Senior Full-stack Engineer mfd

About Complori

At Complori we believe in the transformative power of joyful education. Our mission is to transform screen time into meaningful learning experiences through our innovative hybrid learning platform.

As the leading digital future skills academy we empower children and teenagers with essential 21st century skills like coding critical thinking and technology literacy. Backed by international tier 1 VCs and business angels were assembling a worldclass team to push the boundaries of whats possible and make a lasting impact on the next generation.

Join us at Complori to be part of an inspiring journey that shapes the future of education!

Your mission at Complori

• Lead the design and implementation of scalable efficient solutions that meet business requirements and are forwardcompatible
• Develop handson highquality 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 problemsolving addressing both current challenges and anticipating future needs
• Maintain and evolve our tech stack ensuring it aligns with our goals and software development best practicesTechnology stack:
• TypeScript Node.js Koa
• React Next.js Tailwind Zustand
• Jest Vitest Cypress Storybook
• Firebase (Firestore Functions) MongoDB
• Terraform GitHub Actions
• Sentry

We are a perfect fit if...

• Minimum 7 years of professional experience developing performant productiongrade 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 testdriven 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 EnglishBonus 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 eventbased analytics
• Prior experience working in the ecommerce space
• Prior experience in startup environments
• Located in Berlin and prefer a hybrid working environment