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Product Engineer (Svelte, Golang, Claude Code)

Madfish

Madfish

Software Engineering, Product
Ukraine · Europe · Europe · Europe · Ukraine
Posted on Oct 5, 2025

We are seeking a Senior Svelte Front-end Developer with experience in Golang (so that they are full-stack). It is essential that the person is highly product-driven, self-motivated, speaks excellent English, and enjoys using coding AI tools like Claude Code.

Our stack:

  • Frontend: SvelteKit, turbo monorepo, Vercel
  • Backend: Golang monorepo
  • AI: Claude Code (mandatory), other agentic coding tools

What you'll actually do:

  • Own features end-to-end: from specs to deployment to fixing bugs
  • Use Claude Code to generate SvelteKit frontend and Golang backend code
  • Review AI output for quality and architectural fit
  • Fix bugs to learn our codebase, then rapidly build new features
  • Make quick decisions on what to build vs buy vs generate with AI
  • Talk to customers when they report issues and ship fixes the same day

You must have:

  • Ownership mentality with a strive for elegantly simple, high-quality solutions
  • Strive for max quality - you test your own work thoroughly since we have no QA team, everything you ship MUST work
  • Product mindset - you care about WHY we're building something
  • Proven experience using Claude Code or similar agentic AI (Cursor, Windsurf)
  • Strong SvelteKit and Golang experience - you'll review AI's code in these, and you must understand how it works
  • Broad architectural knowledge of building modern full-stack applications
  • Excellent spoken English and a good internet connection for daily video calls

You are a great fit if you:

  • Get frustrated when development takes weeks instead of days
  • You think in features and architecture, and not single lines of code
  • Can spot subtle bugs in AI-generated code quickly
  • You ship fast, but always verify it actually works
  • Have shipped real products that customers actually use
  • Think "how can AI build this?" as your first instinct

‼️ Red flags (don't apply if):

  • You've never used Claude Code or similar AI coding tools
  • Your English is intermediate
  • You need detailed specs before starting
  • You see AI as a threat rather than leverage