Java Back End Developer jobs in London

Hyalli

About Hyalli Hyalli is a UK-based proptech platform reimagining how people find, verify, and move into rental properties. We are building the trust and identity layer for the rental market — combining verified profiles, intelligent matching, referencing, onboarding, and property management in one pl

Initialize

£40,000 - £60,000 /year

Backend Python Developer (AI) - Remote - UK - excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Python coding experience (backend, API development would be great). Good understanding of Docker, and scalable distributed s

Syncoms

Job Description What’s in it for you? Within a year of working with us, you will be entrepreneurial, confident in your area of expertise, be amongst the top of your game and the envy of your peers. Many of our colleagues have moved onto exceptional leadership positions leading innovative tech projec

Methods

£4,583 - £5,417 /month

Who you are Java Spring Boot: Confirmed level proficiency for the architectural rebuild Database: PostgreSQL Cache : Redis / Valkey Architecture: REST Architecture and Event-Driven architecture Cloud & Infrastructure: Google Cloud Platform GCP and Kubernetes clusters Experience with Python to fa

Mentor Talent Acquisition

We're building LLM-powered workflow tools to support investment research for private market investors, used by leading private equity and consulting firms globally. The company is profitable, bootstrapped, and growing quickly, with a team of 30+ across London, NYC, and Sydney. The RoleThis is a high

The Opportunity Hub UK

Back-End Developer/Java Engineer InternshipLocation: Surrey, United Kingdom Posted: 10 months ago Tech StackJava, Computer Science, Backend Programme DescriptionWe're seeking a motivated Computer Science undergraduate with Java programming experience for a high-impact summer internship (June/July st

Sessions

£50,000 - £55,000 /year

BACK-END DEVELOPER 💷 £50k - £55k + Bonus + Share Options 🏡REMOTE - Travel to London one Wednesday per month WHO ARE WE? #14 - Fastest Growing UK Tech Company (Sunday Times) #65 - Fastest Growing UK&I Company (Sifted) #77 - Fastest Growing Europe Company (Sifted) Sessions is building the operat

Internet Developer Software development company, producing policy administration systems and customer portals for the Life Insurance market.Seeking an individual with good experience in development experience in Java and Javascript /analysis/design experience in an IT environment.Must have previous

Jas Gujral is seeking an Internet Developer based in Stratford, E15. The ideal candidate will have strong experience in Java and JavaScript, along with a solid understanding of Life Insurance systems and business dashboards. Excellent spoken and written English is essential for clear client communic

W Talent

Salary £80k to £120k plus Quarterly bonuses Role DescriptionWe are seeking a talented Senior Backend Engineer to join our London-based team full-time. You will play a key role in building and scaling the core infrastructure of our AI platform, owning critical backend systems, and supporting rapid pr

Robert Half

Job Description Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a Backend Engineer on a 6 months contract basis. Hybrid working - London based As a Backend Engineer, you will build and scale services that enable internationalisation and support integra

Methods Business and Digital Technology

Salary: £55k to £65K Methods is recruiting for a Back-end Developer specialising in Java Spring Boot and Python to join our team within the private Sector Business unit on a permanent basis. This is a hybrid role, requiring three days a week on-site in our London office. Requirements Architectural R

Insight Global

Insight Global is searching for a Sr. Backend Engineer to join the team of our largest entertainment streaming clients. This person will join the senior level team that works on the company’s multiple partnership platforms focused on search and discovery features, billing, payment, and viewing. This

CV-Library

Use your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchers London with hybrid working; to £90k DoE + options and benefits This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldw

Nexus

Job Description Front End Developer with Java – Central London Our Client is looking to recruit a Front End Java developer with at least 3 to 5 years solid development experience. Must have the following skills: HTML, XHTML, HTML5 ** CSS2, CSS3 ** JavaScript ** AJAX ** JSON, JSONP ** XML, XSLT, XSD

Randstad Technologies

Job Description Senior Backend Engineer (Security Compliance) - 100% Remote The RoleJoin a high-autonomy team as a senior contractor architecting the next generation of our security compliance platform. You will own technical decisions end-to-end, building systems that ensure every production code c

NearTech Search

• Job Title: Senior Back End Developer (Python) • Salary Range: £100,000 – £120,000 + Bonus • Location: London | Hybrid (2–3 days office) This Senior Back End Developer role will shape a brand-new data platform designed to support complex decision-making for major global organisations. Thi

Plexus Resource Solutions

Senior Backend Engineer DeFi Gobal (Remote) They are looking for a Senior Backend Engineer who brings deep DeFi engineering experience and thrives in a small, high-calibre team where their work genuinely moves the needle. Design and optimise APIs and database architecture for a high-frequency, large

Nexus

Job Description We urgently require a Front-End Java Developer with at least 3 to 5 years experience of developing global digital marketing platform to provide a complete web experience management solution for Customer to market products & services to learners on a global scale. The candidate will b

Mid/Senior Back End Developer, Golang | Social Media, Scale-Up, 18 Million Users | Salary Up to £85,000 + Benefits & Bonus (EU/UK Remote) We’re seeking a talented Back-End Developer with strong experience in Golang to join a fast-growing social media mobile application, withover 18 million downloads