Haylemichael Tsega

backend developer at eagle lion system technology

Addis Ababa, Ethiopia

addis pay financial technology

Nov 2023 - Aug 2025 -1 yr, 9 months

Ethiopia

Job Details:Built secure, scalable checkout APIs with Node.js, Express, MongoDB, Redis, and JWT for Addis Pay payment gateway. Developed a full merchant dashboard with analytics and role-based access. Improved API performance by 40% through Redis-based session caching.

freelancing

Jan 2021 - Present -4 yrs, 7 months

Job Details:Delivered custom full-stack solutions to diverse clients, adapting to varied business needs and technical requirements. Designed and implemented REST APIs, admin dashboards, and real-time features using Node.js, Express.js, MongoDB, and React, Next.js. Built secure, scalable backend architectures and responsive UIs with JWT auth, payment integration, and cloud deployment. Collaborated directly with clients to define scope, deliver features, and deploy applications efficiently.

eagle lion system technology

Ethiopia

Job Details:Developed and maintained core backend services for internet banking, super app ecosystems, lottery platforms, and payment gateways, operating in a microservices architecture. Engineered scalable APIs with high throughput and low latency, integrating secure authentication, rate limiting, and service discovery. Worked across services involving transaction processing, wallet services, KYC modules, and event-driven messaging using RabbitMQ.

Bachelor's Degree in software engineering
Addis Ababa Science and Technology University
Jan 2018 - Jan 2023 - 5 yr