Back End Developer Java Spring Bootpython Jobs in London, UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Site Reliability Engineer: Resilience & Performance Architect

HCLTech in Greater London seeks a skilled software engineer to develop and support Python, Java, and machine learning applications. The role involves researching innovative solutions to enhance infrastructure performance and implementing frameworks for reliability and data availability. Candidates will benefit f ...

DevOps Engineer: Scalable, Secure FinTech Infra

Apache Associates is seeking a talented DevOps Engineer in London, UK. Play a pivotal role in designing and deploying scalable DevOps solutions while working across various data platforms and orchestration frameworks. Ideal candidates have a strong software engineering background with proficiency in Python, Java ...

Full Stack CMS Engineer – Magnolia/ContentStack (Hybrid/Remote)

MOO is seeking a Software Engineer to join their Browse team in London. The role involves developing content-driven pages using Java, TypeScript, and NextJS while contributing to system requirements and embracing Agile methodologies. Candidates should have experience with CMS and a passion for testing. MOO promo ...

Software Engineer, Retail Banking Platform (Kotlin/Cloud)

A UK-licensed bank is seeking a Software Engineer to build and maintain systems for their Retail Banking Platform. The ideal candidate will design scalable backend services using Kotlin or Java, contributing to the bank's growth and innovation in financial services. The role promotes a collaborative team environ ...

Principal Software Engineer, Personalisation & ML Systems

A leading UK retailer is seeking a Principal Engineer to lead technical strategy within the Personalisation product group. This role involves designing scalable systems for personalisation, recommendations, and machine learning features. The ideal candidate has a strong background in Java or Python, experience w ...

Portfolio Analytics Engineer – Quantitative Risk & Pricing

A leading global investment bank in London seeks a Quantitative Engineering Analyst/Associate to enhance decision-making through advanced analytics and risk management solutions. Candidates should have a strong quantitative background, programming skills in C++, Java or Python, and the ability to thrive in a fas ...

eDV Cleared Contract Software Engineer (Hybrid London)

A leading tech consultancy is seeking eDV-cleared Contract Software Engineers to support secure programmes within government and national security. The role offers £600 - £850 per day and is London-based with hybrid working options. Candidates must possess active eDV clearance and experience in secure environmen ...

Salesforce & React Native Hybrid Engineer – London

A technology services firm is seeking Salesforce & React Native Specialists in London for a 12+ month contract role. You will support development teams with client projects, requiring expertise in Salesforce and/or React Native. Candidates should be proficient in Java, TDD, RESTful API design, and familiar with ...

Senior Backend Engineer – Scalable Experimentation Platform

A leading audio streaming service is seeking a Backend Engineer to join their Confidence team in London. You will design and operate high-throughput backend services, own production incidents, and collaborate with various teams to enhance products. Strong Java/JVM and distributed systems experience is essential. ...

Field Deployment Software Engineer for Autonomous Systems

A leading defence technology company in the UK is seeking a Deployed Software Engineer to implement their technology with customers. The role involves travelling to customer sites, writing code, and collaborating with engineers. Ideal candidates will have a degree in a relevant field and strong programming skill ...

DevOps Engineer

£475 per day Inside IR35 - long term contract with multiple extensions London, UK (5 days onsite) Domain: Banking / Finance / Trading – Market Risk Skills: SRE experience with Python-based applications (not Java) Exposure to cloud techno ...

SRE: Scalable Cloud Systems Engineer

Golang Works is looking for a Site Reliability Engineer (SRE) to support and enhance existing services, platforms, and application stacks. The ideal candidate must have proven ability to write programs in high-level languages like Java, Go, Python, or Perl. A Bachelor’s degree in Computer Science or a related fi ...

Lead React/UI Engineer — Trading Platform (London)

Java Script Works is looking for a Lead Software Engineer - React/UI to join their FICC E-TRADING team in London. This role involves being a key player in an agile environment to design and deliver innovative software solutions. Candidates should have experience with modern tech stacks, particularly in React and ...

Senior Backend Engineer – APIs (Node.js/TypeScript)

Java Script Works is seeking a Senior Software Engineer - Backend in London, United Kingdom. This full-time role focuses on designing and implementing APIs using REST or GraphQL while writing scalable backend services. Candidates should have at least 5 years of programming experience with Node.js and TypeScript, ...

Senior React Native Engineer Shape Apps for Millions

Java Script Works is looking for a Senior React Native Engineer based in London, United Kingdom. This full-time role involves working closely with designers and product thinkers to impact the lives of millions of users. The ideal candidate should possess extensive React Native or mobile experience, dem ...

Patchworks iPaaS Integration Engineer

Java Script Works is seeking an Integration Engineer in London, United Kingdom. The role involves designing integration workflows for platforms like Shopify and using the Patchworks Integration Platform to deliver scalable solutions. The ideal candidate should have solid development skills in JavaScrip ...

Senior/Lead Engineer React, TS & Cross Platform

Java Script Works is looking for a skilled Senior/Lead Engineer with expertise in React (Next.js), React Native, and TypeScript to drive their cross-platform mobile application and technology ecosystem. The ideal candidate will identify and resolve architectural and performance issues, ensuring optimal functiona ...

Python ETL & Analytics Engineer

Infoplus Technologies UK Limited is seeking an experienced data programmer proficient in Python, Java, and SQL. The role focuses on ETL processes and data analytics, requiring 4-6 years of experience in BI solutions and low-code platforms. Candidates should be confident working with financial reporting processes ...

Staff Software Engineer — Full Stack & PostgreSQL Pro

Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

Senior Real Time Trading Platform Engineer

P2P in Greater London is seeking a skilled engineer for their Trading Platform Engineering team. The role focuses on designing and optimizing high-performance systems with proficiency in Java and deep knowledge of Linux kernel internals. The successful candidate will have experience in low-latency opti ...

Senior Database Architect Hedge Fund Data & Security

Quant Capital is seeking a Senior Database Specialist to join their team in London. This full-time role requires proficiency in databases and programming skills including Python and Java. Key responsibilities involve working with technologies like Postgres, Redis, and MongoDB within a hedge fund environment. ...

Full Stack Engineer: Angular UI & High Performance APIs

Java Script Works in London is seeking a Full Stack Software Engineer to contribute to rendering performance and API response times. You will design and build reusable UI components using Angular and TypeScript, while helping to maintain high-performance backend systems. This full-time role offers a co ...

Engineering Manager React Native & Mobile Team Lead

Java Script Works is seeking an experienced Engineering Manager (React Native) in London, UK, to lead mobile development. This role involves building an in-house React Native team and working closely with product and design to deliver high-quality mobile experiences. Candidates should have a strong background in ...

Senior Applied Scientist, Supply Chain Optimization (AI/ML)

Amazon UK Services Ltd. is looking for a Sr. Applied Scientist in Supply Chain Optimization to implement cutting-edge OR/ML techniques. This full-time position requires a Master's degree and experience in programming languages such as Java, C++, and Python, along with expertise in machine learning and deep learn ...

Senior Software Engineer, Partner Integrations & Systems

Quantcast is seeking a Senior Software Engineer for its Partner Integrations team in Greater London. This role involves driving engineering initiatives, resolving cross-team bottlenecks, and supporting junior team members. Successful candidates will have at least 2 years of experience with distributed systems an ...

Hands On Penetration Engineer: Offensive Security Lead

Arcus Search is seeking a Senior Offensive Security Engineer in Greater London to enhance their security efforts. This hands-on role involves penetration testing, vulnerability assessment, and collaboration with engineering teams. Candidates should have solid experience in offensive security, familiarity with Ja ...

Backend Engineer III – Cloud Microservices

hackajob is looking for a Software Engineer III to deliver an outstanding banking experience at JPMorgan Chase. This role involves developing cloud-native microservices and ensuring software reliability, while requiring strong Java programming skills and experience in distributed systems. The ideal candidate wil ...

Ultra Low Latency Trading Engineer (C++/Rust) – London Hybrid

Hunter Bond is seeking a highly skilled Software Engineer to join their London-based team. The role involves designing and optimizing trading platforms for high-performance, ultra-low-latency environments. Applicants should have a degree in Computer Science or Engineering and experience with C++, Python, Rust, o ...

AI Platform Lead Engineer | Backend & Frontend Architect

Jobs via eFinancialCareers is seeking a Lead Engineer based in Greater London, UK. This role will drive the development of backend and frontend systems while establishing engineering best practices. The successful candidate should have over 5 years of experience in software engineering, expertise in Java/Kotlin ...

Production Database Engineer: Automations & Resilience

Palantir Technologies is seeking a Database Operations Engineer to automate database deployments and maintain operational excellence in production systems. This role involves troubleshooting, managing large-scale migrations, and collaborating with engineering teams. Ideal candidates will have strong coding skill ...

Senior Implementation Consultant — Hybrid Delivery Leader

Xceptor is seeking a Senior Implementation Consultant in Greater London to manage client relationships through project delivery in the financial services sector. This position involves requirements gathering, solution design, and ensuring successful implementation. The ideal candidate will hold a relevant degree ...

Senior Backend Engineer — TypeScript & Python

Java Script Works is looking for a Senior Software Engineer (Backend) based in London, UK. The role focuses on managing the backend with technologies like TypeScript, Express, and Python while working with Neo4j for database management. A competitive salary range of £100K - £140K is offered for this full-time ...

Senior Software Engineer Hybrid Payments Platform

Checkout.com is seeking a Senior Software Engineer based in Greater London. The ideal candidate will have a Bachelor's or Master's in Computer Science and proficiency in C# .NET, Java, or Go. Responsibilities include collaborating with teams to design scalable systems and writing high-quality code. Benefits incl ...

Senior Software Engineer Full Stack (React/ASP.NET Core)

Java Script Works is looking for a Senior Software Engineer based in London, United Kingdom. The ideal candidate should have strong knowledge of ASP.NET Core and experience with frontend frameworks such as React and Vue.js. This full-time position offers a competitive compensation package. Please note that visa ...

Senior Software Engineer: Python/Django & TypeScript Architect

Java Script Works in London is seeking a Senior Software Engineer to design, develop, and maintain robust software solutions using Python and TypeScript. The role involves optimizing existing systems through performance tuning and code refactoring. This full-time position offers competitive compensation and requ ...

Lead Full Stack Engineer: Cloud, React & Clojure (London)

WorksHub is looking for a Lead Software Engineer in London to manage and guide teams in developing scalable full stack systems. The role requires experience with Clojure, k8s, AWS or GCP, and involves hands-on work with a diverse tech stack including Java, Python, React, and Terraform. This position of ...

Senior Cloud Security & Infra Engineer (AWS)

Java Script Works is seeking a Senior Software Engineer in Greater London to design, develop, and deploy cloud infrastructure on AWS utilizing technologies like CloudFormation, CDK, and Terraform. The ideal candidate will have expertise in Node.js, TypeScript, and NestJS, alongside a strong focus on implementing ...

Fintech Frontend Support Engineer — Angular & ASP.NET MVC

Java Script Works is seeking a Support Engineer to join their team in London, United Kingdom. This full-time role involves both frontend and backend development responsibilities using technologies such as HTML5, JavaScript, Angular.js, CSS3, and ASP.NET MVC. The ideal candidate will demonstrate experie ...

Remote Fullstack Engineer: Data, AI & Visualization

myGwork - LGBTQ+ Business Community is seeking a Fullstack Engineer to work in a remote or hybrid capacity. This role involves responsibilities in data preparation, consumption, and visualization, utilizing cutting-edge technologies like Java, Python, and various frameworks. Candidates should have a strong backg ...

Senior Software Engineer – Greenfield API Platform

A leading recruitment firm is looking for Software Engineers to assist with a greenfield technology implementation project for a top financial services firm in London. The role focuses on API development using C#, TypeScript, and ideally Python or Java, emphasizing systems integration. This position offers the c ...

London based Fullstack Engineer – AI HealthTech

Java Script Works is hiring a Fullstack Engineer in London, United Kingdom. The ideal candidate will have proficiency in JavaScript, React, and Node.js, along with experience in AWS for infrastructure management. This full-time position offers a compensation rate of up to £15 per hour. Visa sponsorship is not pr ...

Staff Software Engineer in London Booksy

Skills Proficient in Python/Java programming, with a comprehensive understanding of advanced features and best practices. Experience in JavaScript/TypeScript and modern web frameworks (preferably Vue.js). Extensive experience with PostgreSQL database management system. ...

Fullstack Engineer Build Large Scale Impact in London

WorksHub is seeking a Fullstack Engineer to work on large-scale projects in London, United Kingdom. This role requires strong skills in full-stack development, with a focus on Docker, Kubernetes, Java, and Scala. You will contribute to impactful and meaningful projects. Join us to be part of an innovative team p ...

Senior ML Engineer — London: Scale Data & Models

WorksHub is seeking a Senior Machine Learning Engineer based in London, United Kingdom. This full-time role involves effective communication and proficiency in programming languages including Go, C++, Java, Rust, along with experience in deep learning frameworks such as PyTorch and TensorFlow. The position offer ...

Staff Web Apps Engineer — React/Next.js Lead

Java Script Works is looking for a Staff Software Engineer - Web Apps to join their team in Greater London. The ideal candidate will have strong development experience with React, Node.js, and JavaScript, along with an understanding of cloud technologies and deployment processes. This full-time role offers compe ...

FX Services Full Stack Engineer (TypeScript/React)

Java Script Works is looking for a Software Engineer II specializing in FX Services Full-Stack development. Located in Greater London, this role requires proficiency in Python, NodeJS, TypeScript, and React, alongside hands-on experience with SQL databases. The ideal candidate will be involved in architecting an ...

D365 Finance Lead Engineer (Retail)

Java Script Works is seeking a Lead - D365 Engineer (Finance) based in London. This full-time role requires a strong background in Dynamics 365 development, especially in the retail sector. Candidates should possess robust expertise in TypeScript, X++, .NET, and have experience with finance-related D365 F&O modu ...

Partner Program Manager

I’m partnering with a global, profitable SaaS scale‑up operating at the forefront of AI‑driven software development to hire a Partner Program Manager. This business is widely recognised as a leader in AI code review, verification, and software governance, working with modern AI coding tools and tru ...

Frontend Engineer

Front End Engineer About Zuma Labs Zuma Labs is a disruptive technology startup building force multipliers for systemic industries. Our first two products, Venetian and Squawk, target the over-the-counter (OTC) trading markets. We work ...

Senior Software Engineer Ticker Plant,Event Processing

Senior Software Engineer - Ticker Plant, Event Processing Location London Business Area Engineering and CTO Ref # **Description & Requirements** The Ticker Plant system is a central hub of the Bloomberg market data infrastructure, processing daily ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Back End Developer Java Spring Bootpython Jobs in London Job Search Guide, Trends and Insights