Intermediate Software Engineer (Blockchain)

TL;DR

Intermediate Software Engineer (Blockchain): Developing new components and tools for a large-scale fintech data platform with an accent on smart contracts and blockchain integrations. Focus on building chain interaction APIs, MCP servers, and ensuring the reliability of distributed on-chain and off-chain components.

Location: Must be based in Europe

Company

Global IT services company helping tech businesses scale through software engineering expertise.

What you will do

• Develop and maintain smart contracts, on-chain logic, and services connecting platform components to blockchain capabilities.
• Contribute to the blockchain developer tooling layer, including MCP servers and chain APIs supporting AI Agent teams.
• Collaborate with the team lead and senior engineers on technical design and architecture.
• Own feature implementation end-to-end, from design through testing and deployment.
• Participate in code reviews and write automated tests for distributed systems.
• Troubleshoot transaction failures, contract interaction issues, and integration bugs across distributed systems.

Requirements

• 2-4 years of blockchain development experience with smart contracts, dApps, or on-chain logic.
• Experience implementing and testing smart contracts in production or near-production environments.
• Solid understanding of blockchain fundamentals (transactions, wallets, gas models, on-chain state).
• Proficiency in at least one backend programming language and API development.
• Experience with Docker and microservices-based applications.
• Must be based in Europe.

Nice to have

• Experience building backend services with Node.js, TypeScript, or Python.
• Hands-on experience using AI-assisted development tools such as Cursor or Claude Code.

Culture & Benefits

• 30 paid days off per year plus 5 paid sick days.
• Medical leave up to 60 days and 6 paid days off for major family events.
• Partially covered health insurance and a wellness bonus for gym memberships and sports nutrition.
• Professional growth support including English lessons, online training, and conference attendance.
• Remote-first culture with flexibility to work from anywhere within the allowed region.

Hiring process

• CV submission in English.
• Introductory call with a Recruiter.
• Technical interview.
• Job offer.