Discussing Web Architecture, Security, and Embedded Systems.

FULL STACK ENGINEER
CYBERSECURITY ENGINEER
EMBEDDED SYSTEMS ENGINEER

Aaron

Building secure web applications, scalable backend systems, and reliable embedded solutions.

Who I Am
"I design and develop scalable software systems, strengthen them through cybersecurity engineering, and integrate embedded solutions where hardware meets the cloud."

I analyze systems from both builder and attacker perspectives. With a strong background in backend engineering and deployment, I specialize in web application security and exploitation, identifying vulnerabilities across the full stack. I apply offensive web security techniques to strengthen APIs, authentication systems, and overall application architecture.

Security-aware development is integrated into every system I build.

Building Secure Software Free From
system lag
Services

Engineering & Security Services

Full-stack development, IoT integration, and offensive security. Delivering robust, production-ready systems.

Ethical Security Audit
Web App Security
Secure API Architecture
IoT Security Analysis
Vulnerability Mitigation
Advanced Database Design
Full Stack Web Development

Database design, responsive frontends, and scalable backends with modern technologies. Security-aware engineering at every layer.

Cybersecurity & Web Exploitation

Offensive security: penetration testing, API hardening, and vulnerability research to secure systems before production.

Embedded Systems & IoT

Hardware-to-cloud integration (ESP32/RFID) featuring firmware auditing, MQTT security, and robust sensor logic.

Architecture & Production Execution

I design, secure, and deploy production systems — from backend architecture to hardened VPS environments and controlled CI/CD pipelines.

Security Audits
Vulnerability Testing
Secure Architecture
Offensive Research
API Security
IoT Security
Secure Deployment
Security Audits
Vulnerability Testing
Secure Architecture
Offensive Research
API Security
IoT Security
Secure Deployment
Not Yet Convinced
Engineering Focus

Deep Stack Technical Expertise

Precision-engineered systems architecture and offensive security knowledge used to build robust, resilient, and production-ready solutions.

Workflow

Engineering Workflow

Building resilient systems from system design to cloud hosting.'

Architecture & Security Mapping
01

Architecture & Security Mapping

Analyzing system requirements to design comprehensive technical architectures. This involves defining database schemas, API structures, and hardware integration protocols while establishing a baseline security posture to prevent vulnerabilities at the design phase.

Secure Core Logic Development
02

Secure Core Logic Development

Engineering high-performance backend systems using modern frameworks like NestJS or Spring Boot. I focus on implementing fine-grained authorization, encrypted data communication, and optimized query logic to handle complex business processes securely.

Full-Stack UI/UX Engineering
03

Full-Stack UI/UX Engineering

Developing intuitive and responsive front-end applications that transform backend data into interactive user experiences. I prioritize state management, accessibility, and real-time synchronization to ensure the system is as functional as it is visually compelling.

Production Hardening & Deployment
04

Production Hardening & Deployment

Migrating developed systems into hardened production environments. This includes configuring cloud infrastructure, setting up automated monitoring, and applying security patches to ensure high availability and resistance against external threats.

From system architecture to cloud execution.
Connect
Projects

My Latest Projects

A showcase of production-ready systems, hardened backends, and technical research projects built with security-first architecture.

Kigali Engineers College Website2025
BrainlyCode Platform2026
RCA Library Backend2026
Full Stack Education Portal

Full Stack Education Portal

Architected and deployed a complete system including an admin panel, student registration, and institutional management. Built with NestJS, React, and PostgreSQL.

View Project
KECBCodeRCALMS
KECBCodeRCALMS
KECBCodeRCALMS
KECBCodeRCALMS
95%Client Satisfaction
1+Years Exp
Creating high-performance applications ready for production deployment.
Achievements

"I've deployed 3+ production systems mastered over 8 backend technologies and integrated hardware with cloud. Systems built to last."

3+Production Systems
8+Backend Technologies
100%System Availability
24/7Secure Monitoring
Engineering away
system lag
Testimonials

Validated Professionalism

Technical feedback from engineers and project leads who have collaborated on production systems and hardware-to-cloud architectures.

Jean Damascene
Lead Engineer

Jean Damascene

Aaron's expertise in backend architecture is a game-changer. He transformed our complex systems into highly reliable, production-ready environments with security at the core.

Technical Consultant
Sarah M.
Security Specialist

Sarah M.

Working with Aaron was exceptional. His ability to bridge hardware-level logic with cloud security is rare. He refined our API hardening process and established robust defense paradigms.

Secure Systems Architect
David K.
Technical Lead

David K.

Engineering systems from hardware to cloud is exactly what Aaron excels at. He architected our platform's backend with precision, ensuring high availability and seamless data flows.

Project Manager
Jean Damascene

Aaron's expertise in backend architecture is a game-changer. He transformed our complex systems into highly reliable, production-ready environments with security at the core.

Technical Consultant
Sarah M.

Working with Aaron was exceptional. His ability to bridge hardware-level logic with cloud security is rare. He refined our API hardening process and established robust defense paradigms.

Secure Systems Architect
David K.

Engineering systems from hardware to cloud is exactly what Aaron excels at. He architected our platform's backend with precision, ensuring high availability and seamless data flows.

Project Manager
Jean Damascene

Aaron's expertise in backend architecture is a game-changer. He transformed our complex systems into highly reliable, production-ready environments with security at the core.

Technical Consultant
Sarah M.

Working with Aaron was exceptional. His ability to bridge hardware-level logic with cloud security is rare. He refined our API hardening process and established robust defense paradigms.

Secure Systems Architect
David K.

Engineering systems from hardware to cloud is exactly what Aaron excels at. He architected our platform's backend with precision, ensuring high availability and seamless data flows.

Project Manager
Jean Damascene

Aaron's expertise in backend architecture is a game-changer. He transformed our complex systems into highly reliable, production-ready environments with security at the core.

Technical Consultant
Sarah M.

Working with Aaron was exceptional. His ability to bridge hardware-level logic with cloud security is rare. He refined our API hardening process and established robust defense paradigms.

Secure Systems Architect
David K.

Engineering systems from hardware to cloud is exactly what Aaron excels at. He architected our platform's backend with precision, ensuring high availability and seamless data flows.

Project Manager
Partner with a professional engineer to deliver production-ready applications with reliability and technical rigor.
FAQS

Your Questions
Answered

Find answers to technical questions about system architecture, hardware-to-cloud integration, and deployment.

Do you offer security audits?

Yes, I perform ethical security research and controlled testing to identify vulnerabilities in web applications, APIs, and embedded systems.

How do you secure your backend systems?
What is your background in offensive security?
Can you secure IoT devices?

Feel free to mail me for any enquiries - aarontwarimitswe@gmail.com

Contact

Let's Build Something Secure

Ready to harden your systems or build high-performance backend architecture? Connect with me for a technical consultation.

Email Support

Have questions? I'm here for you

aarontwarimitswe@gmail.com

Direct Call

Talk to me—fast support, no hassle.

+250 796 563 809

Consultation

Free to book a call if that feels more convenient—I'm happy to walk you through everything.

Book a call

Connect with me for a technical consultation