רפאל מישיאקוב

Senior Software Developer

תל אביב-יפו, ישראל

פרילנסר

צור קשר

אודותינו

About Us
Senior Software Developer (+ years of experience) | Enterprise Systems Automation and Integration (.NET, C++/Win, Python, VBA, Google Apps Script)
I am a senior software developer with 18+ years of professional experience. My background is rooted in complex industrial and corporate environments, where accuracy, stability, and scalability are essential requirements. With a Master’s degree in Mathematics, I combine analytical thinking with high-performance software engineering.
Main Areas of Specialization:
• End-to-End Corporate Solutions: Expert development of reliable corporate portals, backend services, and APIs using the .NET ecosystem (C#: Windows Services, Desktop and Mobile apps, ASP.NET WebForms).
• High-Performance Native Windows Development: C/C++ and Win API for real-time and industrial software applications.
• Automation and Integration: Implementation of webhooks, AI API integrations, workflow automation (e.g., nn), and Google Apps Script pipelines.
• Python Script Development: Data processing (Pandas), document processing (Office/PDF), web scraping, and custom automation utilities.

My Work Approach:
I follow a structured process: Defining the scope of work → Providing a clear cost estimate → Project execution with verification, readable code, and brief handover instructions. You will know exactly what you are getting.
I am open to both small tasks (a few hours/days) and larger projects (weeks/months).
Send me your goal and current configuration, and I will propose the fastest path to a stable result.

תחומי התמחות

תכנות ופיתוח תוכנה

250 ₪ לשעה

.NET, C#, Dot Net, VB

Senior C#/.NET developer (+10 years focused in .NET) building and maintaining production systems across legacy .NET Framework and modern .NET (.NET 8 LTS).
What I deliver:
• Web & APIs: ASP.NET / ASP.NET Core apps, auth (authentication/authorization), business workflows
• Desktop & Services: WinForms + multithreaded Windows Services for near-real-time processing
• Integrations: SQL Server + SAP APIs,
• Performance & reliability: async/await, profiling, deadlock/crash investigations, safe refactors (avoid blocking async calls)
• Ops: IIS configuration, deployment troubleshooting, production bug-fixing

ASP.NET

• Corporate Portals: Development and support of internal portals or connected via VPN using ASP.NET WebForms, including forms, and complex authentication.
• Full-Cycle Support: Management of server-side logic, database-driven functionality, and IIS hosting/deployment troubleshooting.
• DB/service integrations; async/await best practices (no deadlocks)

C, C++

• Senior Systems Developer: 8+ years in Software Engineering with a heavy focus on high-performance native Windows software where timing, stability, and correctness are critical.
• Core Expertise: OOD, complex data structures, algorithmic optimization.
Windows architecture: Win32 API, MFC, Qt; multithreading; IPC.
Hardware integration: electro-optical sensors and real-time recorders via TCP/IP (TCP/UDP) and serial (RS-232/RS-422).
• Windows Architecture: Win32 API, MFC, Qt; multithreading; IPC.
• Hardware Integration: electro-optical sensors and real-time recorders via TCP/IP (TCP/UDP) and serial (RS-232/RS-422).

HTML5, CSS3, JavaScript

• Responsive UI: Building practical frontends with a focus on predictable behavior and AJAX-based asynchronous requests.
• Integration: Clean integration of interactive pages with ASP.NET backend systems.

Scripting

Scripting (Python)
• Automation: Turning repetitive operations into repeatable automation, including file transformations, scheduled jobs, and system "glue".
• Data Processing: Specialized in web scraping, report generation,
API calls, CSV/Excel cleanup, processing Word files and regex-based parsing.

מתכנת, פיתוח תוכנה כללי

Programmer, Software Development
Software engineer with over 18 years of hands-on development experience in virtually all fields.
Algorithms, server-side development, databases, experience developing complex systems, managing teams, and planning software architecture.
Documented writing style in compliance with generally accepted standards.

DB - MySQL

• Schema Design: Designing normalized relational schemas, constraints, and reporting queries for high-volume datasets.

DB - MSSQL, SQL Server

• Integration: Seamless SQL Server integration within excel and C#/.NET projects for web, desktop, and mobile applications.

VBA, Office, Excel Programming

VBA, Office, Excel Programming
• One-click process automation (validation + guardrails)
• Custom Excel tools: macros, UserForms, UDFs
• Reporting engines (refresh + export to Excel/PDF)
• Multi-file consolidation (CSV/TXT/XML/Excel) → clean final report
• Automated Word (.docx) document generation with consistent formatting

Python

פיתוח אפליקציות ל- Android

• Typical tasks: Developing real-time reporting apps
using .NET MAUI and Xamarin.Forms.

מפתחי Front-end

experience including 9 years in the development of the front end with or without state management.

מפתחי Back-end

• End-to-End Delivery: Capable of handling the entire pipeline from database and backend to UI and deployment.
• Clean Architecture: Building production-ready web portals and desktop services with a focus on data correctness and reliable integrations.

נסיון תעסוקתי

יוני 2014 - יולי 2025

Senior Software Developer (Full-Stack / Automation)

Mechano-Deen Ltd , Petach Tikva

• Built and maintained internal corporate web apps/portals (C#, ASP.NET Web Forms, SQL Server) used by multiple departments.
• Automation of business processes has been implemented, which has significantly reduced the number of errors that occur during manual processing and the processing time.
• Developed Windows services + Python scripts to automate document flow, accounting, and logistics processes.
• Integrated with SQL Server, SAP DB / SAP API, and Excel/VBA add-ins for reporting and controlled data entry.
• Delivered cross-platform mobile apps for production reporting/control (.NET MAUI / Xamarin).
• Worked full SDLC: requirements → architecture → implementation → testing/QA → production rollout.

ספטמבר 2006 - מאי 2010

Software Engineer (C++/Win32)

| Controp Ltd , Hod Hasharon

• End-to-end development of software for monitoring/controlling an electro‑optical system (sensors, recorders, rotating platforms).
• Multithreaded Windows development (C++/Win32), DLLs, and image/video processing; close HW/SW synchronization in interdisciplinary teams.

ינואר 2003 - פברואר 2006

Software Developer

Freelance S, Tel Aviv

• Developed a MySQL-based client‑server 'Exam Bank' system for managing questions and generating exams.
• Created accounting/finance databases and automation utilities.
• Implemented Minimax algorithms (limited-depth search + heuristics) for combinatorial games in C/C++.

ינואר 2002 - ינואר 2003