Aaron AdetunmbiBackend Engineer
Lagos, Nigeria · +2348103622796 · adetunmbikenny@gmail.com · LinkedIn · Github
SUMMARY

Backend Engineer with 3 years of experience building scalable and efficient systems using TypeScript, Node.js, and NestJS. I specialize in creating robust APIs, optimizing performance, and delivering secure backend solutions that align with business goals.

RELEVANT EXPERIENCE
BACK-END DEVELOPER, ADMISSION GENIE (CONTRACT)JAN 2025 – JUN 2025
Backend Development with NodeJS, NestJS, TypeScript, PostgreSQL
  • Built a multi-tenant medical data platform for clinics, featuring custom forms, AI evaluation, and PNL (client-side-only) fields for HIPAA-aligned privacy, enabling 12+ clinic onboardings in 3 months.
  • Developed a secure RBAC system with OTP verification, cutting unauthorized access by 90% while allowing admins to restrict sensitive field storage.
  • Automated 65% of assessment time via smart rules and AI scoring, maintaining 95% diagnostic consistency across clinics.
  • Managed full deployment lifecycle on AWS including frontend (Amplify), backend (EC2), and ongoing client support for all clinic partners
BACK-END DEVELOPER, UBULU AFRICAJAN 2024 – DEC 2024
Backend Development with NestJS, TypeScript, PostgreSQL, AWS, MongoDB
  • Led development of Pitch2Win platform handling 2,500+ pitch deck submissions with RBAC, AWS deployment (Amplify/EC2/RDS), and multi-role workflows.
  • Built hackathon/competition systems (NigComSat, Digital Nigeria) processing 3,400+ applications with 3-stage evaluation and regional filtering.
  • Created Akwa Ibom Tech Week's multi-challenge system supporting video/file submissions and dynamic grading criteria.
  • Designed scalable architectures for all platforms with secure role-based dashboards and automated processing workflows.
FULL-STACK DEVELOPER, FERN LIFEMAY 2023 – JUL 2023
Fullstack Development with Domain Driven Design, NodeJS, NestJS, TypeScript, React, Framer Motion, Tailwind.
  • Applied Domain-Driven Design to develop APIs serving the vendor dashboard and iOS app.
  • Developed a role-based session management system to track user interactions and ensure continuous logged-in status.
  • Built a recommendation system that personalizes furniture suggestions based on users' style choices (e.g., Brutalism) during onboarding.
BACK-END DEVELOPER, VOXCLIPSDEC 2022 – APR 2023
Backend Development with Python, NodeJS, TypeScript, MongoDB, Redis.
  • Accountable for deciding which features to be built, determining their complexity along with the rest of various team leads.
  • Facilitated the basic framework for over 4 active features, resulting in a 60% increase in user engagement and positive feedback.
  • Optimized communication by involving marketers in the implementation specifications, leading to a 40% improvement in collaboration and alignment.
  • Engaged in peer coding with teammates, reducing the time to close pull requests by 30%.
  • Collaborated with the DevOps engineer to implement logging solutions, resulting in an 80% increase in bug and outage reports.
MORE EXPERIENCE
WEB DEVELOPER, ALFINGA STUDIOS LIMITED (CONTRACT)OCT 2022 – DEC 2022
Web Development with React, GraphQL, Redux.
  • Enhanced codebase with suspense boundaries and reusable components, boosting initial load time by 40% and improving First Meaningful Paint.
  • Cooperated with 3 in-house developers to add new features and functionality to the application.
  • Optimized media assets and converted them to modern formats like WebP, reducing app size by at least 200MB.
  • Monitored and troubleshooted production issues and resolved them in a timely manner.
BACK-END INTERN, HNGi9OCT 2022 – DEC 2022
Backend Development with Python, NodeJS, MongoDB, Mongoose.
  • Supervised a team of over 7 developers throughout the development cycle.
  • Aided the design team in creating presentation slides during our conceptualization phase that got a rating of over 73% from the mentors.
  • Attained first place in terms of project complexity and delivery efficiency during multiple instances during the internship.
  • Facilitated the effort to improve search on ZuriChat by adding an Indexer which increased the search result quality and speed by 40%.
  • Conceptualized and refined talking heads project, which was later renamed to Voxclips.
  • Delivered a minimum viable product in 8 weeks.
BACK-END DEVELOPER, ADELS COOPERATE SOLUTIONSAUG 2020 – FEB 2021
Backend Development with NodeJS, MongoDB, Mongoose.
  • Engineered the backend infrastructure for an online learning platform, implementing video upload functionality to streamline course content delivery, similar to Udemy.
  • Integrated an attendance management system to track students' participation and engagement which led to at least 20% in students' attendance.
  • Orchestrated comprehensive training on HTML, CSS, and JavaScript to two separate groups of NYSC corps.
  • Contributed to the maintenance and upkeep of data entries for new platforms/applications, ensuring 100% accuracy and completeness.
EDUCATION
COMPUTER SCIENCE (BSC), KWARA STATE UNIVERSITYCGPA: Second Class (Upper Division)
CONTACTFeel free to reach out via email or connect with me on LinkedIn and GitHub.