Катерина

KATERYNA SYDORENKO
Full Stack .NET Developer

[open contact info](look above in the "contact info" section) | LinkedIn Profile | GitHub Profile

SUMMARY
Full Stack .NET Developer with 2+ years of commercial experience building reliable
web applications across backend and frontend. Takes features end to end in Scrum
teams: from clarifying requirements with stakeholders through design, coding, testing
and debugging to production release. Focuses on maintainable, well-structured code,
stable and observable systems, and fast response to production issues. English:
Upper-Intermediate (B2).

TECHNICAL SKILLS
Backend: .NET / C#, ASP.NET Core, Web API / REST API, Entity Framework Core, Dapper,
ADO.NET, SignalR, Apache Kafka

Frontend: HTML, CSS, SCSS, JavaScript, TypeScript, React, Next.js, Redux Toolkit

Databases: PostgreSQL, MS SQL Server, Redis, MongoDB, Neo4j, Azure Blob Storage

Cloud/DevOps: Docker, GitHub Actions, CI/CD, DigitalOcean, Hetzner, Heroku

Testing: Unit testing, Integration testing, xUnit, Testcontainers, k6

Practices & Tools: OOP, SOLID, KISS, DRY, Microservices, Scrum, Kanban, Git, Jira, Trello

AI Tools: Claude Code, GitHub Copilot, Skills, MCP

WORK EXPERIENCE
Full Stack .NET Developer | InOpter & AvocadoAI | Aug 2024 – Aug 2026

Tech stack: C#, ASP.NET Core, Entity Framework, PostgreSQL, React, TypeScript, Redux
Toolkit, Docker, DigitalOcean

Developed and implemented new back-end and front-end functionality and supported
existing functionality at all levels for a restaurant operations and inventory analytics
platform using C#, ASP.NET Core, React and TypeScript.
Created REST APIs with ASP.NET Core Web API, Entity Framework and PostgreSQL, and
optimized SQL queries to improve the performance of data-heavy operations.
Built front-end features in React, TypeScript, JavaScript, HTML and CSS, including real-

time dashboards and long-running process handling.
Implemented integrations with third-party systems and services in collaboration with
external teams.
Designed and deployed a dedicated microservice for exception logging and automated
alert notifications, eliminating silent failures and making reaction to critical issues near-
immediate.
Collaborated with stakeholders on requirements analysis and interface planning within a
Scrum team, using a Git workflow with branching, merging and rebasing.

PROJECTS
SkillMap (university project) | Full Stack Developer | 2026 | GitHub: SkillMap

Gathered requirements, designed the system architecture and built a full-stack interactive
learning roadmap platform with an ASP.NET Core back end and a real-time graph editor
on the front end.
Implemented real-time state updates with SignalR and event-driven validation with
Apache Kafka for low-latency processing.
Designed a polyglot persistence layer with Neo4j for graph-based roadmap structures
and PostgreSQL for relational data.
Covered the backend with unit and integration tests using xUnit and Testcontainers.
Set up automated CI/CD pipelines for deployment to a Hetzner cloud server.

EDUCATION
Master of Software Engineering | Kharkiv National University of Radio Electronics | 2026 –
2028

Bachelor of Software Engineering | Kharkiv National University of Radio Electronics | 2022 –
2026

LANGUAGES
Ukrainian: Native

English: Upper-Intermediate (B2), DET Certificate