Senior Go Developer (Blockchain & Ledger)

EMCD is a leading technology company in the crypto industry, best known as the largest mining pool in Eastern Europe. We are expanding globally and building a comprehensive ecosystem of crypto services, including payment infrastructure, custody, mining solutions and enterprise-grade tools for businesses and institutions.

We are looking for an experienced Senior Go Developer to own the blockchain rails that move user funds across our ecosystem. This is a hands-on engineering role at the core of every deposit and withdrawal: connecting new networks, keeping the ledger accurate to the last unit, and resolving incidents before they turn into losses. It suits someone who enjoys untangling complex systems and treats reliability with real money as a craft.

Key Responsibilities

• Develop and maintain blockchain rail services: deposits, withdrawals, address management and node interaction.
• Integrate new networks and coins end to end, from analysis to production, covering nodes, address derivation, precision, fees and confirmations.
• Own the ledger layer: entries, balances, holds, and reconciliation between on-chain data and internal accounting.
• Take full ownership of the deposit and withdrawal rails, including incidents such as uncredited deposits, stuck or duplicate withdrawals and refunds: investigate them using production and on-chain data, then fix the root causes.
• Contribute to design sessions, write HLDs and ADRs, and break work down into clear tasks.
• Review code, mentor teammates and take part in the team's on-call rotation.

Requirements

• 5+ years of commercial Go development in production.
• Hands-on experience with blockchains, covering both the UTXO model (BTC and its forks) and the account model (EVM, TRON): node RPC, confirmations, reorgs, fees and mempool.
• Solid understanding of keys and addresses: HD derivation (BIP32/44), address formats and transaction signing.
• Experience with ledger and double-entry accounting: entries, holds (authorize capture/void), balance invariants and reconciliation.
• Strong grasp of reliability when handling money: idempotency, double-spend protection, the outbox pattern, at-least-once delivery with deduplication, and eventual consistency.
• PostgreSQL expertise: transactions, locking and isolation levels.
• Distributed systems experience with gRPC and RabbitMQ or Kafka.
• Working knowledge of Kubernetes and the monitoring stack (Prometheus, Grafana).
• Practical use of AI tools such as Claude Code or Cursor to speed up onboarding and development.
• Ability to write clear HLDs and ADRs and well-structured Jira tasks rather than one-liners.
• Proactive communication in cross-team threads and calls, with clear ownership of your scope.
• Working English for documentation and written communication.

What We Offer

• Remote-first company: work from anywhere in the world.
• Fully flexible working hours.
• Extended time off: 20 paid vacation days plus 12 bonus days per year.
• 100% paid sick leave.
• Paid English lessons (iTalki).
• Professional growth support: courses, certifications and training programs.
• Real impact and ownership in fintech and crypto projects.
• Corporate benefits: EMCD product discounts and mining infrastructure access.
• Salary in USDT.
• Employment via Service Agreement.

Apply today and help us build the future of crypto!