326,015+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Ground Control Software Engineer | Real Time Qt/C++

SR2 | Socially Responsible Recruitment | Certified B Corporation™ is seeking a Ground Software Engineer in Newbury, UK, to lead the development of our Ground Control Station software. This role involves creating high-performance operator interfaces and integrating real-time data streams for autonomous platfor ...

Software Engineer Python/Django/Flask in Newbury OxSource

Software Engineer – Python/ Django/Flask Newbury, United Kingdom Posted 9 months ago An established Earth Observation and Mapping Software company based in Berkshire is looking for a Software Engineer with web-based Python skills (Python or Flask) to join the team. <h3 ...

System Software Engineer in Test AI Driver QA

Graphcore is seeking a System Software Engineer in Test to work on groundbreaking AI technologies. Join the Drivers QA team to ensure high-quality performance of next-gen products. The ideal candidate has 3+ years of experience validating Linux kernel/device drivers, proficiency in C++/Python, and fami ...

Senior Software Engineer, Martech Content & AI Platform (Hybrid)

bet365 is seeking a Senior Software Developer in Manchester to join our Martech Content team. In this pivotal role, you will collaborate with a talented group of professionals dedicated to enhancing our state-of-the-art Martech Content Platform. Your responsibilities will include leading development ef ...

Low Latency C++ Software Engineer for Trading Platform

DRW, a leading trading firm, is seeking a Software Engineer with expertise in C++ to join their London office. This role involves working within the Core Infrastructure team, focusing on the development and maintenance of DRW's low latency trading platform. The ideal candidate will have over 5 years of ...

Senior Software Engineer, Core Experiences Edinburgh, United Kingdom

Mission Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone. We absorb it all and let you listen to it at your desk, on the go, at your own speed, and with tools that make learning easier, deeper, and faster. ...

Senior Software Engineer – Python & C# for Semantic Search

LexisNexis Risk Solutions is looking for a Software Engineer III (Python & C#) to architect and build complex systems in Farringdon, UK. You will develop a semantic search API and maintain tools, ensuring quality at every step through code reviews and best practices. The ideal candidate will have profi ...

Backend Engineer (Cloud Server, £65k, Computer Software, London)

We have an exciting opportunity for a Backend Engineer role in a computer software company that is based in California. The company has been recognised as one of the Best Startups and is looking for a suitable person for the Backend Engineer role whose initial responsibility will be to develop an integra ...

Front End Software Engineer, Console in London evroc

Front End Software Engineer, Console Location: London, United Kingdom Posted: 9 months ago Company: evroc – a pioneering company dedicated to building hyperscale cloud infrastructure, focusing on security, sovereignty, and sustainability to enhance Europe’s digital ...

Senior Software Engineer in Test (SDET / Automation / SET)

Senior Software Engineer in Test (SDET / Automation / SET) Senior Software Engineer in Test (SDET / Automation / SET) Get AI-powered advice on this job and more exclusive features. Direct message the job poster from Eden Scott Experienced Tech Recruiter with extensive experien ...

Senior Software Engineer – AI‑Driven Event Platform (Remote)

A leading event platform company is seeking a Senior Software Engineer to own features from inception to completion. This role emphasizes a hybrid work environment and offers significant career development opportunities. Candidates should have experience with modern languages and frameworks, AI competencies, and ...

AI Driven Software Engineer: Build AI Platforms & Systems

The British Intelligence Agencies are seeking a Software Engineer to enhance operations with Artificial Intelligence (AI) solutions. In this role, you'll contribute to integrating today's AI capabilities, support technical excellence, and mentor junior engineers. British citizenship or dual nationality ...

Lead AI Software Engineer — LLM Driven Production Systems

Aurora Energy Research in Oxford is seeking a Lead Software Engineer to manage teams and deliver impactful software solutions. You will develop systems leveraging LLMs that influence the decarbonisation of energy grids globally. The ideal candidate will have extensive experience in backend system devel ...

Lead Software Engineer: Cloud Native & AI Platform Leader

PayPoint is looking for a Lead Software Engineer to provide technical leadership to the Platform team. You will oversee development and guide cross-functional teams in adopting best practices in a cloud-first environment. This role involves mentoring team members and ensuring high-quality software delivery. < ...

Senior Software Engineer – AI‑Driven Global Payments Platform

HireQ Talent is seeking Senior Software Engineers (Level 1 & Level 2) in Portsmouth to build a state-of-the-art global payments platform. This hybrid role offers a unique opportunity to work with cutting-edge AI and fintech innovations, addressing complex challenges and driving improvements in system performa ...

Mid Level Software Engineer (Python) RegTech 2026 UK

Suade is building world‑leading regulatory technology aimed at preventing the next financial crisis. Our success is built on the ability of our engineers to work hand‑in‑hand with domain experts, translating concepts from finance and regulation into code. The RegTech Engineer is at the core of this and is ...

Senior Embedded Software Engineer Critical Comms (C/C++)

Sepura Ltd, based in Waterbeach, Cambridge, is seeking a Senior Embedded Software Engineer to join their R&D team. This role focuses on developing innovative handheld mobile radio systems crucial for first responders, promoting a stable communication backbone during crises. The ideal candidate will hav ...

Senior Software Engineer Digital Twin for Sustainable Buildings

Max Fordham LLP is seeking a Senior Software Developer to enhance its digital capabilities in engineering and consultancy. The role involves developing software tools and delivering insights from complex datasets to support digital transformation in the built environment. Suitable candidates should pos ...

Senior Software engineer AI Freelance 12 months contract

Who we are:We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £ billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple ...

Senior Software Engineer — AI/ML Backend & Data Pipelines

Datalex is seeking a Senior Software Engineer specializing in Python-based AI/ML development to design and deploy machine learning features. The role involves building APIs, collaborating on CI/CD, and mentoring Junior Engineers. Candidates should have 8+ years of experience, strong knowledge of AI technologies, ...

Senior Software Engineer — End to End, AI Driven

Opus 2 in Edinburgh is seeking a Senior Engineer to lead complex projects and enhance team capability. This role focuses on full-cycle engineering with an emphasis on using AI tools effectively. You'll shape the engineering strategy and mentor others, with a commitment to quality and operability in a fast-pac ...

Senior Lifting System Software Engineer Hybrid (C#/SQL)

Big Red Recruitment is searching for a Senior Software Engineer to help their leading Motorsport team enhance business-critical lifing systems. This role involves software development, systems support, and stakeholder engagement, focusing on creating solutions that add genuine business value. Key respo ...

Staff Software Engineer: Build Scalable, AI Driven Systems

Performativ, a fintech scaleup in Greater London, is seeking a Staff Software Engineer to tackle complex technical challenges and drive system improvements. This role involves designing robust distributed systems that operate at scale and leveraging AI tools for efficiency. The ideal candidate will pos ...

Senior Software Engineer — Hybrid (Payments Tech) & Tech Lead

Edenred PayTech seeks a Senior Software Engineer to join their hybrid team in Swindon/London. The role involves designing, implementing, and testing new features while mentoring junior engineers, contributing to technical excellence, and ensuring adherence to quality standards within a fast-paced environment. En ...

Senior Staff Software Engineer Unity Catalog Runtime Enforcement

RDQ127R176 At Databricks, we are passionate about enabling data teams to solve the world's toughest problems — from making the next mode of transportation a reality to accelerating the development of medical breakthroughs. We do this by building and running the world's best data and AI infrastructu ...

Lead Software Engineer Drives Control for Megawatt Systems

GE Vernova is looking for a Lead Software Engineer for Drives Control Application in Rugby, England. You will develop Control Application Software for Electric Drive Systems, leading the entire product life cycle. The position requires UK citizenship and offers flexibility in the work environment along ...

Staff Software Engineer – AI‑Powered FinTech (Hybrid, London)

A leading technology company in Greater London is seeking a Staff Software Engineer to join its Financial Services team. You will engage in building innovative cloud-native applications while leveraging AI technologies to enhance operational efficiency and user experience. The ideal candidate will thrive in a fu ...

Rust Software Engineer — Elite Low Latency Systems (Hybrid)

Role: Software Engineer (Rust) Client: Elite Technology Company Compensation: Up to £200,000 + Bonus + Package Location: London (Hybrid Working) Overview This firm is an elite technology company wit ...

Software Engineer — Truth Seeking AI, Hands On Impact

A leading AI company in Greater London is looking for an exceptional software engineer to work on critical product challenges. The ideal candidate thrives in a meritocratic environment, possesses outstanding communication skills, and is passionate about creating truth-seeking AI. This role emphasizes initiative ...

Hybrid Real Time Software Engineer (C/C++/C#)

Software Engineer About ipTEST: ipTEST is a growing company in an exciting high technology area at the forefront of new developments powering the green revolution. We are a dedicated, engineering‑based organisation with the skills to meet the demanding needs of our growing custo ...

RISC V Systems Software Engineer (Rust/C & Compiler)

microTECH Global LTD in Cambridge is looking for a skilled engineer to develop RISC-V firmware and drivers. You will utilize your expertise in C or Rust, implement security tools, and analyze performance metrics. A degree in Computer Science or equivalent experience is required, along with strong problem-solving ...

Senior Software Infra Engineer Cloud, CI/CD & Kubernetes

About Graphcore Graphcoreis one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every indu ...

Mid Level Software Engineer (Python) RegTech 2026 UK

Suade is building world- leading regulatory technology aimed at preventing the next financial crisis. Our success is built on the ability of our engineers to work hand-in-hand with domain experts, translating concepts from finance and regulation into code. The RegTech Engine ...

Senior Staff Software Engineer Unity Catalog Runtime Enforcement

RDQ127R176At Databricks, we are passionate about enabling data teams to solve the world's toughest problems — from making the next mode of transportation a reality to accelerating the development of medical breakthroughs. We do this by building and running the world's best data and AI infrastructure pl ...

Software Engineer II: Cloud, OT & On Site Impact

A leading technology company in the United Kingdom is seeking a Software Engineer II to join their IT team. This full-time position requires expertise in cloud-based systems and strong collaboration skills, with responsibilities including software development, documentation, and continuous improvement of applica ...

Senior Software Engineer – Distributed Systems & AI‑Driven Banking

FIS in Greater London is seeking an experienced professional to help build next-generation AI-enabled banking platforms. You will design and implement complex systems such as transaction engines and ledgers while ensuring correctness and scalability. The ideal candidate has strong proficiency in Go or Rust and e ...

Senior Software Engineer – Unity/C#, Lead Features & Scale

Zynga seeks a Senior Software Engineer in Greater London to lead complex projects and develop scalable software solutions. You will mentor junior engineers while ensuring high standards of performance and security. A strong background in C#, Unity, and analytical skills is essential. The position offers a highly ...

Generative AI Research Software Engineer for 3D Animation

GOOGLE is seeking a Research Scientist to develop algorithms and models for 3D body shape estimation and generative animation. Ideal candidates will have a Bachelor's in Computer Science, 5 years of Python experience, and a focus on Machine Learning. This role contributes to the development of technologies for a ...

Mobile Software Engineer (£40,000–£45,000 + Equity) at Cauli

Mobile Software Engineer (£40,000–£45,000 + Equity) Company: Cauli – UK’s largest reusable packaging provider for the food service industry. Salary: £40,000–£45,000 + Equity Location: London, UK Job Description As our first dedicated mobil ...

Credit Core Software Engineer – PL/SQL (Senior/Mid)

Avaloq AG in Edinburgh is looking for skilled Software Engineers to join our global Credit Core Team. You will innovate and maintain our Core Product while collaborating with Tech Leads, Business Analysts, and other Software Engineers. This role emphasizes developing effective solutions and engaging with exte ...

Staff / Principal Software Engineer (Hardware Tools Automation/SRE)

The role Our GPU & AI Hardware IP teams need incredibly performant build and test workflows to help them deliver our upcoming IP roadmap – so we need a talented software engineer to help us build a revolutionary new automation system, and to keep our workflows running 24/7. This is a pion ...

Senior Data Scientist (Senior Software Engineer), BBC Verify

Senior Data Scientist (Senior Software Engineer), BBC Verify Permanent - Full Time Location: London, GB, W1A 1AA Job Reference: 20803Band: DSalary: Up to £70,000 plus London weighting depending on relevant skills, knowledge and experience.Contra ...

Senior Lead Software Engineer Python, Data, Cloud, AIML

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Senior Lead Software Engineer at JPMorgan Chase within the Commercial & Investment Bank's Markets Research Technology team, you serve as a seasoned member of an agile team to design ...

Software Engineer – Commercial Modification (Associate or Experienced level)

Job Description At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for every teammate that’s welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. The team ...

Mobile Software Engineer (£40k–£45k + Equity) at Cauli

Job Title Mobile Software Engineer Salary £40,000–£45,000 + Equity Company Description Cauli is the UK's largest reusable packaging provider, led by Forbes 30 Under 30 CEO Josephine Liang. They utilize IoT and AI-driven technology to replace single-use waste at ...

Software QA Engineer for Life Saving Therapies Platform

Autolomous in Greater London is seeking a Software QA professional to ensure the quality of our innovative software. You will assess software quality, create and execute test plans, and report issues, working both independently and within a team. This is an exciting opportunity to join a fast-paced sta ...

C# .NET Software Engineer | Production Systems, CI/CD

Manpower Group (UK) is seeking two C# .NET Software Engineers to join their team in Christchurch, Dorset. This permanent role offers a competitive salary along with bonuses and benefits such as pension and life assurance. The ideal candidates will be involved in designing, coding, and testing bespoke c ...

DTN Software Engineer — Remote UK, Shape Mesh Networks

A leading technology firm in the UK seeks a passionate DTN Software Engineer. In this role, you'll develop and maintain laser communication technologies and support cloud-based solutions for aerospace communications. The ideal candidate has experience with the DTN stack and distributed systems, and possesses str ...

Senior Software Engineer (C#/F#) Hybrid, Scalable FinTech

A fast-growing financial services organization is seeking Software Engineers to join their team in Cheadle Hulme. The role involves designing, developing, and maintaining robust systems using F# and Vue.js. Ideal candidates will have 5+ years of software development experience, strong C# proficiency, and a willi ...

Mobile Software Engineer Intern Paid 12 Weeks (Hybrid)

Roku, Inc. is seeking a passionate Software Engineer Intern to join our team in Manchester, UK. This paid 12-week internship will involve developing new features for our mobile apps and maintaining existing applications, all while working collaboratively with a dynamic team. The ideal candidate is enro ...

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