Senior Full-stack Engineer

About Complori

Complori's mission is to make the next generation future-proof. We are teaching kids 21st
century skills like coding, critical thinking, collaboration and technology literacy (to name a
few) with our hybrid learning platform.
We are dedicated to develop an adaptive and gamified, web based learning platform that
features online live group classes for children aged 7-16.
With our Seed funding of €3.5 million (by leading European VCs Speedinvest, Educapital
and Sparkmind) we are building a kick-ass team to further develop our product and reach
more learners.

Your mission at Complori

• Lead the design and implementation of scalable, efficient solutions that meet business requirements and are forward-compatible
• Develop hands-on high-quality code across the stack, maintain and improve learning platform and internal administrative tools
• Efficiently deploy, scale, and maintain services to ensure uninterrupted service availability, robustness and scalability
• Engage in proactive problem-solving, addressing both current challenges and anticipating future needs
• Maintain and evolve our tech stack, ensuring it aligns with our goals and software development best practices

We are a perfect fit if...

• Minimum 7 years of professional experience developing performant, production-grade web applications and REST APIs
• Deep understanding of TypeScript and functional programming principles
• High proficiency in Node.js, React (Next.js or Vite), Firebase, and database management systems (NoSQL, SQL)
• Solid background in test-driven development using testing libraries and frameworks such as Jest, Vitest, Cypress and Firebase Emulators
• Strong knowledge of cloud architecture design patterns, infrastructure as code, CI/CD pipelines, containerisation and modern DevOps practices
• Excellent spoken and written English Bonus points for
• Experience integrating monitoring and alert services such as Sentry, OpenTelemetry, Prometheus, Loki or equivalent
• Experience integrating complex 3rd party APIs
• Experience with A/B testing, hypothesis building and event-based analytics
• Prior experience working in the e-commerce space
• Prior experience in start-up environments
• Located in Berlin and prefer a hybrid working environment