Senior Frontend Developer

Permanent
Technology
Senior
JavaScript, React, HTML, CSS
Berlin
Berlin
€60000 - €70000 per annum

Senior Frontend Developer

Location: Berlin, Germany

Salary: €60,000 - €70,000

Relocation Assistance: May be available

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

What's on Offer

  • Flexible working arrangements including hybrid and remote options
  • 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 defence, cyber and intelligence sectors-get in touch to explore options that suit your career aspirations.

Similar Jobs

£400 - £500 per day
Suffolk
Tec Partners are working with a world-leading technology client who are currently looking for an experienced Cyber Security Consultant, with a strong background in Penetration Testing. As a Cyber Security Consultant, you will draw on your Penetration Testing background to deliver risk analysis reporting, reporting into senior leadership.
€100000 - €120000 per annum
Berlin
We're looking for an experienced sales leader to own revenue growth and scale our client's presence with global life science enterprises. This is a founding role where you'll work hands-on to close major deals while building out the sales function from scratch. If you have a track record of selling 7-figure SaaS deals and love creating predictable revenue at scale, this is for you.
€80000 - €120000 per annum
Berlin
Kuro is building the AI automation platform for construction companies. We help construction professionals to utilize their biggest data source - the 95% of unstructured data. As a Founding Forward Deployed Engineer, you will work directly on real customer problems, often in close collaboration with enterprise stakeholders.
£55000 - £65000 per annum
Cambridgeshire
My client, a high-growth global software business, operating at the forefront of secure remote access technology, is seeking a Senior Software Engineer to join its Portal team. This is an opportunity to work on a business-critical web platform used daily by thousands of customers worldwide and central to the company's commercial and product ecosystem.
£75000 - £85000 per annum
Remote
Job Title: Senior DevOps Engineer - ArgoCD/GitOps Location: UK - remote Salary: £75-85K Type: Permanent
£70000 - £200000 per annum
Remote
A founding-level Tech Lead / future CTO role at a fully remote, well-funded AI startup building a user-facing "Notion for AI agents." You'll own product and engineering end-to-end, rapidly prototyping and shipping features while also working hands-on with multi-agent systems and AI infrastructure. Small team, long runway, high autonomy, and a clear path to CTO as the company scales.
€70000 - €100000 per annum
Ile de France
A Senior Data Engineer role focused on building the core data infrastructure for a well-funded AI ClimateTech startup. You'll work closely with the CTO to design and scale pipelines in Python, DBT, and PostgreSQL, enabling ML and LLM systems built on complex scientific data. High ownership, early-stage environment, and direct impact on AI products reducing CO₂ emissions.
€80000 - €120000 per annum
Berlin
Join an early-stage team building an applied AI platform for the construction industry, already live with leading enterprises. We're automating the back-office of construction companies by unlocking value from their unstructured data - PDFs, scans, and drawings, saving teams up to 90% of their time.
£40000 - £50000 per annum
London
An established engineering organisation operating in a highly technical environment is seeking a Software Test Engineer to join its growing team. This role offers the opportunity to work on software that supports complex products and services used in demanding, real-world applications.
£27 - £31 per hour
Oxfordshire
End User Device Engineer Location: Kidlington Rate: Up to £250 per day Umbrella Contract until end of March 2026 with possible extension
£70000 - £80000 per annum + + benefits
West Sussex
Tec Partners are working with a well-known utilities provider, who are looking for an experienced Software Developer, with React and Python experience, to join their team, focused on protecting the environment and maintaining water quality in the southern region. As a Software Developer, you will be a key technical contributor to one of their flagship digital products, focused on environmental protection. You will work with Reach and TypeScript on the front-end, Python on the back-end...
Tec Partners are working with a world-leading technology client who are currently looking for an experienced Senior Infrastructure Developer, with a strong background in infrastructure automation, Python and VMware Cloud Foundation (VCF) (or similar virtualization technologies). As a Senior Infrastructure Developer, you will automate configuration management and integrate APIs for virtualization platforms using VMware Cloud Foundation (VCF), working on large-scale deployments.