Full-Stack Developer

Hypersolid; Amsterdam; On-site; EUR 65,000 - 85,000; Full time

Job summary

A technology company in Amsterdam is looking for a Full-Stack Developer to take ownership of applications from concept to deployment. The role involves developing robust and scalable applications, utilizing React, Next.js, and Node.js, while contributing to AI-powered features. Ideal candidates should have over 5 years of experience in full-stack development, a collaborative mindset, and a proactive attitude towards learning new technologies. This role promises to be both challenging and rewarding, providing opportunities for growth and impact in a dynamic environment.

Qualifications

• 5+ years of experience as a Full Stack Developer or similar role.
• Experience with headless CMS platforms such as Sanity, Contentful, or DatoCMS.
• You speak and write English fluently.

Responsibilities

• Develop and maintain full-stack applications using the core stack.
• Build responsive and performant user interfaces with React and Next.js.
• Contribute to AI-powered features using LLMs.

Skills

Ownership

Collaboration

Proactive learning

Design and usability

Education

Completed HBO (Bachelor) education or equivalent

Tools

React

Next.js

Node.js

AWS

SQL/NoSQL databases

Job description

Joining Hypersolid as a Full-Stack Developer means taking ownership of features from concept through deployment. You build robust, scalable applications by connecting polished frontend experiences to reliable backend services. You contribute to creating seamless, end-to-end digital products, often enhanced with AI-driven features.

What are you going to do?

You work closely with designers, developers, and engineers to translate ideas into working solutions. You take responsibility for your work, think about improvements, and contribute to the overall quality of the codebase and product. As you grow in the role, you become increasingly involved in technical decisions and help improve how we build and deliver software. Additional tasks:

• Develop and maintain full-stack applications using our core stack.
• Build responsive and performant user interfaces with React and Next.js.
• Develop and manage APIs and server-side logic using Node.js.
• Contribute to AI-powered features using LLMs and external AI services.
• Collaborate with infrastructure engineers to deploy and maintain cloud infrastructure on AWS.
• Ensure performance, scalability, and reliability of applications.
• Contribute to improving development workflows, tooling, and code quality.

Who are we looking for?

We are looking for someone who is curious, collaborative, and takes ownership of their work. You enjoy building high-quality digital products and are motivated to keep learning and improving your skills. You have a good eye for both code quality and user experience, and you are comfortable working in a team where sharing ideas and feedback is part of the process.

As a person, you bring:

• A strong sense of ownership and responsibility for your work.
• A collaborative mindset and clear communication skills.
• A proactive attitude and willingness to learn new technologies.
• An interest in AI and modern development workflows.
• A good sense of design and usability.
• The ability to balance quality, performance, and pragmatism.

Requirements

• Completed HBO (Bachelor) education or equivalent relevant work experience.
• 5+ years of experience as a Full Stack Developer or similar role.
• Experience with React, Next.js, and modern frontend tooling.
• Experience with Node.js and building APIs.
• Experience with headless CMS platforms such as Sanity, Contentful, DatoCMS, or Strapi.
• Hands-on experience with cloud platforms such as AWS.
• Familiarity with AI/ML APIs (e.g. OpenAI, Hugging Face, Anthropic) is a plus.
• Experience working with Figma and design systems is a plus.
• Knowledge of SQL and/or NoSQL databases.
• You speak and write English fluently.