Hi, I'm Yonas Alem
Senior Software Engineer • Full‑Stack Developer
I build scalable, high-performance applications that drive business growth. Specialized in cloud architecture, microservices, and full-stack development with a proven track record of reducing costs by 73% and improving performance by 40%.
About Me
Summary
Results‑driven Senior Software Engineer with 5+ years building enterprise systems for fintech, gaming and government. Specialized in full‑stack development, microservices and cloud infrastructure with a strong focus on performance and cost efficiency.
- 40% API performance improvement through caching and query tuning
- $22K+ monthly cloud savings via architecture optimization
- 35% throughput increase by migrating to gRPC microservices
- Led and mentored 4+ engineers in agile environments
Core Technical Skills
Proven Results
Measurable impact across multiple projects and technologies
These metrics represent real-world impact across fintech, gaming, and government projects. Each improvement directly contributed to business growth and user satisfaction.
Experience
Senior Full-Stack Developer · Mereb Technologies
Apr 2022 – Present · Addis Ababa, Ethiopia- Improved API latency by 40% with Redis caching and query optimization
- Migrated monolith to gRPC microservices increasing throughput by 35%
- Reduced infra spend by $8,000/month via S3 cold storage strategy
- Mentored 4 engineers; implemented CI/CD with 60% fewer deployment errors
Full-Stack Developer (Remote) · Affiliate.com
Feb 2023 – Aug 2023 · Israel (Contract)- Modernized legacy PHP to Node.js microservices with tRPC for 10K+ daily txns
- Automated reporting in Python saving 20+ hours/month and improving accuracy 95%
- Built internal analytics dashboards used by 200+ users
Frontend Developer · Eagleilon Systems Technology
Mar 2021 – Apr 2022 · Addis Ababa, Ethiopia- Delivered 4+ production web apps from design to deployment
- Integrated secure payments (Visa, Mastercard, Telebirr)
- Raised Lighthouse performance from 45% to 97% via code-splitting and optimization
What Teams Say
Real feedback from colleagues and stakeholders across different industries
"Yonas consistently translates business objectives into performant, reliable systems. Our deployment errors dropped dramatically after his CI/CD revamp, and the 40% API performance improvement he delivered directly impacted our user retention."
"He delivered measurable wins fast — API response times down 40%, and infra bills slashed by $22K monthly. His pragmatic approach to engineering and cost awareness made him an invaluable team member."
"Yonas led our microservices migration with exceptional technical leadership. His ability to balance technical excellence with business impact is rare. The 35% throughput increase he achieved was game-changing."
"Working with Yonas was a game-changer for our government platform. His expertise in scalable architecture and automated workflows improved our citizen engagement by 40%. Highly recommend for any complex technical challenge."
How I Work
Case Studies
Deep dives into complex technical challenges and their solutions
Real Gaming Poker Platform – Cost and Scale Optimization
Problem
High infrastructure costs ($30K/month) and latency issues under load were affecting margins and user experience. The monolithic architecture couldn't handle the scale needed for real-time gaming.
Solution
Re-architected to microservices using gRPC, implemented Redis caching layer, optimized database schema with proper indexing, and redesigned AWS infrastructure with auto-scaling and cost-effective storage strategies.
Results
- 40% reduction in API latency through caching and query optimization
- $22K+ monthly savings via S3 cold storage and resource optimization
- Zero financial discrepancies at scale with improved transaction handling
- 35% throughput increase after microservices migration
Key Metrics
Technical Architecture
Architecture: Client → Load Balancer → API Gateway → Microservices (Game, User, Payment) → Redis Cache → MySQL Cluster
Government Constituent Platform – Scalability and Automation
Problem
Manual processing of 1000+ daily citizen complaints was inefficient and error-prone. The system lacked automated workflows and intelligent content classification.
Solution
Built scalable RESTful API with FastAPI, integrated Azure Cognitive Services for voicemail-to-text transcription, implemented automated approval workflows, and created personalized communication system.
Results
- Scaled to handle 1000+ daily submissions with automated processing
- 40% improvement in citizen engagement through personalized outreach
- 95% accuracy in content classification using AI services
- Automated reporting saved 20+ hours per month
Key Metrics
Technical Architecture
Flow: Citizen Input → AI Classification → Automated Workflow → Personalized Response → Analytics Dashboard
Want to see more technical details or discuss a similar challenge?
Let's DiscussFeatured Projects
A selection of projects showcasing my expertise in full-stack development, cloud architecture, and business impact.
Architected and developed an end-to-end real-time multiplayer poker system supporting multiple game variants. Optimized database schema and queries for transaction accuracy at scale, ensuring zero financial discrepancies. Reduced monthly server costs from $30,000 to $8,000 through strategic AWS architecture optimization and resource management.
Developed a scalable RESTful API backend processing 1000+ daily complaint submissions with automated approval workflows. Integrated Azure Cognitive Services for voicemail-to-text transcription and intelligent content classification. Implemented an automated citizen communication system with personalized greetings and response templates, improving engagement by 40%.
Integrated OpenAI GPT models to generate personalized resumes, cover letters, and ATS optimization recommendations. Developed a responsive Vue.js frontend with real-time resume scoring and live document preview functionality. Optimized mobile user experience, reducing page load times by 60% through asset optimization and lazy loading.
Built a comprehensive analytics platform for e-commerce businesses with real-time data visualization, inventory management, and predictive analytics. Implemented automated reporting and alerting systems that saved 20+ hours per month for business operations.
Thought Leadership
Sharing insights on software architecture, performance optimization, and industry best practices
Honest Review of Gemini CLI
I had my first taste of AI agents and I was blown away by the potential. I'm not sure if this is the future of software development, but it's definitely something to keep an eye on.
Let's Work Together
I'm open to remote opportunities worldwide. Whether you have a project in mind or just want to chat about technology, I'd love to hear from you.
Get in Touch
Quick Actions
I'm currently open to full-time remote positions and interesting freelance projects.