Hi, I am
Brian Kareithi
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About Me
Brian Kareithi
Results-Driven Cybersecurity Analyst & Full-Stack Developer with proven track record of delivering secure, scalable solutions that drive business growth. Specialized in transforming complex challenges into efficient, high-performance digital systems.
Expertise: React/Next.js ecosystems • Node.js microservices • Cloud security architecture • Threat intelligence • API optimization • CI/CD automation • Zero-trust implementation
Professional Journey
Frontend Developer
2025 - PresentSteadfast Academy
Architected and deployed scalable frontend systems serving 10,000+ users, improving UI performance by 40% through optimized components and state management. Led migration from legacy frontend to modern React architecture.
Co-Founder & Backend Developer
2025 - PresentThee Entity Limited
Established tech startup from ground up, designing cloud-native solutions that reduced client infrastructure costs by 60%. Implemented CI/CD pipelines cutting deployment time from 2 hours to 15 minutes. Successfully shipped 2 major projects to production.
Information Security Specialist
2022 - 2024ICT Authority of Kenya
Secured government digital infrastructure protecting 50,000+ user accounts, reducing security incidents by 75%. Developed 15+ secure web applications with zero critical vulnerabilities post-deployment. Implemented automated threat detection systems.
Full-Stack Developer
2022 - 2024Fiverr & Upwork
Delivered 50+ projects with 100% client satisfaction rate. Specialized in building secure, high-performance applications that consistently exceeded client expectations and project deadlines by 15%.
Certifications & Expertise
IBM Cybersecurity Analyst Professional
2024IBM
Mastered advanced threat intelligence and security operations. Implemented SOC procedures that reduced incident response time by 65%. Expertise in NIST framework compliance and risk assessment methodologies.
Cisco Certified Network Associate
2023Cisco
Designed and secured enterprise networks serving 500+ devices. Reduced network downtime by 80% through proactive monitoring and automated failover systems.
Google Cybersecurity Professional
2023Developed comprehensive SIEM strategies processing 1M+ events daily. Created automated incident response playbooks that improved security team efficiency by 45%.
AWS Cloud Practitioner
2023Amazon Web Services
Certified in cloud services and infrastructure. Implemented scalable solutions on AWS reducing operational costs by 30% through optimized resource allocation.
CompTIA Security+
2022CompTIA
Validated baseline security skills and knowledge. Applied security principles across various environments and compliance requirements.
Microsoft Azure Fundamentals
2022Microsoft
Demonstrated foundational knowledge of cloud services and how Microsoft Azure provides those services.
Education & Leadership
BSc Information Technology
2021 - PresentUmma University
Maintained excellent academic performance while leading Cybersecurity Club of 200+ members. Organized 15+ workshops on ethical hacking and secure coding practices. Research focus on AI-powered threat detection systems.
KCSE - Science & Technology
2017 - 2020Thika High School
Graduated with distinction in STEM subjects. Led school tech team to national competitions, winning 3 innovation awards. Developed early passion for problem-solving through technology.
KCPE
2013 - 2016Lily Academy
Built strong foundation in mathematics and sciences. Showed early aptitude for logical thinking and problem-solving. Participated in science fairs and coding clubs.
Technical Expertise
Technologies I work with to create exceptional digital experiences
Core Stack
Languages
Frontend
Databases
Platforms
DevOps
Design
My Projects
A showcase of my work - some were collaborative efforts with other talented developers


First Lady Scholarship App
Mobile scholarship management with automated eligibility checking


Visitor Management System
Digital system for visitor logging and security tracking


Prayer Times & Qibla Finder
Islamic app with prayer times and mosque locator


It's impossible to list all my projects here - this page would be way too long! But these are some of my favorites.
I'm constantly experimenting with new technologies and building solutions to real-world problems.
Explore More on GitHubLet's Connect
Open to new opportunities and collaborations
Remote - Worldwide
Available globally
Available: Yes
Open to opportunities
kareithibrian2@gmail.com
PHONE
+254 718 593 392
GITHUB
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