Senior Software Engineer · Frontend architecture, design systems, and full-stack product work · React, TypeScript, Next.js, Node.js
I've spent 9+ years building production products in React, TypeScript, and Next.js. I focus on frontend architecture, design systems, and complex SaaS workflows, and I also build the Node.js/Fastify APIs, PostgreSQL models, and background jobs behind them.
Available for senior frontend, full-stack, and product engineering roles.
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- Frontend architecture: component APIs, rendering performance, and async, error, and empty states in data-heavy UI
- Design systems: shared component libraries, Storybook, accessibility defaults, and the conventions that keep them consistent
- Full-stack delivery: Node.js/Fastify APIs, PostgreSQL, auth, queue-backed background workers, and CI/CD
- AI product workflows: interfaces where model output stays unconfirmed until a person has reviewed it
- Developer experience: code review standards, CI quality gates, and tools for safer AI-assisted coding
| Project | What it shows |
|---|---|
| LedgerGuard | Multi-tenant AI contract intelligence SaaS, built end to end: Next.js, Fastify, PostgreSQL, document pipeline |
| AlwaysGeeky Games | Shared React/TypeScript component library across four product surfaces, with CI gates and accessibility rules |
| Emplifi | D3.js enterprise analytics, including an 80% cut in unnecessary re-renders and chart paint work in webviews |
| Agent tooling | Deterministic TypeScript CLIs and a GitHub Action for AI-assisted development |
| TallyFolio | Privacy-first personal finance PWA with deterministic money math and CSV import review |
| ControlTech | Four years of taking early-stage SaaS products and PWAs from MVP to production |
Local-first developer tools that make AI-assisted coding and review safer. No LLM in the loop.
- agent-context-doctor: audits
AGENTS.md,CLAUDE.md, Cursor and Copilot rules, and committed Claude Code and MCP settings for contradictions, stale commands, secrets, and risky permissions - agent-pr-reviewer-lite: deterministic pre-screen that flags the files in a pull request that need human review before merge
- agent-readiness-kit: scores how ready a repository is for AI coding agents across 13 categories and scaffolds the missing files
- agent-readiness-action: GitHub Action that runs agent-readiness-kit and agent-context-doctor on pull requests
- How I use AI in my frontend engineering workflow
- How I approach senior frontend architecture
- The quiet failure mode in contract AI
- Design systems that stick
More in /writing and engineering principles.
This repo is the source for alipajand.com: Next.js App Router, React, TypeScript, and Tailwind CSS, with Markdown-driven writing and case studies, deployed on Vercel.
pnpm install
pnpm devChecks: pnpm lint, pnpm typecheck, pnpm test, pnpm build. Architecture and route notes are in docs/.