Backend 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

Full Stack Engineer (Blockchain) — Backend / Infrastructure

Fireblocks builds infrastructure that enables financial institutions, banks, and global brands to securely manage digital assets at scale. The platform combines MPC‑based wallet infrastructure with custody and settlement systems used across high‑value, high‑throughput environments. This role sits wi ...

Staff Backend Engineer | Go Microservices & Scale

A tech-focused company in Greater London is hiring a Staff Backend Engineer to take a leadership role in their engineering team. In this position, you'll tackle complex technical problems, influence the architecture of their backend stack, and guide engineering decisions. Ideal candidates have over 10 years of e ...

Senior Backend Engineer SaaS Finance & Payments

A leading proptech company in London is seeking experienced Backend Engineers to enhance their accounting and distribution systems. Ideal candidates will have over 5 years of backend development experience with a strong focus on Ruby and Rails. Enjoy a flexible and remote-first work environment, competitive sala ...

Backend Software Engineer Search, Crawler Team

Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) Join to apply for the Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) role at Perplexity We are seeking an experienced Backend Software Engineer to join our Crawler team ...

Senior Backend Engineer (Ruby of Rails)

Sweatcoin is a London-based and well-funded scale-up with a team of 100 and the mission to make the world more physically active. Our iOS and Android apps have more than 150MM installs, 15M+ active users, more than 300 commercial partners and confirmed by the independent academic research ability to make o ...

Senior Golang Backend Engineer – Platform & APIs

A payment service provider in London is seeking a Senior Software Engineer to design, develop, and maintain core APIs and event-driven services. The ideal candidate will have over 5 years of professional software development experience, strong Golang expertise, and a collaborative spirit. This role offers the ch ...

Senior Infrastructure Engineer — High Scale Backend

A fast-growing AI startup in Greater London is seeking skilled backend engineers to handle massive datasets. You will collaborate within a small team, ensuring robust and efficient data operations. This role demands experience with PostgreSQL and Clickhouse, along with a passion for building impactful solutions. ...

Senior EdTech Backend Engineer – Learning Platforms

A leading EdTech company seeks a Senior Backend Platform Engineer to design and build scalable backend services for their digital learning platforms in London. The ideal candidate will have strong experience in backend engineering, RESTful API design, and cloud systems. This full-time position offers the opportu ...

EV Backend Engineer Intern (Diversity Programme)

A leading renewable energy company in the UK seeks passionate individuals for its internship program focused on backend development. Interns will work with the Electroverse Backend team, contributing to features for the public EV charging network. Applicants should have basic Python skills and a strong interest ...

Backend Engineer Real Time Fintech Exchange

A revolutionary finance technology company in the UK is seeking an experienced engineer to design low-latency, fault-tolerant services for their perpetual futures exchange. Candidates should have a STEM degree and at least 3 years of experience in real-time production systems. Familiarity with languages like Rus ...

Staff Backend Engineer, Routing & Optimization (Hybrid)

A growing logistics startup in London is looking for a Staff Backend Engineer passionate about solving complex operational problems. You will design and implement robust systems for routing and demand matching as part of a dynamic team. Ideal candidates will have a degree in Computer Science along with strong co ...

Senior Backend Engineer — AI Infrastructure & Scale

A technology company in Greater London is looking for a Backend Engineer to contribute to building resilient systems for AI agents. The role involves owning systems from architectural decisions to production, focused on reliability and scaling. Candidates should have substantial experience in production software ...

MarTech Backend Engineer — Privacy First Stack

A leading technology company in Greater London is seeking a Backend Engineer to enhance their marketing technology stack. The successful candidate will design and implement key components, integrate solutions across teams, and improve user conversion and experience. Ideal applicants will have strong experience i ...

Lead Agile Backend Manager Contactless Platform

A major public transport authority in the UK is seeking an Application Development Manager to lead Agile development teams within its Contactless backend. The role involves driving best practices in software development, ensuring secure and scalable solutions, and mentoring talent. Key technical skills required ...

Remote Senior Backend Architect (Multitenancy & IAM)

A tech learning company seeks a Senior Backend Engineer to lead the development of scalable multitenant infrastructure. The role emphasizes strong architectural principles, expertise in statically typed languages, and readiness to master Python 3.x. Enjoy a fully remote, flexible work environment with competitiv ...

Senior Backend Engineer, Cloud Networking SaaS

A leading cloud networking company in Greater London is seeking a Software Engineer to join a newly formed team. This role involves designing and building scalable backend systems to support the next phase of the company's growth. The ideal candidate should have over 6 years of experience in backend development ...

Staff Backend Engineer in London Zego

Senior Software Engineer, Machine Learning Location: 108 E 16th Street, New York, NY 10003 Overview Focus on Python-based backend systems as the primary area of work. Provide support for Machine Learning initiatives and may collaborate with Scala and Mobile teams depending on inter ...

Senior Backend Engineer Python & ML Collaboration

Senior Software Engineer, Machine Learning Location: 108 E 16th Street, New York, NY 10003 Overview Focus on Python-based backend systems as the primary area of work. Provide support for Machine Learning initiatives and may collaborate with Scala and Mobile teams depending on inter ...

Senior Backend Engineer — Hybrid, Equity & APIs

A leading AI platform for debt markets seeks a Senior Backend Engineer to join their Structured Credit team. You will lead projects, mentor junior developers, and enhance the backend services for a cutting-edge CLO product. A strong background in Python and API development is essential. The role offers competiti ...

Backend Engineer: AI Powered Workflow Platform

A technology company located in Greater London seeks a Backend Engineer to lead the implementation and delivery of backend services for innovative SaaS applications. This role involves building and integrating APIs, designing data workflows using advanced AI tools, and collaborating within a dynamic team. Candid ...

Senior Backend Engineer — Cloud, Data Security

A leading technology company is seeking a Python DevOps Engineer in Greater London. You will work on full lifecycle application development, focusing on secure and compliant processing services. The role requires 5+ years of experience in backend programming, knowledge of cloud applications, and a collaborative ...

Lead Backend Engineer Cloud Native Microservices

A major global banking institution is seeking a Lead Software Engineer to develop cloud-native applications in a collaborative environment. The ideal candidate will possess strong Java programming skills and experience with cloud technologies, particularly AWS. Responsibilities include delivering end-to-end solu ...

Staff Software Engineer (Optimizely Analytics, Backend)

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Create Alert Staff Software Engineer- (Optimizely Analytics, Backend) At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and ...

Remote Backend SaaS Engineer — Python & API

A leading open source software company is looking for a talented software developer to create new features and improve the Landscape codebase. The role involves remote collaboration with a global team, committing to high-quality code and automated testing, and requires strong proficiency in Python and experience ...

Backend Engineer Own Production APIs & Systems

A leading technology firm in the UK is seeking an experienced Backend Engineer to design and develop APIs and backend services. You will manage infrastructure involving cloud platforms and ensure production-level software delivery. The ideal candidate has at least 2 years of experience, strong problem-solving sk ...

Senior Backend Engineer — Carbon Insights Platform

A leading sustainability software company in Greater London seeks passionate individuals to join their product team. The role focuses on building systems that enable supplier engagement and manage carbon emissions data. Candidates should have experience with product development and a strong understanding of sust ...

Python Backend Engineer — REST APIs & PostgreSQL

Strong proficiency in Python (e.g., Django, Flask, FastAPI) Hands-on experience with PostgreSQL , including performance tuning and indexing Solid understanding of SDLC methodologies (Agile, Scrum, or Waterfall) Experience designing and consuming RES ...

Staff Backend Engineer Distributed Systems & Lakehouse

A leading data and AI company in Greater London is seeking an experienced Software Engineer to join as a founding member of their London site. The role involves tackling complex technical challenges across various domains and contributing to the development of scalable, secure services. Candidates should have ov ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing company is seeking a Senior Backend Engineer to design and develop scalable backend systems for their unified marketing platform. This hands-on role requires strong expertise in Python and modern development patterns, with a focus on performance, reliability, and observability. You wil ...

Backend Engineer in London Kurt Geiger

Our Tech Stack: We use a variety of tools and technologies but you are not expected to have worked with all of them. Our technology stack includes: NodeJS TypeScript React GraphQL Amazon Web Services Mulesoft PHP Snowflake </ ...

Senior Backend Engineer Distributed Data Platform

A leading data and AI company in London is seeking an experienced Software Engineer to enhance their Lakehouse Platform. The role focuses on building reliable and secure services for data storage and access, requiring 8+ years of experience in Java, Scala, C++, or similar. Candidates should possess a BS in Compu ...

Senior Backend Engineer FinTech AI Platform

A leading AI solutions provider in Greater London is seeking an experienced Senior Backend Engineer to design and implement robust backend systems. You will tackle technical challenges in AI and finance, collaborating with diverse teams to ensure secure and compliant processing of sensitive financial data. This ...

Backend Engineer, AI Platform – Equity Options

An innovative AI company in London is seeking a passionate Backend Engineer to develop and maintain scalable backend systems for their cutting-edge AI products. In this role, you will work closely with cross-functional teams to ensure high performance and reliability across systems. Ideal candidates will have a ...

Staff Engineer & Team Lead Backend & Architecture

A leading fintech company is seeking a Staff Engineer to lead and inspire engineering teams at their London office. The role includes coaching team members, overseeing complex projects, and contributing to a robust platform built primarily in Java. This position offers a collaborative environment and emphasizes ...

Lead Backend Engineer: Scale, Microservices & Impact

A leading insurance technology firm is looking for a Lead Backend Engineer to shape the future of their platforms. You will lead teams to design Python microservices, drive architectural discussions, and mentor other engineers. Ideal candidates have a strong background in backend engineering and experience build ...

Founding Backend Engineer – Equity & AI Ventures

A leading AI venture studio in the London Area seeks a Founding Engineer for backend development. You will shape services through implementing features, managing tech debt, and ensuring quality. The role requires 3-6+ years of experience, strong skills in Python and databases, and the ability to drive developmen ...

Backend Engineer – Real‑Time Energy Platform

A well-funded green energy startup is looking for an Entry-level Backend Engineer in London. You will play a critical role in architecting digital infrastructure for a cutting-edge energy platform, focused on global decarbonization. This position offers a unique opportunity to work on innovative technology in th ...

Lead Backend Engineer — REST Microservices, Hybrid

A leading recruitment agency is seeking a Staff Backend Engineer in Central London. The ideal candidate will have at least 4 years of experience in backend development, strong skills in TypeScript and Node.js, and a proven track record in designing REST microservices. This role offers a salary up to £95,000 plus ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing firm in Greater London seeks a Senior Backend Engineer to design and develop backend systems across its platform. In this hands-on role, you'll implement scalable and secure services, ensuring high engineering standards. Ideal candidates will have expertise in Python, FastAPI, and clou ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing firm in the UK is seeking a Senior Backend Engineer to lead the design and development of backend systems across OneSuite. This hands-on role requires expertise in Python and modern development patterns. The ideal candidate will collaborate cross-functionally to ensure systems are scal ...

Senior Backend Engineer — Architect Scalable Microservices

A global marketing and communications company is seeking a Senior Backend Engineer to lead the design and development of backend systems. This role involves writing high-quality code, architecting distributed services, and collaborating closely with teams. Candidates should have a strong background in Python and ...

Staff Backend Engineer (TypeScript) Microservices Leader

A leading recruitment agency is seeking a Full Stack TypeScript Staff Engineer to lead backend development in the financial services sector. You'll design scalable REST microservices and mentor engineering teams while promoting best practices. The ideal candidate has at least 4 years of backend development exper ...

Backend Software Engineer — TypeScript / Node.js / APIs

Elliptic builds AI-powered compliance and risk intelligence tools that help organizations investigate blockchain transactions and detect financial crime. Their platform processes large-scale blockchain data to enable faster, more accurate decision‑making for compliance teams. This role sits within t ...

Senior Backend Engineer – Trading Systems & Cloud

TP ICAP Group is looking for a Senior Back-End Engineer in Greater London. In this role, you will design and maintain high-performance, data-intensive applications and APIs, ensuring system reliability while collaborating with architects and stakeholders. The ideal candidate will have substantial experience in t ...

Senior Backend Engineer (Node) & React Native

A leading financial services group in Greater London is seeking a Senior Backend Engineer to join their engineering team. The role requires expertise in React Native and focuses on building high-quality features, resolving bugs, and addressing technical debt. Ideal candidates should have at least three years of ...

Staff Backend Engineer Python/Go, Kubernetes

A leading tech firm located in Greater London is seeking a Staff-Level Full-Stack Software Engineer. The role emphasizes strong expertise in building secure backend systems using Python and/or Go. Familiarity with containerized services, particularly Kubernetes, is vital. This position offers a competitive salar ...

Senior Backend Engineer — AI Platform & Microservices

A leading media company in Greater London is seeking a Senior Backend Engineer to join their Emerging Tech team. The role focuses on building backend systems for a multimodal AI platform, requiring expertise in TypeScript or Python and experience with cloud platforms such as GCP. Responsibilities include develop ...

Backend Engineer (Fintech) Scalable Banking Infra

A fintech company in London is seeking a Backend Engineer to enhance their financial infrastructure. You will design and implement robust systems, ensuring compliance and security in a fast-paced environment. This entry-level role offers an opportunity to contribute to impactful projects in a dynamic team. Candi ...

Senior Go Backend Engineer — Scale Microservices

A leading technology firm in Greater London is looking for a Senior Backend Engineer to take technical ownership of key product areas. You will architect and build resilient Go services, mentor junior engineers, and lead initiatives that scale the platform to millions of users. Ideal candidates have experience w ...

Senior Backend Engineer Production Scale Microservices

A leading media and streaming company is seeking a Mid–Senior Backend Engineer to build and support APIs and microservices in production. The ideal candidate will have strong production exposure and experience with Python and AWS technologies. Responsibilities include developing backend systems, debugging real-t ...

🚀 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

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