HessherMD5 Md5

Senior .NET Developer and Solution Architect with 12+ years of experience building distributed back-end systems, high-load web applications, and enterprise architectures for government, banking, and industrial clients. Expert in C#/.NET Core, Python, microservices, DDD, and Clean Architecture.

Dual specialization: software engineering + information security (Secure SDLC, SIEM, risk management). Proficient in Python for security automation, data processing, scripting, and API integrations. Proven track record of taking systems from concept to production, including data modeling, C#/.NET Core and Python services, REST and real-time APIs, PostgreSQL optimization, and CI/CD pipelines.

AI-augmented developer using ChatGPT, Claude, GitHub Copilot, and Cursor daily for prototyping, code review, and architecture decisions.

Belorusneft-Neftekhimproekt | Jul 2023 – Jan 2024

• Built SUIS "Interactive Map" distributed system for 500+ gas stations from scratch:.NET Core microservices, ASP.NET Core REST API, real-time updates via SignalR.
• Designed PostgreSQL schema Code-First with EF Core; wrote C#/EF ETL to migrate and clean legacy MSSQL data, moving hot T-SQL logic to PL/pgSQL.
• Optimized heavy report and select queries by 40–50% using EXPLAIN ANALYZE, LINQ reshaping, and targeted indexing strategies.
• Implemented database- and application-level encryption, hardware-bound licensing with serial-key generation, and event-level RBAC.
• Integrated React/OpenLayers map frontend, containerized stack in Docker, set up GitLab CI/CD, and prototyped Ansible deployment playbooks.
• Connected system to corporate NEOSYNTEZ PLM platform via REST API for real-time data synchronization.

Postgraduate Studies (Aspirantura) — Mathematical and Instrumental Methods in Economics

Academy of Public Administration under the President of the Republic of Belarus | 2012–2017

Master's Degree — Theory and Methodology of Teaching and Education (Informatics)

Belarusian State Pedagogical University named after M. Tank | 2008–2010

Specialist Degree — Physics and Informatics

Belarusian State Pedagogical University named after M. Tank | 2003–2008