Chief Technology Officer; CTO – Transactional Systems

We are publishing on behalf of the Client the following position:

• Design and launch transaction infrastructure (payments, bookings, statuses)
• Build event-driven architecture
• Implement idempotent operations (no double charges, no inconsistent states)
• Integrate payment providers (webhooks, retries, reconciliation)
• Build full auditability and traceability of all operations
• Control security: access rights, roles, secrets
• Organise production support: SLA, incidents, post‑mortems
• Architectural governance of the development team (ownership of outcomes, not coding personally)

• Transactions & Money:
  • Proven real-world experience with:
  • payments
  • webhooks
  • idempotency
  • reconciliation of payments, statuses, and balances
  • Clear understanding that a successful HTTP response does not equal a successful operation
• Architecture:
  • Design and maintenance of:
  • state machines
  • event-driven processes
  • Ability to clearly explain:
  • system states
  • recovery after failures
  • handling of repeated or delayed events
• Security & Control:
  • Hands‑on implementation of:
  • RBAC (roles & permissions)
  • audit logs (who, when, what changed)
  • secrets management
  • Experience handling legally sensitive data
• Production & Accountability:
  • Experience running production systems where:
  • SLAs exist
  • incidents happen
  • post‑mortems are mandatory
  • Clear ownership mindset: system failure is a responsibility, not an excuse

• Fin Tech, escrow, booking, wallet systems
• Regulated or quasi-banking environments
• Scaling transactional systems
• Participation in incidents involving real financial loss

• Experience limited to marketplaces, landing pages, CRM, admin panels
• Primary focus on UI/UX with backend as secondary
• No experience with real money or production incidents
• Responsibility limited to code, not outcomes

• High level of autonomy and responsibility
• Direct impact on core product architecture
• Environment where quality matters more than speed
• Project requires 100% involvement and full professional commitment

• English – fluent
• Other languages are a strong asset

This role is published on behalf of a client. Kindly submit your CV in English.