Open to opportunities

Serhii Mistota

@serhiimistota

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I build and modernise reliable insurance applications with C#, .NET, Azure, and Blazor.

Zimbabwe

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What I'm looking for

I'm looking to build reliable, maintainable software on collaborative teams that value pair programming, modernisation work, technical ownership and opportunities to grow through challenging live systems.

At Spark Data Systems, I build, modernise and support business-critical insurance applications using C#, .NET, Blazor, Web APIs, Microsoft Azure and SQL Server. I improved a critical stored procedure from approximately 20 minutes to 50 seconds and developed shared NuGet packages adopted across 10+ services.

I enjoy untangling complex production issues across distributed systems, from SQL Server and Azure Service Bus to Application Insights and Salesforce integrations. I modernise legacy ASP.NET Web Forms applications incrementally through .NET microservices, BFF APIs and Blazor while keeping live systems stable.

I'm also developing Mental Buddy, a safety-first AI wellbeing application built with .NET MAUI Blazor, Gemini API, Azure AI Language and MongoDB. I value pair programming, thoughtful technical decisions and mentoring others through real delivery work.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Spark Data Systems

Jun 2024 - Present (2 years 2 months)

Design, develop, and support features for business-critical insurance applications using C#, .NET, Blazor, Web APIs, Microsoft Azure, SQL Server, and T-SQL. Modernise legacy ASP.NET Web Forms applications and drive performance improvements, including optimising a stored procedure from 20 minutes to 50 seconds.