Senior Blockchain Engineer
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Before you apply
LocationTurkey
Work moderemote · Türkiye
Typefull-time
SenioritySenior
DepartmentEngineering, Product Engineering
Company size51–200 people
PostedSep 14, 2026 · 1mo ago
Verified live3d ago
At a glanceSummarised by Seekless from the posting.
Strong software engineering experience building and operating critical production systems, ideally in financial services, digital assets, brokerage, or exchange environments
Hands-on experience with RPC integrations, node operations, indexers, chain listeners, wallets, custody systems, and transaction signing
Experience designing, operating, or migrating on-premises custody infrastructure using HSMs
Strong knowledge of key lifecycle management, cryptographic signing, access controls, backup strategies, and disaster recovery
Production experience across both EVM-compatible and non-EVM networks, ideally including Solana
Experience developing and operating smart contracts; strong Solidity knowledge is expected, while Rust or Solana development experience is valuable
Experience integrating DEXs, DeFi protocols, or other on-chain financial workflows
Understanding of node synchronization, RPC reliability, transaction models, finality, reorg handling, backfills, fees, and network-specific failure scenarios
Knowledge of distributed systems, asynchronous processing, idempotency, data consistency, and observability
Ability to independently own complex, security-sensitive projects from design through production
Skills
Solidity
Rust
EVM
Solana
HSM
RPC
smart contracts
DEX
DeFi
About the company
At Midas, we are working on real-life engineering challenges to transform the world of finance.
We’ve transformed investing in Turkey by delivering a seamless experience for everyday investors.
Today, 4.5 million users invest with Midas. Backed by an $80M Series B, the largest fintech investment ever in Turkey, we are scaling faster than ever.
What You’ll Do
•
Design and operate secure blockchain systems that handle customer assets
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Own on-premises custody architecture, including HSM-backed key management, transaction signing, access controls, redundancy, backups, and disaster recovery
•
Lead custody integrations and migrations while maintaining security and transaction continuity
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Develop, deploy, and maintain production-grade smart contracts and DEX integrations
•
Build multi-chain transaction infrastructure across EVM-compatible networks, Solana, and other non-EVM ecosystems
•
Build and operate RPC integrations, blockchain nodes, indexers, reorg-aware chain listeners, and on-chain data pipelines
•
Own the transaction lifecycle from policy checks and signing through confirmation, reconciliation, and recovery
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Establish strong practices for observability, incident response, operational security, and failure recovery
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Work closely with product, security, and engineering teams to deliver reliable financial infrastructure
What You’ll Bring
•
Strong software engineering experience building and operating critical production systems, ideally in financial services, digital assets, brokerage, or exchange environments
•
Hands-on experience with RPC integrations, node operations, indexers, chain listeners, wallets, custody systems, and transaction signing
•
Experience designing, operating, or migrating on-premises custody infrastructure using HSMs
•
Strong knowledge of key lifecycle management, cryptographic signing, access controls, backup strategies, and disaster recovery
•
Production experience across both EVM-compatible and non-EVM networks, ideally including Solana
•
Experience developing and operating smart contracts; strong Solidity knowledge is expected, while Rust or Solana development experience is valuable
•
Experience integrating DEXs, DeFi protocols, or other on-chain financial workflows
•
Understanding of node synchronization, RPC reliability, transaction models, finality, reorg handling, backfills, fees, and network-specific failure scenarios
•
Knowledge of distributed systems, asynchronous processing, idempotency, data consistency, and observability
•
Ability to independently own complex, security-sensitive projects from design through production