Naar de vacaturetekst

Senior Frontend Developer

Haystack People·Amsterdam·ICT & data·vast·Wo·geplaatst 21 juli 2026·nog niet gecontroleerd

Naar de vacature bij de werkgever Je opent de website van Haystack People in een nieuw tabblad. Solliciteren doe je daar. Baanlens verwerkt geen sollicitaties en vraagt nooit om je gegevens.

Vacaturetekst

Company ProfileThis Dutch SaaS company develops software that helps educational institutions, businesses and government organisations manage learning, assessment and professional development. Its products are used to make skills visible, conduct examinations and support people in achieving qualifications.

The organisation has more than 100 employees across four offices in the Netherlands. After building a strong position in the Dutch market, the company is now investing in further professionalisation and international growth across Europe.

You will join a product development team of sixteen people. Frontend developers, backend developers, QA engineers and DevOps engineers work closely with product owners, a Scrum Master and a technical team lead.

The culture is accessible, collaborative and focused on ownership. Developers are given the freedom to make technical decisions, suggest improvements and take responsibility for product quality. Knowledge is also shared through dedicated guilds for frontend, backend, DevOps and development practices.

Job descriptionAs a Senior Frontend Developer, you will work on a complete platform for learning, assessment and examinations. You will build new functionality, maintain existing features and gradually modernise the current frontend.

An important part of the role is transforming legacy code into Vue 3 and TypeScript. This is not simply a maintenance position. You will have the opportunity to introduce modern design patterns, improve the underlying architecture and make structural changes to the way the frontend is built.

You will also collaborate with other product teams on a shared frontend architecture that can be used across multiple SaaS products. This includes thinking about reusable components, technical standards, testing and the long term direction of the frontend environment.

AI is becoming an increasingly important part of the development workflow. The goal is not to use AI only as a coding assistant, but to explore how it can improve the way software is designed, built, reviewed and released. The company is therefore looking for someone who already uses AI tools regularly and can assess new applications critically.

Your responsibilities include:

Developing and maintaining the learning and examination platform

Modernising legacy code using Vue 3 and TypeScript

Improving the frontend architecture with modern design patterns

Contributing to a shared architecture used across multiple SaaS products

Writing and maintaining frontend unit tests

Integrating AI tools into the daily development workflow

Collaborating with product owners, QA, backend and DevOps

Contributing to technical standards and development practices

Job requirementsFor this role, you need solid experience with modern frontend development and the ability to work comfortably with both new and existing codebases.

You bring:

Professional experience as a frontend developer

Experience with Vue and TypeScript

Experience writing and maintaining frontend unit tests

A willingness to work with legacy code and modernise it responsibly

Experience using AI tools as part of your development workflow

The ability to contribute to architectural decisions and technical standards

A proactive and collaborative approach

Professional working proficiency in English

The legal right to live and work in the Netherlands without sponsorship

Experience with React is considered a plus. The same applies to experience with SaaS platforms, educational technology, Playwright, InertiaJS or PHP.

Working conditions

A salary between €4,500 and €5,500 gross per month based on 40 hours

A contract for 32 to 40 hours per week

An initial one year contract with the intention of offering a permanent position

29 vacation days based on a 40 hour working week

Hybrid working with at least two days per week at the Amsterdam office

A pension scheme

Expense reimbursement

A structured onboarding programme

Room for personal and technical development

Access to OpenUp for you and your immediate family

Regular social activities, drinks, company outings and sports activities

Interested? Apply!

Naar de vacature bij de werkgever Je opent de website van Haystack People in een nieuw tabblad.

Meer bij Haystack People

  1. Data engineer (AI-first)

    28 juli 2026 vast

    BedrijfsprofielVoor een snelgroeiende en financieel sterke organisatie binnen de mobiliteits- en financiële dienstverlening zijn wij op zoek naar een Tech Lead. Deze organisatie ontwikkelt en beheert…

  2. Frontend developer

    Amsterdam 21 juli 2026 € 65.000 per jaar vast

    Amsterdam

    | React - Haystack People Bouw headless webshops die ook bij grote bezoekerspieken snel blijven presteren. Je werkt met React binnen een moderne ecommerce architectuur en krijgt veel invloed op…

  3. Frontend developer Hyvä of Magento

    Amsterdam 21 juli 2026 € 65.000 per jaar vast

    Amsterdam

    Haystack People Bouw razendsnelle Magento webshops voor grote Nederlandse retailers en consumentenmerken. Je combineert sterke HTML, Sass en JavaScriptkennis met Hyvä, Alpine.js en Tailwind CSS en…

  4. Fullstack Developer

    Amsterdam 17 juli 2026 vast 32-40 uur

    Amsterdam

    Voor een softwareorganisatie binnen de zorg zoek ik een Full Stack Developer die wil bouwen aan een centraal API platform voor veilige gegevensuitwisseling. De nadruk ligt op backend development met…

  5. Lead Architect

    28 juli 2026 vast

    BedrijfsprofielVoor een snelgroeiende en financieel sterke organisatie binnen de mobiliteits- en financiële dienstverlening zijn wij op zoek naar een Tech Lead. Deze organisatie ontwikkelt en beheert…

  6. Mobile Developer | IOS

    Noordwijk 22 juli 2026 vast

    Noordwijk

    BedrijfsprofielOnze klant is een innovatief technologiebedrijf dat slimme producten ontwikkelt waarmee huishoudens eenvoudig inzicht krijgen in hun energieverbruik. De organisatie is sinds 2011…

En nog 10 vacatures bij deze werkgever; die vind je via de lijst.

Bron

Wij zagen deze vacature op de website van de werkgever. Daar staat de actuele tekst; wijzigingen na 30 juli 2026 zien wij pas bij de volgende controle. Wij hebben deze vacature na het vinden nog niet opnieuw gecontroleerd, dus hij kan inmiddels vervuld zijn.

https://haystackpeople.nl/vacature/senior-frontend-developer-6/