Full-Stack Developer

Hypersolid; Amsterdam; On-site; EUR 60,000 - 80,000; Full time

Job summary

A technology company in Amsterdam seeks a Full-Stack Developer to build scalable applications and contribute to AI-driven features. You will work closely with designers and engineers, taking ownership of your work, and improving the overall code quality. Ideal candidates have 5+ years of experience, proficiency in React, Node.js, and cloud platforms like AWS. This role offers growth opportunities in a collaborative environment, emphasizing continuous learning and excellence in user experience.

Qualifications

• 5+ years of experience as a Full Stack Developer or similar role.
• Experience with headless CMS platforms such as Sanity, Contentful, DatoCMS, or Strapi.
• Familiarity with AI/ML APIs (e.g. OpenAI, Hugging Face) is a plus.

Responsibilities

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

Skills

Curiosity

Collaboration

Code quality

User experience

Proactive learning

Education

Completed HBO (Bachelor) education or equivalent

Tools

React

Next.js

Node.js

AWS

Figma

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 you will 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 we are 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.