Ждан

Zhdan Cherniavskyi
Senior .NET Full-Stack Software Engineer · Team Lead
Kyiv, Ukraine · [open contact info](look above in the "contact info" section) · [open contact info](look above in the "contact info" section) · [open contact info](look above in the "contact info" section)

SUMMARY
Senior .NET engineer with 6 years of commercial experience building ASP.NET Core Web APIs and Angular front-ends, most recently
leading a development team. Owns features end to end — from REST API design and data modelling to Docker-based CI/CD and
production support on AWS. Strong track record in integrations: POS hardware, fiscal and payment APIs, Microsoft Teams / Graph,
message queues. Teaches .NET at university, mentors developers and runs technical interviews.

EXPERIENCE
Team Lead · Stellar Logic Feb 2026 – Aug 2026
• Led a cross-functional development team: planning, task breakdown, code reviews, technical interviews and mentoring of junior
developers.
• Architected and delivered a POS desktop application (Electron + ASP.NET Core Web API) with fiscal receipt registration and
integration of hardware devices over COM/serial port (receipt printers, scanners, payment terminals).
• Owned CI/CD: Azure DevOps pipelines, Docker images, health checks and monitoring across test and production environments.
Senior Full-Stack .NET Engineer · Stellar Logic — ESG Platform Jul 2024 – Feb 2026
• Core developer of an ESG data-collection and reporting platform (ASP.NET Core Web API on .NET 8, MongoDB, Redis, Angular):
multi-country / multi-company data tasks, scopes and categories, master reports with Excel export.
• Built background services for scheduled third-party data integrations, automated ingestion into master reports, task recalculation
and notifications (e-mail + Microsoft Teams bot via Bot Framework / Graph API).
• Developed a related pricing service using Clean Architecture, MediatR and Mapster; documented APIs with Swagger/OpenAPI.
• Observability and delivery: Serilog structured logging, health checks, Docker images and Azure DevOps pipelines to AWS; covered
business logic with xUnit tests.
Senior .NET Full-Stack Software Engineer · NDA project Sep 2023 – Jun 2025
• Designed and implemented REST APIs in .NET Core; extended an existing Angular application.
• Worked directly with the product owner on requirements; kept high xUnit / Moq coverage, performed code reviews and
refactoring.
.NET Full-Stack Developer · EPAM Systems May 2021 – Nov 2023
• Designed and implemented REST APIs in .NET Core as part of a complex multi-team system.
• Performed DevOps tasks on AWS (Lambda, SQS, SNS, Step Functions, CloudWatch) with infrastructure as code in Terraform and
YAML pipelines (GitHub / GitLab CI).
• Extended Angular application functionality; wrote technical documentation; built an analytical tool for log analysis with Excel
output.
• Wrote xUnit / Moq tests, performed code reviews, negotiated requirements with the product owner.
Junior .NET Developer · EPAM Systems Jun 2020 – Apr 2021
• Developed REST APIs in .NET Core for an authentication and authorization service; wrote xUnit / Moq tests, conducted demo
sessions.
Senior Lecturer (.NET) · State University of Information & Communication Technologies Sep 2023 – Present
• Teach C# / .NET and software architecture; designed a course on software architecture, microservices, API security and
containerization.

SKILLS
Backend C#, .NET 6–9, ASP.NET Core Web API / MVC, Clean Architecture, MediatR, Mapster, EF Core, SignalR, REST,
Swagger/OpenAPI
Data MS SQL Server, MongoDB, Redis
Cloud & DevOps AWS (Lambda, SQS, SNS, Step Functions, CloudWatch), Azure (Graph API, Bot Framework), Docker,
Terraform, Azure DevOps, GitHub / GitLab CI, YAML, Graylog
Frontend Angular, TypeScript, RxJS, Electron, HTML & CSS
Other RabbitMQ, Kafka, xUnit / NUnit / Moq, Microservices, ERP implementations, COM / serial-port hardware
integration, Arduino, Git, AI-assisted development

EDUCATION & CERTIFICATIONS
M.Sc. Computer Software Engineering · State University of Information and Communication Technologies 2023 – 2025
B.Sc. Software Engineering · State University of Telecommunications (same university, former name) 2019 – 2023
Certifications: ASP.NET Core Developer · Introduction to Cybersecurity · Binance Academy University Outreach
Languages: English — B2 · Ukrainian — native · Russian — native