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.NET Developer
- City of residence:
- Lviv
- Ready to work:
- Remote
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KYRYLO BUBLIKOV
C# SOFTWARE ENGINEER
Ukraine / Relocate • [open contact info ](look above in the "contact info" section)
www.linkedin.com
SUMMARY
Results-driven .NET Software Engineer with 4.5+ years of commercial experience designing,
building, and scaling high-throughput enterprise systems, cloud platforms, and SaaS products
using .NET 8/9/10, C#, PostgreSQL/MS SQL. Demonstrated expertise in domain core logic design,
event-driven messaging (Apache Kafka, RabbitMQ), and real-time processing. Track record of
building greenfield SaaS applications from scratch to MVP and integrating production-grade
AI/OCR (Azure OpenAI) solutions to deliver measurable business impact. Skilled in DevOps
practices (Docker, Kubernetes, CI/CD pipelines), legacy platform modernization, and high-coverage
automated testing (xUnit, Moq)
WORK EXPERIENCE
Digitum | Middle+ C# Developer October, 2025 – September, 2026 (11 mos)
Engineered the full Core Gamification Engine from scratch to MVP for a multi-tenant Banking
SaaS platform using .NET 9, C#, and PostgreSQL, designed to handle millions of end-users
across multiple banking instances.
Implemented complex domain logic of the core system, and real-time analytics using Clean
architecture and integrated Apache Kafka, RabbitMQ, and Redis for asynchronous event
handling, background processing, and high-performance caching.
Optimized data fetching and eager-loading query strategies in EF Core, significantly reducing
database execution overhead for heavy queries.
Maintained high code reliability by covering 80% of core methods with Unit Tests (xUnit, Moq)
and establishing comprehensive Integration Testing suites for critical workflow APIs.
Pentagon 2000 Software Inc | C# / Delphi Developer Aug, 2024 – Aug, 2025 (1 yr)
Contributed to an enterprise-grade ERP system tailored for Aerospace, Defense, and
Automotive sectors.
Modernized complex legacy domain architecture, dedicating ~80% of time to rewriting legacy
Delphi modules into modern C# WebClient solutions according to technical specifications.
Maintained and extended existing Delphi legacy codebase while ensuring seamless data
consistency across system migrations.
Polar Tech Lab LLC | ASP.NET / Blazor Developer Jul, 2023 – May, 2024 (10 mos)
Architected an intelligent OCR/AI system for automated processing and structuring of scanned
financial documents with handwritten notes.
Integrated Azure OpenAI (GPT-3.5/GPT-4) to handle edge-case handwritten text parsing,
achieving up to a 30% increase in data extraction accuracy.
Implemented real-time processing feedback mechanisms utilizing ASP.NET Core, SignalR, and
WebSockets.
Utilized Azure Service Bus, RabbitMQ/Kafka, Azure Blob Storage, and Docker to build a robust
asynchronous image processing pipeline.
Lake Of Knowledge | .NET Software Engineer Sep, 2022 – Apr, 2023 (8 mos)
Led backend development for a greenfield EdTech platform MVP using .NET 7, EF Core 7, and
Azure.
Designed microservices architecture from scratch, leveraging Apache Kafka for inter-service
communication and building scalable REST APIs.
Lumighost Ltd | Full-Stack .NET Developer May, 2022 – Jan, 2023 (9 mos)
Migrated Node.js legacy backend systems to .NET 6, developing REST APIs for Play-to-Earn
(P2E) gaming architectures and Web3 integrations.
Solely engineered a video streaming demo platform, integrating Wowza Streaming Engine
services with .NET backend and Blazor frontend.
Freelance | Full-Stack .NET Developer Jun, 2021 – Mar, 2023
Developed custom e-commerce and internal CRM software using .NET Core 5/7, MSSQL
Server, and IIS deployment.
SKILLS
Languages & Frameworks: C#, .NET (5–9), ASP.NET Core, Web API, Entity Framework Core,
Blazor, LINQ, Delphi
Architecture & Patterns: Clean Architecture, Domain-Driven Design (DDD), CQRS, Event-Driven
Architecture, Microservices, REST APIs, SOLID
Messaging & Async Processing: Apache Kafka, RabbitMQ, Azure Service Bus, SignalR,
WebSockets, Quartz.NET
Databases & Caching: PostgreSQL, MS SQL Server, Redis, MySQL
Cloud, DevOps & Infrastructure: Docker, Docker Compose, Kubernetes (K8s), Azure (App
Services, Blob Storage, Service Bus, AI Computer Vision, OCR), AWS (S3, EC2, Lambda), CI/CD
(Azure DevOps, GitHub Actions), IIS
Testing & Quality Assurance: Unit Testing (xUnit), Integration Testing, Moq, Code Refactoring
EDUCATION
National Technical University of Ukraine "Kyiv Polytechnic Institute"
Master of Software & Information Systems Engineering | Graduated: Dec, 2025
Private higher educational institution “IT STEP University”
Bachelor of Computer Science | Graduated: Jun, 2024
LANGUAGES
Ukrainian (Fluent)
English (Upper-Intermediate)
German (Elementary)
C# SOFTWARE ENGINEER
Ukraine / Relocate • [
www.linkedin.com
SUMMARY
Results-driven .NET Software Engineer with 4.5+ years of commercial experience designing,
building, and scaling high-throughput enterprise systems, cloud platforms, and SaaS products
using .NET 8/9/10, C#, PostgreSQL/MS SQL. Demonstrated expertise in domain core logic design,
event-driven messaging (Apache Kafka, RabbitMQ), and real-time processing. Track record of
building greenfield SaaS applications from scratch to MVP and integrating production-grade
AI/OCR (Azure OpenAI) solutions to deliver measurable business impact. Skilled in DevOps
practices (Docker, Kubernetes, CI/CD pipelines), legacy platform modernization, and high-coverage
automated testing (xUnit, Moq)
WORK EXPERIENCE
Digitum | Middle+ C# Developer October, 2025 – September, 2026 (11 mos)
Engineered the full Core Gamification Engine from scratch to MVP for a multi-tenant Banking
SaaS platform using .NET 9, C#, and PostgreSQL, designed to handle millions of end-users
across multiple banking instances.
Implemented complex domain logic of the core system, and real-time analytics using Clean
architecture and integrated Apache Kafka, RabbitMQ, and Redis for asynchronous event
handling, background processing, and high-performance caching.
Optimized data fetching and eager-loading query strategies in EF Core, significantly reducing
database execution overhead for heavy queries.
Maintained high code reliability by covering 80% of core methods with Unit Tests (xUnit, Moq)
and establishing comprehensive Integration Testing suites for critical workflow APIs.
Pentagon 2000 Software Inc | C# / Delphi Developer Aug, 2024 – Aug, 2025 (1 yr)
Contributed to an enterprise-grade ERP system tailored for Aerospace, Defense, and
Automotive sectors.
Modernized complex legacy domain architecture, dedicating ~80% of time to rewriting legacy
Delphi modules into modern C# WebClient solutions according to technical specifications.
Maintained and extended existing Delphi legacy codebase while ensuring seamless data
consistency across system migrations.
Polar Tech Lab LLC | ASP.NET / Blazor Developer Jul, 2023 – May, 2024 (10 mos)
Architected an intelligent OCR/AI system for automated processing and structuring of scanned
financial documents with handwritten notes.
Integrated Azure OpenAI (GPT-3.5/GPT-4) to handle edge-case handwritten text parsing,
achieving up to a 30% increase in data extraction accuracy.
Implemented real-time processing feedback mechanisms utilizing ASP.NET Core, SignalR, and
WebSockets.
Utilized Azure Service Bus, RabbitMQ/Kafka, Azure Blob Storage, and Docker to build a robust
asynchronous image processing pipeline.
Lake Of Knowledge | .NET Software Engineer Sep, 2022 – Apr, 2023 (8 mos)
Led backend development for a greenfield EdTech platform MVP using .NET 7, EF Core 7, and
Azure.
Designed microservices architecture from scratch, leveraging Apache Kafka for inter-service
communication and building scalable REST APIs.
Lumighost Ltd | Full-Stack .NET Developer May, 2022 – Jan, 2023 (9 mos)
Migrated Node.js legacy backend systems to .NET 6, developing REST APIs for Play-to-Earn
(P2E) gaming architectures and Web3 integrations.
Solely engineered a video streaming demo platform, integrating Wowza Streaming Engine
services with .NET backend and Blazor frontend.
Freelance | Full-Stack .NET Developer Jun, 2021 – Mar, 2023
Developed custom e-commerce and internal CRM software using .NET Core 5/7, MSSQL
Server, and IIS deployment.
SKILLS
Languages & Frameworks: C#, .NET (5–9), ASP.NET Core, Web API, Entity Framework Core,
Blazor, LINQ, Delphi
Architecture & Patterns: Clean Architecture, Domain-Driven Design (DDD), CQRS, Event-Driven
Architecture, Microservices, REST APIs, SOLID
Messaging & Async Processing: Apache Kafka, RabbitMQ, Azure Service Bus, SignalR,
WebSockets, Quartz.NET
Databases & Caching: PostgreSQL, MS SQL Server, Redis, MySQL
Cloud, DevOps & Infrastructure: Docker, Docker Compose, Kubernetes (K8s), Azure (App
Services, Blob Storage, Service Bus, AI Computer Vision, OCR), AWS (S3, EC2, Lambda), CI/CD
(Azure DevOps, GitHub Actions), IIS
Testing & Quality Assurance: Unit Testing (xUnit), Integration Testing, Moq, Code Refactoring
EDUCATION
National Technical University of Ukraine "Kyiv Polytechnic Institute"
Master of Software & Information Systems Engineering | Graduated: Dec, 2025
Private higher educational institution “IT STEP University”
Bachelor of Computer Science | Graduated: Jun, 2024
LANGUAGES
Ukrainian (Fluent)
English (Upper-Intermediate)
German (Elementary)
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The candidate's resume is posted at https://www.work.ua/resumes/14753365/