Frontend
Interfaces and design systems
- Next.js
- React
- TypeScript
- JavaScript
- Angular
- Tailwind CSS
- HTML5
- CSS3
- Sass
- GraphQL
Evans MogeniSenior Software Engineer
Available for work
Building fintech platforms, mobile apps, and backend systems that scale.
I design and build wallet engines, payment integrations, and cross-platform apps — 4+ years delivering products end to end across fintech, enterprise SaaS, and mobility.
- Fintech Platforms
- Backend APIs
- Cross-Platform Mobile
- Cloud & DevOps
Nairobi, KenyaUTC+3Open to remote & hybrid
- Years Experience
- 4+
- Projects Delivered
- 20+
- Technologies
- 10+
01
Capabilities
Systems & Stack
The technologies I design, build, and operate with across web, mobile, data, and cloud.
10
Mobile
Cross-platform apps and releases
- React Native
- Expo / EAS
- Flutter
- Dart
- Kotlin
Backend
APIs, services, and business logic
- Node.js
- NestJS
- Express
- Django
- FastAPI
- Flask
- Spring Boot
- Python
- Java
- PHP
Data
Storage, caching, and modelling
- PostgreSQL
- MongoDB
- MySQL
- Redis
- SQLite
- Firebase
- Prisma
- TypeORM
Cloud & DevOps
Shipping and running in production
- Docker
- GitHub Actions
- GitLab CI
- Vercel
- Google Cloud
- Render
- Railway
- Git
- GitHub
Integrations & Tools
Payments, testing, and design handoff
- M-Pesa
- Stripe
- PayPal
- Postman
- Selenium
- Figma
- Jira
- Web3.js
- Ethers.js
- Unity
Ways of working
- Agile
- Scrum
- Code Review
- Unit Testing
- Automated Testing
- Nx Monorepos
- CI/CD
- Technical Documentation
02
Track Record
Engineering Experience
Roles, ownership, and measurable impact — expand any position to see the detail behind it.
Nairobi, Kenya
Leading frontend architecture for transport management platforms, translating complex UI/UX wireframes into scalable, production-ready applications.
- Leading frontend architecture for transport management platforms, translating complex UI/UX wireframes into functional, interactive applications.
- Collaborating with backend engineers to define flexible architectures and integrate booking and payment services via REST and GraphQL APIs.
- Optimizing web applications for maximum speed and scalability, improving system reliability and customer experience metrics.
- Implementing component architecture best practices to ensure code reusability and maintainability across the payment integration platform.
React.jsNext.jsTypeScriptGraphQLREST APIsPayment Systems
Nairobi, Kenya
Architected NestJS/Node.js fintech services and led a BNPL feature that increased partner merchant transactions by 40%.
- Architected and owned NestJS/Node.js backend services including wallet engine, salary advance workflows, and withdrawal APIs.
- Led design implementation and technical feasibility analysis for a Buy Now, Pay Later (BNPL) feature, driving a 40% increase in merchant transactions.
- Developed responsive, reusable UI components using React.js and React Native, building a scalable code library for future fintech projects.
- Integrated complex financial and loan APIs to ensure compliance and automate disbursements.
- Integrated third-party signing platforms (DocuSign JWT Grant, PandaDoc) into backend services for multi-role sequential document signing workflows.
- Implemented automated end-to-end testing frameworks, reducing production issues by 30% and ensuring cross-browser compatibility.
NestJSNode.jsReact.jsReact NativeDocuSignPandaDoc
Key Achievements
+40%
BNPL Impact
Led Buy Now, Pay Later feature delivery at Paya Ventures.
-35%
Performance Gains
Reduced average page load time through SPA optimization at Muru Technologies.
-30%
Quality Assurance
Automated E2E testing reduced production issues across fintech releases.
-30%
Bug Reduction
Unit and automated testing lowered post-release defect rates at Octatech Innovations.
4+ Yrs
Full Stack Delivery
End-to-end ownership across backend APIs, mobile apps, and web frontends.
NestJS
Fintech Systems
Built wallet engines, salary advance workflows, and payment integrations.
80+
Open Source
Active public repositories and contributions on GitHub.
Web & Mobile
Cross-Platform
Delivered products across React, Next.js, React Native, and Flutter.
E-Sign
Document Workflows
Integrated DocuSign and PandaDoc for multi-role signing flows.
03
Selected Work
Platforms & Products
Systems I've shipped end to end across fintech, enterprise SaaS, and mobility.
Mikrosell Wine POS
Mobile-first wine and spirits POS for Kenyan retailers. Multi-branch sales, M-Pesa and cash reconciliation, offline till sync, stock alerts, and owner dashboards — built to run from the phone already in your pocket.
- React.js
- Next.js
- Express.js
- GSAP
- M-Pesa
Paya Web and Mobile Applications
Comprehensive Paya fintech platform spanning web and mobile — wallet, savings, business, and group accounts, plus Buy Now, Pay Later (BNPL) checkout that increased partner merchant transactions by 40%.
- NestJS
- React.js
- Next.js
- React Native
- MongoDB
Mobitill Epesi — Bus Ticket Booking
Long-distance bus ticket booking portal built at Data Integrated — route search, passenger selection, and integrated payments via M-Pesa, Airtel, Visa, and Mastercard for hassle-free travel across Kenya.
- React.js
- Next.js
- TypeScript
- GraphQL
- M-Pesa
- Payments Integration
- Material UI
Metroberry — Driver & Employee Apps
Cross-platform mobile apps for Metroberry, a Kenyan corporate mobility platform that arranges shared employee commutes between work and home. Built the Driver app (published on Google Play) and the Employee companion — dispatcher-assigned trips with live turn-by-turn navigation via Google Maps, multi-stop passenger check-in and check-out, in-app calling and SMS, SOS reporting, driver document compliance, earnings tracking, and exportable trip history. React Native Expo with Tamagui for a consistent UI across phones and tablets.
- React Native
- Expo
- Tamagui
- Google Maps
- TypeScript
- Push Notifications
- SMS
Recours Global — Salary Advance
Paya salary advance benefit platform for employers and employees. End-to-end workflows for advance requests, approvals, and disbursements with secure document signing integrated into the application flow.
- NestJS
- Next.js
- PandaDoc
- TypeScript
- MongoDB
- Payments Integration(Paya Wallet)
Taniq POS - Shop Management
Multi-tenant SaaS point-of-sale platform for retail shops — fast checkout, real-time reports, role-based access, and inventory management. Powers live businesses processing 100K+ Kenyan shillings in transactions per month.
- React.js
- Next.js
- TypeScript
- MongoDB
- Node.js
- Express.js
Fortways Property Managers
Multi-tenant SaaS platform streamlining property management for modern agents — tenant and lease management, rent collection, maintenance requests, and secure financial tools for daily operations.
- React.js
- Next.js
- TypeScript
- MongoDB
- Node.js
- Express.js
- Payments Integration
04
Foundation
Background & Education
The academic grounding behind the engineering, and the learning that keeps building on it.
Bachelor of Science in Mathematics and Computer Science
Murang'a University of Technology
Murang'a, Kenya
Foundation in mathematics, computer science, algorithms, data structures, and software development principles.
06
Contact
Get In Touch
Have a project in mind, a role to fill, or just want to say hi? I read every message.
Contact information
Phone
+254 728 366 248Location
Nairobi, Kenya
Open to work
Let's build something worth shipping
I'm available for full-time roles and freelance engagements — remote or hybrid from Nairobi, Kenya.