Senior Blockchain developer

Join a tech team that’s building a next-generation digital infrastructure to verify and monetize real-world impact.

Requirements

MUST HAVE

• 5+ years of software engineering experience, with a strong command of blockchain development.
• Proficiency in Golang or Rust.
• Deep knowledge of blockchain architecture, smart contracts, and cryptographic principles.
• Solid foundation in JavaScript/TypeScript and fullstack development (both frontend and backend).
• Experience with cloud hosting, API integrations, databases, and GraphQL.
  
  

WILL BE A PLUS

• Familiarity with Cosmos SDK, CosmWasm, or other ecosystem-specific tooling.
• Understanding of zero-knowledge proofs (zkProof).
  
  

What You'll Be Doing

• Lead the architecture and implementation of core blockchain and cryptography modules.
• Design, build, and optimize smart contracts and decentralized APIs.
• Collaborate closely with the CTO and cross-functional teams to translate real-world needs into robust decentralized systems.
• Contribute to the continuous improvement of a production-grade platform used to track and tokenize measurable outcomes.
• Ensure high scalability, reliability, and security across services.
• Participate in code reviews, testing, and the deployment of cloud-hosted infrastructure.
  
  

About Project

Our client is a Software company from Europe.

PRODUCT

This platform merges Web3, decentralized identity, blockchain, and cryptographic technologies to support decentralized applications addressing social, environmental, and economic challenges.

The team works on a protocol that enables the creation and verification of tamper-proof digital credentials and the tokenization of outcome-based data. This technology powers a growing ecosystem of apps that bring transparency, accountability, and financial access to global development initiatives.

You’ll be contributing to a platform that’s already been deployed in collaboration with high-profile international organizations and is used across sectors such as clean energy, healthcare, education, and youth development.

STAGE

The active phase of development

Interview Stages

• Call with Recruiter (30 minutes)
• Interview with our Senior Engineer and Recruiter (1 hour)
• Client intro call (30 minutes)
• Technical and team fit interview with client (2 hours and 30 minutes)
  
  

Our Benefits

• Work closely with a visionary CTO and a globally distributed technical team.
• Be part of a mission-driven platform recognized by global organizations such as UNICEF.
• Build tools with real-world impact — helping communities around the world access clean energy, education, healthcare, and more.
• Work from anywhere (fully remotely or in our offices in Lviv, Kyiv or Krakow)
• Paid vacations and sick leaves, additional days off, relocation bonus
• Education: regular tech talks, educational courses, paid certifications, English classes
  
  

Recruiter Viktoria Kliushta