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YAROSLAV MAROCHKIN
Senior .NET Developer
Remote or Kyiv, Ukraine ● [open contact info](look above in the "contact info" section) ● [open contact info](look above in the "contact info" section)

Skills SUMMARY
.NET 8/ASP.NET Core, REST APIs, EF, Dapper Senior .NET Developer with 18+
PostgreSQL, MS SQL Server, MongoDB years of experience delivering
Kafka, Redis enterprise-scale solutions,
Microservices, scallable back-end architectures, background processing
evolving from Windows
Tools & Practices desktop applications to high-
Docker, Prometheus, Grafana, Git, Jira, Confluence, Technical documentation load back-end systems.
Additional Proven track record of
.NET Framework, WinForms, WPF designing and building scalable,
jQuery, Bootstrap fault-tolerant architectures
with a strong focus on database
Old skills performance, data consistency,
C/C++, Win32 API, multithreading, TCP/IP, Windows Services; COM, Wix, Java (Android), and system reliability.
PHP 5, embedded development, Atmel AVR, JTAG
Background as Team Lead and
Professional experience system/business analyst
.NET Back-End Developer ● 2023 – Present ● HELSI enables effective translation of
business needs into technical
• Designed and developed high-load back-end systems for data management and analytics
solutions, improving
• Defined and implemented system architecture (microservices, event-driven), ensuring scalability and fault development efficiency and
tolerance product quality.
• Contributed to business/system analysis, translating requirements into efficient technical solutions
Experienced in full product
• Built and evolved master data solutions, improving consistency across distributed services lifecycle — from architecture
• Optimized database workload (query tuning, partitioning), increasing throughput and reducing system load and development to
• Developed integration and data processing services, including monitoring and observability (OpenTelemetry) to deployment, support, and
ensure system stability under load evolution of long-term systems.
• Delivered full-stack features (ASP.NET), including management interfaces for configuration, control, and
analytics of complex business processes SOFT SKILLS
.NET Developer ● 2020 – 2023 ● Self-employed
• Analytical mindset and
problem-solving approach
• Developed database synchronization solution, automating DB schema updates reducing release time, errors,
and manual deployment efforts • Ability to translate business
• Built R&D platform for business process automation, exploring flexible architecture between low-code and full- needs into technical
code approaches solutions
• Gained hands-on experience in product design decisions and technical trade-offs • High ownership and
responsibility for delivered
Team Lead & Project Director ● 2011 – 2020 ● dreamteam.ua
(same project as before + dev on-demand direction as a project director)
solutions.
• Led development of low-code ERP platform core, system integrations, platform-based CRM Applications • Strong communication and
• Implemented full functional web interface alongside desktop solution with cross-browser support collaboration skills
• Designed and implemented business process execution system, enabling distributed background processing • Team-oriented, supportive,
• Built deployment and DB updates automation, significantly reducing release time and errors and knowledge-sharing
• Delivered multiple commercial solutions for mobile distribution and merchandising (web, desktop, mobile) EDUCATION
Senior Software Developer ● 2008 – 2011 ● SoftIrbis Master of Science in
• Led development of low-code ERP platform core Electronics
• Introduced web interface alongside desktop solution National Technical University of
• Designed integration modules and interfaces for standartized third-parties data exchange Ukraine "Igor Sikorsky Kyiv
Polytechnic Institute" (KPI)
Software Developer ● 2005 – 2008 ● SoftIrbis
2000 – 2006
• Development of low-code ERP core components
• Optimized critical components via C++/COM, improving performance of core modules for 15% LANGUAGES
• Developed data exchange and communication components (POP3/SMTP, TCP/IP) English – Upper Intermediate
• Implemented copy protection system, enhancing product security Ukrainian – Native
Russian – Fluent
Embedded Software Developer ● 2003 – 2006 ● Kyiv Polytechnic Institute
• Developed video-based measurement system for hazardous environments HOBBIES
• Built hardware testing modules for industrial equipment Hiking, skiing, ballroom dancing