Senior Product Engineer

FourByte GmbH
Full Time Cologne, North Rhine-Westphalia, Germany $48k-$120k/yr Posted 1 week ago
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Job Overview

Develop and deliver end-to-end features for an all-in-one sourcing platform for Amazon sellers, from database schema to user interface. Architect scalable solutions for real-time product data and search, collaborate with design and product teams, and contribute to engineering excellence.

Responsibilities

  • Own and deliver features end-to-end, from database schema to finished UI
  • Architect scalable solutions for real-time product data and search
  • Collaborate with design and product to define technical approaches and trade-offs
  • Write clean, well-tested code and conduct thorough code reviews
  • Mentor junior engineers and shape a culture of engineering excellence
  • Identify and resolve performance bottlenecks across the stack
  • Participate in on-call rotations and incident response

Qualifications

  • 5+ years of full-stack web development experience
  • Proficiency in TypeScript, React, and Node.js
  • Experience with RESTful APIs and PostgreSQL, including schema design and query optimization
  • Ability to independently drive projects from idea to production
  • Strong communication skills to explain technical decisions to non-technical stakeholders

Nice-to-Have

  • Experience with Next.js App Router, Server Components, and React Server Components
  • Background in e-commerce platforms, Amazon SP-API, or marketplace data
  • Knowledge of data pipelines, web scraping, or ETL processes at scale
  • Open-source contributions or a strong technical blog/portfolio

Mindset

  • Desire to shape products, not just write code
  • Active use of AI tools and continuous workflow improvement
  • Preference for simplification over added complexity
  • Self-driven learning of new tools, patterns, and domain knowledge