Senior Full Stack JavaScript Developer

  • 83Zero Ltd
  • Manchester, Lancashire
  • Sep 09, 2025
Full time Telecommunications

Job Description

Senior Full Stack JavaScript Developer

Salary: £70,000 - £8,000 pa (depending on experience) plus benefits, perks and healthcare options
Location: Hybrid/2 x days per week - Travel to Manchester
Job Type:
Permanent
Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC).

We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you're passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact!

Your Role

  • Provide technical leadership and mentorship to a team of developers, guiding them through collaboration, innovation and facilitation to ensure best practices and high-quality code.
  • Design, develop, and maintain both Front End components of web and mobile applications using React, Angular, TypeScript, Bootstrap 5, HTML, CSS
  • Apply Test Driven Development (TDD) practices using tools such as Karma to ensure robust and reliable code.
  • Leverage AI-augmented development tools like GitHub Copilot to accelerate coding, improve consistency, and reduce boilerplate.
  • Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems.
  • Continuously improve our teams' development processes, tools, and techniques to enhance productivity and product quality.
  • Work closely with clients and internal teams to understand requirements, provide technical guidance, and deliver solutions that exceed expectations.

Your skills and experienc:

  • Design, develop, and maintain both Front End and Back End components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js.
  • Proven experience in full stack JavaScript development, with a strong focus on Node.js and Server Side development.
  • Experience using AI-assisted development tools (eg GitHub Copilot) to enhance productivity and code quality.
  • Experience of at least one leading Node framework (Express.js, Nest.js, Hapi.js)
  • Expertise in at least one modern Front End framework (Nest.js, Remix.js).
  • A track record in a lead or senior developer role, with experience of mentoring and guiding development teams.
  • Proficiency in HTML5, CSS3, and JavaScript (ES6+).

Security Clearance Requirements:

  • You must be eligible for Security Check (SC) clearance.
  • Applicants must have resided continuously in the UK for the past 5 years.

If you're ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you!