Senior Frontend Developer

Permanent
Technology
Experienced
JavaScript, React
Manchester, Greater Manchester
Greater Manchester
£40000 - £55000 per annum

Senior Frontend Developer - UK Highest Government Clearance Required
Location: Manchester/Cheltenham (Hybrid/Remote Options)
Salary: Competitive/Flexible + Benefits
Relocation Assistance: May be available
UK Citizenship Required
Security Clearance: Must be able to gain and maintain the highest level of UK Government clearance

Opportunity Overview

We are seeking a Senior Frontend Developer to join a skilled team working on innovative and complex technology solutions within the defence and security sectors.

In this role, you will be responsible for designing, developing and maintaining critical frontend applications that support key services. You will work on a variety of challenging projects and contribute to delivering solutions with real-world impact in a hybrid and flexible working environment.

Key Responsibilities

  • Design and develop robust, scalable frontend applications using modern technologies and best practices
  • Participate in the full software development lifecycle, from requirements gathering through to deployment and testing
  • Collaborate effectively with cross-functional teams including product owners, backend developers and QA
  • Mentor and support junior developers to help grow the team's capability and technical expertise

Essential Skills and Experience

  • Experience as a Software Developer with a strong focus on frontend JavaScript development, preferably within the React ecosystem
  • Strong knowledge of HTML and CSS and proven ability to develop modular frontend experiences
  • Experience collaborating with non-technical partners such as User Experience teams, and presenting work to stakeholders
  • Familiarity with CI/CD, containerisation, deployment technologies and cloud platforms such as Jenkins, Kubernetes, Docker and AWS
  • Excellent communication, collaboration and problem-solving skills
  • Experience working in Agile environments is advantageous
  • Ability to obtain and maintain the highest level of UK Government security clearance
  • UK citizenship is essential due to security clearance requirements

What's on Offer

  • Flexible working arrangements including hybrid and remote options
  • Optional compressed working schedule (e.g. every other Friday off)
  • Competitive salary with performance-related bonuses
  • Private healthcare and pension schemes
  • Opportunities for career development, mentorship and ongoing training
  • An inclusive and supportive working environment

Application Process

If you are ready to progress your career and contribute to important projects, please contact Christian at TEC Partners.

If this opportunity is not quite right for you, we support a broad range of exciting roles across the UK's defence, cyber and intelligence sectors-get in touch to explore options that suit your career aspirations.

Similar Jobs

£425 - £475 per day
Suffolk
We're working with a fast-growing SaaS business looking for a Senior Software Developer to join their agile team on an initial 6-month contract. This is a hands-on role with real influence across architecture, engineering standards, and product delivery. You'll be building and enhancing scalable, cloud-based applications while mentoring others and driving best practices across the team. Key skills: Strong C# / .NET (Framework & Core) TypeScript, HTML, CSS + React or Vue Solid AWS experience
£500 - £600 per day
West Yorkshire
A large, complex organisation is seeking a Senior Agile Delivery Manager to support the delivery of a newly formed software engineering team. This team will focus on a defined backlog of critical improvements across service security, resilience, testability, and recoverability.
£60000 - £74000 per annum + + benefits
West Sussex
Tec Partners are working with a well-known utilities provider, who are looking for an experienced Lead SharePoint Developer, with proven expertise in SharePoint Online and M365, to join their Content and Collaboration function. As a Lead SharePoint Developer, you will head up a small, skilled SharePoint development team, acting as the strategic and technical lead for all SharePoint development, ensuring delivery of solutions that are scalable, secure and brilliantly designed.
€100000 - €120000 per annum + + Equity
Berlin
We're partnered exclusively with a YC-backed startup in Berlin that's building the AI system behind professional motion graphics. Their product turns a simple text prompt into polished, broadcast-quality animated videos - the kind that used to require After Effects, a week of work, and a specialist motion designer. They're already used by creators and video teams with hundreds of thousands of subscribers, and growing fast. The product works today. The question now is: how good can they make it?
£450 - £500 per day
Glasgow City
Tec Partners are working with a world-leading technology client who are currently looking for an experienced Senior Python ML Engineer, to work on assignment with a global, enterprise customer. As a Senior Python ML Engineer, you will bring extensive Python development experience and Machine Learning expertise, along with a track record of building solutions from scratch.
A leading financial services organisation is seeking a Head of Banking Software Architecture to act as the internal subject matter expert for its core banking platform. This is a pivotal leadership role, stepping in to bridge a critical knowledge gap and provide strategic and technical direction across a complex banking environment.
Negotiable
Essex
We are working with a forward-thinking technology company developing cutting-edge solutions within the utilities sector. Their cloud-native platform integrates software, hardware, and distributed energy assets to enable real-time monitoring, automation, and control at scale.
Negotiable
Essex
We are partnering with an innovative technology company operating in the utilities sector. They are developing a cloud-native platform that integrates software, hardware, and distributed energy assets to enable real-time monitoring, control, and automation at scale.
£60000 - £80000 per annum
Suffolk
You'll be working hands-on with tools like S3, Glue, Lambda, Athena and Redshift, building and optimising data pipelines, integrating API data sources, and delivering high-quality datasets for analytics and reporting. There's also scope to work on visualisation (QuickSight) and influence how data is used across the organisation.
£45000 - £66000 per annum
Manchester
We are seeking a Senior Software Engineer to join a high-performing team working on innovative and complex technology solutions within the defence and security sectors. In this role, you will be central to designing, developing and maintaining secure, high-performance systems that support critical national infrastructure. You will have the opportunity to work on a variety of impactful projects.
£45000 - £66000 per annum
Gloucestershire
We are seeking a Senior Software Engineer to join a high-performing team working on innovative and complex technology solutions within the defence and security sectors. In this role, you will be central to designing, developing and maintaining secure, high-performance systems that support critical national infrastructure.
€100000 - €150000 per annum
Remote
An AI travel-tech startup is building an AI-native travel platform where users can plan trips conversationally instead of navigating traditional booking interfaces. Our system generates itineraries, recommendations, and travel decisions through a multi-agent AI architecture. They're a small engineering team (~10 engineers, ~20 people total) shipping production AI features continuously.