Google DevFest Pasadena 2025
Hands-on developer event with workshops on Google Cloud, Gemini AI, and AI-assisted development tools.
Open to work
Reuben Olelewe
(he/him) · Cerritos, California
Cybersecurity Student | Previous Cybersecurity Intern @ Tevora | Seeking New Grad Roles & Internships
Computer Information Systems @ Cal Poly Pomona (Class of 2027) — protecting systems through GRC, security operations, and cloud security.
reuben@portfolio: ~
$ ▌
// about
Security is the difference between thinking you're secure and knowing it.
I'm a cybersecurity student and former intern at Tevora on the PCI Payments team, building real-world skills in security compliance, risk assessment and vulnerability management. I'm a Computer Information Systems major at Cal Poly Pomona (GPA 3.7, graduating May 2027), pursuing CompTIA Security+ with hands-on practice through TryHackMe.
I've deployed cloud infrastructure on AWS, scripted automation with Python, and completed the Deloitte Cyber Job Simulation on Forage. I'm passionate about protecting systems from evolving threats — whether through penetration testing, security operations, or GRC.
- 3+
- Cybersecurity internships
- 2,000+
- LinkedIn followers
- 500+
- Connections
- 3.7
- GPA
// experience
Where I've worked
Cyber Security Consultant (Intern) @ Tevora
May 2026 – Aug 2026Irvine, CA · Hybrid
- PCI DSS compliance assessments and risk evaluations on the Payments Cybersecurity team.
- Performed vulnerability assessments and documented security findings to PCI-DSS standards.
- Collaborated with consultants on GRC engagements and client deliverables.
Cyber Security Researcher @ Cal Poly Pomona
Apr 2025 – Sep 2025Pomona, CA
- Shadowed the Head of Cybersecurity Operations across day-to-day security work.
- Analyzed emerging threats and attack vectors affecting campus systems.
- Ran vulnerability assessments with Wireshark and Nessus.
- Documented threat-intel briefings and incident-response debriefs.
Cybersecurity & IT Intern (Step Into Tech) @ UNITE-LA
Jun 2025 – Jan 2026Remote
- 14-week workforce readiness program connecting underrepresented students to tech careers.
- CompTIA ITF+ / CCST preparation and hands-on labs.
- Cybersecurity fundamentals, cloud computing and IT support tracks.
- Career coaching, resume review and mock interviews.
PC Sales Representative @ 2020 Companies
Feb 2026 – May 2026Costa Mesa, CA
- $48K in HP PC sales in the first month.
- Hit 106% of quota.
- Managed pipeline and customer records in Salesforce.
UGC Creator @ Knowunity
Feb 2026 – May 2026Remote
- Produced short-form video content for a student study platform on TikTok and Instagram.
// community
Tech events & community
Conferences, site visits, mentorship and student organizations that keep me close to the industry.
Google for Developers Network — Greater LA
Developer conferences and technical workshops hosted by Google.
TikTok HQ Visit
With the LA-Tech.org Emerging Talent Academy; heard from tech professionals on career paths into tech.
CBS Broadcast Center Visit
Behind-the-scenes look at premier sports broadcasting operations.
CA-NV AWWA Water Cybersecurity Conference
Attendee — critical-infrastructure cybersecurity for water utilities.
NSBE Professionals — Mentee
Structured mentorship, chapter meetings, conferences and STEM career-readiness programming.
SWIFT — Cal Poly Pomona Cybersecurity Club
Students With an Interest in the Future of Technology: threat intel, security operations, risk management.
STEM Advantage Scholar
Competitive program with paid internship placement and mentorship.
Evolve Fellows Program
Selected fellow in the inaugural cohort.
// projects
Selected work
01
Secure, Scalable Cloud Infrastructure on AWS
Self-hosted private cloud storage
Two EC2 instances — a Windows Server 2019 backup node and an Ubuntu 22.04 host running Dockerized Nextcloud — locked down with IAM roles, IP whitelisting, UFW, Fail2Ban, ClamAV, Certbot (Let's Encrypt) certificates and usage alarms.
- AWS EC2
- Lightsail
- Docker
- Nextcloud
- IAM
- Linux
- Security Hardening
What I did
- Deployed Nextcloud on Ubuntu 22.04 with Apache, PHP and MariaDB.
- End-to-end HTTPS with Certbot / Let's Encrypt on a free subdomain.
- Hardened hosts with UFW, Fail2Ban brute-force protection and ClamAV scanning.
- Security groups plus an IP allow-list so only whitelisted teammates could connect.
- IAM groups for Admins, Developers and Testers on tiered least-privilege policies.
- Python Lambda on a 5-minute CloudWatch Events schedule, verified through logs.
- CloudWatch CPU-utilization alarm to flag resource abuse on the Windows node.
02
PCI DSS v4.0.1 Requirement 3.5 — Encryption vs Hashing Training Deck
Tevora — Payments Cybersecurity team
Training material on rendering stored PAN unreadable: keyed hashing (HMAC / CMAC / GMAC), truncation, tokenization and strong encryption, plus the March 2025 mandates — 3.5.1.1 keyed-hash and the 3.5.1.2 / 3.5.1.3 disk-encryption restrictions.
- PCI DSS
- GRC
- Cryptography
- Compliance
Assess
Roadmap
Report
What I did
- Broke down the four approved methods for rendering PAN unreadable at rest.
- Contrasted one-way keyed hashing with reversible strong encryption and key management duties.
- Mapped the new March 2025 requirements to practical control changes for assessed entities.
03
Cybersecurity Presentations Portfolio
rolelewe.online
Two accessible presentations on cloud environments and on encryption & hashing — including a live technical talk on hashing and encryption delivered to a CEO and an audience of 500+.
- Public Speaking
- Cloud
- Encryption
What I did
- Translated dense cryptography concepts for a mixed technical and executive audience.
- Published accessible decks covering secure cloud environment design.
- Delivered live to 500+ attendees including company leadership.
// skills
Skills & tools
Security & Compliance
- PCI DSS
- ISO 27001
- GRC
- Vulnerability Assessment
- Threat Analysis
- SOC Monitoring
- Access Control
Tools & Cloud
- Wireshark
- Splunk
- Nessus
- Active Directory
- AWS (EC2, IAM, Lightsail)
- GCP
- Docker
- VMware
Systems & Networking
- Windows
- Linux
- LAN/WAN
- VPN
- VLAN
- OS Patching
Programming
- Python
- Java
- JavaScript
- SQL
Learning platforms
- TryHackMe
- Forage
// certifications
Certifications & training
CompTIA Security+
In progress
Microsoft 365 Essentials
Completed
Deloitte Cyber Job Simulation (Forage)
Completed
CompTIA ITF+ / CCST prep (UNITE-LA)
Prep completed
// contact
Let's Connect
I'm actively seeking cybersecurity internships and new grad roles.
reubenolelewe101@gmail.comlinkedin.com/in/reubenolelewe
Cerritos, CA — open to on-site, hybrid and remote