6,427+ Iot Backend Developer Java Jobs in London, UK — Local Employers Hiring June 2026

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

Java Backend Developer

Location: London Job Type: Contract Industry: Engineering Job reference: BBBH437302_1778850078 Posted: about 5 hours ago Senior Backend Java Engineer (SC)Location: Fully Remote Contract: 6 Months IR35 Status: Inside IR35We are currently seeking a Senior Backend ...

Java Backend Developer

Location: London Job Type: Contract Industry: Engineering Job reference: BBBH437302_1778850078 Posted: about 5 hours ago Senior Backend Java Engineer (SC)Location: Fully Remote Contract: 6 Months IR35 Status: Inside IR35We are currently seeking a Senior Backend ...

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 ...

Backend Java Engineer

Java Engineer – Backend & Search PlatformLocation: London, UK**PLEASE NOTE SPONSORSHIP IS NOT PROVIDED FOR THIS ROLE - MUST HAVE FULL RIGHT TO WORK IN THE UK **About the RoleYou’ll be working on a large‑scale backend platform that powers advanced search, data processing, and h ...

Backend Java Engineer

AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies.Our Contingent Workforce Solutions (CWS) is one of our serv ...

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 ...

Backend Java Engineer

Java Engineer – Backend & Search PlatformLocation: London, UK**PLEASE NOTE SPONSORSHIP IS NOT PROVIDED FOR THIS ROLE - MUST HAVE FULL RIGHT TO WORK IN THE UK **About the RoleYou’ll be working on a large‑scale backend platform that powers advanced search, ...

Backend Java Engineer

Java Engineer – Backend & Search PlatformLocation: London, UK**PLEASE NOTE SPONSORSHIP IS NOT PROVIDED FOR THIS ROLE - MUST HAVE FULL RIGHT TO WORK IN THE UK **About the RoleYou’ll be working on a large‑scale backend platform that powers advanced search, ...

Backend Developer

Job Description:As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration.Key Responsibili ...

Backend Developer

One of the UK's largest media distributors is looking for a Backend Developer to be a large cog in their development wheel. The team you'll be joining is quite small so this is a great opportunity to showcase your skills and make an impact at this Central-London-based company.They are looking for someo ...

Backend Developer

One of the UK's largest media distributors is looking for a Backend Developer to be a large cog in their development wheel. The team you'll be joining is quite small so this is a great opportunity to showcase your skills and make an impact at this Central-London-based company.They are looking for someo ...

Staff Backend Engineer (Java)

About ZepzZepz is the group powering two leading global remittance brands: WorldRemit and Sendwave. Since 2010, we have been disrupting an industry previously dominated by offline legacy players with our relentless focus on reducing the cost of remittances and increasing safety and ...

Staff Backend Engineer (Java)

About ZepzZepz is the group powering two leading global remittance brands: WorldRemit and Sendwave. Since 2010, we have been disrupting an industry previously dominated by offline legacy players with our relentless focus on reducing the cost of remittances and increasing safety and ...

Java Developer Fintech

Java Developer / Backend Engineer London / WFH to £100kDo you have expertise with backend core Java development?You could be progressing your career in a senior, hands-on Java Developer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top e ...

Java Developer Fintech

Java Developer / Backend Engineer London / WFH to £100kDo you have expertise with backend core Java development?You could be progressing your career in a senior, hands-on Java Developer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top e ...

Java Developer

Job Title: Senior Backend EngineerJob DescriptionJoin our dynamic team as a Senior Backend Engineer in the Banking domain, where you will play a crucial role in delivering innovative solutions. Collaborate with product owners and business stakeholders to transform written requirements into robust, well-engin ...

Java Developer

**Discover your future at Citi** Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. **Job Ov ...

Java Developer

Job Title: Senior Backend EngineerJob DescriptionJoin our dynamic team as a Senior Backend Engineer in the Banking domain, where you will play a crucial role in delivering innovative solutions. Collaborate with product owners and business stakeholders to transform written requirements into ...

Java Developer

We are looking for a Mid-Level Java / .NET Developer with strong Azure experience to contribute to the delivery of digital services for the public sector. You'll work as part of a collaborative team building solutions that serve citizens, writing clean, well-tested code and growing your skills in a supportive ...

Java Developer

Java Developer – London – £400-420/day(Java, Azure, GraphQL, Kafka)We’re working with an industry leading consultancy client that are looking for a proficient Java developer to join them for a an initial 6-month contract to help with one of key clients. This person will be tasked with workin ...

Java Developer

We are looking for a Mid-Level Java / .NET Developer with strong Azure experience to contribute to the delivery of digital services for the public sector. You'll work as part of a collaborative team building solutions that serve citizens, writing clean, well-tested code and growing your sk ...

Java Developer

Description Position at WorldFirst Introduction:We’re WorldFirst, an international payments business helping move money around the world. We became part of Ant Group in 2019, accelerating our mission to create the world’s best platform for international trade by combining WorldFirst’s produc ...

Java Developer

Role:                                    Java DeveloperLocation:     &nbs ...

Java Developer

Location: UK (Hybrid / Onsite as required)Experience: 2–5 yearsRole Type: Fixed Term ContractOverviewWe are building a modern Data Fabric platform that enables the ingestion ...

Java Developer

Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job O ...

Java Developer

Location: UK (Hybrid / Onsite as required)Experience: 2–5 yearsRole Type: Fixed Term ContractOverviewWe are building a modern Data Fabric platform that enables the ingestion ...

Java Developer

Description Position at WorldFirst Introduction:We’re WorldFirst, an international payments business helping move money around the world. We became part of Ant Group in 2019, accelerating our mission to create the world’s best platform for international trade by combining WorldFirst’s produc ...

Java Developer

Role:                                    Java DeveloperLocation:     &nbs ...

Java Developer

We are looking for a Mid-Level Java / .NET Developer with strong Azure experience to contribute to the delivery of digital services for the public sector. You'll work as part of a collaborative team building solutions that serve citizens, writing clean, well-tested code and growing your skills in a supportive ...

Java Developer

Job Title: Senior Backend EngineerJob DescriptionJoin our dynamic team as a Senior Backend Engineer in the Banking domain, where you will play a crucial role in delivering innovative solutions. Collaborate with product owners and business stakeholders to transform written requirements into ...

Java Developer

Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job O ...

Java Developer

We are looking for a Mid-Level Java / .NET Developer with strong Azure experience to contribute to the delivery of digital services for the public sector. You'll work as part of a collaborative team building solutions that serve citizens, writing clean, well-tested code and growing your sk ...

Java Developer

Java Developer – London – £400-420/day(Java, Azure, GraphQL, Kafka)We’re working with an industry leading consultancy client that are looking for a proficient Java developer to join them for a an initial 6-month contract to help with one of key clients. This person will be tasked with workin ...

Backend Software Engineer Java Fintech

Backend Software Engineer / Developer London / WFH to £100kDo you have expertise with backend core Java development?You could be progressing your career in a senior, hands-on Java Developer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs t ...

Backend Software Engineer Java Fintech

Backend Software Engineer / Developer London / WFH to £100kDo you have expertise with backend core Java development?You could be progressing your career in a senior, hands-on Java Developer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs t ...

Principal .NET Backend Engineer | IoT Systems + Equity

A leading IoT technology firm is seeking a highly skilled Principle and Senior Backend Engineer (.NET) to design and develop critical backend services for IoT products. The role involves building scalable systems, ensuring high automated test coverage, and collaborating with various teams to create secure soluti ...

Backend Python Developer

We are working with a unique company that helps businesses automate regulatory compliance in the financial industry.The company is at the cusp of the growth where they have registered incredible growth in the last 5 years and looking for a dynamic Backend Engineer who can help them solve interestin ...

Lead Backend Developer

We are exclusively working with an exciting Branding company who are shaping the Entertainment/Media industry with their innovative and analytics technology platform. As a business they thrive of the start to finish attitude, someone who isn't afraid to get their hands dirty and solve complex problems, h ...

Python Backend Developer

Job Title: Python Backend Developer Job Type: Contract Job Location: London , UK Job Description: Python Backend Developer: We need a senior developer with extensive knowledge on building scalable python ...

Backend Software Developer

Trayport is actively looking for a Software Developer to join our team for the design and development of our flagship data analytics platform where you will contribute to system architecture, aid colleagues to help coordinate our projects and review code too. Our platform ingests hundreds of millions of data poi ...

Senior Backend Developer

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

Python Backend Developer

At Mustard Systems, we leverage statistical modeling to dive into sports events and help us make informed predictions about future outcomes. By utilising our unique datasets, advanced statistical models, and custom-built software, we strive to accurately forecast sports results.We value quick de ...

Senior Backend Developer

At  , we’re creating innovative learning products that empower people to master IT professions like software engineering, data science, business intelligence, and QA — no matter their ...

Backend Python Developer

We are working with a unique company that helps businesses automate regulatory compliance in the financial industry.The company is at the cusp of the growth where they have registered incredible growth in the last 5 years and looking for a dynamic Backend Engineer who can help them solve interestin ...

Senior Backend Developer

Join Tether and Shape the Future of Digital FinanceAt Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reser ...

Python Backend Developer

At Mustard Systems, we leverage statistical modeling to dive into sports events and help us make informed predictions about future outcomes. By utilising our unique datasets, advanced statistical models, and custom-built software, we strive to accurately forecast sports results.We value quick de ...

🚀 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

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