Available for full-time roles

Hi, I'm Rivaldo Marere

Software Developer & Cybersecurity Professional

Software developer and cybersecurity professional based in North Bergen, NJ, with an M.S. in Cybersecurity from Yeshiva University (2026) and a B.Tech in Computer Science. I build and secure web applications, with a focus on application security, secure development, and system hardening.

Authorized to work in the US

Application Security Secure Development System Hardening Angular & TypeScript Python & Django Linux
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~/rivaldo · zsh
Rivaldo Marere

Rivaldo Marere

Software Dev · Security

$ whoami

software developer && security professional

$ cat location.txt

North Bergen, NJ, USA

$ ls certifications/

isc2-cc  redhat-rh124  ms-ai-skills-fest-2026

$

01Background

Experience & Education

Experience

Aug 2026 – Present

Founder & Software Developer Current

Expocreatives LLC, Sheridan, WY (remote)

Building VigilIQ, a cybersecurity awareness training platform, and EndpointGuard, an API authorization security testing tool.

Aug 2025 – May 2026

Teaching Assistant, Cybersecurity

Yeshiva University, Katz School of Science and Health, New York, NY

Supported students through cybersecurity coursework and labs. Built a peer-evaluation analytics dashboard for the lecturer using HTML, CSS, JavaScript, and Chart.js.

Feb 2024 – Aug 2025

Software Developer, Application Security

BGUN Of Africa, Harare, Zimbabwe (remote)

Built and shipped production web applications, with authentication, authorization, and secure coding practices in every feature. Administered the company's content management system.

Mar 2023 – Aug 2023

Software Developer

Brainstake, Harare, Zimbabwe

Engineered and enhanced a full-stack eLearning platform for a diverse user base, building responsive interfaces and integrating APIs.

Education

May 2026

M.S. in Cybersecurity Completed

Yeshiva University, Katz School of Science and Health, New York, NY
May 2023

B.Tech in Computer Science Completed

Harare Institute of Technology, Harare, Zimbabwe
02Credentials

Certifications

ISC2 Certified in Cybersecurity (CC)

International Information System Security Certification Consortium.

Red Hat System Administration I (RH124)

Linux system administration fundamentals and configuration.

Microsoft AI Skills Fest 2026 Badge

Microsoft.

03Expertise

My Skills

Languages

  • TypeScript
  • JavaScript
  • Python
  • SQL
  • HTML & CSS

Frameworks & Libraries

  • Angular
  • Django
  • Bootstrap
  • Chart.js

Security

  • Application Security
  • Secure Development
  • Threat & Risk Assessment
  • Vulnerability Assessment
  • Network Security
  • Digital Forensics
  • Audit & Compliance
  • Cryptography

Cloud & Systems

  • Linux / Ubuntu
  • System Hardening
  • Windows
  • Microsoft Azure
  • Web Servers (Nginx)

Tools

  • Git & GitHub
  • Wireshark
  • UFW & Fail2ban
04Portfolio

Works & Projects

Security assessments, web applications, and hardening work.

  • All
  • Web Apps
  • Websites
  • Cybersecurity
VigilIQ admin analytics showing topic mastery, learners tracked, and remedial assignments per team member
Security Training Platform

VigilIQ

Cybersecurity awareness training platform with course delivery, progress tracking, and certification features.
EndpointGuard endpoints view showing access rules, authentication and authorization results, and risk levels per API endpoint
Security Tool

EndpointGuard

API authorization security testing tool with automated vulnerability detection and CI/CD pipeline integration.
PlayStation Store interface, part of the ecosystem assessed in the capstone
Cybersecurity · Capstone

PlayStation Ecosystem Security Assessment

Graduate capstone (Aug to Dec 2025): threat and risk assessment of the PlayStation ecosystem with a defense-in-depth strategy.
Web Application

Peer-Evaluation Analytics Dashboard

Built for a Yeshiva University lecturer: a JavaScript/Chart.js front end processing and visualizing data for 50 students, with a leaderboard, charts, and data-quality checks.

Cloud Security

Microsoft Azure Cloud Security and AI Labs

Hands-on labs in Azure cloud security and AI.

Ubuntu server logs showing UFW blocks and Fail2ban activity
Cybersecurity

Ubuntu Linux Server Hardening

Firewall configuration, SSH hardening, and intrusion detection.
Wireshark packet capture analysis
Cybersecurity

Network Traffic Analysis with Wireshark

Packet capture and protocol analysis with Wireshark.
BGUN crowdfunding web application
Web Application

BGUN Crowdfunding Web App

Crowdfunding web application for BGUN Of Africa.
Membership subscription web application
Web Application

Subscription Web App

Membership subscription plans and sign-up.
BGUN Of Africa website
Website

BGUN Website

Public website for BGUN Of Africa.
Earlier version of this portfolio site
Website

Personal Portfolio

Responsive portfolio site built with HTML, CSS, and JavaScript.
05What I Do

Services

/01

Secure Web Development

Web applications built with Angular, Django, HTML, CSS, and JavaScript, following security-first practices: input validation, encryption, and secure authentication.

/02

Application Security

Security assessments, vulnerability scanning, access control, and endpoint hardening, backed by ISC2 CC certification and graduate training in cybersecurity.

/03

Linux Server Setup & Hardening

Ubuntu server deployment and hardening: firewall configuration, SSH hardening, intrusion detection, and service monitoring. Red Hat RH124 trained.

/04

IT Support & Systems Administration

Technical support and day-to-day administration for Windows and Linux systems, web servers, and content management systems, with secure configuration and access control built in.

06Contact

Get in Touch

Hiring, or have a security question? I would like to hear from you.

Location

North Bergen, NJ, USA