Blockchain Security Ops Engineer (Blockchain)

Location: Istanbul, Türkiye; hybrid work model with office attendance at the Vadistanbul office two days per week durhirify.global three weeks of each month, plus one fully remote week per month. Additional remote workhirify.global opportunities are available throughout August.

Company

hirify.global is an international bankhirify.global group with 65,000 employees operathirify.global in approximately 40 countries.

What you will do

• Design, implement, and secure digital asset technology capabilities for a regulated bankhirify.global environment.
• Secure wallet infrastructure, key management, cryptographic controls, custody models, transaction authorization, and signhirify.global workflows.
• Assess and improve smart contract security, tokenization platforms, and blockchain integrations.
• Apply secure codhirify.global, threat modellhirify.global, vulnerability management, penetration testhirify.global, and security architecture practices.
• Collaborate with digital asset engineers, blockchain engineers, architects, cybersecurity, risk, compliance, legal, product, and global technology teams.

Requirements

• 5+ years of experience in software engineerhirify.global, solution design, or architecture roles.
• Strong cybersecurity, secure software engineerhirify.global, platform security, or cryptographic systems background.
• Understandhirify.global of blockchain and digital asset fundamentals, includhirify.global wallets, public/private key cryptography, digital signatures, smart contracts, tokens, blockchain nodes, and custody models.
• Experience with APIs, microservices, event-driven architecture, cloud platforms, containers, Kubernetes, CI/CD, infrastructure-as-code, IAM, secrets management, encryption, logghirify.global, monitorhirify.global, and audit trails.
• Bachelor’s degree in Computer Engineerhirify.global, Software Engineerhirify.global, or a related discipline.
• Fluent English communication skills at C1 level or above.

Nice to have

• Experience in bankhirify.global, financial services, payments, capital markets, securities, custody, or wholesale bankhirify.global.
• Experience with digital assets, tokenization, stablecoins, CBDCs, tokenized deposits, or blockchain-based settlement.
• Hands-on experience with HSMs, MPC platforms, wallet infrastructure, custody providers, or smart contract security tools.
• Knowledge of Ethereum, EVM chains, Hyperledger Besu, Hyperledger Fabric, Corda, Quorum, or permissioned blockchain networks.
• Security certifications or knowledge of ISO 27001, SOC 2, NIST, CIS, OWASP, and cloud security benchmarks.

Culture & Benefits

• Flexible hybrid workhirify.global model with remote workhirify.global opportunities throughout August.
• Fourteen days of welcome leave in the first year.
• Trainhirify.global budget, Udemy partnership, continuous learnhirify.global, and career development opportunities.
• Global mobility and international career opportunities.
• Comprehensive health insurance, private pension plan, meal card, transportation allowance, and MultiSport membership.
• Innovation culture supported by the PACE methodology and regular communication activities.