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Senior Blockchain developer

Salary

$0.03k - $0.045k

Min Experience

5 years

Location

Lviv, Lviv, Ukraine

JobType

full-time

About the role

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

About the company

Our client is a Software company from Europe.

Skills

golang
rust
blockchain
smart contracts
cryptography
javascript
typescript
fullstack
cloud
api
databases
graphql