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inman-sebastian/README.md

👋 Hi, I’m Sebastian

Senior Frontend Systems Architect • Design Systems • TypeScript Monorepos • DX Engineering

I specialize in building enterprise-grade web platforms, design systems, and developer experience tooling that help teams ship consistent, accessible, and scalable software across large product ecosystems.

My work sits at the intersection of frontend architecture, design systems, and internal tooling. I’m most effective in environments where multiple teams and products need to move fast without breaking standards, accessibility, or maintainability.


🏗️ What I Do

Enterprise Frontend Architecture

I design and implement systems that support multiple brands, products, and engineering teams — including monorepos, shared UI packages, code generation pipelines, and typed API architectures.

Design Systems & Component Libraries

I build design systems and component libraries from the ground up: tokens, documentation, accessibility standards, interaction models, and tree-shakeable component packages.

TypeScript-First Engineering

Strong typing powers everything I build — from domain models to API proxies to generated schemas and internal tooling.

Developer Experience (DX)

I’m passionate about the tooling engineers rely on every day: CLIs, build pipelines, local-first workflows, automated scaffolding, and consistent architecture patterns.


⚙️ Technologies & Specialties

  • Frontend Architecture • Component Systems • Platform Engineering
  • TypeScript • React • Next.js • Node.js • Vite • Turborepo
  • Design Systems • Design Tokens • Accessibility (WCAG)
  • Monorepos • Package Management • Shared Libraries
  • Internal Tooling • Code Generation • CLIs • Build Pipelines
  • Performance Optimization • Caching Strategies • Rendering Models

🤔 Why My GitHub Activity Looks Quiet

Most of my professional work lives behind strict NDAs, inside private company GitHub organizations, or within enterprise repositories that aren’t open source.

This includes:

  • large-scale monorepos
  • internal tooling
  • design systems
  • enterprise component libraries
  • infrastructure code
  • CI/CD pipelines
  • multi-brand platform architecture

In other words: my GitHub profile doesn’t reflect the volume or complexity of what I actually build — because the companies I work with typically have private ecosystems.

If you’d like to see examples of my architectural work, design system implementations, or internal tooling patterns, I’m always happy to discuss them at a high level.


🧪 Personal Projects & Experiments

Outside of work, I explore:

  • ColorForge — a color palette generation tool powered by OKLCH and accessibility grading
  • Voxel & Game Engine experiments using Godot and WebGPU
  • Offline-first AI tooling (local model runners, prompt systems, electron apps)
  • Design System utilities and architectural patterns for scalable UI libraries

These projects tend to mirror the kind of problems I solve professionally — modularity, performance, accessibility, and developer ergonomics.


📫 Get in Touch

I’m open to roles and collaborations involving:

  • enterprise frontend engineering
  • design system architecture
  • platform engineering / DX
  • internal tooling
  • complex UI ecosystems

Message me here on GitHub or on LinkedIn.


Thanks for stopping by ✌️
Building systems is what I do — making them delightful is the fun part.

Pinned Loading

  1. Extended-Editor-Windows Extended-Editor-Windows Public

    A Unity package containing a collection of helper classes that extend the default Editor Window, making it much easier to create and customize your own Editor Windows within Unity.

    C# 1

  2. Extended-Editor-GUI Extended-Editor-GUI Public

    C# 1