Java Backend Developer Jobs in Slough, UK

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Java Backend Developer

Greetings from Mastek! Java Backend Developer – Public Sector, Reading, UK We’re seeking an experienced Java Backend Developer for one of the Public Sector Account. Job Title: Strong Java Backend Developer Expected Work Experi ...

Java Developer Payments

Role Summary We are looking for an experienced Java Developer with strong exposure to the Payments domain to design, build, and enhance applications supporting global payment processing and modernization programs. The role involves developing scalable, high-performance backend c ...

Java Developer Contract

Senior Java Developer - Contract - Kafka / AWS / Kubernetes Hybrid – 3 days onsite in London Up to £750 per day (Inside IR35) 12-month contract (strong extension potential) We’re looking for a Senior Java Developer to join a high-performing team ...

Java Software Engineer

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote, adhoc; Leeds, London or Manchester) Project Overview This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. </ ...

Full Stack Java Developer (React.js)

Job Title: Full Stack Java Developer (React.js) Job Location: London, UK/ Hybrid Job Type: Permanent Job Description: Java Developer: Java Full Stack with React and Gen AI, Docker/ Kubernetes, Terraform/ Cloud Formation, MQ/ , Datadog/ App ...

Senior Java Developer Low Latency

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry soluti ...

Senior Java Developer Market Connectivity

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry soluti ...

Senior Software Engineer

Senior Java / Full Stack Developer London | Hybrid / Flexible Working Up to £87,000 Our client, a fast-growing product-led SaaS business, is looking to hire a Senior Java / Full Stack Developer to support the scaling of an AI-powered platform solving complex finance and tax chall ...

Software Engineer

Quant Developer - Rust/Java/C++ - London - £130k base (minimum) + bonus Who? One of the world's leading macro hedge funds ($30bn+ AUM) with a dedicated digital assets division. Small Product Engineering team (13-14 engineers) sitting between core systems and trading desks. </ ...

Senior Full Stack Engineer – FX e Trading – London

Senior Full‑Stack Engineer – FX e‑Trading – London Atrium EMEA is looking for several Senior Full‑Stack Engineer with good experience of FX e‑Trading (React/TypeScript + Java) to help architect and build a new FX e‑trading platform from the ground up, working across the stack to del ...

Backend Engineer

Role Title: Backend Engineer (.NET / Cloud / Distributed Systems / AI) Function: Technology/R&D Reports to: CTO Territories: UK </ ...

Full Stack Engineer

ITC Infotech is looking for a Full Stack Lead Developer/Solution Architect to join our team in London, UK Your X-Factor Work ethic - You are a consummate professional. Aptitude - You have an innate capacity to transition from project to pro ...

Web Application Developer

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry soluti ...

Senior Backend Engineer

Build the Backbone of Intelligent Systems This is not another backend role. This is a chance to help build the invisible infrastructure powering the next generation of intelligent systems used by some of the most complex organisations in the world. We’re assembling ...

Backend Engineer | Greenfield Energy Trading Front Office | London Hybrid | Up to £130k + Bonus

Backend Engineer | Greenfield Energy Trading - Front Office | London Hybrid | Up to £130k + Bonus I am looking for a Backend focused engineer with Node.js for a Trading House that build cross asset trading systems. They are expanding their Market Making capability so need some extra ...

Java Software Engineer

Java Full Stack Engineer (Consultant – Senior Consultant) - Permanent Position An established digital engineering practice is growing its team and looking for Java Full Stack Engineers to join a range of high-impact transformation programmes. The work focuses on building mod ...

Java L3 Support

Job Title: Java L3 Support Location: London, UK Job Type: Contract Job Summary: We are looking for a skilled Java Developer with strong L3 Production Support experience to join our team. The ideal candidate should have expertise i ...

Java Software Engineer

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered around digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry so ...

Principal Software Engineer

Principal Engineer Up to £200,000 (Can be flexible dependant on the person) + Share Options London (Hybrid) You’ll take real ownership from day one in a fast-growing SaaS scale-up, with the autonomy to shape how things are built and the opportunity to explo ...

Software Engineer

Role: Software Engineer (Java) Location: London once a month Salary: negotiable dependent on experience A great opportunity to join a global SaaS company with an international footprint and enterprise-scale clients. Their partnership with Google gives t ...

Senior Backend .NET Engineer

Senior Backend Engineer - .NET Hybrid – London, UK | Full-time Salary - £90-£120k + equity Skills: C#, .NET, Azure (Service Bus, App Services), Kafka, TypeScript, Mongo DB About the Company Our client is a fast-growing, wel ...

Senior Java Software Engineer

Senior Java Software Engineer – Commodities Trading - London - Permanent I’m currently partnering with a leading global commodities trading firm undergoing a major transformation of its trading technology landscape, and they are looking for a Senior Software Engineer to join their E ...

Senior Java Software Engineer

Contract Java/Full Stack Developer £530/day Inside IR-35 Happy to accept non cleared candidates and those with lapsed SC Remote with occasional travel to London for client meetings only - expensable We are looking for experienced senior Fullstack Java Software En ...

Senior Software Engineer

Senior Developer (AWS/Serverless) Canary Wharf, London (Hybrid – 3 days onsite) £500/Day (Inside IR35) 6 Month Contract About the Role We’re hiring a Senior AWS Serverless Developer to join a greenfield project building a modern, ev ...

Senior Java Software Engineer

Java Developers – AWS, Kafka & Spring Boot Contract: 12 Months | £775 per day | Inside IR35 We are looking for an experienced Java Developer to join a high-performing engineering team on a 12-month contract , working on modern, cloud-based sys ...

C# Developer (Mid-Level) ⚙️ Middle & Back Office Systems | Commodities & Energy Trading Up to £75k + Bonus + Benefits | London (Hybrid) A leading Commodities & Energy Trading firm is looking for a C# Developer to join its Middle & Back Office technology te ...

Pentaho Developer

Role/Job Title: Pentaho Developer Work Location: London, UKMode of Working: 3 days/week Duration of Assignment: 06 MonthsThe Role In this role, you design and develop ETL workflows using Pentaho Data Integration, writing and optimizing Java and SQL code to support effici ...

Full Stack Engineer ( Banking )

What You’ll Do Design, build, and own end‑to‑end features across both frontend and backend systems Architect scalable, secure, and maintainable platforms for private banking and institutional use cases Take ownership of key technical decisions, balancing execution speed with deli ...

Scala Developer 12 Month Contract (Outside IR35)

£450 per day Fully Remote (UK-based) Occasional Out-of-Hours Work Required Im supporting a long-term programme looking for an experienced Scala Developer to join a high-performing engineering team on a 12-month Outside IR35 contract . Key Skill ...

Software Engineer

We're building Folio AI — the next generation commerce engine for millions of businesses. This is a core engineering role. Your first mission: own our mobile apps. But this isn't a siloed mobile role — you'll work across the stack, from mobile clients to backend systems and APIs, wherever th ...

Full Stack Developer

We are currently looking to hire a highly skilled Full Stack Developer on a project-based contract to join our clients engineering team and contribute to a series of high-impact platform builds. This role involves working on complex, scalable systems that require strong expertise across both frontend a ...

Full Stack Engineer

Full Stack Engineer (JavaScript / TypeScript) - Product Focussed - Fast Scaling Global Tech Company A fast-growing consumer tech company is looking for talented product focussed engineers to join their high-performing, cross-functional growth team . You’ll ship feature ...

Senior Software Engineer Java/Springboot

This is an exciting opportunity to join a major global consulting and digital transformation organisation, recognised for delivering large-scale solutions across some of the UK’s most influential sectors. Their teams partner with government departments, financial services institutions, energy companies, major ...

KDB Developer

Role: KDB Developer Location: London Rates : Flexible Start Date: ASAP About the role: The successful candidate will be an experienced ‘hands on’ KDB developer. Prior experience of distributed systems and statistical analysis ...

Platform Engineer | Fintech Startup | London | Hybrid | TWE44720

Platform Engineer | Fintech Startup Company A growing technology company in the financial services industry, developing AI-powered software for automating document analysis and operational workflows. Role As a Platform Engineer, you wi ...

Lead React Native Developer Up to £120k Elite tech Firm!

Role: Lead React Native Developer Compensation: Up to £120,000 (Permanent) Location: Hybrid (UK-based) Tech Stack: React Native Leading the design and development of scalable, high-performance mobile applications using Re ...

Scala Developer

Scala Developer with solid functional programming understanding is sought on a remote basis by an international software house based in the UK.This Scala Developer would be joining the innovation arm of the business tasked with building complex, highly scalable greenfield solutions utilised worldwide to d ...

Frontend Developer

About Us: Solirius 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 consultant ...

Product Developer

Performance Outdoor Apparel Product Developer (Menswear & Womenswear) Our client is a premium luxury outdoor brand with a strong heritage and global recognition . Known for combining performance, craftsmanship and contemporary design, the brand continues to evolve its product ...

serviceNow Developer

Job Description Enterprise Technology Engineer (GRC) – ServiceNow Developer / IRM Architect Location: Canary Wharf (Hybrid – 2–3 days onsite/week) Contract Duration: 6-12 Months Role Overview We are seeking a highly skilled Servi ...

Kitchen Developer

Kitchen Developer London Role Overview: Accountable for developing recipes and assisting the Senior NPD Manager in bringing products from initial concept through to Gate 2 approval. Oversees the daily running of the kitchen and management of the ingredient ...

QRM Developer

I am working with a Leading Financial Services Company as they expand their Financial Planning & Analysis capability following recent organisational growth — they’re looking two hire three Senior QRM Developer to play a key role in evolving their financial forecasting and balance sheet modelli ...

Python Developer

Role: Python Software Engineer Location: Remote (anywhere from Europe) Salary: Up to £90k / €100k base + equity We're partnered with a well-funded startup that's building AI agents to automate operations in the consumer goods space. Small team, strong ...

C++ Developer

C++, Market Connectivity, SOR, Low Latency, Systematic Trading McGregor Boyall are partnered with a leading systematic trading fund operating within the London market. This tech-driven investment manager uses highly algorithmic strategies to generate returns and is currently expanding a ...

Python Developer

Core Developer (Python) - Algo Trading Firm - London - Up to £350k+ TC (DOE) One of London's most impressive Algo Trading firms is looking for Engineering Wizards to join their team in London. Having arguably one of the best technology teams in the world, the firm is in a stage of hy ...

iOS Developer

iOS Developer (Swift / SwiftUI) UK remote £55,000 – £60,000 FTC 12 MONTHS We’re working with a growing digital team looking to hire an iOS Developer to support the development of a customer-facing mobile platform. This is a hands-on role where ...

Python Developer

Python Engineer | DV Security Cleared | £100,000 We are seeking multiple Python Engineers with DV Clearance, to work across a suite of government based projects in a newly formed innovation arena. Security Clearance: You must hold DV government clearance. </ ...

Android Developer

Android Developer (Kotlin / Jetpack Compose) UK Remote £55,000 – £60,000 FTC 12 MONTHS We’re working with a growing digital team looking to bring in an Android Developer to support the development of a customer-facing mobile platform. This is ...

Salesforce Developer

Senior Salesforce Developer – Contract (Outside IR35) London based (2-3 days hybrid working) 6month OutsideIR35 (open to extensions) Start date- ASAP We’re looking for Senior Salesforce Developer to join a major transformation project repl ...

Fabric Developer

Purpose of the role Working in partnership with the multiple RTW departments to manage the fabric deliveries and development according to the seasonal brief. Responsibilities Build a close working partnership with Design, Product Development and Production attending ...

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    Java Backend Developer Jobs in Slough Job Search Guide, Trends and Insights