Software Development

.NET & Python Developer | Enterprise Automation · Data Platforms · AI Integration

תל אביב-יפו, ישראל

פרילנסר

צור קשר

אודותינו

I build production software that automates business workflows, connects systems, and turns complex data into practical tools people can actually use.
My background combines many years of enterprise development in an industrial environment with hands-on work in internal web systems, SQL-heavy applications, Windows Services, SAP-connected workflows, Excel/VBA automation, Python utilities, AI-assisted data applications, and modern automation platforms.
What makes my background different: 11 years embedded inside a
80-person aerospace manufacturer, owning internal systems end-to-end — from SAP integration and multi-threaded Windows Services to web portals and mobile apps. I know how enterprise software behaves under real operational pressure, and how to make it dependable long-term.

What I deliver:

🔹Enterprise Systems & Internal Portals
Business applications, internal websites, reporting portals, and workflow systems built to support real users and real operations.

🔹Business Process Automation
Replacing manual work with reliable software: scheduled jobs, validation workflows, file processing, reporting, Excel automation, and system-to-system integrations.

🔹Data Platforms & AI-Assisted Applications
Database-driven tools, reporting systems, and natural-language interfaces over business data, including NL-to-SQL and structured dashboards.

🔹Automation — n8n / Zapier / Google Apps Script
Building reliable automation workflows: n8n self-hosted pipelines, Zapier integrations, Google Apps Script for Sheets/Gmail/Drive automation. Connecting business systems, scheduling recurring jobs, automating document flows and notifications — replacing manual work with dependable software.

🔹Python, Excel/VBA & API Integration
Fast, practical solutions for data processing, automation, reports, file generation, and third-party integrations.

I work best on projects where business logic, databases, APIs, and reliable delivery matter more than flashy demos. My core stack includes C#, .NET, ASP.NET, SQL Server, Python, PostgreSQL, REST/SOAP APIs, Excel/VBA, and practical AI integration.

I bring a strong analytical foundation from an M.Sc. in Mathematics, plus earlier experience in C/C++, real-time systems, multithreading, and hardware-software integration.

My approach is simple: define the scope clearly, propose a realistic solution, and deliver clean, maintainable code that can survive beyond version 1.

Languages: Hebrew (native) · Russian (native) · English (professional)

שפות

רוסית

שפת אם

עברית

שליטה קרובה לשפת אם

אנגלית

שליטה טובה

תחומי התמחות

טכנולוגיה

Chatbots ו-AI Agents

End-to-end AI-powered applications: LLM integration (OpenAI / Claude / Gemini APIs), NL-to-SQL engines, AI-assisted document generation and reporting. Flagship: a financial platform where users ask questions in Hebrew or English — the system generates SQL via LLM, executes it, and returns structured results through interactive React dashboards.

תכנות ופיתוח תוכנה

.NET, C#, Dot Net, VB

Development of internal business systems, corporate portals, and database-driven applications using C#, .NET, and ASP.NET. Strong background in backend logic, complex forms, role-based workflows, Windows Services, reporting systems, IIS deployment, and integrations with SAP and external APIs. 18+ years, primarily in high-availability enterprise environments.

HTML5, CSS3, JavaScript

Front-end for internal portals, dashboards, and business web applications. Forms, tables, filtering, AJAX interactions, and practical UI connected to backend systems. Bootstrap, jQuery/DataTables for enterprise interfaces. TypeScript for type-safe, maintainable codebases.

Scripting

•Automation scripts and data collection workflows for websites, files, APIs, and repetitive operational tasks. Useful for ETL-style pipelines, reporting, cleanup, and feeding business systems with structured data.

•n8n: Lead Capture + CRM Automation.

DB - PostgreSQL

PostgreSQL for modern data platforms and AI-assisted querying. Schema design, advanced queries, stored procedures, optimization, SQLAlchemy and direct PSQL. Applied in: NL-to-SQL financial data platform alongside MS SQL Server.

DB - MSSQL, SQL Server

Extensive experience designing and maintaining SQL Server-based systems for operational and reporting needs. Complex queries, stored procedures, functions, triggers, performance tuning, and integration with SAP DB in hybrid ERP environments.

VBA, Office, Excel Programming

Advanced Excel and VBA for reporting, controlled data entry, validation, and process automation. Excel add-ins connecting SAP and SQL Server for non-technical operational staff. VB6 to .NET migration with preserved business logic. Also: Word, Access, Outlook automation. Integration with Israeli tax authority APIs (VAT allocation numbers, Hashavshevet).

Python

Python for automation, data processing, reporting, API integration, and AI-assisted workflows. Used for internal tools, scheduled jobs, file transformation, document generation (Pandas, openpyxl, python-docx), web scraping, and lightweight backend services (FastAPI/Flask). Also: Telegram bots, CLI tools, Google Apps Script.

פיתוח אפליקציות ל- Android

Android app development: TCP/IP communication apps, prototype-to-production delivery, real-time data exchange with backend systems. Experience with publishing and app store submission processes.

Node.JS

Backend and integration work for modern web applications, middleware, and API-connected services. Suitable for lightweight service layers, orchestration, and data flows between frontend, database, and external APIs.

פיתוח אלגוריתמים

Performance-critical algorithms where brute force is not viable. Two game AI engines using deliberately different approaches:
• Rendzu (40×40 board, C++): minimax with local candidate generation, heuristic pattern scoring, time-budget cutoff, difficulty scaling
• Corner the Blue (C# / .NET): exact win/loss classification via directed graph-walk; pre-classified anchors allow near-instant provably correct play
Core skill transfers to scheduling, routing, resource allocation, and decision engines. M.Sc. Mathematics.

React.js

Interactive front-end for data-heavy applications and dashboards. Functional components, Hooks, TypeScript, REST API integration, dynamic filtering and real-time updates. Used in: AI-powered financial data platform with NL query interface.

קצירת מידע, Data Scraping

Automation scripts and data collection for websites, files, APIs, and repetitive operational tasks. ETL-style pipelines, data cleanup, report automation, and feeding business systems with structured data. Python (BeautifulSoup, Selenium, Requests), VBA, Google Apps Script.

פיתוח אפליקציות לנייד

Cross-platform apps for production floor reporting and control (iOS/Android from shared C# codebase). Real-time data from SQL Server and SAP backends. Built for shop-floor use in manufacturing environments.

בניית אתרים

בניית אתרים פשוטים, עמודי נחיתה

Design and development of responsive landing pages and simple business websites. HTML/CSS/JavaScript with clean, conversion-oriented structure. Responsive across devices, integrated with contact forms and tracking tools.

נסיון תעסוקתי

אוגוסט 2025 - היום

Software Developer

Freelance Developer, Tel Aviv

🔹Present | Freelance Developer | Tel Aviv
Independent development focused on enterprise automation, data platforms, and AI-assisted business applications.
Flagship project: end-to-end financial data platform for Israeli investment products:
Users query in Hebrew/English → LLM generates SQL → live PostgreSQL → structured results in React dashboards
Stack: PostgreSQL · Python/FastAPI · React · OpenAI API · REST API
Additional: Python automation, Excel/VBA, Google Apps Script, n8n/Zapier workflows, Android apps, landing pages — data processing, report generation, workflow automation for various clients.

מאי 2014 - יוני 2025

Senior Software Developer

Mechano-Deen Ltd

Mechano-Deen Ltd · Petach Tikva · Aerospace parts manufacturer, 80+ employees
End-to-end ownership of internal enterprise software across all departments. Full SDLC: requirements → architecture → implementation → QA → production rollout → ongoing support.
SAP & ERP Integration:
Bidirectional sync: custom .NET systems ↔ SAP (PP + MM modules)
Complex SAP DB queries alongside MS SQL Server in hybrid environments
Scheduled Windows Services: multi-threaded, fault-tolerant overnight processing
Excel/VBA add-ins for operational staff: controlled data entry, validation, reporting
Impact: 40% reduction in data processing errors; significant cut in document handling time
Full-Stack Web & Internal Systems:
Multi-department portals: ASP.NET, C#, SQL Server, role-based auth, complex workflows
Reporting dashboards, VPN-connected environments, external integrations (SAP API, Google APIs)
Desktop, Services & Mobile:
Background automation services and desktop tools (C#, Python)
Cross-platform mobile apps for shop-floor reporting (.NET MAUI / Xamarin.Forms)
Financial management system for subsidiary: full accounting logic, multi-country compliance
Stack: C# · ASP.NET · MS SQL Server · SAP API/DB · VBA/Excel · Python · Windows Services · .NET MAUI · JavaScript · HTML/CSS

יוני 2006 - מאי 2010

Senior Software Developer

| Controp Ltd , Hod Hasharon

🔹Built real-time control software for an integrated electro-optical system in a defense/aerospace context. The system spanned multiple hardware components — sensors, stabilized rotating platforms, digital recorders, and monitoring subsystems — requiring tight synchronization across concurrent threads and heterogeneous communication protocols (TCP/IP, RS-232, RS-422). Image processing pipeline via Matrox library. Emphasis on reliability and deterministic behavior under operational conditions.
Stack: C/C++, VC++, Win32 API, MFC, OOP, DLL, multithreading.

פברואר 2004 - פברואר 2006

Software Developer

Project-Based Roles, Tel Aviv

🔹MySQL client-server exam bank system (C#, .NET)
🔹Accounting and finance database systems and automation utilities
🔹Algorithm development — two game AI engines

ינואר 2002 - ינואר 2004

Software Developer

Roseman Engineering , Tel Aviv

C/C++ development for gas station management systems: POS integration (Retalix), FTP-based data sync between terminals and central servers, Windows desktop tooling.

ינואר 1999 - ינואר 2001