Justin Dah-kenangnon
Engineer & Developer
Exploring the intersections of Mathematics, Code, and IAM
Professional Summary
Mathematician-turned-engineer with 8+ years building secure SaaS platforms and authentication systems. Specialized in OpenID Connect (OIDC) and OAuth2 implementation, delivering enterprise-grade security solutions. Led teams of medium-sized developers, managed complex portfolios, and shipped several production applications. Currently developing an open-source OIDC server for 2025 release. Leveraging AI tools (GitHub Copilot, ChatGPT Plus) to maximize productivity and code quality.
Ready to architect your next secure solution.Experience
Full-Stack Developer — JustineOffice Ltd
London, UK • 2023-Present
- Developing a multi-tenant SaaS platform
- Implementing advanced security features and authentication systems
- Leading technical architecture decisions
CTO — Selys-Africa
Abidjan, Côte d'Ivoire • 2021-2023
- Led a team of 5 developers delivering software solutions across multiple sectors
- Implemented global infrastructure and application architecture
- Delivered solutions for insurance (SCCONAS), real estate (SIIPAF, Souraley), and architecture (UbysBuild)
- Managed complex project portfolios and client relationships
Software Developer (Freelance)
Remote • 2018-Present
- Developed secure authentication system for ePatriote
- Built and managed UNSTIM University platforms
- Created HR management system for Pharmacie Vale d'Oise
- Developed real estate platform "Construire ou Louer"
Education
Engineering Degree in Mathematics and Numerical Simulation
University of Abomey, Benin • 2021
Focus: Mathematical Modeling and Computational Methods
Preparatory Classes for Engineering Studies
INSPEI, Savalou, Benin • 2018
Technical Baccalaureate (DTI) & Scientific Baccalaureate (Bac E)
Lycée Technique de Bohicon, Benin • 2015
Skills
Technical
- Full-Stack Development
- React/RemixJS
- Node.js/TypeScript
- OAuth2/OIDC
- AI Integration
Domain Expertise
- Mathematical Optimization
- System Architecture
- Security Implementation
- Technical Leadership
- Project Management
Selected Projects & Publications
Open Source Package • 2022
Benin Location Data Libraries (JavaScript & Dart)
Open Source Projects • 2022
TypeScript Express Mongoose API Boilerplate
Open Source Template • 2022