end javascript developer jobs in Welwyn Garden City

You will be a crucial member of the engineering team, responsible for building and maintaining the core application logic, server-side APIs, and critical data integrations that power our application suite.

You will be responsible for Partnering with senior team members (WL5) to influence and develop strategic direction for functional learning for both the what and the how from a Group perspective.

You will need Setting group wide capability strategies and gaining engagement, consensus and sign off for these.

Mercury Systems, established in 1997, specialises in providing electronic security and fire systems with a reputation for excellent service and innovation. Designed to meet diverse customer needs, the company offers bespoke solutions, including intruder alarms, access control, CCTV, fire alarms and physical security. As an NSI Gold, ISO 9001, 14001, 27001 & 45001 Quality Approved Company, Mercury...

You will collaborate closely with developers, product managers, and other stakeholders to translate user insights and business requirements into functional, elegant interfaces that enhance usability and customer satisfaction. Key Responsibilities

You will benefit from ongoing training and support to gain further qualifications, with clear opportunities to develop your skills and progress your career within the business.

You will be a collaborative team player who thrives in a supportive, friendly environment, and you must hold a valid UK driving licence.

Our roles focus on putting our customers and communities at the heart of everything we do. You'll be given responsibilities early in the programme, spending time in-store to develop to become a Shift Leader. You'll even spend 2 weeks as a Shift Leader at the end of your programme. Salary: £27,103.44 pro rata Programme start date: 15 June 2026 Learn about our different parts of the business for...

Life on the team Flexible UK base location with regular UK-wide and occasional overseas travel Join Computacenters growing Consultancy Practice and work in a globally recognised IT services business operating across 70+ countries. Youll collaborate with experienced Enterprise Solution Architects, consultants, and technology experts, delivering complex, high-profile programmes in the defence...

TITLE Specification Sales Manager INTRODUCTION Our client is a leading manufacturer and truly prestige brand in both the UK and international KBB, bathrooms and showers sector. For more than half a century they have been a pioneer in product innovation and design. LOCATION North London, Home Counties, East Anglia, East Midlands (Remote, field-based role. Ideal home locations: Oxford, Watford,...

You will be trained in all aspects of: . NET 9, Web API 2, Entity Framework, Microservices, Azure, JavaScript, Angular 19, Bootstrap, Agile and MongoDB. Top performers can expect to receive their first promotion (and pay rise) within 6 months.

Video Content Specialist - E-LearningLocation: Welwyn Garden City (1 - 2 days pw required) Daily Rate: Up to £420 (inside IR35 via umbrella) Contract Length: 6 Months initiallyAre you a creative and driven Content Developer with a passion for information security? Our client is looking for a talented individual to join their team for a 6-month contract in Welwyn Garden City. If you thrive in a...

Accounts Payable SupervisorLocation: Welwyn Garden CityHybrid: 3 Days in OfficeSalary: Up to £35,000The OpportunityThe Advocate Group is partnered with a well-established, fast-growing international food business operating across the UK and global markets. The business is known for its iconic, culturally rich food brands, supplying major retailers, wholesalers and foodservice customers...

You will be responsible for: Collaborate with managers and cross-functional teams to translate customer strategies into actionable personalised communication plans across Email, Direct Mail, and Mobile, ensuring alignment with broader business goals and customer outcomes.

You will be responsible for Maintaining our clients' sites. Ensuring the sites external areas are kept clean & free from waste. Reporting site Hazards to your line manager e.g.: Graffiti/Fly Tipping etc. Ensuring you carry out duties and tasks to the highest standard of customer service.

You will be responsible for Understand key user personas, customers & stakeholders and their pain points Prioritise features and improvements that reduce friction and restore services faster Produce and drive a strategy and roadmap that provides valuable incremental wins to Tesco

You will be responsible for: Customer and Product: Use knowledge of customers, trends and competitors to make recommendations on the development of product and packaging. Demonstrate ability to develop and deliver consistently successful ranges for an agreed category with the support of my BM.

You will responsible for designing and implementing both manual and automated testing frameworks while partnering with our development teams drive best practices in software quality.

You will be responsible for •Work closely with product managers and developers to understand product requirements and design.

You will play a pivotal role in implementing both on-page and off-page SEO strategies and collaborate across content, web development, and marketing teams to drive results. Key Responsibilities 1. Strategy & Execution

You will be responsible for Whilst specific responsibilities will be dependent upon the changing needs of Tesco as a business, the following provides an overview of the role’s key responsibilities and measures: Coding, QA and configuration of analytics tracking code. Implement TMS (GTM) changes.

You will play a pivotal role in our journey to influence both the technical and cultural strategy across our channels. Supporting teams to gain the insight they need to make data driven decisions that directly impact our brand, our bottom line and overall colleagues and customer experience.

You will be responsible for

You will be responsible for Supporting the delivery of high quality, robust and impactful research projects with recommendations that can be actioned in a fast paced business environment.

You will need Strong analytical, data interpretation and visualisation skills are essential.