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Leonard Ikediuba

@leonardikediuba

Security Team Lead and application security engineer securing fintech platforms through AppSec and DevSecOps.

Nigeria
Message

What I'm looking for

I’m looking to lead AppSec and DevSecOps across fintech products—driving threat modeling, secure design reviews, vulnerability triage in CI/CD, and compliance (SOC 2/PCI-DSS) while partnering closely with engineers to ship safely.

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

AL
Current

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.

SC

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.

SU

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

SE

St' Paul’s Grammar School, Ebu

SSCE

2009 -

Earned the SSCE at St' Paul’s Grammar School, Ebu in 2009.

AltSchool Africa logoAA

AltSchool Africa

Diploma in Cyber Security Engineering, Cyber Security Engineering

Completed a diploma program in Cyber Security Engineering through AltSchool Africa (online).

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