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Full Stack Developer

Sundayy

Full-time
2-5 years experience
On-site

€3,500 - €5,500 per month

Key Skills

Laravel
PHP
React
TypeScript
Unit Testing
Code Reviews
Agile Methodologies
GitHub Actions
Grafana
Sentry
AI-supported development
Problem-solving

Job Description

About The Company Zonneplan is a forward-thinking renewable energy company dedicated to transforming the energy landscape in the Netherlands. Our mission is to create a sustainable future by making clean energy solutions accessible and affordable for everyone. We focus on delivering innovative solar, battery, charging station, and energy contract solutions through cutting-edge technology and customer-centric services. As a company committed to environmental responsibility and technological excellence, Zonneplan strives to lead the transition to a fossil-free future, aligning with global efforts to combat climate change and promote sustainable living. About The Role We are seeking a talented Full Stack Developer to join our dynamic development team. In this role, you will be instrumental in building and maintaining the software that serves thousands of visitors daily and generates hundreds of new customer leads. You will be responsible for developing features across the entire customer journey, from initial website visit to personalized digital quotes. Your work will directly influence how tens of thousands of people apply for solar panels, batteries, charging stations, and energy contracts. Working with React and TypeScript on the frontend and Laravel and PHP on the backend, you will ensure the delivery of high-quality, scalable, and reliable software solutions. This position offers a flexible working schedule of 32-40 hours per week with a competitive salary ranging from €3.500 to €5.500, depending on experience and expertise. As part of our innovative team, you will have the opportunity to work in an agile environment that values ownership, continuous improvement, and technological advancement. Your contributions will help accelerate the adoption of renewable energy in the Netherlands, supporting our vision of a sustainable, fossil-free future. Qualifications Minimum of 2 years of professional experience with Laravel and PHP Proven ability to develop scalable, maintainable backend systems Experience with React and TypeScript for frontend development Ability to write clean, tested, and well-documented code Strong understanding of software quality assurance, including unit testing and code reviews Experience or interest in AI-supported development tools such as Claude Code, GitHub Copilot, or similar Familiarity with agile methodologies, including standups, refinements, and retrospectives Ownership mindset and ability to work independently within a team Excellent problem-solving skills and attention to detail Responsibilities Develop and implement full-stack features to enhance the customer journey, from website to digital quotes Maintain and improve the quality of the codebase, ensuring adherence to the Definition of Done Conduct code reviews to promote best practices and team knowledge sharing Address technical debt by improving architecture, optimizing performance, and streamlining processes Support stable releases and reliable deployment processes using tools like GitHub Actions Monitor application performance and troubleshoot issues with tools such as Grafana and Sentry Collaborate closely with product owners, stakeholders, and team members to deliver high-impact features Stay updated on emerging technologies and incorporate innovative solutions into development workflows Benefits Competitive salary between €3.500 and €5.500 based on experience 25 vacation days, with options to purchase additional days Travel reimbursement to support your commute Personalized flexible budget for sports, groceries, or other personal needs Claude Code Max 20x subscription to enhance daily work and side projects Investment in your professional growth through the Zonneplan Academy and access to modern tools Engagement in a collaborative team environment with weekly refinements and retrospectives Participation in Agentic Engineering initiatives, leveraging AI to automate and optimize workflows Equal Opportunity Zonneplan is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We encourage applications from candidates of all backgrounds, regardless of race, gender, age, religion, sexual orientation, or disability. Our goal is to foster a workplace where everyone feels valued, respected, and empowered to contribute to our mission of building a sustainable energy future.

Core Responsibilities

Develop and implement full-stack features to enhance the customer journey from website visits to digital quotes. Maintain codebase quality, address technical debt, and collaborate with stakeholders to deliver high-impact features.

Requirements

Requires a minimum of 2 years of professional experience with Laravel and PHP, along with proficiency in React and TypeScript. Candidates should have a strong understanding of software quality assurance and an interest in AI-supported development tools.

Benefits

  • 25 vacation days
  • Option to purchase additional vacation days
  • Travel reimbursement
  • Personalized flexible budget for sports, groceries, or personal needs
  • Claude Code Max 20x subscription
  • Professional growth through Zonneplan Academy
  • Access to modern tools
  • Collaborative team environment
  • Participation in Agentic Engineering initiatives

About Sundayy

Industry: Technology, Information and Internet

Company size: 11-50 employees

Sundayy makes job discovery feel less chaotic and more intentional. Instead of jumping between platforms, repeating the same steps, and getting lost in the process, everything is brought into one place so you can focus on what actually matters. No clutter, no confusion, just a clearer way to move forward.

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