1,348,291+ Full Stack Javascript Developer Jobs in UK — Top Companies Hiring July 2026

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Software Development Engineer, Ring Cloud CV in Cambridge Amazon

Software Development Engineer, Ring Cloud CV Cambridge, United Kingdom Posted 10 months ago Tech stack C Science Java Cloud Experience In professional, non‑internship software development experience programmin ...

Platform Software Engineer Platform Remote, UK

Ground Truth Labs GTL is a well‑funded, early‑stage startup developing state‑of‑the‑art digital technologies to better understand, diagnose and treat blood cancer patients. We have built an exceptional, small‑by‑design, interdisciplinary team to translate leading academic research into re ...

Growth Marketing Engineer II React (Web) | UK + EU (remote) Germany / remote

Growth Marketing Engineer II - React (Web) | UK + EU (remote) Office: United Kingdom Remote: Germany | Portugal | Spain | UK Apply for this role About the company About Cleo At Cleo, we're not just building another fintech app. We're embarking on a mission to fundamentally ch ...

Senior Frontend Engineer, Product

Location London Office Employment Type Full time Location Type On-site Department Engineering Compensation £180K - £220K About Plasma Plasma is building money that just works. Plasma On ...

Senior Frontend Payments Engineer

Location London Office Employment Type Full time Location Type On-site Department Engineering Compensation £180K – £220K About Plasma Plasma is building money that just works. Plasma One is o ...

Senior Software Engineer (JVM, Kotlin)

Senior Software Engineer (JVM, Kotlin)Simple MachinesHybrid · Full-time · London, UKAbout Simple MachinesSimple Machines is a leading independent boutique technology firm with a global footprint across London, Poland, Sydney and New Zealand. We operate at t ...

Senior Site Manager

Overview Senior Site Manager - Residential Developer — Location: Coventry. Project: 140-Unit New Build Housing Development. Salary: Up to £75,000 + 20% Bonus + Car Allowance + Benefits. Knightwood Associates are recruiting on behalf of a well-established residential developer with a ...

AWS API Engineer / Data Architect

Who You Will Be Working With You will be part of the Data Platforms team within the Insights and Data Global Practice, which has seen strong growth and continued success across a variety of projects and sectors. Data Platforms is home to API Engineers, Data Engineers, Platform Engineers, Solution ...

Staff Software Engineer at Flawless

Job Title Staff Software Engineer Salary Not Disclosed Company Description Flawless is a London-based AI startup transforming Hollywood through advanced cinematic tools like TrueSync and DeepEditor, which enable seamless lip‑sync localization and performance ed ...

Principal Engineer

Principal Engineer | EdTech | Python, Typescript, React & FastAPI Location : Remote (UK) - Need to go to Bristol 1-2 times a month Package : Up to £100,000 + Benefits TECH: Python | FastAPI | React | TypeScript | AWS | AI Integrations About the Compa ...

Founding Engineer (£60k £100k + Equity) at CompliMind

Job Title Founding Engineer Salary £60k-£100k + Equity Company Description CompliMind is a healthcare AI startup founded by Cambridge PhDs building intelligent systems to automate operational decision-making and compliance for hospital estates across the NHS. < ...

Software Engineer

I'm working with a key client on a high-impact contract role within a fast-paced engineering team building scalable, cloud-native applications.This isn't just another full stack role - they're looking for a hands-on engineer who can build, deploy, and own production systems end-to-end.📍 The basic ...

Boatyard Operative

Boatyard Operative – South Coast Marina & Boatyard We are currently working with a well-established marina and boatyard operation on the South Coast to recruit a Boatyard Operative to support both boatyard and dry stack activities. This is a fantastic opportunity for someone who enjoys hands-on outdo ...

Senior Backend Engineer — Scalable AI Security Platform

A cutting-edge cybersecurity firm in London is seeking a Senior Software Engineer to lead complex projects focused on developing scalable backend systems and ML tools. The ideal candidate will possess at least 7 years of experience, particularly in Python and cloud services like AWS. Responsibilities include man ...

Strategic API & Integrations Product Manager

A leading UK tech firm is seeking a Technical Product Manager to drive integration strategy and product roadmap for their HR Tech platform. This role merges product management with business analysis, focusing on translating partner needs into actionable specifications for engineering teams. The ideal candidate w ...

One Identity IAM Specialist (Hybrid, UK)

A leading British media company is looking for a One Identity Developer (hybrid work) to shape their Identity and Access Management roadmap. The ideal candidate will have extensive hands-on experience with One Identity Manager and IAM protocols. Responsibilities include designing IAM solutions, collaborating on ...

Platform AI Engineer: Scale LLM/ML Infrastructure

Jobgether is looking for an Applied AI Engineer based in the United Kingdom. This high-impact role focuses on building foundational AI and machine learning systems across the organization. You'll work in a collaborative environment to create shared capabilities used by multiple teams, emphasizing reliability, ...

Security Engineer

Security Engineer Security Engineer with strong expertise across the Microsoft security stack, including proven experience implementing Purview, who enjoys working in lean, evolving cyber security functions and can drive meaningful improvements in security capability and maturity. Day R ...

Security Engineer

Security Engineer Security Engineer with strong expertise across the Microsoft security stack, including proven experience implementing Purview, who enjoys working in lean, evolving cyber security functions and can drive meaningful improvements in security capability and maturity. Day R ...

IoT Engineer

Job Description **Who will you be working with?** We are seeking an experienced IoT Engineer to join our team at Wabtec UK where we support our customers through maintenance and operation optimisation with customised solutions for spare parts, repair, and overhaul activities on existing trains. ...

Project Engineer

We're recruiting on behalf of a cloud-first, technically led Managed Service Provider whose philosophy is to stay top‑heavy with technical capability; they only sell what they can design and deliver themselves. For you, that translates into fewer layers of non‑technical management and far more day‑to‑day ...

Portfolio Lead at Multiverse

Job Title Portfolio Lead Salary Not Disclosed Company Description Multiverse.io is a Series D-funded edtech leader backed by Bessemer Venture Partners, reinventing professional development by replacing traditional degrees with high-impact apprenticeships in dat ...

Frontend Engineer (React) for AI Energy Platform — Remote/UK

Hypercube Consulting, a rapidly growing data and AI startup in Scotland, is seeking a software developer to enhance their innovative platform, Cairn. In this role, you will engage in full software development lifecycle from requirements gathering to deployment, collaborating closely with a diverse team. < ...

Senior Front End Dev (Vue.js) Build Great UIs

Java Script Works is looking for a Senior or Middleweight Front-End Developer focused on Vue.js in Barnstaple, North Devon. Ideal candidates will have several years of experience in front-end development and a strong passion for creating excellent user experiences. This full-time position offers competitive comp ...

Remote CR&S Course Designer & Skills Coach

KnowledgeBrief is looking for a Course Developer & Skills Coach for their Corporate Responsibility & Sustainability Practitioner programme. The role involves curriculum design for apprenticeships, facilitating online workshops, and providing personalised coaching to learners. Salary ranges from £33,000 to £37 ...

Senior Data & Analytics Leader

INEOS Belgium in Runcorn is looking for a Senior Data & Analytics Developer to provide technical leadership in shaping the data strategy and delivering analytics solutions. The ideal candidate will possess strong skills in data warehousing, SQL, and cloud data platforms like Snowflake and Qlik Sense. This full-t ...

Senior Python Backend Engineer — APIs & Architecture

A leading global technology firm is seeking a skilled Python Developer based in Glasgow. The role involves designing, developing, and maintaining Python interfaces and backend services, ensuring code quality and performance optimization. The successful candidate will collaborate with analysts to translate specif ...

Automation Engineer in Test – Connected TV (London)

A leading digital automation firm is seeking a Mid-level Software Developer in Test to join their Quality Engineering team in London. This full-time role involves significant responsibility for building and maintaining automation frameworks. The successful candidate will collaborate closely with senior engineers ...

Senior D365 CE & Power Platform Architect

A leading environmental services company in Brentford seeks a D365 CE Developer to design and deliver enhancements in Dynamics 365 CE and the Power Platform. Key responsibilities include developing solutions across Dynamics and leading integrations with Azure services. The ideal candidate will have strong SQL Se ...

SAS Modeling Engineer Predictive & Pricing Analytics

TXP is seeking an experienced SAS Model Developer to support model development within a large-scale data environment. This role involves designing and enhancing statistical models, with a focus on SAS programming and the full model lifecycle. Key responsibilities include building datasets, conducting m ...

Senior Architect AI/ML, Cloud & Media (Remote)

Merapar in the UK is looking for a Software Architect/Developer to join their dynamic team. In this full-time role, you'll work closely with clients to deliver cutting-edge software solutions while coaching team members and guiding complex integrations. You will need substantial experience in software architectu ...

Corporate Partnerships Lead: Drive Community Impact

Wigan Youth Zone is seeking a Corporate Partnerships Manager to build meaningful relationships with businesses that want to make a difference in their community. This full-time role aims to secure significant partnerships, generating over £75,000 per year, with ambitions to grow to £100,000. The ideal ...

Frontend Engineer (React) for AI Energy Platform — Remote/UK

Hypercube Consulting, a rapidly growing data and AI startup in Scotland, is seeking a software developer to enhance their innovative platform, Cairn. In this role, you will engage in full software development lifecycle from requirements gathering to deployment, collaborating closely with a diverse team. < ...

Senior Offshore HVDC Protection Engineer

Taylor Hopkinson is looking for a Protection Engineer to join a leading Offshore Wind Farm Developer in the United Kingdom. You will be responsible for commissioning, testing, and troubleshooting protection and control systems for high-voltage installations. The ideal candidate has extensive experience ...

Senior Software Dev, C/Python, Embedded Linux Hybrid

hackajob in Cambridge is seeking a Senior Software Developer specializing in C and Python for embedded systems. You will work on Linux system tools and tackle complex technical challenges involving Hardware Security Modules (HSMs). The role involves full system design, coding, and feature development. ...

Senior Magento Backend Engineer — Hybrid Remote Role

Envisage Digital, based in the UK, is seeking a skilled Backend Developer to join their team. This full-time hybrid role emphasizes eCommerce development with a strong focus on Magento and various web technologies. The ideal candidate will have at least 5 years of industry experience, expertise in PHP ...

Senior Software Engineer Azure SaaS, Security & DevOps

TellJO is seeking a Senior Software Developer for a full-time role based in Lancing. The ideal candidate will design and maintain applications using C#, .NET, and React while ensuring secure development practices. This position involves managing Azure-hosted services and deployment pipelines. Candidate ...

Remote Workato Integrations Pro — 12 Month Contract

A consultancy firm is seeking a Remote Workato Developer for an immediate start on a 12-month contract. This role involves designing and optimizing integrations using Workato while collaborating with cross-functional stakeholders. The ideal candidate will possess proven hands-on experience with Workato and stron ...

AI Engineer – 3D Reconstruction & Neural Rendering

GAK ENTERPRISES LTD in Milton Keynes is seeking a Software Developer (AI Engineer - Neural Rendering & 3D Reconstruction) to join their team. The role involves developing and deploying REST APIs using Java Spring Boot and utilizing AI technologies. The ideal candidate will have experience in applied AI ...

Technical Writer — Documentation (Hybrid)

Unity Technologies is seeking a Technical Writer in Brighton, United Kingdom to maintain and enhance technical content for multiple products. You will work closely with engineering teams to ensure clarity and consistency across all user and developer guides. The ideal candidate will possess strong tech ...

Embedded Software Engineer Medical Devices (Real Time C/C++)

Arjo in Cardiff is looking for a skilled software developer to apply design expertise in developing new products and managing improvements to existing ones. This role involves the full project lifecycle, from design to manufacturing, in a highly regulated medical device sector. Ideal candidates will ha ...

Principal Platform Engineer

Lead Platform Engineer / Principal Platform EngineerSalary: £90,000 - £110,000 + benefits Location: UK Wide Hybrid Working Offices: Bristol, Woking, Worthing, St Paul's London Security Clearance: SC cleared or SC eligible requiredUp to 6 days per month in office.We are support ...

Senior Java Quant Trading Engineer: Low Latency, High Impact

A leading Quant Trading firm in London is seeking a Senior Java Developer to design and build low-latency trading systems. You will work with traders and quants to optimize performance and tackle complex engineering challenges in a fast-paced environment. The ideal candidate has expert-level Java skills, proven ...

Graduate Frontend Developer in London Graduate Recruitment Bureau

Job Requirements You will be a recent graduate or someone with 1-3 years of post‑grad work experience with a love for all things frontend. Ideally, you’ll have some experience with one or more of the technologies below: Typescript Javascript Vue 2 or 3 ...

Head of Engineering

One of London's most interesting FinTech companies is looking for a Head of Engineering to join their well-established team who are tackling a really interesting niche.As the Head of Engineering, you will be taking the reins of a functioning team which is split between the UK and India. Some key points ...

Principal Engineer Digital Experience Platform

Principal Engineer — Digital Experience PlatformUK FinTech · Yorkshire (Hybrid, 3 days on-site) · Permanent A you looking for a senior role where you can be responsible for setting the engineering north star for digital experiences seen by millions of people every ...

Principal Engineer Digital Experience Platform

Principal Engineer — Digital Experience PlatformUK FinTech · Yorkshire (Hybrid, 3 days on-site) · Permanent A you looking for a senior role where you can be responsible for setting the engineering north star for digital experiences seen by millions of people every ...

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    Full Stack Javascript Developer Jobs in United Kingdom Job Search Guide, Trends and Insights