01
Backend systems that stay understandable as they grow.
I work across service boundaries, real-time communication, data layers and delivery automation—without losing sight of the people maintaining the system next.
Software Engineer
Hello, I'm
Surafel Workayehu
I build reliable full-stack and distributed software—from real-time microservices to focused product experiences.
Based inAddis Ababa, Ethiopia
3+Years building
100K+Users supported
100+Deployments
500+Problems solved
01 / Profile
Engineering with
clarity and care.
02
Primary stack
TypeScriptJavaScriptPythonC#JavaNestJSNext.jsReactAngularFastAPI
03
Open to strong teams and meaningful problems.
04
Verified certificate
Supervised Machine Learning
Regression and Classification · DeepLearning.AI & Stanford Online · 2023
View credential ↗02 / Selected work
Products built for
real use.
01 · Education Technology↗
Aladia Learning Platform
A scalable social-learning platform serving a six-figure user community.
02 · Industrial Software↗
elunic Industrial Platforms
Maintainable customer-specific industrial software in a shared Nx monorepo.
03 · Community Fintech↗
Community Small Business Support Network
Transparent fundraising and community-impact tracking for small businesses.
04 · Developer Education↗
SysCode
A system-design learning environment with practice, contests and mock interviews.
03 / Experience
Built across products,
teams and borders.
elunic AG
Full-Stack Developer (Part-Time)
Oct 2025 - Present
Berlin, Germany · Remote
Industrial software across React, NestJS, Python and Nx, including reusable modules, customer environments and production integrations.
Aladia
Software Engineer (Backend Heavy)
Apr 2024 - Mar 2026
Brescia, Italy · Remote
Core product features, real-time microservices and CI/CD for a social-learning platform serving more than 100,000 users.
Addis Ababa University
Full-Stack Developer Intern
Feb 2024 - Jun 2024
Addis Ababa, Ethiopia
ASP.NET Core and Angular applications with REST APIs, SignalR notifications, PostgreSQL and Docker.
04 / Open source
Contributing beyond
my own codebase.
Production fixes accepted upstream, backed by focused tests, performance evidence and public review trails.
Saxy / Tellstone
Enforced TLS handshake deadlines without adding work to the request path.
Added an engine-ticker sweeper that closes stalled implicit-TLS and STARTTLS connections after their deadline, preventing unauthenticated clients from accumulating sockets and TLS buffers while keeping established sessions active.
- 01
Designed a concurrency-safe pending-handshake registry that never exposes event-loop-owned connection state to the ticker goroutine.
- 02
Added five tests covering silent and partial handshakes, established sessions and concurrent sweeps.
- 03
Benchmarked 1,024 tracked handshakes at roughly 3 ns per connection with zero allocations per sweep.
F4RAN / cuimp-ts
Eliminated Windows console-window flashing in a cross-platform HTTP client.
Updated both standard and streaming process execution paths to hide spawned console windows on Windows without changing Linux or macOS behavior.
- 01
Implemented the fix across
runBinary()andrunBinaryStream(). - 02
Added regression coverage for the child-process configuration.
- 03
Passed type checking, linting, builds and 13 CI checks before merge.
05 / Education
Foundation and
continuous learning.
BSc in Software Engineering
Addis Ababa University
CGPA 3.73 / 4.0Software architecture, distributed systems, AI, ML, NLP, operating systems and compiler design.
A2SV Coding Bootcamp
Africa to Silicon Valley
Algorithms & engineeringIntensive data structures, competitive programming, interview preparation, peer review and team-based engineering.
06 / Journey
A focused path,
still unfolding.
2026
Scaling industrial and learning platforms across remote international teams.
2025
Graduated with a 3.73 CGPA, led CSBSN and joined elunic AG.
2024
Joined Aladia, shipped real-time microservices and completed a full-stack university internship.
2023
Completed A2SV and a Stanford/DeepLearning.AI machine-learning certificate.
2021
Started Software Engineering at Addis Ababa University.