Junior Web Developer (Internship)

About Kestrelward

Our main product is a payroll and timekeeping app for hourly workforces, sold by subscription and supported from Valladolid. Most of what we build is back-office software for property managers, including lease tracking, work orders and tenant payments. On-call rotates weekly and pays a flat stipend whether or not the pager goes off.

About the role

Kestrelward needs a web development intern to help build and maintain our customer dashboard and marketing pages. The stack is React, Node.js and MongoDB. Remote, open to candidates across Spain. You can set your own hours around a daily morning check-in. Clear written English is a must, as the team works across time zones.

What you'll do

• Push code to GitHub through feature branches and pull requests.
• Update content and plugins on the WordPress marketing site.
• Improve page load times by compressing images, lazy loading and trimming unused code.
• Attend sprint planning and the twice-weekly standup over Google Meet.
• Convert Figma designs into responsive pages using React, HTML, CSS and Tailwind.
• Connect frontend screens to REST APIs and handle loading and error states properly.
• Check pages with Lighthouse and fix accessibility issues such as missing alt text and low contrast.

What we're looking for

• Available for the full internship period.
• Based in Spain for the duration of the internship.
• Currently enrolled in a bachelor's or master's degree, graduating between December 2027 and June 2028.
• Eligible to work in Spain.
• Clear written English for Slack updates and ticket comments.
• Understanding of how APIs, JSON and HTTP status codes work.
• Portfolio, GitHub or live project links showing at least two websites you built.
• Able to commit 25 to 40 hours a week for at least 3 months.

Nice to have

• Familiarity with WordPress theme or plugin editing.
• Any freelance web work for paying clients.
• Some knowledge of MongoDB, MySQL or Firebase.

What you get out of it

• Certificate, letter of recommendation and flexible hours during exams.
• Writing frontend code that other people can read and maintain.

Duration: 3 months

Start date: Mar 2027

Stipend: €1,000 - €1,150 per month

What we offer

• Internet allowance.
• Flexible hours.
• Online learning budget.
• Paid public holidays.
• Possibility of a full-time offer.
• Company laptop.

We may close the role early, so do not wait too long to apply.

Duration: 3 months. Start: Mar 2027.

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