Chinonso Ezeh
chinonso.ezeh@example.xxx · +234 XXX XXX XXXX · Lagos, Nigeria · linkedin.com/in/chinonsoezeh
Résumé
Technology executive with 15 years in payments and financial technology, including 8 years leading engineering organisations and 4 years as CTO of a CBN licensed payments company. Has built payment platforms from early stage to over 40 million transactions a month, with 99.99% uptime, PCI DSS Level 1 certification and clean CBN examinations. Combines deep payment architecture expertise with board level reporting and engineering culture building.
Compétences
technology vision, architecture roadmap, build versus buy, card processing, switching, NIBSS, NQR, POS and PTSP, agency banking, core banking integration, API design, microservices, mobile, DevOps, data platforms Reliability and security: SRE, secure SDLC, vulnerability management, PCI DSS, CBN Risk Based Cybersecurity Framework, NDPA 2023 Leadership: engineering culture, hiring, succession, board reporting, vendor management
Expérience
Chief Technology Officer, SwiftPay Technologies (CBN licensed PSSP and PTSP), Lagos Feb 2022 to Present
- Mandate: rebuild a fragile monolith into a scalable, compliant platform ahead of a Series B
- Scope: 140 engineers; $6 million technology budget; reports to the CEO; presents quarterly
- Led migration from a monolith to microservices on AWS with zero customer facing downtime
- Own backend, mobile, DevOps, infrastructure, QA and data functions through 5 engineering managers
- Partner with the CISO on secure SDLC, penetration testing and vulnerability remediation
- Manage relationships with NIBSS, Interswitch, processors and core banking vendors
- Report uptime, incidents, technology risk and delivery KPIs to the Board quarterly
- Introduced engineering career ladders and a succession plan for every engineering manager
Head of Engineering, Payments Infrastructure, Paystack, Lagos Jun 2018 to Jan 2022
- Mandate: scale core payment rails during rapid merchant growth
- Led 4 squads building card, transfer and settlement services
- Raised payment success rates by 6 percentage points through smarter routing
Engineering Manager, then Senior Software Engineer, Interswitch Group, Lagos 2013 to 2018
- Built switching and settlement services processing millions of daily transactions
Formation
- 2016, M.Sc. Distributed Systems, University of Edinburgh (2016)
Career highlights
holding 99.99% uptime, Built the engineering organisation from 12 to 140 people across 11 squads and 5 engineering managers, Achieved PCI DSS Level 1 certification and passed 3 CBN IT examinations with no high risk findings, Cut cloud infrastructure cost by 38% ($1.4 million a year) through architecture and FinOps changes, Delivered NQR, NIBSS NIP and 6 core banking integrations, enabling 3 new revenue lines, Reduced production incident recovery time from 4 hours to 25 minutes with SRE practices
Certifications & memberships
M.Sc., CISM, AWS Certified Solutions Architect Professional; CISM; PCI Professional (PCIP)