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.NET engineer
Backend Lead

I build complete systems on .NET and lead backend development. I use AI and Codex agent pipelines to deliver under tight deadlines β€” from architecture and code to deployment and observability.

My foundation: 14+ years of engineering, cross-platform desktop products, rendering optimization, and technical leadership.

  • .NET / C#
  • Backend Lead
  • AI / Codex
Sergey Mikolaitis

Sergey Mikolaitis

From architecture to production.

years of .NET engineering
14+
Backend, desktop, and performance
years as a team lead
8+
Since July 2018
people in the team I led
10–12
Engineering, QA, and product together
  1. 2012–2014TOP Computer Academy.NET Teacher
  2. 2012–2015FlexBricks.NET Developer
  3. 2013–2020LaitisFounder & Developer
  4. 2016–2017Arkadium.NET Developer / PreSenior .NET Developer
  5. 2018–2019360boundSenior β†’ Lead .NET Developer
  6. 2019–2026Icons8Team Lead & Product Owner
  7. 2026 β†’MOODFORGE StudioLead Backend Developer

2026

9,940 commits+12,839,024βˆ’5,078,690

LessMore

My current focus is backend engineering: ASP.NET, data, real-time communication, and complete systems built with Codex agent pipelines. That builds on years of desktop engineering, performance work, and hands-on leadership.

  • C#Core strengths
  • .NET 6+Core strengths
  • ASP.NETCore strengths
  • Entity FrameworkCore strengths
  • SignalRCore strengths
  • PostgreSQLCore strengths
  • DockerCore strengths
  • CI/CDCore strengths
  • CodexCore strengths
  • AvaloniaUICore strengths
  • WPFCore strengths
  • MVVMCore strengths
  • Performance TuningCore strengths
  • Zero-Allocation OptimizationCore strengths
  • MultithreadingCore strengths
  • Concurrency DebuggingCore strengths
  • WebSocketsCore strengths
  • LINQCore strengths
  • TPLCore strengths
  • JSONCore strengths
  • SVGCore strengths
  • XMLCore strengths
  • SkiaCore strengths
  • Clean CodeCore strengths
  • RefactoringCore strengths
  • MsSqlStrong working knowledge
  • SqliteStrong working knowledge
  • LiteDBStrong working knowledge
  • S3Strong working knowledge
  • CDNStrong working knowledge
  • DNSStrong working knowledge
  • GitStrong working knowledge
  • LinuxStrong working knowledge
  • MacOSStrong working knowledge
  • RESTStrong working knowledge
  • Memory Dump AnalysisStrong working knowledge
  • OpenCodeStrong working knowledge
  • LLMStrong working knowledge
  • MCPStrong working knowledge
  • MsStoreStrong working knowledge
  • AppStoreStrong working knowledge
  • GrafanaStrong working knowledge
  • PrometheusStrong working knowledge
  • ScrumLeadership and product
  • AgileLeadership and product
  • Code ReviewLeadership and product
  • Team LeadershipLeadership and product
  • Product OwnershipLeadership and product
  • Decision-MakingLeadership and product
  • Strategic VisionLeadership and product
  • Development Process DesignLeadership and product
  • People ManagementLeadership and product
  • Team ManagementLeadership and product
  • Technical DocumentationLeadership and product
  • Product Quality OwnershipLeadership and product
  • Requirements ManagementLeadership and product
  • Technical Debt ManagementLeadership and product
  • AWSAdditional experience
  • ProtobufAdditional experience
  • Objective-CAdditional experience
  • WASMAdditional experience
  • PipesAdditional experience
  • WinAPIAdditional experience
  • ShadersAdditional experience
  • NuGetAdditional experience
  • NginxAdditional experience
  • JSEarlier experience
  • HTMLEarlier experience
  • CSSEarlier experience
  • PHPEarlier experience
  • SQLEarlier experience
  • SharepointEarlier experience
  • OracleEarlier experience
  • GraphQLEarlier experience
  • FFMPEGEarlier experience
  • VLCEarlier experience
  • OpenGLEarlier experience
  • DirectXEarlier experience
  • CEarlier experience
  • C++Earlier experience
  • WCFEarlier experience
  • ADO.NETEarlier experience
  • WinFormsEarlier experience
  • UWPEarlier experience
  • IISEarlier experience
  • LuaEarlier experience
  • JavaEarlier experience
  • SOAPEarlier experience
  • Apache KafkaFamiliar technologies, no production experience
  • ClickHouseFamiliar technologies, no production experience
  • RabbitMQFamiliar technologies, no production experience
  • MongoDBFamiliar technologies, no production experience
  • gRPCFamiliar technologies, no production experience
  • KubernetesFamiliar technologies, no production experience

Systems built. Products shipped.

Current backend work and the desktop products that shaped my engineering. Architecture, performance, and delivery in practice.

Backend Lead Β· Jul 2026–Present

MOODFORGE Studio

A complete game backend, built under tight deadlines.

Built the authentication server, game meta-server, markets, chat, Unity instance orchestrator, and observability stack single-handedly. Used AI and Codex agent pipelines to move from architecture to working services quickly.

Deployed GitLab, CI/CD pipelines, and the backend on Yandex Cloud. Technical ownership includes implementation, delivery, and visibility into production behavior.

My role and responsibilities
Authentication
Game meta-server
Markets
Chat
Unity orchestration
Observability

Icons8 Β· 2019–2026

Lunacy

From a Windows app to a cross-platform design tool.

Led engineering and product. Migrated WPF to Avalonia, rebuilt rendering around the GPU, shipped on Windows, macOS, and Linux, and launched a WebAssembly (WASM) version.

faster GPU rendering, up to
100Γ—
for the Avalonia migration
6 months
Inside the engineering

Independent product

Laitis

Voice control that gives people more independence. Built the desktop app, browser extensions, API, and distribution as a solo founder.

Supporting users with disabilities for over 10 years.

Meet Laitis

Arkadium Β· 2016–2017

Microsoft Casual Games

Familiar Windows games, serious engineering challenges. Crash dumps, memory leaks, concurrency bugs β€” and up to 5Γ— faster Mahjong startup.

Engineering at scale

FlexBricks Β· 2013–2014

Orbital Video

A player, a recording system, and an editor built from scratch. Recording from up to 32 cameras, real-time angle switching, and native Windows and macOS players.

Explore the 360Β° story

Beyond the implementation.

15+

Recommendations

From teammates, managers, and QA colleagues who worked alongside me for years.

Read their perspective

Mathematics & Computer Science

A master’s degree, years of teaching, and a habit of understanding things from the foundations.

Education & background

Several operating systems, every day

I use 4–5 computers with different operating systems at the same time. Windows, macOS, and Linux are part of my everyday development and testing setup.

My working environment

Have a hard problem?
I’m listening.

A .NET backend to build, a complex system to untangle, or a team that needs technical direction. Let’s discuss how to get it into production β€” with practical AI-assisted engineering.

Write on Telegram s@mklts.com

GMT+3
Calls: 12:00–20:00

All contact details