KELVIN FREDERICK KERIMU
Lagos,Nigeria
Summary
Innovative Lead Developer known for high productivity and efficient task completion. Skilled in software architecture design, agile project management, and cross-platform development. Excel in problem-solving, team collaboration, and adaptability to rapidly changing technologies. Committed to delivering quality solutions on time while fostering positive team dynamics.
Overview
8
8
years of professional experience
2024
2024
years of post-secondary education
1
1
Certification
Work History
Lead Developer
GravId
San Francisco, USA
04.2025 - Current
- Developed and optimized APIs using TypeScript/Node.js, PostgreSQL, and MongoDB, improving response times by 25%.
- Member of the core bug-fix team, resolving production issues and reducing downtime by 40%.
- Collaborated on React + TypeScript frontend, improving UI rendering efficiency and memory usage.
- Translated Figma designs into production-ready mobile applications with smooth UI/UX.
- Integrated real-time synchronization, push notifications, and secure authentication flows.
- Automated CI/CD pipelines with GitHub Actions for reliable builds and deployments.
- Designed scalable backend systems and implemented AI-driven performance monitoring to maintain system health.
Software Engineer
Snapbrillia
San Francisco, USA
04.2023 - 03.2025
- Collaborated on React + TypeScript frontend, improving UI rendering efficiency and memory usage.
- Designed scalable backend pipelines and implemented AI-driven performance monitoring to maintain system health.
- Worked cross-functionally with design and product teams to deliver seamless user-facing features.
- Contributed to continuous product improvements, enhancing system reliability and developer workflow.
Mobile Application Developer (Fullstack Developer)
Punch Group
Lagos, Nigeria
02.2024 - 12.2024
- Worked on 2 large-scale client apps and desktop projects (Zwilt, Looking2Hire,) including health & medical applications and trading/financial platforms.
- Built and deployed apps on Google Play Store and Apple App Store, delivering secure and scalable solutions.
- Developed trading analysis features and implemented custom Pine Script strategies for a client's trading platform.
- Translated Figma designs into production-ready mobile applications with smooth UI/UX.
- Integrated real-time sync, push notifications, and secure authentication flows.
- Automated CI/CD pipelines with GitHub Actions for reliable build & deployment.
- Designed scalable backend pipelines and implemented AI-driven performance monitoring to maintain system health.
Mobile Application Developer (Senior Software Engineer)
Leedsmode
01.2023 - 06.2024
- Developed and launched 4+ (Protraina, WangaPay, and more) cross-platform mobile applications for different clients using Flutter, Kotlin, and TypeScript APIs, all published on App Store & Play Store.
- Implemented real-time synchronization, push notifications, and secure authentication with JSON-based APIs.
- Set up CI/CD pipelines with GitHub Actions for automated builds and seamless deployments.
- Worked extensively with Supabase and Firebase for authentication, cloud functions, and data synchronization.
- Collaborated with client teams to translate Figma designs into production-ready apps, ensuring smooth UI/UX delivery.
Software Engineer
Jumia
Lagos, Nigeria
04.2019 - 07.2020
- Developed customer reordering feature, increasing retention by 20%.
- Streamlined review moderation tool, reducing review processing time by 50%.
- Worked on mobile apps using up-to-date technologies.
Backend Developer
Ebilite
Lagos, Nigeria
05.2018 - 04.2019
- Designed and maintained backend systems for a cryptocurrency exchange platform.
- Implemented payment gateway functionality for secure crypto-fiat transactions.
- Optimized data workflows, resulting in a 30% increase in processing efficiency.
Education
B.Eng. - Electrical/Electronics Engineering
Federal University of Petroleum Resources Effurun (FUPRE)
Certificate - Computer Applications
Green Value Computer College
LagosCertificate - Software Engineering
Green Value Computer College Advanced
LagosSkills
- Flutter
- Kotlin
- React Native
- Reactjs
- Nodejs
- TypeScript
- Python
- PHP
- Rust
- PostgreSQL
- MongoDB
- MySQL
- Redis
- Git
- GitHub Actions
- Jenkins
- Docker
- Firebase
- Figma
- GraphQL
- REST APIs
- JSON/YAML
- CI/CD pipelines
- Analytical thinking
- C
- Mobile app development
- Javascript
- Machine learning
- Web application development
- SQL
- Development lifecycle management
- Library design
- API integration
- JavaScript expert
Websites
Certification
- Microsoft Office Specialist (Word & PowerPoint), 2017
- Data Analysis with Excel, 2017, LinkedIn Learning
- Basic MS-DOS Operations, 2017, Self-Study
References
- Ninh Tran, Founder, CEO, GravId, Ninh@grav.id
- Goodswill J. Babatude, Team Lead, Ebilite, Godswillbabatude30@gmail.com
- Beatrice Thelisma, Co Founder, CTO, GravId, beatricethelisma@grav.id
- Oluwatomisin Adeyinka Tomori, Team Lead, Punch, oluwatomisin@punch.agency
- Jesutobi Joseph, Team Lead, Leadsmode, jesutobidev@gmail.com
Languages
English
First Language
Timeline
Lead Developer
GravId
04.2025 - Current
Mobile Application Developer (Fullstack Developer)
Punch Group
02.2024 - 12.2024
Software Engineer
Snapbrillia
04.2023 - 03.2025
Mobile Application Developer (Senior Software Engineer)
Leedsmode
01.2023 - 06.2024
Software Engineer
Jumia
04.2019 - 07.2020
Backend Developer
Ebilite
05.2018 - 04.2019
B.Eng. - Electrical/Electronics Engineering
Federal University of Petroleum Resources Effurun (FUPRE)
Certificate - Computer Applications
Green Value Computer College
Certificate - Software Engineering
Green Value Computer College Advanced