2,202,960+ Full Stack Software Engineer Javascript React Elixir Jobs in UK — Top Companies Hiring June 2026

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Mechanical Design Engineer – Building Services & BIM

A leading engineering consultancy in Reading is seeking a Mechanical Design Engineer to join its experienced team. The role involves diverse project work within various sectors and requires significant experience in mechanical design. Candidates should hold an accredited Building Services degree and ideally be w ...

Lead Power Electronics Engineer — Systems & Topology Leader

A leading defense technology firm in Edinburgh is seeking a Lead Power Engineer to join their Power Supply Unit (PSU) team. The candidate will provide technical and managerial support across various projects and ensure design integrity in power system development. Responsibilities include conducting tests, revie ...

Senior Rust Engineer — FinTech Lending Platform (Remote/Hybrid)

Cryptio is looking for a Senior Software Engineer to lead the development of their new Digital Assets Lending Marketplace in London. The role involves designing and building a complex financial product that ensures correctness and reliability. Candidates should have over 7 years of experience in backend engineer ...

Azure DevOps Engineer Java, Terraform & CI/CD on Azure

A leading recruitment agency is seeking a Software Engineer for an on-site role in Glasgow. The ideal candidate will have strong experience in Java development, DevOps, and cloud-native development, with a focus on building and maintaining cloud-based services on Microsoft Azure. Familiarity with CI/CD pipelines ...

Senior Internal Tools Engineer Drive Growth & Impact

A fintech company based in London is seeking a Senior Software Engineer to join its growing engineering team. You will define, build, and iterate on features for internal tooling while collaborating with cross-functional teams. The ideal candidate has over 5 years of experience with API development using Python ...

CTO Track AI Engineer Remote, Firebase & LLMs

Corriculo Ltd is seeking an AI Software Engineer to join their early-stage start-up based in Woking, UK. This hands-on lead role offers an exceptional opportunity to build a platform powered by agentic AI, leading to a potential CTO position as the company scales. The successful candidate will have dee ...

GenAI Engineer for Microsoft Ecosystem – Production AI

3004 Avanade UK Limited Company is seeking an innovative Agentic AI Engineer to drive the development and deployment of generative AI solutions within the Microsoft ecosystem. This role involves developing production-grade AI applications, maintaining APIs, and integrating advanced models. The ideal ca ...

Senior Backend Engineer for Scalable, Secure AI Voice

Hard Yaka is looking for an experienced Senior Backend Software Engineer to join their team in the United Kingdom. You will be responsible for designing, developing, and operating critical features that enhance customer value and ensuring the delivery of secure and scalable voice solutions. The ideal c ...

Client‑Facing Enterprise AI Deployment Engineer

A technology company focusing on AI infrastructure is seeking a Forward Deployed Engineer to manage the deployment lifecycle and work directly with enterprise clients in the UK. Responsibilities include designing AI applications, integrating systems, and collaborating with various stakeholders. The ideal candida ...

Senior Platform Engineer: Core Platform & Deployments

Fanatics-Betting- is seeking a Level 3 Platform Engineer to join their Platform Engineering team. This role focuses on infrastructure and deployment capabilities that support the engineering teams. You will work on cloud infrastructure, release pipelines, and deployment systems. Required qualifications include 3 ...

Senior Java Engineer — Hybrid London, Architecture Ownership

A leading fintech organization based in London is seeking a Senior Java Software Engineer to join their Treasury Engineering function. This hybrid role entails building systems to manage capital optimization while providing significant architectural ownership. Candidates should possess strong backend engineering ...

Senior Python & Quant Infrastructure Lead

Quanteam UK is seeking an experienced Python Tech Lead / Quant Infrastructure Engineer to support the development of a modern analytics and engineering platform. This role involves building scalable infrastructure and improving development tooling within Credit and Capital Management. Candidates should have over ...

AI Agent Engineer — Build Scalable Conversational Tech

Decagon, based in Greater London, seeks an experienced software engineer to join the Agent Engineering team. This role focuses on designing and building AI agents to enhance customer interactions across various industries. Ideal candidates should have over 3 years of experience, expertise in Python and Typescrip ...

Data Platform Engineer: Scale ETL & Data Ops

A global leader in electronic trading is seeking a Data Platform Engineer based in Greater London. This role involves building and managing data processes on Tradeweb's platform, optimizing code and enhancing data pipelines. Candidates should have over 3 years of experience in Data Platform Engineering, strong s ...

Kotlin Backend Engineer — Payments & Distributed Systems

Katanox is seeking a Software Engineer to enhance backend systems that manage transactions in the hospitality sector. Your role will center on developing secure, high-availability services handling real payments and bookings. Ideal candidates will have strong Kotlin or Java backgrounds, delivery ownership, and a ...

Research Engineer Scalable Quant Finance Platform

Barlowe LLP in London is seeking an engineer to deliver high-quality software for quantitative finance. The ideal candidate will have strong architectural awareness and be interested in the intersection of technology and finance. A competitive compensation package and diverse workplace culture are key attract ...

Mechatronics Robotics Engineer: Real World Prototyping

A dynamic robotics firm in London is seeking a Mechatronics Robotics Engineer. In this hands-on role, you will lead mechanical design and integration of robot components, test control systems, and collaborate closely with software engineers. The ideal candidate has a degree in mechanical engineering, at least 3 ...

Hybrid Automation Test Engineer: API & Data Validation

A leading software company in London is seeking an Automation Test Engineer to join their team. This hybrid role will involve working onsite 2-3 days per week. The ideal candidate will have a strong background in integration and API testing, solid database knowledge, and the ability to communicate effectively wi ...

Applied AI Engineer II Production ML & Generative AI

A global financial institution is seeking a Software Engineer II - Applied AI to drive AI innovation and optimize business processes through advanced machine learning. You will lead the development of AI-powered products, collaborate extensively, and ensure the scalability of AI solutions. Ideal candidates will ...

Senior DevOps Engineer Cloud Native & CI/CD

A leading IT consultancy firm in Greater London is seeking an experienced DevOps Engineer to drive software quality and process improvements. The role requires collaboration with multi-disciplinary teams to implement best practices in DevOps. The ideal candidate will have over 5 years of experience, strong knowl ...

Senior DevOps Lead — Azure, Kubernetes & CI/CD Expert

Cpl Life Sciences in Colchester is seeking a Lead DevOps Engineer to take ownership of their DevOps capability. The role involves enhancing engineering velocity, scalability, and security in cloud infrastructure and software delivery. Responsibilities include leading DevOps strategy, optimizing cloud environment ...

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 Fullstack Engineer — AI‑Driven Internal Tools (Remote)

PC Games Insider is seeking a Senior Software Engineer in Greater London to build and enhance their internal back office platform. The ideal candidate brings over 5 years of engineering experience, strong skills in Python and frontend technologies like Vue, and a passion for AI and automation. This role requires ...

Lead AI & Markets Tech Engineer (Credit Pre Trade)

JPMorgan Chase & Co. is looking for a Lead Software Engineer to work within Credit Technology. This role involves building AI-native systems and enhancing trading capabilities through various technical solutions. Candidates should have over 5 years of hands-on experience with programming languages like Python, J ...

Senior Security Researcher: Exploit & Strategic Research

NCC Group is seeking a Lead Security Researcher to join their Exploit Development Group in the City of Westminster. This role involves conducting high-impact vulnerability research and exploit development, contributing to NCC Group’s reputation as a leading authority in cybersecurity. The ideal candidate will ha ...

Senior Platform Engineer — Greenfield Data Platform Hybrid

Baringa is looking for a Senior Platform Software Engineer to join the Data and Processing Platform team in Greater London. This role involves shaping the design and ongoing support of a greenfield Data and Processing Platform, engaging closely with teams to enhance capabilities. The ideal candidate sh ...

Product Security Engineer for AI‑Driven Secure Platforms

Creandum Advisor LLP is looking for a Security Engineer to join its team in London, United Kingdom. The ideal candidate will have over 3 years of experience in security engineering, partnering with teams to integrate security into the software development lifecycle, and expertise in security concepts such as ...

Edge Platform Engineer (C/C++/Go) – Hybrid, Benefits

IOTech Systems based in Newcastle upon Tyne is looking for a mid-level or senior software engineer to join their experienced team. You will tackle complex distributed systems problems, designing and building solutions while writing clean, production-quality code in C, C++, or Go. The role comes with a ...

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 ...

Senior Compiler Engineer — Quantum Control Systems

Riverlane Ltd in Cambridge is seeking a Compiler Engineer to bridge the gap between the company's quantum control systems and customer requirements. This role offers a hybrid working model and places emphasis on troubleshooting, customer interaction, and software development. The ideal candidate will h ...

Android Performance Engineer II — Scale & Telemetry

Google Inc. is seeking a Software Engineer II focused on Android Performance Console in London, UK. This role involves writing code for product or system development and focuses on improving Android's efficiency to assist lower-income communities with access to computing, internet, and education. The i ...

Remote Rails Engineer II — Product Platform Growth

Stora is seeking a Software Engineer to enhance and expand its Rails-based platform. This role offers the flexibility of fully remote work within the UK or EU, and involves collaborating closely with a passionate team. Ideal candidates will have a strong background in Rails applications and a passion f ...

Senior Platform Driven AI Engineer for Client Solutions

Enablis in Leeds is seeking an AI Engineer to drive their AI capabilities by building production-grade solutions for clients and internal use. You'll work closely with the CTO and engineering leadership to enhance their internal AI platform, developing advanced AI tools and solutions. The ideal candida ...

Product Engineer: End to End HealthTech Impact

Stott and May is seeking a Mid-Senior Product Engineer in Greater London. This role offers the chance to shape product decisions and influence technical direction in a fast-growing, product-led HealthTech start-up. You will collaborate closely with customers, product managers, and designers, ensuring t ...

Hybrid Senior Modelling Engineer — Run Training Algorithms

A leading fitness technology firm based in Greater London is seeking a Software Engineer with expertise in Python to join their Train Team. You will be responsible for building and delivering innovative training features, leveraging data-driven approaches, and coaching fellow engineers. The role offers a competi ...

Senior Real Time Streaming Platform Engineer

ON.com is looking for a skilled Streaming Platform Engineer to join our Data Streaming Platform team in Greater London. This hybrid role combines platform, software, and data engineering responsibilities, focusing on building and maintaining a high-performance real-time data streaming platform. The suc ...

Forward Deployed Engineer — Production ML & Customer Impact

Callosum is seeking a Forward Deployed Engineer to directly engage with customers, managing projects from workload scoping to production deployment. You will leverage your software engineering background to evaluate and optimise workflows and systems in collaboration with client engineering teams. As p ...

Founding Data Platforms Engineer Energy Data & Backend

Aurora Energy Research Limited is seeking a Data Platforms Software Engineer in Oxford. You will develop high‑uptime platforms for massive data volumes and work closely with engineers and analysts to shape the data infrastructure. The ideal candidate has over 3 years of backend development experience, ...

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 ...

Dubai Relocation AI Solutions Engineer

oryxsearch.io is seeking a Forward Deployed Engineer for a high-impact role that directly influences client operations through custom AI-powered software solutions. Based in the United Kingdom, the position involves close collaboration with customers to tackle complex problems, designing applications, and taking ...

Lead Python Engineer, Front Office Credit Technology

J.P. MORGAN in Glasgow seeks a Lead Software Engineer to develop scalable front‑office solutions for trading and P&L management. You will work on high-quality production code, troubleshoot complex issues, and lead technological practices in an agile environment. Ideal candidates will possess hands-on e ...

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 ...

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 ...

Senior Product Security Engineer Cloud Native Security

9fin Limited is seeking a Senior Product Security Engineer to join our software engineering teams and enhance the security of our products as we scale. In this hands-on role, you will ensure that security considerations are embedded in product design, collaborating closely with product and platform engineerin ...

DevOps Engineer: Core Banking Platform & Cloud

Infinity Quest is seeking a skilled DevOps Engineer in Manchester, UK, to drive the design and support of tools that enhance software delivery. The role requires expertise in CI/CD pipelines and various DevOps tools, as well as hands-on cloud platform experience. Key responsibilities include implementi ...

Pre Sales Systems Engineer IT & Cloud Solutions

Veeam Software in Greater London is seeking a Sales Systems Engineer to work closely with field sales teams. This role involves engaging with end users and Veeam partners, managing technical evaluations, and supporting lead generation activities across the UK and Ireland. The ideal candidate should hav ...

Staff Platform Engineer — Content & API Platform

Marks & Spencer Plc is seeking a Staff Software Engineer to enhance M&S’s Content Domain platform. You will design and build backend capabilities, focusing on APIs, services, and automation pipelines while working with a range of teams to deliver optimal digital experiences. The role requires strong pr ...

Senior Electrical Design Engineer — Hybrid, Career Growth

Carrington West is seeking a Senior Electrical Design Engineer in Newcastle with hybrid working. You will lead electrical designs for innovative building services projects, working across various sectors including Commercial, Education, and Healthcare. The successful candidate should have strong experi ...

Electronics Engineer Embedded Design & RTOS, PCB

Matthew James Group Ltd is seeking an Electronics Engineer to join their team in Aylesford. This permanent position involves electronic design, PCB layout, and firmware development, among other responsibilities. Ideal candidates will have a degree in Electronics or Software, along with experience in PCB desig ...

Electrical Design Engineer LV Switchgear & Panels

CDM Recruitment is seeking an Electrical Engineer for its design and projects team in North East England. The ideal candidate will customize electrical designs for low voltage switchgear and work cross-functionally to ensure projects are delivered from concept to commissioning. Qualifications include a ...

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