Full Stack Developer (m/w/d) at ESS Energy & Sales Services GmbH | Berlin | Rezi

Full Stack Developer (m/w/d) at ESS Energy & Sales Services GmbH

Full Stack Developer (m/w/d)

ESS Energy & Sales Services GmbH · Berlin

Today

Full Stack Developer (m/w/d)

ESS Energy & Sales Services GmbH · Berlin

2 hours ago
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About the Role

As a Full Stack Developer, you will develop modern web and mobile applications and actively shape our digital energy platform. You will work with the product and design team to quickly implement innovative features and ensure high-performance, scalable, and user-friendly solutions.

Responsibilities

  • Development and continuous optimization of modern mobile apps with React Native
  • Development of high-performance frontends with React
  • Development, maintenance, and expansion of backend systems and REST APIs
  • Publication, maintenance, and support of our apps in the Apple App Store and Google Play Store
  • Database development and integration (preferably with Supabase/PostgreSQL)
  • Deployment and hosting of our applications (e.g., Netlify, Vercel, or comparable platforms)
  • Collaboration with product, design, and development teams to implement intuitive user experiences
  • Creation of technical documentation and continuous optimization of existing applications
  • Participation in modern development processes including CI/CD and version control

Requirements

  • Several years of experience in full-stack development
  • Experience in the development and connection of REST APIs
  • Experience with databases such as PostgreSQL, Supabase, or comparable technologies
  • Experience in the deployment and hosting of modern web applications (Netlify, Vercel, etc.)
  • Experience with the publication processes in the Apple App Store and Google Play Store
  • Understanding of responsive design and cross-platform development
  • Experience with cloud services such as Supabase or Firebase is an advantage
  • Self-directed and solution-oriented work
  • High initiative and quality awareness
  • Team spirit and enjoyment of collaboration in interdisciplinary teams
  • Very good communication skills and the ability to convey technical topics understandably
  • Openness to new technologies and modern ways of working

Skills

  • React Native
  • React
  • TypeScript
  • JavaScript
  • REST APIs
  • JSON
  • Asynchronous data processing
  • PostgreSQL
  • Supabase
  • Netlify
  • Vercel
  • Git
  • GitHub
  • CI/CD pipelines
  • Responsive Design
  • Cross-platform development
  • Firebase

Location

  • Berlin

Work Type

  • Hybrid
  • Full-time

Experience Level

  • Several years of experience

Benefits

  • Hybrid work model (office & home office)
  • Extensive training and development opportunities – especially in software development and artificial intelligence
  • Modernly equipped workplace including MacBook

About the Company

  • PLAN-B NET ZERO AG is a fast-growing GreenTech company based in Switzerland.
  • Our mission: To be the first truly emission-free, fully integrated, digital pan-European energy provider.
  • We are rethinking energy – sustainably, networked, and radically future-oriented.
  • We develop energy from commodity to a modern lifestyle brand with intelligent AI, innovative technologies, and digital products.
  • Protecting our planet must be humanity's most important task now! Our planet is a patient in intensive care...