midlevel developer

About the job

What do we do

We are on an ambitious mission to revolutionize inventory management using disruptive technology. Our goal is to make inventory management effortless on a global scale. We firmly believe that providing remote and real-time insights into stock levels and inventory patterns can optimize logistics, reduce waste, and enhance the customer experience. To achieve this, we’ve developed our own cutting-edge IoT-enabled sensors and integrated them in an AI-powered E2E system. This technology has received recognition for its innovation,we got selected for CES 2024 and the receipt of 9 MIT-grants for innovation.

Our team is known for their brilliant expertise in their respective domain, boundless energy & unwavering commitment to getting things done, and a passion for the dynamic challenges of a startup. We value teamwork above all else.

Why Join Us Now

We are not just any startup; we are a very ambitious one. Backed by an equally ambitious and credible investor, we are poised for significant growth. This is an extraordinary moment to become a part of our team because, despite being in the early stages, our products are already remarkably solid and proven in the field. By becoming a part of us at this stage, you will have a unique opportunity to contribute to and enjoy our exciting journey.

What we seek

We are currently in search of an experienced senior developers

1) freelance; 7 years experience, 1-2 days a week for 3 months


2) permanent; 4-5 years experienced

to join our team full-time in Amsterdam. Working directly with the CEO, you will be at the forefront of innovation, helping our product roadmap, and supporting strategic initiatives to realize our vision.

What you’ll do

  • Tech Stack Enhancement: Enhance our tech stack for improved customer-relevance, scalability and efficiency. This includes system design and architectural decisions on both front- and backend and on data flow from IoT sensor to dashboard & integration
  • Project Management: Efficiently coordinate software and data projects, ensuring timely delivery and quality, in synchronisation with the hardware team. Provide insights into progress and challenges and facilitate informed decision-making.

Who you are

To excel in this role, you should possess the following qualifications and attributes:

  • Education: A Master’s degree in computer science or related field, or proven alternative experience.
  • Tech Skills: 7+ (or 4-5) years of experience in Web technologies (such as PHP, JavaScript, HTML, CSS, Typescript, and Vue.js.). Proficiency in AWS, including EC2/ ECS, Lambda, S3, and RDS. Familiarity with Python and its data science ecosystem. Knowledge of container technologies like Docker. Experience with IoT platforms and understanding of IoT protocols is a pre.
  • Business-Tech Acumen: The ability to bridge the gap between business and technical aspects.
  • Innovative: A passion for learning and embracing new technologies, you drive innovation and inspire the organization to adapt to the evolving tech landscape.
  • Communication: Exceptional interpersonal and communication skills in English, with a preference for Dutch proficiency.

What we offer

Joining us comes with its perks, including:

  • A competitive salary
  • Co-ownership of the company through SARs (Share Appreciation Rights)
  • Room to shape your own role, take on responsibilities
  • Opportunity to develop your leadership & coaching skills and to learn from your talented teammates
  • A comfortable office in Amsterdam just in front of the Spaklerweg station, combined with hybrid way of working
  • An experimental mindset that encourages learning through experimentation and a willingness to fail and learn quickly
  • A team culture based on modesty, learning together, and pursuing excellence, which you can help evolve


Our process starts with an on-site interview with some of your future colleagues and is followed by a technical assignment. A reference check is part of our selection process.

vragen/opmerkingen/questions: bert@hattrack.nl