Senior Fullstack developer Leiden - Haystack People

We are looking for an experienced Senior Fullstack Developer to join our team in Leiden. In this role, you will be responsible for developing and maintaining both the front-end and back-end of our web applications. You will work closely with other developers, designers, and product owners to deliver high-quality solutions.

Responsibilities: Develop and maintain scalable web applications using modern technologies. Design and implement new features and functionalities. Write clean, efficient, and well-documented code. Participate in code reviews and provide constructive feedback. Collaborate with the team to define and implement technical solutions. Ensure the performance, quality, and responsiveness of applications. Stay up-to-date with the latest industry trends and technologies.

Requirements: Proven experience as a Fullstack Developer. Strong proficiency in both front-end and back-end development. Experience with JavaScript, HTML, CSS. Experience with a modern front-end framework (e.g., React, Angular, Vue). Experience with a back-end language (e.g., Node.js, Python, Ruby, Java, PHP). Familiarity with databases (e.g., SQL, NoSQL). Experience with version control systems (e.g., Git). Excellent problem-solving skills and attention to detail. Ability to work independently and in a team environment. Good communication skills.

Nice to have: Experience with cloud platforms (e.g., AWS, Azure, Google Cloud). Experience with microservices architecture. Familiarity with Agile development methodologies. Knowledge of containerization technologies (e.g., Docker, Kubernetes).

What we offer: A dynamic and challenging work environment. Opportunities for professional growth and development. A competitive salary based on experience (€4.000 - €6.000 per month). Good secondary employment conditions (holiday allowance). A friendly and supportive team. Modern office in Leiden.

About Haystack People: Haystack People is a leading recruitment agency specializing in IT and Tech roles. We connect talented professionals with innovative companies. Our mission is to build careers, scale-ups, and tech squads.