I engineer software systems your business operates on.

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.

View Capabilities → Browse Folio

07+ Years Active Engineering

10+ Shipped Full Scale Ecosystems

Resilient Offline-First Deployments

Yohannes (Jo) Tsegaye

8.9806° N, 38.7578° E (Addis Ababa)

LEAD DEV

[ 01 / STATIONS OF EXPERTISE ]

Architecting workflows designed to minimize friction.

No generic packages. No bloated features. Every build is scoped meticulously, priced transparently, and engineered from the metal up.

01 // CROSS-PLATFORM MOBILE

Native Execution

Performance-optimized, beautifully tailored mobile experiences engineered with Flutter. Features robust architectures built to run offline in challenging connectivity situations.

Custom scoped · Flat pricing

iOS + Android + Sync Layer Configure →

02 // WEB ECOSYSTEMS

Enterprise Backbones

Custom reactive web platforms, admin dashboards, and robust operational portals built with React, Node.js, and high-performance database infrastructures.

Custom scoped · Flat pricing

Custom Admin Panels + API Configure →

03 // AUTOMATION & AI

Workflow Automation

Incorporate advanced LLM operations, reliable document parser engines, automated scrapers, and smart pipelines directly into your operational processes to reclaim production hours.

Custom scoped · Flat pricing

LLM Integrations + Pipelines Configure →

[ ARCHITECTURAL STANDARD ]

Systems designed to withstand friction.

Operational software should not fail when the internet flickers or local network nodes drop out. I approach systems with a physical-world, engineering-first mentality.

01 //

High-Fidelity Operations

Inventory engines and coordination nodes designed with complete transactional integrity, keeping live data accurate, reliable, and instantly auditable.

02 //

Resilient Synchronization

Peer-to-peer mechanisms, WebSockets, and database sync configurations structured for volatile contexts with spotty, unreliable online networks.

03 //

Contextual Intelligent Logic

Practical AI integrations with deterministic guarantees, parsing complex business documents, summarizing data with safety checks, and processing analytics smoothly.

[ 02 / SELECTED REPOS & SHIPPED CODE ]

Proven, live platforms.

// INDEXED_PROJ_COUNT: 05_SYSTEMS

TYPESCRIPT NEXT.JS PRISMA / POSTGRESQL SELF-HOSTED INFRA

Veristock SYSTEM_01

Complete luxury-tier hotel inventory terminal. Restructured highly complex spreadsheet data patterns into a clean relational engine (Prisma/PostgreSQL) with automated tracking and accurate cost control. Fully self-hosted on Hetzner. I own the entire path from Dockerfile to CI/CD to production.

Active Production Demo on request →

REAL-TIME WORKSTATION ARCHITECTURE

FLUTTER WEBSOCKETS FAULT_TOLERANT

Serveflow SYSTEM_02

Multi-node dynamic kitchen coordination system. Facilitates automatic offline device routing protocols to sync tickets smoothly across regional subnets, eliminating single-point cloud system failures.

Offline architecture priority Status: Private Deployment

FLUTTER LOCAL_DATABASE SYNC_LAYER

SouqNote SYSTEM_03

Ultra-light weight store bookkeeping app engineered to process high transactions offline, batching and reconciling background queries securely when mobile connection resumes.

Live on Play Store Store Listing →

FLUTTER FASTAPI SCALABLE_API

Arifget SYSTEM_04

Full-stack mobile commerce platform built with Flutter and FastAPI. Features a scalable backend, optimized API architecture, secure authentication, and offline-aware data synchronization to deliver a reliable shopping experience across varying network conditions.

Active Platform Visit Platform →

Live on Play Store Store Listing →

FLUTTER FASTAPI AI_AGENTS

Legalight

AI-augmented legal processing architecture. Engineered secure system capabilities using proprietary FastAPI routines to parse long-context judicial briefs, extracting semantic entities and delivering contextual legal query outputs instantly.

INTELLIGENT DOCUMENTATION AGENTS

Confidential engagement — walkthrough available on request

I engineer software systems your business operates on.

Architecting workflows designed to minimize friction.

Native Execution

Enterprise Backbones

Workflow Automation

Systems designed to withstand friction.

High-Fidelity Operations

Resilient Synchronization

Contextual Intelligent Logic

Proven, live platforms.

Veristock SYSTEM_01

Serveflow SYSTEM_02

SouqNote SYSTEM_03

Arifget SYSTEM_04

Legalight

What it's like to work together.

Let's map out your project stability.