2,044,524+ Full Stack Software Engineer Javascript React Elixir Jobs in UK — Top Companies Hiring June 2026

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Security Cleared Platform Engineer – Cloud & Infra

Hamiltonian Dynamics, a growing technology company in London, is seeking a Platform Engineer to design and operate platforms that underlie secure software systems. The role emphasizes collaboration with software engineers and stakeholders and requires solid engineering fundamentals. Prospective candida ...

Senior C++ Real Time Systems Engineer (Hybrid)

SoCode Limited is seeking a Senior C++ Software Engineer to join their agile development team in Cambridge. The role involves developing cross-platform real-time communication products and requires significant experience in C/C++ programming on Linux. Candidates with a degree in Computer Science or equ ...

Senior Front End Engineer (Blazor/C#, UX)

Bright Software Group in Manchester is seeking a Senior Software Engineer with a strong front-end focus to join their development team. This hands-on role involves building production Blazor applications in C# and .NET while collaborating closely with the engineering team on UX. The ideal candidate wil ...

Senior AI Quality Engineer CI/CD & Automation

Writer is seeking a Software Quality Engineer to ensure the highest quality for AI-powered applications in Greater London. The successful candidate will play a crucial role in shaping the performance and reliability of our work orchestration platform, driving innovative testing strategies for enterprise-grade ...

Principal Embedded App Engineer — Mission Critical Radios

Sepura plc. is looking for a Principal Embedded Application Engineer to join their Software Team. This role focuses on developing embedded application software for digital radio products on embedded Linux and Android platforms. The ideal candidate will have over 10 years of experience in Linux and Andr ...

Platform Engineer Build Internal Tools & CI/CD Pipelines

Smart Communications group is searching for a Platform Engineer in the City of Westminster, UK, to join their Platform Engineering Group. The role involves designing and building internal tooling and pipelines for software development and deployment, ensuring the best developer experience. The company ...

Senior Node.js/TypeScript Engineer – Build Scalable FinTech APIs

A leading embedded investment platform in the UK is looking for a Senior Software Engineer to design, build, and operate reliable software solutions using Node.js and Typescript. You'll work collaboratively in cross-functional teams and own your services end-to-end. The ideal candidate has experience with AWS an ...

Lead Java Backend Engineer for Scalable, Secure Systems

A leading global financial services firm in Glasgow is seeking a Lead Software Engineer to join the Corporate Sector Credit Risk team. The position involves creating innovative technology solutions in an agile environment, focusing on secure and scalable software development. Candidates should have advanced expe ...

Senior Platform Engineer — AI Driven Materials Cloud

A leading technology firm in London is seeking a Senior Software Engineer to shape the core technology of their innovative materials platform. The successful candidate will have autonomy and influence in architectural decisions, collaborating closely with scientists and engineers. This role requires 5+ years of ...

Senior Pre Sales Solutions Architect — QA & AI

Tricentis UK Ltd. is seeking an experienced Pre-sales Solution Architect/Engineer to join our dynamic team in Greater London. In this pivotal role, you will lead discovery sessions with clients, taking technical charge during the sales cycle, ensuring successful outcomes for our software solutions. The ...

Senior Backend Engineer, Guest & Host — Europe

Airbnb in Greater London is seeking a skilled Software Engineer with expertise in backend development, particularly in Java and Kotlin. The role involves driving critical projects, mentoring junior engineers, and collaborating with cross-functional partners to optimize performance across Airbnb's platforms. Cand ...

Lead Platform Engineer, Shared Platforms (Hybrid)

Capital One is hiring a Lead Software Development Engineer in Nottingham. This role involves leading engineering teams to design and develop software features, ensuring high performance and security in cloud-based projects. You will be responsible for implementing solutions and driving best practices across t ...

GPU Software Architect: 3D API & Driver Innovation

Huawei Technologies Research & Development (UK) Ltd seeks an experienced Engineer specializing in GPU Software Architecture to join their Cambridge team. The successful candidate will design and develop new features for 3D graphics APIs such as Vulkan and DirectX, working closely with architects and development ...

Associate Product Engineer AI Driven Growth, Hybrid UK

A leading software security company is seeking an Associate Product Engineer to enhance our AI-native security platform. This hybrid role focuses on engineering customer feedback, automating processes, and driving product-led growth via innovative coding. The ideal candidate holds a recent degree in Computer Sci ...

Senior Android Search Engineer AI Driven Frontend

A leading global tech company seeks a Software Engineer III for their Search team in Greater London, UK. In this role, you will develop cutting-edge technology for the Android Google Search App, collaborating with cross-functional partners to enhance user experiences. You should have a Bachelor's degree with 2+ ...

Senior .NET Engineer – Real‑Time Distributed Systems

Genius Sports is seeking a Senior Software Engineer 1 (SR1) to join their Betting division in Greater London. You will work within a high-performing Agile team delivering innovative and intelligent products while tackling complex problems. Strong expertise in software development, particularly in object-orien ...

Senior C++ Engineer – Hybrid, Defence & Simulation

A rapidly growing consultancy firm in the UK is seeking a Senior Software Engineer specializing in C++. This hybrid role involves designing and delivering intricate software applications across various sectors, including defense and transport. The ideal candidate will have over 5 years of experience, proficiency ...

Backend Engineer, RiskOS — Real Time Identity Security

Socure in Greater London is seeking a highly skilled Software Engineer to join their dynamic engineering team. The role involves leading the design, development, and deployment of advanced software solutions, collaborating closely with cross-functional teams, and mentoring junior engineers. Candidates should hav ...

Senior Java Engineer, Trading Tech — Hybrid

Citi is looking for a highly motivated software engineer for the Trading application based in London. In this role, you will collaborate with global technologists to deliver innovative solutions in the Equities Technology team, requiring strong expertise in Java. The ideal candidate will have 6-10 year ...

Senior Java Backend Engineer — Microservices & Onboarding

A leading global bank is seeking a Vice President Software Engineer in Birmingham. This backend engineering position focuses on developing micro-services using Java and Spring, primarily for the Private Wealth Management onboarding platform. The role requires extensive experience in software development with a s ...

Senior Cloud Platform Engineer — Security & Scale

A security solutions startup in the United Kingdom is seeking a Software Engineer to develop cloud services focused on security. In this role, you'll design and maintain cloud infrastructure, contribute to software applications, and collaborate with the engineering team. Ideal candidates will have at least 6 yea ...

Senior Backend Engineer Payments & API

A financial technology company in Greater London is searching for an experienced Software Engineer to lead the design of their B2B API and payments infrastructure. Ideal candidates have at least 8 years of software engineering experience, a background in financial services, and are comfortable working with Node. ...

Senior DevOps Engineer: Kubernetes, Cloud & CI/CD Innovator

PTC Inc. is looking for a Devops Software Engineer in Cambridge, UK, to design and maintain scalable software solutions for their industry-leading platforms. The role emphasizes collaboration with cross-functional teams and innovation throughout the product lifecycle. Ideal candidates should have over ...

UK Security‑Cleared Platform Engineer – Cloud & IaC

A growing technology company in the UK is seeking a Platform Engineer to design, build, and operate platforms and infrastructure for secure software systems. The role emphasizes collaboration with software engineers and stakeholders, ensuring reliable delivery and scalability. Candidates should have experience i ...

Senior .NET & Angular Engineer Transit Tech Impact

A global technology leader in Manchester is seeking a Senior Software Engineer to develop transformative solutions in public transit. This role involves designing secure and scalable software, collaborating with various teams, and mentoring junior engineers. Candidates should have over 5 years of experience with ...

Principal AI Governance Platform Architect

J.P. MORGAN is looking for a Principal Software Engineer in Greater London to lead AI Governance Engineering efforts. The role involves designing and building governance platforms, developing reusable services, and ensuring compliance across AI/ML delivery lifecycles. Candidates should have strong software engin ...

Kernel Virtualization Engineer

APPLE in Greater London is looking for a motivated software engineer to contribute to the core development of virtualization technologies. The ideal candidate will have excellent skills in C and C++, experience with Armv8 or Armv9 architectures, and knowledge of OS internals. Responsibilities include maintaining ...

MLOps & Infrastructure Engineer | Kubernetes & Terraform

A cutting-edge AI technology company is looking for a skilled Software Infrastructure Engineer to join their dynamic team in Bristol. The role involves developing essential tools for enhancing the AI software development lifecycle, managing Cloud Infrastructure with Terraform and deploying services using Kuberne ...

Staff Backend Engineer Enterprise Device Mgmt (Hybrid)

HID in Cardiff is looking for a Staff Software Engineer to contribute to the development and maintenance of an enterprise-scale device management solution. The ideal candidate will have 7+ years of software development experience, a bachelor's degree in a quantitative field, and strong problem-solving skills. ...

Data Infrastructure Engineer — AI Data Acquisition

Speechify is seeking a Software Engineer specializing in Data Infrastructure and Acquisition in Glasgow, United Kingdom. The role involves enhancing data collection for model training by finding new audio data sources and managing cloud infrastructure. Ideal candidates should have a BS/MS/PhD in Computer Science ...

Senior Real Time Payments Fintech Engineer

Shoptalk is seeking a Senior Software Development Engineer to join their Basildon team. You will design, develop, and maintain software applications, working with cross-functional teams in a fast-paced financial services environment. Ideal candidates have strong backend skills in Java 11+, experience with cloud ...

Senior Flutter/Dart Mobile Engineer — Healthcare Impact

Spacelabs Healthcare is looking for a Senior Flutter/Dart Software Engineer to join our R&D Engineering team. In this hands-on role, you will design and develop mobile applications that enhance healthcare technology. The ideal candidate should have 8+ years of software development experience and 3+ yea ...

C++ Embedded Systems Engineer — Aerospace

METIS Aerospace Ltd is seeking a Software Engineer C++ to develop applications integrating with their hardware in Lincoln. The role involves designing and implementing features, testing software on live systems, and collaborating closely with engineering teams. Candidates should have a strong understanding of C+ ...

Platform Tech Lead – Fintech, Scale & AI

8120 Barclaycard UK is seeking a Principal Software Engineer to drive technical excellence through innovative software design and mentoring of engineering teams. This role involves leading cross-functional collaborations and contributing to strategic planning, ensuring alignment with business objectives and d ...

Senior Staff Backend Architect – Global, Equity Options

Metropolis is seeking a Senior Staff Software Engineer to join our AeroParker team in Stockport. This role encompasses driving the technical strategy for our pre-book mobility platform and managing complex distributed systems while ensuring their scalability and reliability. The ideal candidate has ext ...

Senior Backend Engineer Portfolio Data Workflows

Addepar, located in Edinburgh, is seeking a Staff Backend Software Engineer to enhance their Portfolio Data Workflows team. You will play a critical role in designing and implementing API services that support a growing European market. This position offers substantial technical leadership opportunities in a ...

Wireless Protocol & System API Engineer (3GPP/Pre 6G)

A leading technology company is seeking a Wireless Protocol Software Engineer to develop software capabilities and APIs for system configuration. This role requires strong 3GPP protocol expertise and involves validating protocol configurations for UE and base station emulation. You will collaborate with cross-fu ...

Senior Real Time Embedded Engineer — Automotive Test Systems

A leading automotive engineering firm in Bradford-on-Avon is seeking a Senior Real-time Embedded Software Engineer. This role involves designing and deploying software for advanced automotive test equipment, ensuring high quality and compliance with industry standards. Applicants should have a strong engineering ...

Aerospace Cloud Integration Engineer

GE Aerospace is seeking a Software Integration Engineer in Chandler's Ford, UK. The role involves integrating software with customer systems for cloud-based air traffic management services. You will work with a cross-functional team to ensure reliable and secure solutions. The ideal candidate will have ...

Senior Backend Engineer (Java & Spring) | Microservices

Elsevier in Oxford is seeking a Software Engineer III to design and develop backend services using Java, Spring Boot, and Python in a collaborative agile environment. This role involves enhancing document transformation services and APIs while working with cloud technologies like AWS and Kafka. The ideal candida ...

Principal AI Innovation Architect

Pearson is seeking a Principal Software Engineer for their innovative AI team in Greater London. In this founding role, you will lead the design and delivery of advanced AI solutions, collaborating with product leaders and partners to solve customer issues and foster strategic innovation initiatives. T ...

Embedded Linux Kernel Engineer: PCIe/ARM | Share Options

Logik Source is seeking an experienced Embedded Linux Kernel Engineer based in Central London, who will develop software to host and monitor high-speed networks. The successful candidate will focus on AI/ML technologies for datacentres and work in a hybrid environment. The role encompasses defining sof ...

Monitoring Platform Engineer Observability & Automation

SRT Marine Systems PLC in Birmingham seeks a Software Engineer (Monitoring Platform) responsible for designing and maintaining a productized monitoring platform deployed across global clients. Key duties include building CI/CD pipelines, managing Docker-based service orchestration, and developing dashboards u ...

Safety Critical DO 178C SDET Engineer (Hybrid)

DCS Recruitment seeks a Software Engineer / Test Specialist in Oxford for a hybrid position with 2 days onsite per week. This role focuses on safety critical systems, ensuring compliance with DO-178C standards while engaging in advanced AI-driven software verification. Key responsibilities include lead ...

Automated Test Systems Engineer (Python)

A technology company in Lisburn is seeking a Test System Software Engineer. In this role, you will develop and maintain production test systems, ensuring quality through automation. You will collaborate with production teams to resolve issues and continuously improve processes. The ideal candidate will have 3+ y ...

AI Tooling Engineer for Developer Platforms

A leading tech-driven financial firm in Greater London is seeking a software engineer to architect LLM-powered tools and collaborate with engineering teams. The ideal candidate has over 2 years of experience in software engineering, fluency in Python, and strong analytical skills. This position offers a dynamic ...

Senior QA Engineer for AI Powered Platform (Remote UK)

Dayshape, based in Edinburgh, is seeking a Senior Software Quality Engineer. This role involves ensuring quality in software releases, adapting quickly to new teams, and utilizing AI tools to improve testing processes. The ideal candidate should have experience in exploratory testing, risk management, ...

Senior Data Platform Engineer ML Pipelines & Databricks

twentysix, located in Washington, England, is looking for a skilled software engineer to be responsible for owning and maintaining their production machine learning and delivery platform. The role involves designing large-scale Databricks/Spark pipelines and leading technical improvements. Applicants s ...

Senior Real Time Embedded Engineer Growth & Hybrid

A leading aerospace and defense company is seeking a passionate Real-Time Embedded Software Engineer to design and deliver high-integrity embedded software solutions. With around 4 years of experience, you will collaborate with multi-disciplinary teams and enhance your skills in a supportive environment. The rol ...

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    Full Stack Software Engineer Javascript React Elixir Jobs in United Kingdom Job Search Guide, Trends and Insights