277,222+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies 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

Senior Software Engineer, Core SDKs (Kotlin Multiplatform)

Speechify is seeking a Senior Software Engineer for its Core Experiences Team in Birmingham, United States. This role involves building and maintaining APIs and SDKs that enhance the product experience. Candidates should excel in systems thinking and collaboration, with a strong focus on using Kotlin Multiplatfo ...

Senior Spark/ADA Software Engineer — Safety Critical

Capgemini is seeking a Software Engineer to join its High Integrity Software team in Bath, England. You will work with a diverse group of experienced engineers to develop software for safety-critical applications in sectors such as Aerospace, Defence, Rail, Automotive, and Energy. Key responsibilities include le ...

Edge Sensor Software Engineer – Marine AI & Radar

SRT Marine Systems plc based in Bristol is seeking an experienced Senior Software Engineer – Sensors to join our Edge Team. The successful candidate will design and maintain edge-sensor solutions, focusing on performance and reliability. Key responsibilities include developing test infrastructures and collaborat ...

Senior Spacecraft Software Engineer GNSS & Data Pipelines

A leading aerospace technology firm is seeking a Spacecraft Software Engineer to develop and maintain software for satellite GNSS missions. The role involves working with C++ and Python, developing scientific software, and collaborating with various teams to ensure high-quality data delivery. Candidates should h ...

Software Engineer (Mid/Senior) – Embedded, AI & Cloud

One Big Circle Ltd in the West of England is looking for a Software Engineer at mid to senior levels. The role involves designing, developing, and maintaining software solutions while collaborating with teams to achieve system integration. Candidates should have 3+ years of experience, proficiency in C++/Python, ...

Senior Software Engineer – Simscape: Hybrid Work & Modeling

A leading technology company in the United Kingdom is seeking a Software Engineer for their Physical Modeling team. The ideal candidate will have expertise in C++ and experience with engineering systems. Responsibilities include developing simulation methods, managing software development processes, and interact ...

Senior AI Software Engineer – Claims Tech & Automation

Trinity-Claims in Tonbridge is seeking a skilled AI Developer to enhance their claims management systems through AI initiatives. The ideal candidate should have strong experience in C#, ASP.NET, and must demonstrate effective communication with stakeholders. This position offers a salary range of £65,000-70,000 ...

Senior Software Engineer (Full Stack and Backend)

Senior • London, Barcelona, Edinburgh and Berlin Responsibilities Pragmatism and obsession for simplicity, efficiency, and performance Extensive experience in similar roles building technically complex products in any web programming language An expert level at server-si ...

Senior Software Engineer Graph Analytics for Snowflake

About Neo4j Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise‑ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy‑to‑ ...

Senior Software Engineer ML Platform & Scalable Backend

Your Mission As part of the Communications Mining team, you'll be responsible for building and maintaining our backend and ML serving services. This includes a highly available public API, data-aggregation services and real-time pipelines to support and scale our machine learning models. The stack i ...

Senior Embedded Software Engineer Hybrid UI/OS

A leading streaming company in the United Kingdom is seeking a Senior Software Engineer, Embedded to contribute to embedded UI development and algorithm implementation. The ideal candidate will have strong C++ experience, knowledge in UI frameworks, and relevant skills in embedded systems. This role offers visib ...

Lead Automation Software Engineer for Bespoke Machinery

Mpac Group in Tadcaster is seeking a Senior Software Engineer to lead automation software delivery for bespoke machinery projects. Responsibilities include developing Software Design Specifications, leading commissioning activities, and mentoring junior engineers. The ideal candidate should have advanced experie ...

Senior Software Engineer – AI Driven Inspection Platform

PassFort in London is seeking a technical specialist to design innovative inspection software. You will work closely with users to understand their needs and develop solutions that integrate AI effectively. With a competitive salary of £120,000 - £150,000 plus equity, PassFort encourages a collaborativ ...

Senior Software Engineer AI Voice & Customer Platform

Elyos AI is looking for a founding engineer to shape the future of customer service with AI agents. In this role, you will build core product features using Python or TypeScript, work directly with customers to deliver tailored solutions, and drive the use of best practices for quality. Ideal candidate ...

Senior Software Engineer AI Driven Event Platform

A technology company is seeking a Senior Software Engineer to work on an AI-powered event platform. You will be responsible for delivering features using modern software practices and mentoring team members. The ideal candidate should have significant experience with production-grade software and AI, along with ...

Senior Software Engineer AI Platform & Data Pipelines

ZEREN is hiring a Senior Software Engineer to play a vital role in developing the core platform of their AI startup. You will be responsible for building data integrations and enhancing platform performance. This position allows you to make a significant impact on technology that changes how teams use data. < ...

AI Native Senior Software Engineer (Hybrid London)

Axon in London is seeking an experienced software developer to lead the creation of groundbreaking AI-driven products. The ideal candidate will have over 7 years of software development experience, strong AI-native delivery capabilities, and the ability to work effectively in a hybrid environment. This ...

Senior Software Engineer — Python/Django, Own Backend

A financial services firm in Greater London is seeking a skilled software engineer to develop and enhance their investment reporting platform. The successful candidate will have over 5 years of experience with Python and Django, be involved in the full software life cycle, and collaborate with various teams. Thi ...

Senior Software Engineer Full‑Stack, Impact & Equity

Ashby is seeking a full-stack engineer to join our engineering team in Oxford, United Kingdom. You'll work on crucial features such as automated interview scheduling and user-facing filter architectures. The ideal candidate is ambitious, collaborative, and comfortable across the tech stack. We're offering a comp ...

Senior Software Engineer II Wise for Enterprise

Senior Product Engineer II We’re looking for a Senior Product Engineer II to join our Wise for Banks team and help shape the technical direction of the systems powering Wise’s global payment network. In this role, you’ll operate at the intersection of engineering, product, and partnerships by dri ...

Senior Software Engineer Full‑Stack, Performance‑First

Europython is looking for a Senior developer to work in London, Barcelona, Edinburgh and Berlin. The ideal candidate will have a strong pragmatism and obsession for simplicity, efficiency, and performance, along with extensive experience in building technically complex products in any web programming language ...

Senior Software Engineer Open Source Cambridge, UK

Riverlane’s mission is to master quantum error correction (QEC) and unlock a new age of human progress. From advances in material and climate science, to complex chemistry simulation for new drug design, quantum computers will help humanity solve some of its most important challenges. But without Q ...

Senior Software Engineer — Public Sector Impact (Remote)

Made Tech is hiring a Senior Software Engineer to work across the UK government in transforming public sector technology. You will be responsible for writing high-quality software, mentoring team members, and contributing to the delivery of key projects that impact society. The ideal candidate will have a strong ...

Datasets Software Engineer Sensors, Algorithms and Detections

Overview Datasets Software Engineer (Contractor) to support data calibration and standardization workflows for a cutting-edge AI and Robotics end customer. You will play a critical role in building robust pipelines that unify and align data from a variety of sensors, contributing directly ...

Senior Software Engineer Quantum Safe Encryption (Python)

A leading cybersecurity firm located in Belfast is seeking a Senior Python Developer to enhance their Encryption Intelligence technology. The ideal candidate will have significant commercial experience and a deep understanding of Python programming. Responsibilities include developing robust software solutions a ...

Senior Software Engineer Cyber & AI Mission Critical

Copello Global in Manchester is looking for a Software Engineer to work on innovative projects in Cyber and Intelligence. This position offers a hybrid working model, blending on-site and remote tasks, allowing for flexibility while contributing to critical security solutions. The ideal candidate will ...

Senior Software Engineer Elixir/Phoenix & Rails (Remote)

A technology company in the United Kingdom is seeking a Senior Software Engineer to enhance their software solutions aimed at connecting college babysitters with families. The role requires strong expertise in Elixir and Phoenix, as well as Ruby on Rails and mobile app development. Join a remote-friendly team an ...

AI Native Senior Software Engineer — Hybrid London

Artlogic is seeking a Senior Software Engineer to evolve their platform and guide technical direction. This role involves hybrid working based in London, requiring attendance at the office at least twice a week. The ideal candidate has significant experience in building cloud-based systems and is profi ...

Lead Back end Software Engineer (EO Workflows)

Requirements Strong backend engineering experience working on complex, distributed systems in production environments ,High ownership and autonomy with a proven ability to independently drive technical and product decisions in ambiguous problem spaces ,Product mindset with e ...

Senior Software Engineer, Risk Platform — Quantitative Tech

A prominent trading firm in London is seeking a Senior Software Engineer to enhance their Risk Technology team. This role involves designing and maintaining applications that calculate portfolio sensitivities and value-at-risk across multiple asset classes. The ideal candidate will have strong programming skills ...

Senior Software Engineer Hybrid Build Impactful Tools

A leading tech company is seeking a Senior Software Engineer to design and build innovative tools and platforms. This role involves delivering scalable solutions, championing best practices, and integrating data into insightful tools. Candidates should possess strong skills in JavaScript/TypeScript, Python, and ...

Lead Software & Platform Engineer: Cloud, AI & Data

A global financial markets infrastructure provider in London is looking for a Lead Product Engineer. This role requires technical leadership and expertise in data engineering, particularly with AWS and Snowflake. Responsibilities include mentoring teams, designing cloud-based solutions, and leading AI integratio ...

Senior Software Engineer Full‑Stack, Performance‑First

Europython is looking for a Senior developer to work in London, Barcelona, Edinburgh and Berlin. The ideal candidate will have a strong pragmatism and obsession for simplicity, efficiency, and performance, along with extensive experience in building technically complex products in any web programming language ...

Senior Software Engineer AI Platform (Remote/Hybrid)

Vermillion Analytics is seeking a Senior Software Engineer with expertise in Python backend development and a passion for solving complex technical challenges. You will own the delivery of features from start to finish, make architectural decisions, and mentor junior engineers. Flexible working arrangements a ...

Senior Software Engineer – Data Visualisation & Graphics | London

Senior Software Engineer | Data Visualisation & Graphics | London London (Hybrid) Salary up to £200,000 + benefits Most engineers consume visualisation libraries. A small number build them. We’re working with a highly ...

Lead Software Engineer Python (Django) SC Cleared

Lead Software Engineer - Python (Django) - SC Cleared - Contract Rate : Up to £750 per day (Umbrella)Duration : 12 monthsLocation : 40% office based (London, Manchester, Birmingham, Cardiff, North East)IR35 : InsideSe ...

Senior Software Engineer, Portfolio Management High Impact

An innovative global hedge fund is seeking a passionate Full Stack Developer to join their dynamic team. This exciting role offers the chance to work closely with business users, tackle Big Data challenges, and continuously learn the latest technologies. As part of a collaborative culture, you will design and bu ...

Embedded Software Engineer C++ & Bare Metal (Hybrid)

A leading aerospace and defence company in Southampton is seeking talented software engineers to join their Integrated Sensors & Protection line. This role supports various defence projects, offering opportunities for personal and professional growth in an inclusive environment. Candidates will benefit from a co ...

Real Time Embedded Software Engineer Hybrid (Reading)

A leading satellite communications company based in Reading is seeking a Junior Embedded Software Engineer to develop and test embedded software for their innovative terminal products. Candidates should have experience in C++ and a drive to work in a collaborative Agile environment. This role offers a full-time ...

Actemium Automation Huddersfield Senior Software Controls Engineer

Permanent, Full‑time Competitive Salary + Bonus + EV Car & Share Scheme + Healthcare + Pension + Benefits Senior Software Controls Engineer Huddersfield You’ll join Actemium Automation Huddersfield, part of VINCI Energies, as a Senior Software Contr ...

Lead Software Engineer – Backend & APIs (Node/TypeScript)

Java Script Works in Windsor is seeking a Software Engineering Lead. The ideal candidate will be comfortable leading strategy while still being engaged in architecture and implementation. Relevant experience with JavaScript, Node.js, SQL, and cloud infrastructure is essential. This full-time position offers a co ...

Field‑Facing Software Engineer – Drive Customer Impact

Aglide in Greater London is looking for a dedicated software engineer to improve customer onboarding and automate support processes. You'll work closely with clients to configure Aglide for their applications and troubleshoot technical issues. The ideal candidate will possess software experience, excel ...

Software Controls Engineer – PLC/SCADA, Flexible Hours

A leading automation firm in Waterlooville is seeking a Software Controls Engineer to drive innovative automation projects. The role requires practical experience with PLC, SCADA, and HMI systems, as well as a relevant engineering qualification. The position offers a competitive salary plus a range of benefits, ...

Principal Control Engineer – Gas Turbine Software Lead

MPI Limited is seeking a Principal Control Engineer to lead control system activities based in Lincoln, England. The role focuses on developing software engineering control solutions for retrofit projects, involves direct customer interaction, and oversight of system integration and testing. Candidates should ha ...

Underwater Robotics Software Engineer — Real‑Time & Backend

Advanced Resource Managers Ltd is seeking a talented software developer to join their underwater robotics team in Fareham, England. In this critical role, you will design and implement software solutions for advanced subsea vehicles, leveraging your strong expertise in C++. You will be responsible for enhancing ...

Senior Software Engineer Greenfield C# | Maritime Tech

OSI Maritime Systems is seeking a seasoned Desktop C# Server Side Software Engineer in Waterlooville, UK. The role involves rapidly creating a Greenfield product, developing a Common Framework, and participating in various tests. Ideal candidates possess a relevant degree and at least 6 years of experience in so ...

Space Systems Software Engineer — Onboard & Ground Testing

MDA Space in Stevenage is seeking a Software Engineer to design and develop innovative software solutions for space technology. You will work with a talented team to create cutting-edge on-board and ground test software. Ideal candidates will have experience in C/C++ development, a strong background in ...

Senior Software Engineer, Fixed Income Risk Platform

Morgan-Stanley is currently seeking a Senior Developer for Fixed Income Derivatives Technology in Greater London. This role involves developing and maintaining systems that support business needs, particularly in Interest Rates Derivative trading. As a lead software engineer at Vice President level, yo ...

Python Software Engineer – CI/CD & Agile Delivery

A leading telecommunications company in the UK is seeking a Software Development Specialist to enhance operational processes. In this role, you will develop scalable software solutions in Python and work in a dynamic team using Agile methodologies. The position requires strong programming skills, problem solving ...

Software and Systems Test Coordination Engineer J37226496

Job Title: Software and Systems Test Coordination Engineer Location: Gaydon, Warwickshire Rate: £33.88ph via an Umbrella Company (Inside IR35) or £25.26ph on a PAYE basis Employment Type: Contract (Currently financed until March 2027) Hours ...

🚀 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

    Buffering Video...

    Fullstack Software Engineer Java React Aws Jobs in United Kingdom Job Search Guide, Trends and Insights