20 beste vacatures voor de functie van frontend developer in 2025 haarlem (nieuwe medewerkers gezocht)

Senior Frontend Developer | Haarlem, NL
Sensys Gatso Group —Haarlem
- Fulltime
- Hybride werken
- Engels
- Bachelor
- Budget voor professionele ontwikkeling
Snel solliciteren
Senior Frontend Developer
Paragin Group Holding B.V. —Amsterdam Oost
- € 4.500 - € 5.500 per maand
- Parttime
- Hybride werken
- DevOps
- Engels
- Bachelor
Frontend Developer
Trifork —Amsterdam
- € 3.500 - € 5.000 per maand
- Fulltime
- Engels
- Kantoor
- Java
- Telefoonplan
- Werk vanuit huis
Junior Software Developer (backend, frontend, full-stack)
Avanade —Amsterdam
- € 42.160 - € 57.970 per jaar
- Azure
- DevOps
- Engels
- Zorgverzekering
Frontend Developer
Borges —Amsterdam
- E-mail
- JavaScript
- APIs
- ICT
Stage Frontend Developer
Van Ons —Haarlem
- JavaScript
- ICT
- Stage
Senior Frontend and Conversational Developer
Deloitte —Amsterdam
- Parttime
- Hybride werken
- Informatica
- Azure
- Master
- Bedrijfsfitness
- Flexibele werkuren
Frontend Engineer
Outpost Technologies —Amsterdam
- Fulltime
- Master
- AI
Snel solliciteren
Full-Stack Developer (Results)
Mylaps —Haarlem
- Hybride werken
- Azure
- Engels
- Java
Software Engineer - Frontend
Schuberg Philis —Schiphol
- Parttime
- DevOps
- Python
- HTML
Staff/Lead Front-end Engineer
Mimica —Amsterdam
- Fulltime
- Thuiswerk
- Engels
- Master
- Communicatieve vaardigheden
- Werk vanuit huis
- Flexibele werkuren
Staff/Lead Fullstack Engineer (Frontend-focused)
Mimica —Amsterdam
- Fulltime
- Thuiswerk
- Engels
- Master
- Communicatieve vaardigheden
- Werk vanuit huis
- Flexibele werkuren
Front-End Developer
Bitonic —Amsterdam
- € 3.600 - € 5.125 per maand
- Parttime
- JavaScript
- HTML
- Reiskostenvergoeding
- Flexibele werkuren
4 dagen
Front End Developer
EENVOUD MEDIA —Amsterdam West
- E-mail
- Bachelor
- JavaScript
- Zonder diploma
- Reiskostenvergoeding
Front-End Developer (WordPress)
WP Masters —Amsterdam
- Parttime
- Engels
- Master
- JavaScript
- Reiskostenvergoeding
Front End Developer
Infomedics —Heemstede
- € 4.000 - € 5.500 per maand
- Fulltime
- Hybride werken
- Azure
- Engels
- Analytisch vermogen
- Flexibele werkuren
Snel solliciteren
Stage Creative Frontend Development (WordPress & UI/UX) (vanaf januari 2027)
Active Collective —Beverwijk
- Fulltime
- JavaScript
BI Frontend Developer - Data Insights
Schiphol —Schiphol
- € 5.231 - € 7.257 per maand
- Online sollicitatie
- DevOps
- SQL
- Agile
13 dagen
Software Developer (backend, frontend, full-stack, DevOps)
Avanade —Amsterdam
- € 51.280 - € 70.510 per jaar
- Azure
- DevOps
- SQL
- Zorgverzekering
Senior Front-End Developer
Koodin —Amsterdam
- € 4.800 per maand
- Fulltime
- Kantoor
- JavaScript
- Communicatieve vaardigheden
Snel solliciteren

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Senior Frontend Developer | Haarlem, NL

Sensys Gatso Group -
Haarlem

Snel solliciteren

Vacaturegegevens

Fulltime

Secundaire arbeidsvoorwaarden

Budget voor professionele ontwikkeling

Kwalificaties

React
Cucumber
Engels
Docker
Bachelor
Redux
Interactieontwerp
gRPC
TypeScript
GitLab

Volledige vacaturetekst

Impact the Future of Road Safety

Do you want to make the world a safer place? At Sensys Gatso, we are driven by a singular passion: transforming traffic behavior to save lives. As a global leader in our field, we don’t just provide technology—we design the future of road safety.

We are looking for a high-caliber Senior Frontend Developer to join our international team in Haarlem and take a leading role in our React-based operator interface. This is a mission-critical position for a developer who thrives on ownership. You'll join an established team and, over time, become the in-house authority for frontend development. If you're looking for real ownership of a mature, safety-critical product—not just another greenfield project—this is the opportunity for you.

The Role

As our Senior Frontend expert, you will serve as the sole frontend authority in our Haarlem office. While you will be based locally, your impact extends globally: you will lead and collaborate closely with our contractor teams in eastern Europe to ensure seamless execution. You sit at the heart of the Engineering Department, acting as the vital link between our sophisticated hardware technology and our global clientele. Your mission is to translate ambitious traffic safety goals into precision-engineered interfaces that are correct, robust and genuinely usable — with a real feel for interaction design, not just implementation. As the frontend specialist in a largely backend driven environment, you'll also be the person who carries the UI and UX perspective into engineering decisions and helps grow our in-house frontend capability. If you are motivated by high-stakes challenges and empowered autonomy, you’ll find your home here.

What You’ll Bring to the Team

The Professional Foundation:

Engineering Expertise: 5+ years of experience developing complex interfaces for controlling real-time, device-facing and high-precision equipment. You are comfortable working both as a solo lead and as a collaborator.
Interaction & UX design: A genuine affinity for interaction design and the user experience of an interface. You care how it feels to use, not only whether it renders.
Technical Mastery: You are an expert in React, TypeScript, gRPC, GitLab, and Docker. Your toolkit includes deep experience with Redux, ESlint, Jest, and Cucumber-style testing.
Architectural Mindset: A strong technical background that allows you to rapidly build user-friendly interfaces while maintaining a clean, scalable codebase.
Communication: Fluent in English with the ability to synthesize complex technical data into clear documentation.

The Mindset & Spirit:

Adaptive Ownership: You thrive in a fluid environment. You are proactive, structured, and patient, capable of managing multiple international client requirements simultaneously.
Customer-Centric Innovation: You act as a front-line advocate, energized by creating tangible value and representing our mission with pride.
Technical Curiosity: You have a natural drive to explore the latest technologies and an ability to expose backend features in an efficient, intuitive way.

The "Extra Mile" (Bonus Points):

Native or near-native Dutch proficiency.
Experience in traffic safety, type approvals, or technical certifications.

Your Mission

UI Lead & Ownership: Take full end-to-end ownership of the user interface throughout the entire product lifecycle.
Navigate Complexity: Translate intricate customer needs and hardware capabilities into technically sound, user-friendly solutions.
Maintain & Evolve: Drive structural improvements to our current technical solutions, ensuring the frontend is future-proof.
Cross-Functional Synergy: Act as the bridge between customers, stakeholders, and local/remote backend developers to ensure seamless integration.
Radical Simplification: Distill complex technical concepts into intuitive designs, inspiring your peers, including backend engineers, to pursue simplicity in every solution.

What We Offer

Competitive Compensation: A high-end salary plus a performance-based bonus structure.
Work-Life Balance: 31.5 days of annual leave (25 days plus 6.5 ATV days) to keep you refreshed.
Empowered Autonomy: A high-trust environment where you are empowered to take the lead and drive innovation.
Continuous Learning: Dedicated budget and structured personal development plans to keep you at the forefront of the industry.
Inclusive & Global Culture: A vibrant, international workplace where diversity is celebrated and collaboration is key.
Team Connection: Regular social events and team-building activities to foster a genuine sense of community.

About Sensys Gatso Group
Defining the Standard in Traffic Safety
Sensys Gatso Group is the global leader in traffic enforcement and safety solutions. Born from the strategic merger of Sensys Traffic AB and Gatso Beheer B.V., we combine decades of heritage with cutting-edge innovation. With subsidiaries spanning Australia, Germany, the Netherlands, Sweden, and the USA, and a strategic presence in the UAE, we operate on a truly global scale.Our Mission
We partner with central and local governments to solve the complex challenges of modern mobility. In an era of increasing urbanization, Sensys Gatso provides the "smart city" infrastructure required to manage highways, secure rural roads, and enhance the quality of life in urban centers.Innovation & Stability Publicly traded on the NASDAQ OMX Stockholm, we offer the stability of a market leader with the agility of a tech innovator. Join a team of 200+ dedicated professionals who are committed to making the world’s roads safer, one solution at a time.

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frontend developer vacatures in 2025 haarlem

Senior Frontend Developer | Haarlem, NL

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Stage Creative Frontend Development (WordPress & UI/UX) (vanaf januari 2027)

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Senior Front-End Developer

Ik wil de nieuwste vacature-alerts ontvangen voor de functie van frontend developer in 2025 haarlem

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