1,834,629+ Full Stack Software Engineer Javascript React Elixir Jobs in UK — Top Companies Hiring June 2026

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Senior Platform Engineer: SRE & Infra (Kubernetes)

OneSignal, Inc. is looking for a Senior or Staff Software Engineer to join their Platform Team in Greater London. The role focuses on managing and developing infrastructure, ensuring uptime and performance. The ideal candidate will have extensive experience in platform engineering and be knowledgeable in Kuberne ...

Senior Infrastructure Drainage Engineer — Lead Delivery

Carrington West is seeking a Senior or Principal Infrastructure Drainage Engineer in Manchester. In this role, you will lead and supervise drainage design projects, ensuring compliance with client specifications and industry standards. The ideal candidate will possess substantial experience in drainage managemen ...

Global Pre Sales Engineer – Strategic Enterprise Solutions

A global leader in tax solutions is seeking a Pre-Sales Engineer in Brighton, England. This senior role involves providing strategic technical advice on complex, multi-country sales engagements. The ideal candidate has 1-3 years in Sales Engineering or Technical Pre-Sales within enterprise software. Responsibili ...

AI Engineer LLMs & Multimodal Systems, Fast Paced

Wide and Wise is seeking an AI Engineer to join their team in London. The ideal candidate will have at least 2 years of engineering experience and a proven ability to build and ship production-level software. You'll design and deploy AI systems, using cutting-edge technologies to transform industries. ...

Senior Mechanical Engineer Lead Building Services Design

Hoare Lea is seeking a Principal or Associate Mechanical Engineer for their Birmingham office. In this role, you will take charge of leading design delivery for complex building services projects. You'll manage and prioritize the internal delivery team while maintaining client relationships and ensuring timel ...

Senior Java Backend Engineer — Pricing API & Cloud Systems

Salt Digital Recruitment is looking for a Senior Software Engineer to join their London office on a 6-month contract with a day rate of £400 - £500. The role requires strong experience with Java and cloud platforms, and focuses on designing scalable backend systems and maintaining cloud-native infrastructure. ...

Senior Network Engineer Global Infra Lead (Hybrid)

A leading international financial services firm is seeking a Senior Network Engineer to provide technical ownership of vital IT systems across EMEA and North America. The role demands strong project management skills and the ability to maintain network stability while implementing new solutions. With a focus on ...

Enterprise AI Engineer — Production AI for Enterprise Apps

iO Associates is seeking an AI Engineer specialized in Enterprise AI Products to join their team in Greater London. This hybrid role involves designing scalable AI features for enterprise software products used globally. You will collaborate with various engineering and architecture teams to ensure the produc ...

Senior Agentic AI Engineer Hybrid London

Understanding Recruitment is seeking a Senior AI Engineer to develop agentic AI systems. You will be responsible for building and deploying solutions from concept to production, collaborating with product teams, and ensuring successful integration into enterprise environments. The ideal candidate will ...

Principal Civil Structural Engineer Hybrid Working

Snc-Lavalin seeks a Principal Civil Structures Engineer for its Birmingham office. The successful candidate will manage technical design work on high-profile projects in the Energy and Defence sectors. Key responsibilities include coordinating a team of engineers, producing design documentation, and supporting p ...

Senior Flow Assurance Engineer Upstream Pipelines (6mo Contract)

A leading engineering consultancy is seeking a Flow Assurance Engineer based in Leatherhead on a 6-month contract. The ideal candidate will have over 10 years of experience in flow assurance modelling and will act on multiple upstream projects using software such as OLGA and PIPESIM. Responsibilities include dev ...

Senior Infra Engineer — Cloud‑Native Backend & CI/CD

A technology company in London seeks a Senior Software Engineer I for its Infrastructure Services team. The role involves designing and building core systems for backend services while ensuring scalability and reliability. Candidates should have strong programming skills in languages like Java, Go, or Python, an ...

Senior MEP Electrical Design Lead

Michael Taylor Search & Selection is hiring for a Freelance Senior Electrical Design Engineer in the United Kingdom. The role involves leading the electrical design of complex building services projects across various sectors such as commercial and healthcare. Responsibilities include technical ownership, mentor ...

AI Forward Deployed Squad Lead — Senior Manager

慨正橡扯 is looking for a Senior Manager for the Forward Deployed Engineer position, based in London with a hybrid working model involving client site travel. The role focuses on leading a squad to deliver AI-enabled solutions with strategic direction and strong engineering practices. The ideal candidate s ...

Staff Backend Engineer — Data Lakehouse & Data Integration

Blumberg Capital Company seeks a Staff Backend Software Engineer to join our Partner Platform team. This role focuses on building scalable data integration pipelines and contributing to critical engineering projects impacting clients and internal teams. Ideal candidates will have strong programming ski ...

Rust Distributed Systems Engineer – London (Hybrid)

Hunter Bond is seeking a Rust Distributed Systems Software Engineer in London. This elite company is known for its exceptional tech standards and talented individuals who are passionate about using cutting-edge technology. The role involves designing scalable, production-grade distributed systems and w ...

Lead Fire Engineer – High Impact UK Projects

Hoare Lea is seeking a Principal or Associate Fire Engineer in the UK, preferably in Bristol, Glasgow, Manchester, or London. This role involves delivering fire safety design, collaborating with multi-disciplinary teams, and applying UK fire regulations to create practical solutions. The ideal candidat ...

Senior HVDC NTI Engineer: Modelling, Control & Protection

AL7929 GE Grid GmbH is looking for a Senior Engineer to support the development of new technology concepts in HVDC products. This role involves collaboration with the NPI team and requires expertise in industrial power system analysis and validation. The ideal candidate will have a PhD in power systems ...

Senior Civil Engineer Drainage & Flood Risk Leader

Conrad Consulting Ltd is seeking a Senior Civil Engineer in Bristol, offering a salary of £50k-£60k DOE plus benefits. The ideal candidate will have over 10 years' experience in UK highways and drainage projects, with expertise in below-ground drainage and road design. Responsibilities include preparing technica ...

Senior Drainage Engineer & Flood Risk Lead

A multidisciplinary consultancy in London seeks a Senior Civil Engineer with over 6 years of experience in drainage design and flood risk assessments. The role involves leading a Civils Team and working on diverse projects including logistics and healthcare. Ideal candidates will have a strong grasp of drainage ...

Senior Test Automation Engineer — Remote & AWS CI/CD

CACI Ltd is seeking a Senior Test Automation Engineer based in Bromley, UK. This role involves ensuring the quality and reliability of software products through automated testing solutions. Responsibilities include designing automation strategies, collaborating with cross-functional teams, and mentoring junior e ...

Remote Roblox Engineer Live Sports Gameplay

Voldex is seeking a Software Engineer to join the NFL Universe Football team, focused on delivering engaging live content. This role offers the opportunity to build high-quality gameplay systems that impact millions of players. You will work in a fast-paced environment, collaborating with various teams ...

Generative AI Engineer Cloud, LLMs & Automation

A leading tech company in Greater London is seeking a Software Engineer to build and iterate on Generative AI solutions. The role involves partnering with product managers and non-technical users to develop high-impact AI use cases, design user-facing products, and build LLM-based applications on cloud platforms ...

Senior Java Engineer Remote, Flexible Hours, Growth

A leading digital consultancy in the UK seeks a talented software engineer to develop RESTful Java APIs and collaborate with cross-functional teams to deliver outstanding solutions. You will play a key role in the success of various client projects, mentoring your team and advocating for best engineering practic ...

Test Automation Engineer Real Time UI/API Focus (Hybrid)

Motorola Solutions in Uxbridge is seeking a skilled Test Automation Engineer to join their Avigilon Alta Video team. This role focuses on ensuring the quality of mission-critical software, contributing to public safety. The ideal candidate will have a strong background in automation, particularly with APIs, a ...

Lead Mechanical Engineer Equipment & Technology (Hybrid)

HR Wallingford seeks an experienced Principal Engineer for leading projects involving mechanical solutions. This role encompasses collaboration with electrical and software teams to deliver high-quality solutions. The candidate should possess a strong background in mechanical engineering and experience with l ...

Power System Studies Engineer — Remote Day, ETAP/EMT

Swan Recruitment Ltd. is seeking a Power System Studies Engineer for a 6 - 12 month assignment in Leatherhead. The role will involve supporting onshore projects related to power generation, including running various power system studies. The ideal candidate will have experience in equipment sizing, loa ...

Senior Python Backend Engineer Remote or Hybrid

Roc Search is seeking an experienced Software Engineer to join their Internal Tools team in London. This role is focused on building systems that support deployment and operation of their AI products, requiring Python expertise and experience in web applications. The position offers a hybrid or remote ...

Staff Android Engineer — Architect (Kotlin/Jetpack)

Marks & Spencer Plc is searching for a Staff Android Engineer to join their software engineering team. The role involves defining the Android platform's technical vision and mentoring engineers across multiple product teams. You will leverage your expertise in Kotlin and Jetpack Compose to enhance the ...

Nuclear Fire Safety Engineer | MAGIC Simulations & Design

1st Select is seeking a Fire Safety Engineer in the East Midlands. This role focuses on ensuring fire safety in engineering design within the nuclear sector by collaborating across disciplines and running essential fire safety simulations. Ideal candidates will have a degree in engineering and hands-on experi ...

Solutions Engineer, API & Integration (Pre Sales) – UK&I

Salesforce, Inc. is actively seeking a motivated Solution Engineer in Greater London. This role involves being a trusted advisor to clients, showcasing how MuleSoft's and Informatica's platforms can revolutionise IT. Preferred qualifications include experience in Pre-Sales within enterprise software, m ...

Electrical Design Engineer & Estimator — Costed Solutions

Rothwell Group Ltd, based in York, is seeking an experienced Electrical Design Engineer / Estimator to join its Projects team. This role combines technical design expertise with commercial awareness, requiring accurate project costings and electrical designs from initial enquiry through to delivery. Id ...

Lead Quality Engineer – AI Driven Cloud & QA Strategy

Cox Automotive Europe is seeking a Lead Quality Engineer to shape and lead quality engineering in its Manheim Vehicle Services platform. This high-impact role involves guiding teams through the evolution from a legacy .NET monolith to a cloud-native AWS architecture. The successful candidate will demonstrate ...

AI Engineer III — Agentic AI for Production & Growth

American Express is seeking an AI Engineer for their Burgess Hill location. This role focuses on developing AI systems leveraging real financial data to enhance customer interactions. Candidates will work collaboratively within cross-functional teams, gaining mentorship while contributing to practical AI solu ...

Senior Hardware Qualification Engineer

AEROCONTACT is looking for a Senior Development Engineer in Wolverhampton who will lead the generation of verification and qualification test evidence to ensure compliance with customer requirements. You will manage and execute development and qualification tests, working within a multi-disciplinary team. </p ...

Principal Engineer — AI SaaS Architecture & Leadership

Fin, located in Greater London, is seeking a Principal Engineer to lead key strategic initiatives within engineering. You will collaborate with cross-disciplinary teams, contribute to software development, and coach other engineers. Ideal candidates have 2+ years as a technical leader, a strong backgro ...

Senior AI Product Engineer Remote First, High Ownership

SR2 REC LTD is seeking a Senior Software Engineer (AI Products) in London to work on greenfield AI native product development. This remote-first role requires strong AWS experience and proficiency in modern programming technologies. You’ll be building AI-powered features and applications from scratch a ...

Electronics Engineer: Life Saving Detection

YT Technologies in Hereford is seeking an experienced Electronics Engineer to join a multidisciplinary R&D team focused on life-saving detection products. The ideal candidate will have at least 2 years of commercial experience and a strong degree in Electronics Engineering. In this role, you will work ...

Principal Electrical Engineer Lead Building Services

Hoare Lea in Leeds is seeking a Principal Electrical Engineer to lead the delivery of high-quality electrical engineering solutions. This role requires strong technical knowledge and experience in managing complex building services projects while ensuring technical and commercial excellence. The ideal ...

Contract BMS Engineer – London (Trend/Tridium)

VIGO Recruitment is actively seeking a knowledgeable BMS Engineer for a 6-12 month contract role based in London. The successful candidate will drive hardware and software installations and offer technical support, ensuring solutions meet specifications and are delivered on time. The ideal candidate wi ...

Senior Front End Engineer | Angular & TypeScript | London

Principle HR is seeking a Senior Front End Software Engineer to join a prominent technology organization in London. You will work on a well-established internal platform, responsible for owning features from day one. The role requires 5 years of experience, with an emphasis on Angular and TypeScript. T ...

Ultra Low Latency ASIC Engineer (FPGA/ASIC)

Jane Street is seeking an experienced ASIC Engineer in Greater London to design, test, and deploy advanced hardware designs. You'll collaborate with teams in trading, networking, and research infrastructure while contributing to both FPGA and ASIC technologies. Ideal candidates have over 4 years of exp ...

Technical Project Manager: Heavy Engineering & CAPEX

Nicholas Associates is seeking a Project Engineer based in Rotherham. You will take technical responsibility for project execution while managing design, ensuring projects align with timelines, and supporting sales through data analysis. The ideal candidate holds a mechanical engineering degree and has ...

Lead Data Platform Engineer — Hands on & Impactful

London Stock Exchange Group is seeking a Lead Software Engineer for their Data Platform team. This senior role requires hands-on engineering skills, including building scalable data systems using Python and Apache Spark, alongside providing technical leadership. The ideal candidate will have experience in dat ...

Go Backend Engineer – Agentic Systems & Simulations

Anduril Industries, Inc. is looking for a motivated Software Engineer for their Advanced Capabilities team in London. You will work on developing simulation capabilities and architecting systems that enhance the interaction between autonomous systems and humans in complex environments. The ideal candid ...

Music AI Engineer: Scalable ML & Gen AI

Universal Music Group is seeking an AI Engineer to design and build state-of-the-art AI/ML tools that empower Royalty Managers and Artists. You'll work with cross-functional teams to build robust machine learning solutions impacting various facets of the music industry. The ideal candidate has a strong ...

BMS Commissioning Engineer

Working on behalf of our client based in the West Midlands. We are currently recruiting for a Commissioning Engineer. Key Duties: Work on-site for commissioning projects (majority based in the West Midlands). Occasional projects outside of this area (travel expenses paid). ...

Automation Driven Quality Engineer (Shift Left)

Gear4music Ltd in Stoke-on-Trent is looking for a motivated engineer to develop scalable and resilient applications. The individual will contribute to effective software development and ensure safe, reliable releases while fostering a quality-focused environment within the technical team. The ideal can ...

Senior Civil Engineer Nuclear Structures & Design Lead

Engie is seeking a Senior/Principal Civil Engineer to lead the design efforts for Hinkley Point C and Sizewell C nuclear projects in the UK. The role requires providing civil engineering expertise and managing project delivery in collaboration with clients and contractors. The successful candidate will ...

Remote API Architect for Azure & Event Driven Microservices

SR2 REC LTD is looking for a Senior Software Engineer specializing in APIs & Integration for a 6-month contract, paying £500–£525 per day. This role focuses on transforming a large API estate and migrating services to Azure. You will influence the architectural direction, ensuring best practices in sca ...

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