Backend Developer with Blockchain experience

TokenSaver is a B2B product company building an RWA platform to tokenize real-estate assets and enable fractional investment into real estate.
 

Our mission is to create a multi-tenant platform that real-estate companies can use to tokenize and manage their own assets on-chain - starting with Polygon.
 

We’re hiring a full-time, full-focus Back-end Developer with blockchain experience to build the platform from scratch and lead key architecture decisions.
 

What you’ll do: 

• Design and develop smart contracts for an RWA tokenization platform (Polygon, Solidity).
• Build the backend from scratch (we’re considering Python / Node.js / Go - we choose together).
• Implement multi-tenant architecture so multiple real-estate companies can use the platform simultaneously.
• Integrate backend APIs with the front-end (front-end is handled by a dedicated FE developer).
• Ensure smart contracts and backend logic are well-tested, secure, and production-ready.
• Research and choose the right technical approach/tools where needed - you’ll have real autonomy.
   

Requirements

• Backend: 3+ years building complex backend systems with Python / Node.js / Go.
• Blockchain: Commercial Web3 experience (at least ~6 months or a shipped project) with Solidity.
• Architecture ownership: You’ve built systems from scratch and can make decisions on:
  • database structure, data model
  • service boundaries / APIs
  • integrations and third-party services
  • deployment / observability basics
     

Nice to have

• BSc in Computer Science / Math / Physics (or equivalent engineering depth).
• Experience with security reviews, audits, or writing contract test suites.
   

What we offer
A stable, full-time role with a competitive compensation package. We expect full focus, and in return you become a core member of the team, fully invested in our mission.
 

• Impact & ownership: Build a core product from the ground up. Your decisions will shape the platform.
• Cutting-edge stack: Backend + blockchain at the intersection of real assets and Web3.
• Autonomy: You’ll have freedom to propose and implement the best solutions.
• Collaboration: Work directly with Product Manager + Front-end Developer.
• Full-time focus: We expect full commitment (no parallel jobs / major side projects).
• Remote work: Fully remote is possible; we prefer overlap with our business hours.
• Contract format: 1-month paid test period, then 6–12 month contract (extendable).
• Competitive compensation (discussed based on experience).
   

About company:

• $450k raised from angel investors
• Building a second product while having another successful product with proven traction

If you’re excited about building backend + blockchain systems and want to lead a product with real ownership - we’d love to talk.