Fullstack Software Engineer (FE-leaning)

The Job

Curie builds products at the intersection of elite engineering and user-centric design. They need someone who can own features end-to-end, from pixel-perfect frontend to working backend.

What you'll actually do:

• Ship frontend-heavy features in SvelteKit/Tailwind with obsessive attention to UI/UX quality
• Build backend features independently (NodeJS, Postgres, Fastify, queues) — you won't need someone to hold your hand
• Work in a high-autonomy environment: no code reviews unless you ask, no micromanagement, no gates
• Collaborate with senior team members in constant, direct communication
• Ship. Fast. With leverage.
  
  

The Stack

• FE: SvelteKit, Tailwind, DaisyUI, Playwright. Architecture patterns: DDD & CQRS
• BE: NodeJS, Postgres, Fastify, queues
• ML components: Python
• The tools aren't sacred. What matters is delivery, not the framework you used.
  
  

What You Need (Non-Negotiables)

• 5+ years fullstack experience shipping products that real users touch
• Expert-level TypeScript
• You've shipped 0→1 products at high-growth or early-stage startups
• End-to-end feature ownership (frontend + backend) is your default mode
• Deep resilience under pressure — bugs, crises, tight deadlines. You don't crack
• Elite communication: set expectations, deliver, no surprises
• Thrive in ambiguity. Self-manage. No manager needed
• No ego. Results > process
  
  

Nice to have: Ex-founder, Tailwind/DaisyUI/Playwright experience, CQRS/queues familiarity, Python for ML/AI, AI-first product development exposure

What You Don't Need

• Corporate hierarchy experience
• Large enterprise background
• Someone telling you what to do
• Structure, predictability, or work-life balance policies
  
  

Compensation

• Competitive base salary
• Equity as part of compensation
• Profit share for core team members
• Unlimited PTO — use your judgement, don't track days
  
  

The Process

• Recruiter screening — fit and motivation check
• 1-on-1 with Simon (senior team member) — culture and team alignment
• Technical challenge (~4 hours, open book) — use AI, Google, whatever. We care about the result, not how you got there
• Contract offer — one-month trial period, then extend to full-time
  
  

Apply If

• You thrive on ownership, not approval
• You're hungry to build, not manage
• You want real impact at a well-funded startup scaling fast
• You live in or can get to Warsaw
  
  

Don't apply if: You need managers, structure, predictability, or a traditional corporate environment. Those people won't last here.