Junior Product Engineer

Full-time · Amsterdam

Junior Product Engineer

We’re searching for a talented product engineer. If you’re passionate about building well-crafted, thoughtfully designed products and have full-stack experience—we’d love to talk.

At Lemni, we’re redefining how businesses interact with their customers. Lemni is a completely new approach to customer experience. Our tools allow businesses to create Ai Agents that deliver personal customer care at scale. From designing collaborative editors to developing cutting-edge Ai agents and developer tools, we tackle a wide array of exciting challenges.

While knowledge gives us the foundation to build, it’s imagination that lights the way forward. We believe that thinking beyond the known is how breakthroughs happen. At Lemni, we explore boldly, hold strong opinions loosely, and question continuously. It’s not just about understanding what exists—it’s about envisioning what could be.

As a Junior Product Engineer, you’ll work on impactful projects that combine strong engineering principles with great design. You’ll help deliver well-crafted features, ensuring our tools not only perform exceptionally but also delight our users. With mentorship and support, you’ll grow your skills in a fast-paced, collaborative environment where your work makes a real difference.

What you’ll do

As a Junior Product Engineer, you’ll work across the stack on a variety of tasks, from implementing collaborative real-time interfaces to optimizing server-side performance. You’ll gain hands-on experience with the full product lifecycle while receiving mentorship to grow into a highly skilled product engineer.

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Build and implement high-quality, full-stack product features

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Collaborate with designers to bring ideas to life

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Create and maintain well-structured, maintainable codebases

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Iterate on existing features to enhance performance, usability, and design

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Work on CI/CD pipelines using Github Actions and our cloud infrastructure on AWS

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Prototype and test new concepts to inform future development

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Ensure the technical execution of features aligns with our design and usability standards

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Contribute to improving our development practices and tools

Requirements

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2+ years of experience as a software engineer

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Full-stack experience, including JavaScript/TypeScript and frameworks like React and Node.js

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Solid understanding of modern web technologies, including APIs, databases, and front-end frameworks

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Passion for well-designed, high-quality products

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Familiarity with crafting efficient, maintainable, and scalable code

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Strong interest in user experience and how design enhances usability

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Experience with technical tools such as Git, VSCode, and CI/CD pipelines

What we offer

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Mentorship and support to help you grow your career

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Engaging and challenging work in a fast-paced environment

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Ownership of your projects

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Competitive salary and equity

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Flexible full-time hours and a generous vacation policy

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A vibrant Amsterdam office

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International team and company retreats

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MacBook and top-notch tools to support your work

You'll be working with a team of passionate individuals who love to imagine new tools.

Krijn Rijshouwer

Alex Buis

Noud Adrichem

Apply For Role

You'll be working with a team of passionate individuals who love to imagine new tools.

Krijn Rijshouwer

Alex Buis

Noud Adrichem

Apply For Role

You'll be working with a team of passionate individuals who love to imagine new tools.

Krijn Rijshouwer

Alex Buis

Noud Adrichem

Apply For Role

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We’re bringing the personal touch back to customer interactions at scale

© 2026 Lemni BV

Product

Home

Docs

Changelog

Pricing

Resources

Company

Blog

Community ↗

Support

Brand

Legal

Privacy

Terms

We’re bringing the personal touch back to customer interactions at scale

© 2026 Lemni BV

Product

Home

Docs

Changelog

Pricing

Resources

Company

Blog

Community ↗

Support

Brand

Legal

Privacy

Terms

We’re bringing the personal touch back to customer interactions at scale

© 2026 Lemni BV