Leonard Ikediuba
@leonardikediuba
Security Team Lead and application security engineer securing fintech platforms through AppSec and DevSecOps.
What I'm looking for
I’m a Strategic Application Security Leader & Engineer with over 4 years of experience securing high-stakes Digital Banking Systems and Fintech infrastructure. I currently serve as Security Team Lead for AltBank, where I drive application security (AppSec), threat modeling, and secure digital transformation.
I orchestrate end-to-end Product Security for the AltBank digital platform—performing hands-on secure design and architecture reviews for APIs, mobile applications (iOS/Android), and backend microservices. I execute deep-dive web and mobile security assessments (OWASP Top 10, MASVS), then provide developers with actionable remediation code snippets. I also embed security into CI/CD by managing and tuning SAST/DAST tooling and automating vulnerability triage within development sprints.
What sets me apart is how I bridge deep technical remediation with executive strategy: I produce management-level security and risk reports for leadership review while ensuring robust defense-in-depth and compliance with SOC 2 and PCI-DSS. I lead remediation through JIRA, resolving high-risk findings within established SLAs without impacting release velocity, and I mentor junior security analysts while coordinating cross-team security delivery. One highlight is institutionalizing threat modeling across product teams, reducing security review turnaround by 30% while increasing the detection of design-level flaws before code was committed.
Before AltBank, I served as an Application Security Engineer at Sterling Holding Co., executing manual and automated assessments on high-traffic fintech web/mobile applications and RESTful APIs. Earlier, at SunFi, I supported first-line cybersecurity and IT for 50+ employees and helped prepare for SOC 2 and PCI-DSS audits. I’m hands-on, proactive, and dedicated to building a culture of secure development and proactive threat hunting—supported by strong security tooling, CI/CD integration, and DevSecOps collaboration.
Experience
Work history, roles, and key accomplishments
Security Team Lead
AltBank
Jun 2025 - Present (1 year)
Led application security for the AltBank digital platform, driving threat modeling, secure design reviews, and web/mobile vulnerability assessments across APIs and microservices. Embedded SAST/DAST into CI/CD and delivered executive security reporting, reducing security review turnaround by 30% and supporting SOC 2/PCI-DSS compliance while maintaining 99.9% system uptime.
Application Security Engineer
Sterling Holding Co.
Aug 2024 - Jun 2025 (10 months)
Performed end-to-end security assessments on fintech web/mobile applications and RESTful APIs, including threat modeling and secure design reviews during pre-development. Tuned Checkmarx, Veracode, and Burp Suite to improve signal-to-noise and advanced DevSecOps automation for PCI-DSS and SOC 2 alignment, reducing high-risk findings across multiple banking applications.
IT Support & CyberSec Eng
Sunfi
May 2023 - Jan 2025 (1 year 8 months)
Provided first-line cybersecurity and IT support for 50+ employees, resolving access control, device, and network incidents. Supported SOC 2 and PCI-DSS audit preparations through evidence gathering and security control implementation, improving device setup turnaround by 25% and contributing to an audit with zero major findings.
Education
Degrees, certifications, and relevant coursework
St' Paul’s Grammar School, Ebu
SSCE
2009 -
Earned the SSCE at St' Paul’s Grammar School, Ebu in 2009.
AltSchool Africa
Diploma in Cyber Security Engineering, Cyber Security Engineering
Completed a diploma program in Cyber Security Engineering through AltSchool Africa (online).
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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