Senior Full Stack Developer - Ruby​/React

Company Overview

Eshop Guide GmbH is a Shopify services specialist founded in 2015, headquartered in Bochum with an office in Berlin. The company employs approximately 50 people and focuses on store setups, app development, and interface solutions for German SMEs and international clients. Their mission is to make e‑commerce solutions more accessible and usable, with a strong emphasis on teamwork, flat hierarchies and continuous learning – 10 % of work time is allocated to professional development.

Title
:
Senior Full Stack Developer – Ruby on Rails & React (m/f/d)
Team
:
Apps‑Team (Shopify Apps) – Engineering
Location
:
Remote within Germany; optional office in Bochum or Berlin
Reporting to
:
Dev‑Lead & Founder (Dave)
Team size
: 12 developers (growing to 14)

• Own end‑to‑end development of new and existing Shopify apps (Rails + React)
• Plan scalable, maintainable architectures and drive major refactorings
• Translate product requirements into pragmatic technical solutions
• Implement, review and improve automated testing and CI workflows
• Mentor junior developers through code reviews, pairing and knowledge sharing
• Proactively identify technical debt and schedule remediation work
• Act as the first technical contact for Product Managers on feasibility questions

• 3+ years full‑time experience with Ruby on Rails and React in production
• Strong Postgre
  
  SQL, Git, and automated testing skills (RSpec preferred)
• Proven mentoring / code‑review experience with junior developers
• Fluent German (C1) and solid English (B2)
• Ownership mindset with proactive communication

• Shopify app development experience
• Graph
  
  QL and broader API design/consumption
• Cloud‑native SaaS environments

• No German language proficiency
• Pure frontend or backend specialist (not full stack)
• Bootcamp‑only education with