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  • £51k - £66k per annumEstimated
     ...technology. Headquartered in Watford, with offices in the UK, US, Canada,...  ...looking for a Senior Frontend Developer to lead the development of...  ...comfortable working across the stack when needed and thrives in a fast...  ...tools and workflows, including Node.js, npm, and Webpack... 
    Javascript
    Java
    Full-time

    Mixam

    Leavesden, Hertfordshire
    19 days ago
  • £70k - £75k per annum

     ...require strong front-end experience with Angular, React, HTML5, CSS3,...  ...with ASP.NET MVC/.NET Core, Java EE/Spring Boot, or similar frameworks...  ...We require hands-on experience developing SOAP and REST web services and...  ...Java, C#, PHP, Ruby on Rails, Node.js, Python, and JavaScript.... 
    Javascript
    Java
    Full-time
    Hybrid working
    Remote
    Work from home

    Engage Education

    Watford, Hertfordshire
    1 day ago
  • £60k - £77k per annumEstimated
     ...the role We have an exciting opportunity for a Full-Stack JavaScript Engineer to join the elementsuite...  ...across the stack. This role blends front-end finesse with back-end capability, and we're especially keen to meet developers who can pair modern JavaScript frameworks with... 
    Javascript
    Full-time
    Flexible hours

    Zellis

    Watford, Hertfordshire
    2 days ago
  • £47k - £62k per annumEstimated
    Tesco UK •  Welwyn Garden City •  Full-Time •  Permanent •  Working hours 36•  Apply by 01-Sep-2026
    Javascript
    Permanent
    Full-time
    Welwyn Garden City, Hertfordshire
    3 days ago
  • £53k - £68k per annumEstimated
     ...industry leading engineers to define and develop Tesco's xAPI (Experience API) that powers...  ...You'll be a passionate, pragmatic Engineer with an inquisitive mind who is motivated to make...  ...using at scale: Javascript, Typescript, Node.JS, GraphQL, REST, Kafka, Azure Cloud, Redis,... 
    Javascript
    Full-time
    Part-time
    On-site
    Remote

    Tesco

    Welwyn Garden City, Hertfordshire
    13 days ago
  • £57k - £74k per annumEstimated
     ...(SDEs) are the creative minds developing the software applications that...  ...previously complex tasks simple with the impact ranging from saving...  ...solutions, with proficiency in Java (Spring Boot or other frameworks...  ...enhance efficiency. Technology stack we are using : ~ Experience... 
    Javascript
    Java
    Long-term contract
    Temporary
    On-site
    Remote
    Flexible hours

    Tesco

    Welwyn Garden City, Hertfordshire
    12 days ago
  • £59k - £79k per annumEstimated
     ...Full Stack Engineer (React, TypeScript, AWS) - Growing Company! Perm Role Only Hybrid...  ...This is a hands-on, greenfield role with full ownership from idea to production, working...  ...with stakeholders to deliver solutions Develop intuitive frontends and scalable backend... 
    Javascript
    Permanent
    Hybrid working
    On-site
    Remote

    Robert Half

    St Albans, Hertfordshire
    a month ago
  • £58k - £75k per annumEstimated
     ...have an exciting opportunity for a Java Engineer to join the elementsuite team, with a passion for clean code, elegant...  ...is a hands-on role where you'll be developing the elementsuite platform and its...  ...components that underpin our software stack. You'll be working with Java (... 
    Javascript
    Java
    Full-time
    Flexible hours

    Zellis

    Watford, Hertfordshire
    10 days ago
  • £35k - £55k per annum

     ...Requirements: ~ We are looking for a Front End JavaScript Developer who is proficient in React.js. You should have strong proficiency in JavaScript,...  ...manipulation and the JavaScript object model. Experience with TypeScript is essential, as well as a thorough understanding... 
    Javascript
    Full-time
    On-site

    Ascend Consulting

    Mill Hill, Greater London
    a month ago
  •  ...AI & Agentic Solutions Developer Contract type: Permanent Location...  ...to empower our business with smart technology; we've recently...  ...Ocado the only place to shop a full range of M&S food online, it’s...  ...Who you are Essential Full-Stack Pragmatist: Highly technical,... 
    Javascript
    Permanent
    Hybrid working
    On-site
    Flexible hours

    Ocado Retail

    Hatfield, Hertfordshire
    8 days ago
  •  ...AI & Agentic Frontend Solutions Developer Contract type: Permanent...  ...mission to empower our business with smart technology; we've recently...  ...Ocado the only place to shop a full range of M&S food online, it’s...  ...understandable visual interfaces (e.g., node visualizers, step-by-step agent... 
    Javascript
    Permanent
    Hybrid working
    On-site
    Flexible hours

    Ocado Retail

    Hatfield, Hertfordshire
    8 days ago
  • £80k - £100k per annum

     ...Requirements: We are looking for strong commercial experience with TypeScript and modern JavaScript development. We want...  ...software solutions used by thousands of customers. We mentor developers and help lead the delivery of high-quality software across a modern... 
    Javascript
    Full-time
    Hybrid working
    On-site
    Remote

    Spectrum IT Recruitment

    St Albans, Hertfordshire
    3 days ago
  • £43k - £55k per annumEstimated
     ...intervention tool, on the other hand.   Ours is a globally distributed, full stack java tech team and our building blocks consist of a set of...  ...support.  We're looking for a Backend Engineer (SDE2) with strong experience in building scalable, distributed Java systems... 
    Java
    Full-time
    Part-time
    On-site
    Remote

    Tesco

    Welwyn Garden City, Hertfordshire
    29 days ago
  • £38k - £49k per annumEstimated
     ...ecosystem. Working in close partnership with business and technology teams across Stores...  ...making and automation. The role spans the full product lifecycle, translating complex business...  ...web-based user interfaces using React.js, modern JavaScript / TypeScript, HTML and CSS... 
    Javascript
    Full-time
    Part-time
    Hybrid working
    On-site
    Remote
    3 days/week

    Tesco

    Welwyn Garden City, Hertfordshire
    a month ago
  • £48k - £61k per annumEstimated
    Tesco UK •  Welwyn Garden City •  Hybrid •  Full-Time •  Permanent •  Working hours 36•  Apply by 01-Oct-2026
    Java
    Permanent
    Full-time
    Hybrid working
    Welwyn Garden City, Hertfordshire
    12 days ago
  • £57k - £75k per annumEstimated
     ...intervention tool, on the other hand. Ours is a globally distributed, full stack java tech team and our building blocks consist of a set of...  ...system. As a key member of our engineering team, you will develop robust, scalable and efficient java-based applications to optimise... 
    Java
    Full-time
    Part-time
    On-site
    Remote

    Tesco

    Welwyn Garden City, Hertfordshire
    a month ago
  •  ...Role – What You’ll Do • Deliver KS4–KS5 Computer Science. • Teach Python/Java, algorithms, networks, and systems architecture. • Support robotics, coding clubs, and competitions. • Develop exam materials and digital resources. • Maintain excellent standards of behaviour... 
    Java

    Marchant Recruitment

    Watford, Hertfordshire
    more than 2 months ago
  • £60k per annum

     ...Senior Java Engineer (Java / Spring Boot) Fast-Growing Global Technology Consultancy...  ...traffic, event driven systems Full ownership of your services, end to end, not handing off to ops Modern stack, Java and Spring Boot on Azure with Terraform and microservices Real... 
    Java
    Hybrid working

    Searchability

    Welwyn Garden City, Hertfordshire
    7 days ago
  • £350 - £400 per day

    Company: THG RECRUITMENT Job Type: Permanent, Full Time Salary: £350 - £400/day
    Permanent
    Full-time

    THG RECRUITMENT

    Rickmansworth, Hertfordshire
    a month ago
  •  ...Science Specialist required from January 2026 Watford-based school with modern IT suites and forward-thinking teaching methods Perfect...  ...Strong grasp of programming languages such as Python or Java Ability to foster enthusiasm for technology and innovation School... 
    Java

    Marchant Recruitment

    Watford, Hertfordshire
    more than 2 months ago
  •  ...credit underwriting quantitative manager with second line oversight activities across all...  ...keeping stakeholders informed on all critical developments Build Quantitative models for effective...  ...and other tools/systems (R, Python, C++, Java) Key culture behaviours across Risk... 
    Java
    Rickmansworth, Hertfordshire
    25 days ago
  •  ...candidate will teach across KS3 to KS5 , inspiring students to engage with coding, algorithms, and real-world applications of computing....  ...teaching KS3–KS5. • Knowledge of key programming languages (Python, Java, etc.). • Strong organisational skills and passion for digital... 
    Java

    Marchant Recruitment

    Watford, Hertfordshire
    more than 2 months ago
  •  ...Hertfordshire , starting January 2026 . This is a full-time, permanent role in a school that...  ...clubs and digital projects. Collaborate with colleagues to advance digital literacy...  .... Strong programming knowledge (Python, Java, or C# preferred). Ability to make complex... 
    Java
    Permanent
    Full-time

    Marchant Recruitment

    St Albans, Hertfordshire
    more than 2 months ago
  • £90k per annum

    Company: HAYS DT - SOUTH COAST Job Type: Permanent Salary: £90000.00 - £90000.00
    Permanent

    HAYS DT - SOUTH COAST

    Watford, Hertfordshire
    a month ago
  • £45k - £70k per annum

     ...years of experience delivering backend services in Java in production environments Strong hands-on experience with Spring Boot and modern Java development practices...  ...experience Responsibilities: Designing and developing high-quality Java backend services, primarily... 
    Java
    Full-time
    Hybrid working

    Uniting Ambition

    Welwyn Garden City, Hertfordshire
    1 day ago
  •  ...& Location Sector: Leading Independent School (with Sixth Form). Borough: Barnet Start Date: Permanent, full-time role commencing January or April 2026. The...  ...students to code fluently in languages such as Python, Java, or C++ and exploring cybersecurity and AI... 
    Java
    Permanent
    Full-time

    Marchant Recruitment

    Barnet, Greater London
    more than 2 months ago