Николай

Nikolai Kovalenko​
.NET Backend Engineer
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PROFESSIONAL SUMMARY
Software Engineer with 5+ years of experience in the .NET ecosystem, specializing in backend development,
microservices, and databases. Currently working as part of a Microsoft engineering team with hands-on experience
in CI/CD, deployment automation, and DevOps practices.​
Experienced in both startup environments and high-load fintech systems. Strong background in database design,
query optimization, and scalable architecture. Developed and delivered multiple applications and services from
scratch, from architecture to production deployment.

SKILLS
Languages: English (B2), Ukrainian (Native), Russian (Native)​
Programming languages:: C#, SQL, JavaScript, TypeScript, PHP, PowerShell​
Frameworks: ASP.NET Core, .NET Framework, Angular​
Databases: Microsoft SQL Server, PostgreSQL, MySQL, Redis​
ORM & Data Access: Entity Framework Core, Dapper​
Messaging & Distributed Systems: RabbitMQ, Kafka, MassTransit​
Cloud & DevOps: Azure, Azure DevOps, AWS, Docker, Kubernetes, CI/CD​
Observability & Monitoring: Grafana, Elasticsearch​
AI & Automation: AI Skills Development, Prompt Engineering, LLM-Based Workflow Automation, AI-Assisted
Software Development​
Developer Tools: Git, Rider, Visual Studio Code, Postman​
Architecture & Design: Microservices, Modular Monolith, Clean Architecture, Domain-Driven Design (DDD), Vertical
Slice Architecture, CQRS, Event-Driven Architecture

WORK EXPERIENCE
Software Development Engineer​ September 2025 – Present
AKVELON (client: Microsoft) ​ Remote
●​ Designed and maintained deployment validation workflows within CI/CD pipelines
●​ Worked with Microsoft internal build and packaging tooling (VPack, Razzle)
●​ Designed, developed, and optimized AI skills that automated repetitive engineering workflows, reducing
manual effort and improving operational efficiency
.Net developer​ July 2024 – September 2025
XPaid ​ Remote
●​ Led partner calls to gather integration requirements, negotiate conditions, and align on missing methods and
workflows
●​ Developed financial microservices from scratch
●​ Designed scalable microservice architecture and defined technical solutions for new financial services and
integrations
.Net developer​ June 2022 – July 2024
EasyPay​ Remote
●​ Developed and maintained high-load banking services in the fintech domain
●​ Designed and optimized database structures, queries, and stored procedures to improve system
performance
●​ Refactored and modernized legacy applications, migrating services from .NET Framework to .NET Core
.Net and php full stack developer​ December 2020 – June 2022
Petrykivka​ Remote
●​ Full-stack development with .NET and PHP
●​ Independently designed and developed small-scale applications​
Key Achievements
●​ Designed and delivered 10+ production applications, services, and integrations from architecture design
through deployment and support
●​ Reduced execution time of critical database operations by up to 50% through query optimization, indexing
strategies, and schema improvements
●​ Designed reusable libraries and shared components adopted across multiple projects, reducing code
duplication and accelerating development
●​ Participated in architecture design and technical decision-making for distributed systems, APIs, and
integration platforms
●​ Developed high-load fintech services processing business-critical financial operations
●​ Automated engineering workflows using AI-powered solutions, reducing manual effort and improving
developer productivity
​
EDUCATION
Master of Software Engineering​ 2022
National University Of Trade And Economics ​ Kyiv

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