Looking for a job

Simon Eisenberg

@zenb_dev

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I build end-to-end web products, from ERP systems to GIS and edtech platforms.

Armenia

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What I'm looking for

I'm open to remote contracts worldwide where I can build web products end-to-end, from requirements and architecture through production deployment, particularly in edtech, ERP, and GIS.

I've built production web products for the Institute of Telecommunications and InterSELT, including a corporate GIS geoportal and an ERP system for around 100 employees. My work spans requirements, architecture, implementation, and deployment.

At InterSELT, I led the replacement of spreadsheet-based workflows with a React, Express, and PostgreSQL ERP. I started solo, led a team of 2–3 developers, and delivered JWT authentication, six-role RBAC, WebSocket updates, and a Python Telegram bot.

At the Institute of Telecommunications, I developed a geoportal that brings interactive maps, measurement tools, spatial-data upload and export, and a unified geospatial database interface together. I also led an incremental legacy-code rewrite and implemented audit logs and permission administration.

I've also built a commercial edtech platform with paying users, a 1,000+ question bank, courses, homework, video, scheduling, and Telegram integrations. My project work includes MVP research and development, Nextcloud migration of 700,000+ files, and production systems using React, Next.js, NestJS, PostgreSQL, and Docker.

Experience

Work history, roles, and key accomplishments

Current

Fullstack Developer

Current

Institute of Telecommunications

Aug 2024 - Present (2 years)

Developed a corporate geoportal with interactive maps, measurement catalog, and spatial data upload/export. Led incremental rewrite of legacy codebase from requirements through production deployment.

React OpenLayers Express PostgreSQL RBAC GIS

Lead Fullstack Developer

InterSELT

Jul 2022 - Feb 2025 (2 years 7 months)

Led ERP replacement for ~100 employees, eliminating Google Sheets workflows. Architected and built fullstack ERP with React, Express, PostgreSQL, JWT auth, RBAC, WebSocket updates, and Telegram bot.

React Express PostgreSQL JWT RBAC WebSockets Python Load Testing