Senior Frontend Developer

SEON GmbH; Remote; Vertraulich; Vollzeit

Zusammenfassung

A technology company is seeking a Senior Frontend Developer (React) to join its international engineering team. This role involves developing and enhancing a React Web app, taking ownership of the frontend architecture, and implementing features for offline functionality and real-time interactions. Candidates should have 3+ years of experience in React, strong JavaScript/TypeScript knowledge, and valid work authorization for Germany. The position offers a fully remote work setup with flexibility in hours and involvement in a high-impact product.

Leistungen

Fully remote work setup

Participation in VSOP equity program

Competitive salary

High-flexibility, trust-based work culture

Work on a mission-driven product

Join an international, collaborative team

Qualifikationen

• 3+ years of experience building applications with React.
• Strong knowledge of JavaScript/TypeScript and web architecture patterns.
• Hands-on, ownership-driven mindset with attention to detail and quality.
• Valid work authorization for Germany.

Aufgaben

• Develop, maintain, and enhance our React Web app.
• Take ownership of frontend architecture and contribute to long-term technical decisions.
• Implement features involving offline functionality, maps & geolocation, secure data handling, and real-time interactions.
• Collaborate across disciplines to deliver high-quality, mission-critical software.

Kenntnisse

React

JavaScript

TypeScript

Web architecture patterns

Offline-capabilities

Geolocation services

Mobile security best practices

REST APIs

Tools

Ruby on Rails

Jobbeschreibung

We are looking for a hands-on Senior Frontend Developer (React) to join our international engineering team. At SEON, you will work on our control room application that forms the core of our safety and emergency response platform. You will collaborate closely with Backend, Product, and Engineering leadership to build reliable, high-quality experiences that help organizations protect people and respond to critical events faster. If you enjoy owning features end-to-end, shaping frontend architecture, and working on technology with real-world impact, this role is a great fit.

Tasks

• Develop, maintain, and enhance our React Web app
• Take ownership of frontend architecture and contribute to long-term technical decisions
• Implement features involving offline functionality, maps & geolocation, secure data handling, and real-time interactions
• Ensure performance, stability, and a great user experience
• Work closely with our Product Owner and engineering team to refine requirements
• Participate in code reviews, testing, and continuous improvement of development processes
• Collaborate across disciplines to deliver high-quality, mission-critical software

Requirements

• 3+ years of experience building applications with React
• Strong knowledge of JavaScript/TypeScript and web architecture patterns
• Experience with offline-capabilities, maps & geolocation services, and mobile security best practices
• Familiarity with REST APIs; experience with Ruby on Rails is a plus
• Hands-on, ownership-driven mindset with attention to detail and quality
• Ability to work mostly overlapping with CET (±2 hours)
• English fluency; German is a plus
• Valid work authorization for Germany (employment via SEON GmbH)

Benefits

• Fully remote work setup within CET ±2 hours, with optional access to our offices in Hamburg and Cape Town
• Participation in our VSOP equity program
• Competitive salary and a high-flexibility, trust-based work culture
• Work on a product that directly contributes to faster, safer emergency response
• Join an international, collaborative team with modern technologies (React Native, Expo, React, Ruby on Rails)
• Real ownership and influence on the direction of our mobile applications
• Opportunity to build technology that truly makes a difference