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brook yonas

@brookyonas

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Software engineer at foodHost who cut checkout failures 30–40% and builds mobile, web, and backend systems.

United States

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At foodHost, I deliver production features across Flutter apps and AWS microservices for three live apps. I integrated separate services for consumer flows and used Socket.IO to bring home and order polling close to zero.

At StableDuel, I built an Android product with four flavors and helped launch At The Races UK, including payments, live race video, and KYC. I also built the core game loop with live Redis rankings and race-day automation.

In my independent Path Watch research, I built a passive monitor to log real network data and compare throughput under different conditions. I tested the results statistically before considering a more complex model, and documented the study's limitations.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

foodHost

Oct 2022 - Present (4 years 1 month)

Owned production delivery across Flutter clients and AWS microservices, supporting 3 live apps. Integrated consumer flows and reduced polling with Socket.IO, and shipped Stripe Checkout with fee/tax calculation.

Flutter BLoC Dio Retrofit Socket.IO Firebase Stripe AWS EC2 RDS Docker NodeJS Spring Boot OneSignal

Senior Software Engineer

Tefer

Nov 2021 - Sep 2026 (4 years 10 months)

Directed development of cross-industry apps using React, Vue.js, and Kotlin, focusing on high-conversion features for e-commerce. Managed Node.js/Python backend services and optimized databases for cloud scaling.

React Vue.Js Kotlin NodeJS Python PostgreSQL NoSQL Cloud Computing

Senior Software Engineer

StableDuel

Jan 2023 - Apr 2025 (2 years 3 months)

Built Android product with 4 flavors covering 161 tracks, with US and UK payments in the same codebase. Reduced leaderboard round-trips and launched At The Races UK with Nuvei payments and live race video.

Kotlin Django Rest PostgreSQL Redis Celery Auth0 Nuvei CHRIMS ExoPlayer Amplitude Azure DevOps

Mobile App Developer

Berbera Market

Feb 2022 - Oct 2022 (8 months)

Engineered a timed, lottery-style auction feature processing 1,000+ real-time bids per session via Firebase/Firestore. Optimized UI performance for high-frequency data updates, cutting average checkout time by 15 seconds.

Firebase Firestore Mobile Development UI Optimization

Education

Degrees, certifications, and relevant coursework

Harvard University

Aspire Leaders Program, Leadership

2023 - 2023

Activities and societies: Gained access to leadership training, professional development resources (resume building, LinkedIn tips, interview strategies), and live interactions with a global cohort.

Participated in the Aspire Leaders Program, co-created with Harvard Business School, gaining leadership training and professional development.

Addis Ababa University

Bachelor of Science, Information Technology

Activities and societies: Relevant Coursework: Fundamentals of Computer Science and Programming, Data Structures and Algorithms, Object-Oriented Programming, Operating Systems, Software Engineering, Database Systems, IT Security, and System Programming.

BSc in Information Technology from Addis Ababa University, completed in July 2021.