I specialize in
Full Stack Developer & Fintech Engineer building card payment systems with ISO 8583 & SPDH protocols. Based in Addis Ababa, Ethiopia.
Full Stack Developer · Fintech Engineer · Security Researcher
I'm a Full Stack Developer at Etta Solutions Plc, Addis Ababa, specializing in fintech payment integrations using ISO 8583 and SPDH banking protocols. I build card-based POS systems, enterprise web applications, Angular SPAs, and Android mobile apps.
BSc in Software Engineering from Wachemo University (2020–2025). Passionate about financial technology, secure systems, and software that solves real problems.
Years Experience
Projects Built
Technologies
Commits (PIMS)
Specialized in fintech payment systems and full-stack development
ISO 8583
SPDH Protocol
TCP/IP Sockets
POS Integration
REST APIs
Java
Spring Boot
PHP
Laravel
Python
Node.js
MySQL
PostgreSQL
MongoDB
Docker
AWS
Angular
React
Vue.js
TypeScript
JavaScript
HTML5
CSS3
SASS/SCSS
Tailwind CSS
Bootstrap
Android (Kotlin)
Flutter
React Native
C++
C
Arduino
Git
CI/CD Pipelines
A selection of my best work — click a category to filter
Full-featured web application managing prison operations with 10+ user roles — police officer, lawyer, medical officer, sysadmin, and more. 186 commits, Docker-deployed. Forked by 3 external developers.
Institutional employee clearance workflow system with 21 controllers, multi-step approval chains, email notifications, and PDF generation. Built for Bahir Dar University.
Desktop Java application with client-server architecture for property listing and management. Rich GUI with 25+ interactive components.
Android navigation app for Wachemo University — locates dormitories, classrooms, cafeteria, and facilities. Built with Java and Android Studio.
Multi-factor door lock using RFID + PIN keypad, servo motor actuation, I2C LCD display, and temperature sensing. Documented with photos and demo video.
Mobile-controlled cooking system for remote operation. Won a school innovation competition — the project that sparked a career in technology.
Full-featured Angular 8 single-page application for human resource management. Modules for employees, recruitment/candidates, departments, job listings, company management, and a dashboard. Built with TypeScript and Angular CLI.
Android food application built in Java with Android Studio. Currently in active development — the most recently updated project in the portfolio (February 2026), demonstrating ongoing mobile development work.
Laravel-based web application for job listing and management. Built with PHP/Blade templating, handling job postings, applications, and management workflows.
My professional journey so far
Ethical security testing conducted in controlled environments
Boolean-based, error-based, and time-based blind SQL injection vulnerabilities identified on a local test web application.
View LogBoolean-based and time-based blind SQL injection in the login form of a travel management system.
View LogTime-based blind SQL injection in login and multiple form inputs of a travel management system.
View LogBoolean-based, error-based, and time-based blind SQL injection vulnerabilities in the email registration field.
View LogMultiple SQL injection vulnerabilities including UNION query-based injection identified in a bus management system.
View LogHave a project or opportunity? Let's talk.