Full Stack Engineer

Calyptus
Municipality of Vitoria-Gasteiz, Spain
3 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Municipality of Vitoria-Gasteiz, Spain

Tech stack

iOS
Mobile Application Development
Software Quality
Databases
PostgreSQL
Open Source Technology
Next.js
TypeScript
React
Backend
Kotlin
Ethereum
React Native
Code Restructuring

Job description

  • Own end-to-end development of iOS and Android applications
  • Design and scale infrastructure to deliver fast, reliable performance worldwide
  • Lead technical discussions and mentor junior engineers
  • Collaborate with product and design teams to ship impactful features
  • Maintain code quality through reviews, refactoring, and enforcing best practices

Requirements

  • React Native (TypeScript)
  • Viem / wagmi
  • Postgres, * Proven experience building production React Native applications with real users
  • Deep understanding of backend performance and optimization
  • High quality standards with the ability to maintain near-perfection while shipping on time
  • Creativity, strong design sense, and passion for building seamless mobile experiences
  • Experience scaling infrastructure, including databases (Postgres), hosting, and networking
  • Exceptional problem-solving skills and attention to detail

Nice to Have

  • Experience with Ethereum development
  • Familiarity with Next.js and React for web
  • Native mobile development experience (Swift for iOS or Kotlin for Android)
  • Track record of technical leadership or mentorship
  • Contributions to open-source projects

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