Backend Developer Java Spring Boot Python Jobs in London, UK

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FX Java Developer

Your new role We're looking for a Java Developer to join a large financial‑markets organisation on a long‑term modernisation programme. The role focuses on upgrading legacy systems, improving performance, and supporting both real‑time and batch‑processing services. What you'll need to ...

Fullstack Software Engineer

Fullstack Software Developer £600/day Inside IR-35 for an initial 6 months with extension likely London - 2-3 days per week on site Active SC Clearance essential We're looking for a full‑stack Java developer to join an established engineering team w ...

Software Engineer Backend in London Noon Academy

Software Engineer - Backend London, United Kingdom Posted 11 months ago Tech Stack Spring Framework Spring Boot Java Job Description Reduce complexity and toil by identifying bottlenecks and improving system efficiency. ...

Principal Software Engineer in London Noon Academy

Principal Software Engineer London, United Kingdom Posted 12 months ago Tech stack Java Kubernetes Spring Boot Spring Framework Requirements 8+ years experience in backend development using Java/Sprin ...

Java Software Engineer

A London-based trading company is looking for an experienced Java Engineer to join their technology team on an initial 6-month contract. This role is well suited to a backend-focused engineer who enjoys building robust, scalable Java services using modern frameworks, working closely with product, tr ...

Senior Python Backend Software Developer

About us At Xelix, we work with some of the world’s largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate – moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up – thin ...

Senior Backend Developer (Django/Python)

Updraft. Helping you make changes that pay off. Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day decisions involved in managing money and mainstream borrowings ...

Senior Python Backend Software Developer

About us At Xelix, we work with some of the world’s largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate – moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up – thin ...

Senior Backend Developer (Django/Python)

Updraft. Helping you make changes that pay off.Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day decisions involved in managing money and mainstream borrowings like ...

Senior Backend Developer (Django/Python)

Updraft. Helping you make changes that pay off.Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day decisions involved in managing money and mainstream borrowings like ...

Backend Java Developer Public Sector

Introduction At IBM Consulting UK FutureNow, you'll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You'll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and ...

Backend Java Developer Public Sector

Introduction At IBM Consulting UK FutureNow, you’ll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You’ll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and ...

Backend Java Developer Public Sector

**Introduction**At IBM Consulting UK FutureNow, you'll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors.You'll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver so ...

Backend Java Developer – London Freelance

Job descriptionContextThis digital product is part of a high-growth strategic pillar dedicated to digital expansion. It is a critical solution enabling product sales through a diverse network of external channels (general marketplaces, social commerce, quick-commerce). The platform i ...

Backend Java Developer – London Freelance

Job descriptionContextThis digital product is part of a high-growth strategic pillar dedicated to digital expansion. It is a critical solution enabling product sales through a diverse network of external channels (general marketplaces, social commerce, quick-commerce). The platform i ...

Jnr/Mid Full Stack Engineer

Junior / Mid Full Stack Developer (Java) | Buy-Side Trading Mayfair, London (Hybrid – 2–3 days onsite) The Opportunity We’re working exclusively with a high-growth buy-side quantitative fund building a next-generation electronic FX (eFX) trading engine . T ...

Engineering Manager in London Noon Academy

Engineering Manager London, United Kingdom Posted 12 months ago Tech stack Spring Framework Java React TypeScript Spring Boot React Native Manager Job Requirements ...including re ...

Junior Developer in London Yapily

Junior Developer London, UnitedKingdom Tech Stack Java APIs Spring Boot JUnit REST Spring Framework Requirements 12+ months hands‑on experience with Spring Boot and Java 11+ Understan ...

Senior Developer Angular, Java, Active SC in London Hays

Senior Developer - Angular, Java, Active SC Clearance London, United Kingdom Technology Stack API Spring Framework Spring Boot Angular (frontend) Java (v17) JPA/Hibernate REST Observability and monitorin ...

Backend Engineer

Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Backend Engineer will build innovative next‑gen solutions that are at the forefront of the data industry. In this role, the Backend Software Engineer will be given full aut ...

Sr. Java Developer with AWS (ECS, S3, RDS, Lambda, Glue) experience to RESTful services for our capital markets client

Sr. Java Developer with AWS (ECS, S3, RDS, Lambda, Glue) experience to RESTful services for our capital markets client Duration: 12 MonthsLocation: Toronto (Hybrid, 2x/week)Must Haves: 10+ years of experience in coding, application development using Jav ...

Sr. Java Developer with AWS (ECS, S3, RDS, Lambda, Glue) experience to RESTful services for our capital markets client

Sr. Java Developer with AWS (ECS, S3, RDS, Lambda, Glue) experience to RESTful services for our capital markets client Duration: 12 MonthsLocation: Toronto (Hybrid, 2x/week)Must Haves: 10+ years of experience in coding, application development using Jav ...

FULL STACK DEVELOPER OPEN REPLY

Career Opportunities: Full-Stack Developer - Open Reply (10844) Requisition ID10844 -Posted - Years of Experience (1) -Technology - Where (1) Reply specialises in the design and implementation of solutions based on new communication channels and digital media. As a network o ...

Senior Java Backend Engineer Fully Remote, SC Cleared

Experis - ManpowerGroup is seeking a Senior Backend Java Engineer for a fully remote, 6-month contract position. The ideal candidate must have hands-on experience in backend development, specifically with Java (version 17 or above) and Spring Boot. Responsibilities include designing and deploying scalable backen ...

Senior Java Analyst Developer / Technical Consultant in London Quant Capital

Senior Java Analyst Developer / Technical Consultant London, United Kingdom Tech Stack Databases Spring Framework Ember.js NoSQL Spring Boot Docker Kubernetes React JPA JavaScript Cloud < ...

Java Developer

Java Developer Employment Type: Full-time Location: Berlin, Germany Salary: €50,000 - 60,000 Relocation Assistance: May be available Opportunity Overview We are seeking a Java Developer to join a dynamic team deliveri ...

Staff / Senior Lead Software Engineer Backend Platform

Job Description Behind every investment is a person with ambitions, motivations and values. While we know that every client is unique, they come to J.P. Morgan Personal Investing for the same reason: our straightforward and transparent approach to investing, and the trust that 150 years of J.P. M ...

Staff / Senior Lead Software Engineer Backend Platform

Job Description Behind every investment is a person with ambitions, motivations and values. While we know that every client is unique, they come to J.P. Morgan Personal Investing for the same reason: our straightforward and transparent approach to investing, and the trust that 150 years of J.P. M ...

Java Developer Java, React, Springboot

Java Developer - Java, React, Springboot£market rate (Outside IR35)Glasgow / 5 days a week onsite6 months initiallyMy client is seeking experienced Java Developers to join a dynamic delivery team building modern, scalable applications. This role will suit candidates with strong fu ...

Senior Software Engineer Kotlin

Senior Kotlin Developer (Java, Kafka, AWS) – FinTech London (Hybrid: 3 days onsite) Up to £110,000 per year + benefits About the Company We’re a fast-growing FinTech building modern, cloud-native platforms that power real-time financial services used by thousands of cust ...

Senior Java Software Engineer

The Opportunity As a Senior Java Developer, you will join an international engineering team responsible for developing and enhancing a sophisticated Content Management System that powers multiple global streaming platforms. You will work on Java-based backend systems, including da ...

Lead Java Developer

Job Type: Permanent Location: Glasgow, London, Whippany Number of hours: 40 hours per week – full time Ready to apply your experience and expertise as a Senior Java Developer? We have an exciting opportunity for you — Senior Java Developer! Collab ...

Java Full Stack

Java Full Stack Developer 12‑Month contract initially Based: Hybrid – 3 days per week onsite in Manchester Rate – £400 – £450 per day via Umbrella Overview We have a great opportunity with a world leading organisation where you will be provided with all of ...

Backend Java Developer (IT) in London Nexus Jobs Limited

Backend Java Developer (IT) London, UnitedKingdom Posted 9 months ago We are urgently looking to recruit a Java backend Developer with at least 5 years of experience. The ideal candidate must have strong experience in Data Structures and Algorithms. Additionally, experience with S ...

Java Backend Engineer Hybrid (London/Bristol)

A leading IT consultancy in the UK is seeking a Java Backend Engineer to build and maintain backend components for modern digital services. This role offers the chance to work with technologies like Java 8+, Spring Boot, and microservices in a collaborative, Agile environment. Ideal candidates will have strong e ...

Engineering Manager: Java Microservices & AWS Lead

Legal & General is seeking an Engineering Manager to lead backend platform development using Java and AWS. This pivotal leadership role involves guiding a cross-functional engineering team and ensuring high engineering standards. Responsibilities include driving technical strategies, overseeing code quality, and ...

Backend Software Engineer

Software Engineer – Java 21, SpringbootUp to £550 per day (Inside IR35)London / Remote6 monthsMy client is an instantly recognisable consultancy who require a strong Backend Software Engineer with deep expertise in Java (Spring Boot) to join a large-scale, business‑critical microservi ...

Backend Software Engineer

Software Engineer – Java 21, SpringbootUp to £550 per day (Inside IR35)London / Remote6 monthsMy client is an instantly recognisable consultancy who require a strong Backend Software Engineer with deep expertise in Java (Spring Boot) to join a large-scale, business‑critical microservi ...

Java Backend Engineer

Job Title: Java Backend EngineerNo: of Positions: x4Location: LondonDuration of the Assignment: 1 YearExperience required: 10+Department/Practice: Commercial bankingStart Date: 17/07/2026Day rate: Upto £550 per day - DoE (Inside IR35)Job Purpose and primary objectives:Our clie ...

SC Cleared Java Dev: Java 17+, AWS & Angular (Hybrid)

Java Script Works is seeking a skilled Java Developer with Active SC Clearance, proficient in Java 17+, Spring/Spring Boot, Angular, and AWS. This role, based in London, offers a competitive rate of up to £420 per day (Inside IR35) and supports a hybrid working environment. The ideal candidate will hav ...

JD Java Developer Intern Placement London, UK

We are looking for an enthusiastic and motivated Java Developer Intern to join our development team. This role offers a unique opportunity to gain hands‑on experience in software development, work on real‑world projects, and enhance your Java programming skills in a professional environment. Qua ...

Java Developer SC Cleared, Java v17+, AWS, Angular in London Hays

Key Skills Required: Java Developer with Active SC Clearance Java v17+ AWS Angular Additional Skills: Knowledge of Kubernetes and Docker Experience in Microservices Architecture Familiarity with: Apac ...

Java Developer – Active SC, NPPV3, Java

Java Developer – Active SC, NPPV3, JavaUp to £425 per day – Inside IR35Primarily Remote12 monthsMy client is an instantly recognisable consultancy who require a Java Developer with Active SC and NPPV3 clearance for a client within the public sector.Key Requirements:Provenmercial experience working as a ...

Java Developer – Active SC, NPPV3, Java

Java Developer – Active SC, NPPV3, JavaUp to £425 per day – Inside IR35Primarily Remote12 monthsMy client is an instantly recognisable consultancy who require a Java Developer with Active SC and NPPV3 clearance for a client within the public sector.Key Requirements:Provenmercial experience working as a ...

Blockchain Developer

Smart Contract Developer (Enterprise Blockchain) London HQ 2 days a week We’re looking for an experienced Smart Contract Developer with strong expertise in enterprise blockchain platforms, Solidity‑based smart contracts, and cloud‑native backend services. This role i ...

Java/Kotlin Developer

Senior Software Developer (SC Cleared) Rate: 470 a day Inside IR35 Clearance Required: Active SC ClearanceContract Length: 3-month contract (scope for extension)Start Date: Early-to-mid JuneLocation: Primarily remote with occasional onsite ...

Senior Software Developer

As a Senior Software Engineer (Backend), you will play a key role in designing and building scalable, cloud-based services using Java and Spring Boot. You’ll work closely with your manager, architecture team and teammates to deliver high-quality backend systems that power critical business functionality.< ...

Senior Software Developer

As a Senior Software Engineer (Backend), you will play a key role in designing and building scalable, cloud-based services using Java and Spring Boot. You’ll work closely with your manager, architecture team and teammates to deliver high-quality backend systems that power critical business functionality.< ...

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 sol ...

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    Backend Developer Java Spring Boot Python Jobs in London Job Search Guide, Trends and Insights