One engineer, both sides of your product: Flutter mobile apps and React/Node web platforms, built to keep working when the internet doesn't. Remote, working US and EU hours.
[ 01 / Services ]
No generic packages. No bloated features. Every build is scoped carefully, priced transparently, and engineered from the ground up.
Performance-optimized, polished mobile apps built with Flutter. Architectures designed to keep running where connectivity is weak or intermittent.
Custom reactive web platforms, admin dashboards, and operational portals built with React, Node.js, and high-performance database infrastructure.
LLM operations, reliable document parsing, automated scrapers, and smart pipelines built into your operations to give production hours back to your team.
[ Architectural Standard ]
Operational software should not fail when the internet flickers or a local network node drops out. I build with a physical-world, engineering-first mindset.
Inventory engines and coordination nodes with full transactional integrity, keeping live data accurate, reliable, and instantly auditable.
Peer-to-peer mechanisms, WebSockets, and database sync built for volatile environments with spotty, unreliable networks.
Practical AI integrations with deterministic guarantees: parsing complex business documents, summarizing data with safety checks, and processing analytics smoothly.
[ 02 / Selected Work ]
Complete luxury-tier hotel inventory terminal. Restructured complex spreadsheet patterns into a clean relational engine (Prisma/PostgreSQL) with automated tracking and accurate cost control. Fully self-hosted on Hetzner, and I own the entire path from Dockerfile to CI/CD to production.
REAL-TIME WORKSTATION ARCHITECTURE
Multi-node kitchen coordination system. Automatic offline device routing syncs tickets across local subnets, eliminating single points of failure from cloud outages.
Lightweight store bookkeeping app that handles high transaction volumes offline, then batches and reconciles securely in the background when a connection returns.
Full-stack mobile commerce platform built with Flutter and FastAPI. Scalable backend, optimized API design, secure authentication, and offline-aware data sync for a reliable experience across varying network conditions.
Multi-sector beauty and grooming booking ecosystem for Addis Ababa. Real-time slot collision prevention, an automated 30-minute reservation hold with deposit proof verification, and dedicated multi-tenant admin portals for each business.
INTELLIGENT DOCUMENTATION AGENTS
AI-augmented legal processing system. Custom FastAPI services parse long-context judicial briefs, extract semantic entities, and return contextual answers to legal queries instantly.
[ 03 / Testimonials ]
"Yohannes has been instrumental in developing our mobile app and consulting on the complete website redesign, from UI/UX to API integration and backend architecture. His technical expertise, problem-solving skills and ability to understand the bigger picture have been valuable to Arifget. I appreciate his commitment to turning our vision into practical, well-structured software solutions."
"Working with Yohannes on Veristock has been a great experience. He understood the challenges we face in hotel operations and translated them into practical software solutions. I was impressed by his commitment, problem-solving skills and ability to turn our ideas into a working system."
Tell me about your product requirements. I'll reply within 24 hours with feedback on scope, timeline, and a flat cost.
