Application Security Engineer

Prosper Mapepa

Application Security Engineer coming from 6+ years of software engineering. I focus on DevSecOps and cloud security - SAST/DAST, CI/CD security, APIs, SBOMs, and threat modeling - and I care about turning that work into less risk, lower cost, and cleaner operations.

Mapepa Innovation LLC
Mount Pleasant, MIOpen to relocateMBA Cybersecurity · Dec 2026
My company

Projects

Security engineering work and shipped products.

Security Engineering

Pipelines, pentesting, cloud hardening, and supply chain.

SAST/DAST CI/CD Security Pipeline

Built a secure CI/CD pipeline with SonarQube, OWASP ZAP, and Syft/Grype. Critical vulnerabilities across builds dropped about 53%, and insecure deployments get blocked automatically.

SonarQubeOWASP ZAPSyftGrypeGitHub Actions

API Security Hardening + Pentesting

Hardened an API with JWT, RBAC, rate limiting, and audit logging - unauthorized access attempts fell about 33% in testing. Ran pentests with Burp Suite and ZAP, then closed every high-severity finding.

JWTRBACBurp SuiteOWASP ZAPAPI Security

Supply Chain Security (SBOM + Vulnerability Management)

Set up SBOM workflows with Syft and Grype - dependency vulnerabilities dropped about 35%. Risky packages get caught in CI before they reach production.

SyftGrypeSBOMCI/CDSCA

Shipped Products

Apps and platforms I built end-to-end - mobile, web, and hybrid.

TailorSendWeb

TailorSend

Job application platform that researches each employer, suggests honest gap fixes from your real experience, tailors your resume and cover letter, then auto-fills Greenhouse, Lever, and other ATS forms for your review - you click submit last.

2025 - PresentMapepa Innovation LLC
Next.jsTypeScriptTailwind CSSNode.jsPostgreSQLStripeREST APIs
Live
Verified FlowWeb

Verified Flow

Public water data trust layer - independent lead results are cryptographically sealed at submit time, published automatically, and alerted at 5 ppb (community) and 10 ppb (legal) so dangerous numbers cannot be quietly edited or delayed.

2025 - PresentMapepa Innovation LLC
Next.jsTypeScriptTailwind CSSNode.jsPostgreSQLCryptographyMaps APIs
Live
CMU TalentHubMobile

CMU TalentHub

Launched as CMU TalentHub on iOS and Android - now rebranded to VeriTalent. Students showcase portfolios and verified skills, discover internships and gigs, and connect with businesses and faculty. Built and pitched at CMU's New Venture Challenge.

2025 - PresentCentral Michigan University
React NativeTypeScriptNode.jsPostgreSQLREST APIs

Leadership & Affiliations

Communities and leadership outside day-to-day engineering.

President

Cybersecurity Club (CMU)

Grew membership by about 30% and ran hands-on labs on AppSec and Capture the Flag.

Researcher

American Nuclear Society (CMU)

Built a Nuclear Reactor Simulator to show why cybersecurity matters in nuclear systems, and wrote a research paper on cybersecurity awareness.

LeaderShape Institute Program

Central Michigan University

Completed an intensive leadership program focused on vision-driven problem-solving and ethical decision-making.

Founder

TalentHub

Pitched at CMU’s 2026 New Venture Challenge in front of entrepreneurs and business leaders - technical build plus customer discovery, communication, and execution.

About

Application Security Engineer transitioning from 6+ years of software engineering. I'm finishing an MBA in Cybersecurity (GPA 3.85), with a focus on DevSecOps and cloud security - SAST/DAST, CI/CD security, API security, SBOM, and threat modeling.

I code in JavaScript and Python. People know me for turning technical work into cost savings, risk reduction, and operational efficiency - including remediation that actually sticks.

Technical Skills

Application Security

OWASP Top 10SASTDASTSCAAPI SecurityThreat Modeling

DevSecOps

CI/CD SecurityGitHub ActionsSBOMSupply Chain SecurityContainer Scanning

Cloud Security

IAMEncryptionLogging/MonitoringCloud-Based InfrastructuresSaaSPaaSIaaS

Secure Engineering

RBACJWT AuthInput Validation

Tools & Languages

Burp SuiteOWASP ZAPSonarQubeSnykTrivyCheckovSyft/GrypeAWSDockerJavaScriptPython

Networking & Systems

HTTPDNSTLSLinuxWindows

Other

Stakeholder ManagementPeople ManagementCommunication

Experience

Six-plus years of software engineering, now focused on application security.

Slate Technolutions Assistant

Central Michigan University · May 2025 - Present · Mount Pleasant, MI

  • Automated admissions application data cleanup with JavaScript, cutting about 35 hours of manual work each week and making the data more accurate.
  • Manage user accounts, roles, and permissions with least privilege plus continuous logging - unauthorized access to student records dropped about 51%.
  • Monitor and validate Slate CRM data imports and integrations so student data stays confidential, intact, and available.
JavaScriptSlate CRMIAMLogging & Monitoring

Application Security Engineer

GrowthSense Ltd · Jan 2024 - Dec 2024 · Remote

  • Led secure coding adoption across a team of 10 developers - recurring vulnerabilities dropped around 45%.
  • Shifted security left with SAST, DAST, SBOM, and SCA from developer IDEs through deployment, cutting related costs by about 37%.
  • Rolled out Chainguard Images for hardened containers, reducing CVEs and tightening the software supply chain by about 64%.
SASTDASTSBOMSCAChainguardCI/CD

Software Engineer III

GrowthSense Ltd · Jan 2021 - Dec 2023 · Remote

  • Built a secure tollgate system with real-time OCR plate scanning and input sanitization, cutting OCR injection risk by about 14%.
  • Implemented RBAC on sensitive apps and secured APIs with JWT access and refresh tokens - unauthorized API calls dropped about 52%.
  • Worked with security teams to remediate vulnerabilities in static and dynamic applications and reduce critical production issues.
OCRRBACJWTAPI Security

Software Engineer II

GrowthSense Ltd · Jan 2020 - Dec 2020 · Remote

  • Designed, built, and shipped a Medical Rota Platform for scheduling, time-off, and staffing - workforce utilization improved about 66%.
  • Optimized APIs to cut response time by about 22%, speeding up internal tools used by teams across locations.
APIsJavaScriptPython

Software Engineer I

GrowthSense Ltd · Jan 2019 - Dec 2019 · Remote

  • Designed and ran CI/CD pipelines for releases, saving about 15 hours a week of manual work and making deployments more consistent.
  • Fixed 17 major bugs over 9 months, which strengthened quality and lowered defects.
  • Shipped features with zero post-release bugs and usage rose over 19%.
CI/CDJavaScript

Software Engineer Intern

Ark Properties Group · Jan 2018 - Dec 2018 · Remote

  • Built small features, APIs, and internal automation tools, plus a dedicated healthcare internship project.
  • Debugged, reviewed code, documented issues, and proposed fixes in standups and code reviews.
  • Learned the internal codebase, researched new tools, and built a stronger engineering foundation.
APIsJavaScript
5th Place · NVC 20267 finalistsPitch deck

New Venture Challenge

Five minutes on stage, five minutes of hard questions. I pitched Talent Hub and placed fifth at CMU's 2026 finals in Grawn Atrium, Mount Pleasant, MI.

CMU TalentHubVeriTalent

VeriTalent

Showcase · Connect · Evolve

Pitched at NVC as Talent Hub. Launched as CMU TalentHub on iOS and Android - now VeriTalent for portfolios, campus jobs, and secure messaging across the CMU community.

Jobs & gigs

Campus opportunities in one feed.

Secure messaging

Students, businesses, and faculty in-app.

Showcase talent

Portfolios, skills, and reviews.

React NativeTypeScriptNode.jsPostgreSQLREST APIs

Onboarding

Welcome & sign-up

Discover

Profiles & search

How I got to 5th place

A semester of building, pitching, revising, and showing up.

01

Found the problem

Students had skills employers couldn't see. I started building around verified talent and campus-specific opportunities.

02

IBIE pipeline

Mentor meetups and NVC workshops - tightened the pitch and stress-tested the model before going live.

03

Advanced to finals

Submitted the application and moved through preliminary judging as one of seven finalist teams.

04

Pitched on stage

Five minutes on Talent Hub at Grawn Atrium, then five minutes of judge questions.

05

Gallery reception

Networked with judges, mentors, and peers while results were finalized.

06

Placed 5th

Finished fifth in a strong cohort - validation that the idea held up against serious competition.

Education

MBA, Cybersecurity

Central Michigan University · Jan 2025 - Dec 2026 · Mount Pleasant, MI

Current GPA 3.85. Focused on DevSecOps and cloud security - how security work turns into lower risk, lower cost, and better operations.

B.Tech (Honors), Information Security & Assurance

Harare Institute of Technology · Aug 2015 - Aug 2019 · Harare, Zimbabwe

Honors degree built around cybersecurity fundamentals - secure system design, threat analysis, and hands-on security engineering.

Contact

Hiring or have a project? I usually reply the same day.

mapep1p@cmich.edu989-332-8050Mount Pleasant, MI · Open to relocate