Engineering Manager building products that move millions.
“I had the privilege of working with Mihai Racu for more than seven years, during which he consistently demonstrated outstanding technical expertise and leadership.”
Thoughts on engineering, leadership, and building things.

Neon Wasteland Survivors Genre: 3D Isometric Co-op Survivors (Browser) Tech Stack: TypeScript · Babylon.js (WebGL2) · Node.js · WebSocket · Vite Timeline: ~1 Week A browser-based 3D isometric "survivors-like" game for 1–4 players, inspired by Yet Another Zombie Survivors . Players control a squad leader with AI companions, kiting escalating hordes across a neon-drenched wasteland while building synergistic loadouts through a choice-based upgrade system. The game features PBR rendering with modern post-processing (SSAO, bloom, color grading), an authoritative multiplayer server with client prediction and reconciliation, ECS-driven architecture, and a full meta-progression system — all running at 60 FPS in the browser. Key highlights include: 4-player co-op via lobby codes 70+ in-run upgrades 11 enemy types with elite variants 2 boss encounters with phased mechanics Dynamic map events Built with AI This project was developed in approximately one week using an AI-driven workflow combining Claude Code (Anthropic's agentic coding tool), Claude Sub Agents ( zhsama/claude-sub-agent ) for orchestrated parallel AI workflows, and the BMAD Method for structured AI project planning and iterative delivery. This combination enabled rapid progression from concept to a feature-complete vertical slice — covering game design, ECS architecture, networking protocol, asset pipeline, and full-stack implementation — at a pace that would traditionally require a small team over several months.

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Personal Website & Professional Dossier A modern personal website built with Next.js 15 and React 19 , featuring a glassmorphism design system, three-tier access control (public, gated, admin), bilingual content (EN/RO), and a full-featured admin dashboard for managing portfolio, blog, testimonials, and more. Core Stack Technology Role Next.js 15 Turbopack, App Router, Server Components & Server Actions React 19 Modern hooks — useActionState, useTransition, useOptimistic TypeScript 5.9 Strict mode across the entire codebase Tailwind CSS 4 Custom design tokens and glassmorphism component library PostgreSQL + Prisma ORM 40+ models, idempotent migrations, safe production deploys Vercel Hosting, edge middleware, and blob storage Key Features Feature Description Portfolio Project showcase with rich text descriptions (Tiptap), image galleries, tech stack tags, and live GitHub activity timelines with adaptive date grouping Blog Full publishing system with bilingual content, Tiptap rich text, syntax-highlighted code blocks (Lowlight), tags, and multiple formats — articles, TIL, case studies Git Activity Dashboard Automated GitHub/Bitbucket import pipeline (commits, PRs, comments, languages) with yearly activity stats, per-repo breakdowns, and animated counters Access Control Three visibility tiers: public, gated via signed tokens, and admin-only. Includes a gated access request pipeline with scoring, enrichment, and email notifications via Resend Testimonials Submission form, LinkedIn import, admin approval queue, and public display with expandable cards CV System Structured resume data (experience, education, skills, languages), PDF export via react-pdf, and DOCX import support i18n Fully bilingual (English & Romanian) with a type-safe dictionary system and locale-aware date formatting Admin Dashboard Complete CMS for projects, blog posts, testimonials, media, CV, access requests, git repo sync, and site settings Additional Technologies Library Purpose Three.js / React Three Fiber 3D graphics and interactive visuals GSAP Smooth scroll-driven animations and transitions Tiptap 3 Rich text editing with code block syntax highlighting NextAuth 5 OAuth authentication with Prisma adapter Upstash Redis Rate limiting and caching Resend + React Email Transactional emails with dark-themed HTML templates Zod 4 Runtime schema validation for forms and API inputs Vitest + Playwright Unit, integration, and end-to-end testing Design System Custom glassmorphism component library — translucent glass-effect cards, contextual badges, interactive buttons with loading states, modals, tabs, and bento grid layouts. Dark-first design with carefully tuned opacity layers, subtle borders, and a multi-accent color system. Terminal-inspired aesthetic with monospace typography throughout. Component highlights: Translucent glass-effect cards with layered backdrop blur Contextual badges and interactive buttons with loading states Modals, tabs, and bento grid layouts Terminal-inspired aesthetic with monospace typography Dark-first with carefully tuned opacity layers and subtle borders
This project is under a confidentiality agreement. Details cannot be disclosed.
Fix job title string
Fix filter validation in job monitor
Fix deploy
Set cron to daily
Fix page views timeline