Backend Engineer

I am a Backend Engineer with extensive experience in building scalable and reliable distributed backend systems. Over the past few years, I have worked on complex payment APIs, ensuring concurrency-safe database operations and structured logging to guarantee accurate and auditable financial transactions. I am passionate about diagnosing and resolving performance bottlenecks, as demonstrated by my success in addressing a significant production latency regression through root-cause analysis and targeted optimizations.

My expertise extends to provider integration analysis, where I author detailed functional and technical specifications to ensure seamless data transformations and edge-case handling across distributed payment flows. I am proficient in build automation pipelines, having contributed to reducing production release cycles significantly by optimizing CI/CD workflows.

I have experience working in Agile and Scrum environments, collaborating effectively with distributed remote teams using tools like Jira and Confluence. Additionally, I have worked as a Data Engineer on contract, processing and standardizing large datasets with NLP-assisted parsing and rule-based matching, delivering validated and well-documented data mappings.

During my academic tenure as a Research Assistant, I designed and maintained ETL pipelines for large-scale econometric research, handling terabytes of data and building statistical models using Python and Stata. I have also developed open-source projects that combine modern technologies such as Next.js, .NET 8, and GPT-based models to create advanced retrieval-augmented generation systems.

I am skilled in multiple programming languages and frameworks, including C#, Go, Python, TypeScript, ASP.NET Core, and gRPC. My database expertise covers MS SQL Server, MongoDB, PostgreSQL, and Redis, complemented by infrastructure knowledge in Docker, Git, and CI/CD pipelines. I am fluent in English and Russian, with intermediate proficiency in Ukrainian, and I am continuously seeking to expand my technical skills and contribute to impactful projects.