Kariuki Stephen
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Building reliable, scalable, and maintainable software with expertise in full-stack development, automated testing, and DevOps.
About Me
Building Systems That Actually Work
I’m a software engineer who cares about reliability, simplicity, and impact. I like turning complex problems into working systems that people can trust.
Location
Cardiff, United Kingdom
Education
Cardiff University
Applied Software Engineering
Specialization
Full-Stack Development
Testing & DevOps
Technical Skills
A comprehensive toolkit for building modern, scalable, and accessible applications
Languages
Testing & Automation
Database
Web Development
Version Control
DevOps
Accessibility & UX
Work Experience
Professional journey and key contributions
Entrepreneurial Tech Lead
CurrentAlacrity Entrepreneurship Program
Newport, United Kingdom
- ▸Collaborate with business lead/co-founder and mentors to shape and validate product ideas.
- ▸Lead full-stack development with .NET Core, React, and SQL Server to deliver scalable MVPs.
- ▸Apply Lean Startup and Agile principles to rapidly test, iterate, and refine solutions.
- ▸Translate business concepts and market insights into actionable technical roadmaps.
- ▸Support go-to-market strategies, revenue models, and customer validation.
- ▸Contribute to product pitches, investor reviews, and strategic discussions.
Open-Source Researcher
Centre for Information Resilience
Cardiff, United Kingdom
- ▸Investigated human rights violations for the Myanmar Witness Project using OSINT techniques
- ▸Utilized geolocation, chronolocation and tools like Sentinel and Google Earth Pro
- ▸Expanded research reach through foreign-language SEO
- ▸Produced detailed advocacy reports and strengthened collaboration skills
Junior Software Developer
eProd Solutions
Nairobi, Kenya
- ▸Built a Delphi-based installer for the e-prod with real-time error logging using Grijjy Remote Logger
- ▸Used Jira and OpenProject to coordinate and track team progress
- ▸Deployed Wazuh on Ubuntu for threat detection and response
- ▸Contributed to EUDR compliance via polygon mapping and documentation
What Drives Me
Quality First
Writing clean, maintainable code that stands the test of time
Collaboration
Building better solutions through teamwork and shared knowledge
Innovation
Embracing new technologies to solve complex problems
Accessibility
Creating inclusive experiences for all users
Featured Projects
Showcasing innovative solutions and technical excellence
Alacrity Data Sharing Platform
Best ProjectJanuary 2025 - April 2025
A no-code web platform for encrypted healthcare data sharing to support privacy-preserving AI/ML research.
- •Implemented Fernet and homomorphic encryption for privacy during computation
- •Set up GitLab CI/CD pipelines with 60% enforced code coverage
- •Containerized 6 services with Docker and configured NGINX for secure routing
- •Reduced deployment time to under 2 minutes via automated webhooks
- •Served as Scrum Master, led sprint planning and client demos
Individual Android App Development
April 2024 - May 2024
Android app enabling user authentication with Firebase and location-based service provider search.
- •Implemented Firebase authentication for secure user access
- •Built location-based search to identify nearby service providers
- •Integrated user review system for feedback and trust building
- •Displayed contact info and service costs for transparency
Spring Boot Team Project
Nov 2023 - Dec 2023
Employee peer review platform with dynamic forms, approval workflows, and role-based dashboards.
- •Supported simulated workflows for up to 100 users
- •Implemented backend logic for review requests and approvals
- •Conducted JMeter and VisualVM performance testing
- •Deployed using Terraform and OpenStack, reducing deployment to under 5 minutes
- •Served as Scrum Master for 2 sprints, achieving over 90% sprint goals
Awards & Recognition
Honored for excellence in software engineering and innovation
Best Project Award
Alacrity Data Sharing Platform
Alacrity • April 2025
Recognized as the best final year project for outstanding technical implementation and innovation in privacy-preserving healthcare data sharing. The project demonstrated exceptional use of encryption technologies, CI/CD practices, and exemplary project leadership as Scrum Master, delivering a production-ready platform that enables secure AI/ML research on sensitive healthcare data.
Certifications & Achievements
Continuous learning and professional development
IBM DevOps and Software Engineering Professional Certificate
IBMJan 2025 - April 2025
Microsoft Certified: Azure AI Fundamentals
MicrosoftMay 2025
Docker Foundations Professional Certificate
DockerMay 2025
Microsoft Certified: Azure Fundamentals
MicrosoftJune 2025
Microsoft Certified: Azure Data Fundamentals
MicrosoftJuly 2025
Global Mentorship Initiative (GMI) 2024
GMI2024
Beyond Code
Interests & Hobbies
Continuous Learning
I'm always curious about new tools and technologies to sharpen my skills.
Hiking
I love spending time outdoors, exploring trails, and clearing my mind in nature.
Music
Music helps me focus and recharge—it’s part of my creative rhythm.
Lets Have a Chat
I’m open to discussing new projects, ideas, or opportunities.
Get in Touch
stephenkariuki838@gmail.com
Location
Cardiff, United Kingdom