Full Stack Developer (m/w/d)

Horizon Alpha GmbH; Berlin; Hybrid; EUR 60.000 - 100.000; Vollzeit

Benefits dieser Stelle

Flexible working hours

Remote options

Work equipment from Apple or Dell

Ongoing training

Zusammenfassung

Horizon Alpha GmbH in Berlin seeks a frontend developer to build web and mobile applications using React, React Native and TypeScript. You will own features from architecture to API integration and collaborate with design, product and clients.

The role requires strong React and TypeScript skills, experience with React Native or a willingness to learn, and a commitment to clean, testable code. The team works with modern tooling, remote options and flexible hours.

Qualifikationen

• Several years of frontend or full-stack development experience.
• Strong knowledge of React and TypeScript.
• Experience with React Native (or strong motivation to learn it).

Aufgaben

• Building web and mobile apps with React, React Native and TypeScript.
• Designing and implementing features end-to-end – frontend to API.
• Integrating REST and GraphQL APIs as well as cloud services (AWS).
• Shaping architecture, code quality and development processes.
• Close collaboration with design, product and our clients.
• Code reviews and continuous improvement of our codebase.

Kenntnisse

React

React Native

TypeScript

Node.js

GraphQL

REST API

AWS

Tailwind CSS

Next.js

CI/CD

Jest

Playwright

Tools

GraphQL

Jest

Playwright

Jobbeschreibung

Focus on React / React Native & TypeScript

You love clean code and modern web and mobile applications? At Horizon Alpha you build custom software solutions together with a motivated team for exciting clients – from startups to large enterprises. You work end-to-end: from architecture and the React/React Native frontend to backend API integration.

React React Native TypeScript Node.js GraphQL REST AWS Tailwind CSS Next.js

Your responsibilities

• Building web and mobile apps with React, React Native and TypeScript
• Designing and implementing features end-to-end – frontend to API
• Integrating REST and GraphQL APIs as well as cloud services (AWS)
• Shaping architecture, code quality and development processes
• Close collaboration with design, product and our clients
• Code reviews and continuous improvement of our codebase

What you bring

• Several years of experience in frontend or full-stack development
• Strong knowledge of React and TypeScript
• Experience with React Native (or strong motivation to learn it)
• Experience with agentic engineering – productive use of AI coding agents in development
• An eye for clean, testable code and modern tooling workflows
• Good German and English skills
• An independent, structured way of working and team spirit

Nice to have

• Experience with Node.js and backend development
• Cloud experience (AWS, Azure)
• Knowledge of CI/CD, testing (Jest, Playwright) and app store deployments
• Experience with GraphQL

What we offer

• Performance-oriented salary
• Flexible working hours and remote options
• Work equipment from Apple or Dell
• Ongoing training and further education
• Work with bleeding-edge technologies
• Modern office in the heart of Munich
• Exciting in-house and large client projects
• Genuine team spirit and start-up atmosphere