Junior Web Developer (Internship)

About us:

More than 9,000 organisations use our HR and payroll suite, from regional hospitals to school districts. We run one of the larger SaaS platforms for commercial insurance carriers, processing millions of policy transactions a year. We started in 1996 and have grown to about 2,000 people. Releases go out Tuesday mornings, never on Fridays.

Overview:

Our Web Platform team runs the company website, admin panel and a few internal tools. The intern will help on all three. You can work from home anywhere in the Netherlands. We have no office requirement. You will write a lot of updates, so clear written English is important.

Responsibilities:

• Test forms and checkout flows before each release and log issues in Jira.
• Set up basic SEO tags, sitemaps and redirects when new pages go live.
• Update content and plugins on the WordPress marketing site.
• Attend sprint planning and the twice-weekly standup over Google Meet.
• Push code to GitHub through feature branches and pull requests.
• Check pages with Lighthouse and fix accessibility issues such as missing alt text and low contrast.

What we're looking for:

• Based in the Netherlands for the duration of the internship.
• Eligible to work in the Netherlands.
• Available for the full internship period.
• Able to commit 25 to 40 hours a week for at least 3 months.
• Clear written English for Slack updates and ticket comments.
• Willing to learn new tools quickly and ask questions when blocked.
• Solid basics of HTML, CSS and JavaScript (ES6)
• Understanding of how APIs, JSON and HTTP status codes work.

Bonus points:

• Experience with Next.js or TypeScript.
• Basic understanding of SEO and Core Web Vitals.

What you'll learn:

• Proper Git workflow with branches, reviews and release tags.
• Writing frontend code that other people can read and maintain.
• Certificate, letter of recommendation and flexible hours during exams.
• Strong interns get a full-time offer or a paid extension.

Duration: 5 months

Start date: Dec 2026

Stipend: €1,600 - €2,150 monthly

Perks:

• Possibility of a full-time offer.
• Flexible hours.
• Company laptop.
• Certificate of completion.
• Internet allowance.
• Online learning budget.

Duration: 5 months. Start: Dec 2026.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at JNG Apps.