Senior .NET Developer

Backend-first engineer delivering web products with a strong focus on reliability, delivery quality, and pragmatic architecture.

PLEN
Portfolio / App Router / TypeScript / Refined UI

I design and deliver polished .NET products, using React, TypeScript, and Python where they genuinely strengthen the system.

I combine backend architecture, frontend quality, and operational discipline around delivery. The goal is not only to ship features, but to leave the product ready for sustained growth.

Schedule a technical callSee my delivery approach
  • .NET Platform Engineering
  • TypeScript Systems UI
  • React / Next.js
  • Cloud Delivery
  • Python Tooling

10+

years delivering business-critical software in enterprise environments

.NET + TS

strong backend foundation with production-grade frontend execution

Prod-ready

architecture, observability, and release process designed together

01

Backend that owns the process, not only endpoints

I build systems where application layer, integration contracts, and domain model stay coherent as complexity grows.

02

Interfaces for products that must stay clear and fast

I use TypeScript, React, and Next.js to build interfaces that support users and product teams without accumulating UI debt.

03

Operational automation without overengineering

Python is used pragmatically for operational scripts, batch tasks, and internal tooling with measurable impact.

Selected projects

Concrete challenges, measurable outcomes. Three tracks: .NET backend, TypeScript frontend, and Python automation.

High-level .NET architecture showing API, domain services, and observability

  1. Transaction Platform for a Financial Institution

    Financial sector · Enterprise B2B

    2023 – 2024Lead Backend Engineer

    Challenge

    A .NET Framework 4.8 monolith handled 40k+ transactions daily with p95 latency up to 800ms and growing technical debt.

    Solution

    Incremental migration to ASP.NET Core with bounded contexts (DDD), Redis caching, asynchronous messaging via Azure Service Bus, and full OpenTelemetry observability.

    85ms

    p95 latency (from 800ms)

    99.97%

    SLA availability

    -62%

    infrastructure cost

    • .NET 8
    • ASP.NET Core
    • EF Core
    • Redis
    • Azure Service Bus
    • SQL Server
    • Docker
    • OpenTelemetry

  2. B2B SaaS Analytics Dashboard

    Fintech · Reporting platform

    2022 – 2023Frontend Architect

    Challenge

    Angular 9 frontend exceeded 6 seconds load time for complex reports and slowed down product delivery.

    Solution

    Rebuilt the frontend in TypeScript and React with route-based code splitting, TanStack Query, and table windowing for large datasets.

    1.1s

    load time (from 6.2s)

    91/100

    Lighthouse Performance

    -48%

    UI bug reports

    • TypeScript
    • React
    • Next.js
    • TanStack Query
    • Tailwind CSS
    • Vite
    • MSW
    • Vitest

  3. DevOps Automation Toolkit

    E-commerce · 200+ employees

    2024Platform Engineer

    Challenge

    Engineering teams were losing 14+ hours weekly on manual ops: environment bootstrap, data migrations, and release monitoring.

    Solution

    Built Python CLI tooling integrated with GitHub Actions, Azure DevOps, and internal APIs, including automated change auditing.

    14h/week

    time saved

    3 min

    environment bootstrap (from 2h)

    0

    manual deployments

    • Python
    • Click
    • GitHub Actions
    • Azure DevOps
    • Terraform
    • Docker
    • pytest
    • Pydantic

Senior Refactor

The page is split into domain sections, data is separated from rendering, and animation stays isolated from content concerns.

Discovery

I map technical risks, boundaries, and critical integrations before unnecessary complexity appears.

Build

I structure solutions into clear modules while protecting contracts, testability, and ownership.

Operate

I enforce monitoring, CI/CD, and telemetry so teams can sustain velocity after release.

Engineering Principles

Technology should accelerate product decisions and growth, not serve as decoration.

  • Architecture should help the team, not only look good on diagrams.
  • Reliable backend and quality frontend are one product system.
  • Every technology choice must justify onboarding and maintenance cost.
  • The best refactor simplifies the future path.

Stack

Backend is the core, but the full product remains coherent from API to user experience.

.NET remains the primary toolset for business systems. TypeScript and React strengthen the product layer, while Python powers automation.

  • C#
  • .NET 8
  • ASP.NET Core
  • Entity Framework Core
  • MediatR
  • REST APIs
  • Azure
  • Docker
  • SQL Server
  • PostgreSQL
  • Redis
  • TypeScript
  • React
  • Next.js
  • Tailwind CSS
  • Python
  • GitHub Actions
  • OpenTelemetry
  • Testing

Contact

Looking for a senior engineer who owns backend depth, can operate in frontend, and simplifies delivery instead of complicating it?

Contact details are placeholders. Replace e-mail, LinkedIn, and GitHub before publishing, then extend with your real case studies.

Limit: max 3 submissions / 60 min (client-side anti-spam).

LinkedIn / GitHub / case studies placeholders