexibility with working from home. - Flat management and a friendly culture where ideas are welcomed. Apply via Haystack today! [{"name": "full_time", "text": "Full-time", "categoryName": "Type of employment"}]

London, United Kingdom