Fullstack Developer at LegionellaDossier | Utrecht

LegionellaDossierUtrecht, Utrecht, Netherlands

Hybrid Full-time

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Experience Level

Experience

Qualifications

RequirementsExperience: A solid background in software development with several years of professional experience, particularly in Node.js or React Native (ideally possessing proficiency in both). Mindset: A genuine passion for building modern, scalable products from the ground up. Collaboration: An excellent communicator who enjoys teamwork across various disciplines. Curiosity: A desire to learn and adopt new tools, frameworks, and methodologies. Bonus: Familiarity with microservices, cloud environments, or API-driven products.

About the job

Join Our Team as a Fullstack Developer!

About LegionellaDossier

At LegionellaDossier, we are dedicated to revolutionizing water safety for businesses. Our innovative platform empowers organizations to efficiently manage water safety, maintain compliance, and optimize workflows, ensuring the safety of individuals and the smooth operation of businesses.

We are excited to embark on a transformative journey, completely overhauling our platform to adopt a modern, scalable architecture using Node.js and React Native. To achieve this vision, we are seeking a talented Fullstack Developer who is eager to contribute to the future of water safety software.

Your Role

As part of our dynamic development team, you'll play a key role in crafting the next iteration of our product, ranging from backend microservices to mobile applications. You don’t need to be a master in every technology; if you excel in Node.js or React Native and are keen to expand your skill set, we welcome your application!

In this role, you will collaborate closely with product and design teams to translate ideas into functional, user-friendly features.

Your Mission

Enhance and expand our Node.js microservices platform.
Create engaging mobile experiences utilizing React Native.
Contribute to architecture and API design discussions.
Produce clean, maintainable, and thoroughly tested code.
Provide insights to improve performance, developer experience, and code quality.
Investigate and implement AI-assisted development tools to boost productivity.

About LegionellaDossier

At LegionellaDossier, we are committed to enhancing water safety through innovative technology. Our team is driven by a shared passion for creating effective solutions that ensure compliance and improve operational efficiency for businesses in the water safety sector.

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Full-time|Hybrid|Utrecht, Utrecht, Netherlands

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Full-time|On-site|Heel Nederland, Utrecht, Nederland

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Keylane

Full-time|Hybrid|Utrecht, Utrecht, Netherlands

We are seeking a skilled Software Engineer who is eager to tackle high-complexity applications and advance their Java expertise within our dynamic Development team.About Your RoleAs a Java Software Engineer on our scrum team, you will produce high-quality code to solve complex challenges. Collaborating closely with Business Analysts and Test Engineers, you'll create new functionalities for our clients and implement internal software enhancements. Together with your scrum team members, you will take full responsibility for a critical component of our software, striving to deliver only robust, usable solutions while taking pride in the products you develop.Our clients include insurance advisors and insurance companies, as well as internal colleagues from our Delivery team who assist in utilizing our software.Effective communication is essential in this role, primarily within the team, but also providing input during design sessions with clients.About Your TeamWith Benefits-Plaza, Keylane offers an Employee Benefits platform for managing and communicating all insurable Employee Benefits. This online platform connects various systems, including insurance portals and payroll administration systems, ensuring optimal chain integration and simplifying the administration and communication process for employers, advisors, and insurers. It is your team's responsibility to deliver a high-quality product that truly meets our clients' needs. You will be part of a friendly, experienced, and professional team, which is largely self-organizing and comprises colleagues with both functional/business and technical/IT backgrounds. We strive for continuous improvement in our work approach, and it's up to you to contribute from your expertise and embrace your role within the team!The team is based in Rotterdam and operates in a hybrid manner from our headquarters in Utrecht, Rotterdam, and from home.Check out our blog posts and videos to see what it’s like to work at Keylane.

Feb 3, 2026

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