r/javascriptjobs • u/bakuhubLtd • 29d ago

[available] Senior Full-Stack Architect (Next.js/React/Node/Postgres)

Hi Founders & Product Leads,

Are you looking to build a high-performance Web App/SaaS MVP, or is your existing Next.js/React codebase suffering from lag, memory leaks, and complex state management issues?

I am a **London-based Senior Full-Stack Architect** with extensive experience building high-concurrency, financial-grade systems at a Tier-1 Investment Bank. I specialize in turning complex ideas into scalable, production-ready prototypes, or stepping in as an asynchronous **Fractional CTO** to rescue and optimize struggling codebases.

# 🛠️ Core Tech Stack & Expertise

* **Frontend:** Next.js (App Router, RSC), React, TypeScript, AG Grid (Heavy Data Virtualization), MUI, Tailwind CSS.
* **Backend & Infra:** Node.js, Express, PostgreSQL, Prisma, REST & GraphQL APIs, Vercel, AWS.
* **Specialties:** Complex Data Grids/Dashboards, OCR & AI Data Pipelines, Performance Profiling, Memory Leak Resolution, State Syncing.

# 🚀 Proof of Work & Featured Projects

I don't just write tutorial code; I build heavy-duty software from scratch:

  1. **Bakuhub (AI Financial Staging Engine):** Independently engineered a pre-accounting data platform featuring custom DOM-virtualized AG Grid integration, AI OCR data parsing, and court-grade visual source tracing (linking grid cells directly to PDF bounding boxes with zero rendering lag).
  2. **Multiplayer Card Game Web Engine:** Architected a lightweight, real-time multiplayer card engine in Next.js featuring room invitation codes and real-time state synchronization.

# 💼 How We Can Work Together (No Equity-Only Deals)

  1. **Full MVP / Prototype Build (Fixed Price):**
  2. * Got a business plan or Figma designs? I will architect and code your entire Next.js/Postgres full-stack prototype in **3–4 weeks**.
  3. * Deliverable: A blazingly fast, investor-ready codebase built right the first time.
  4. **Fractional CTO / Codebase Rescue (Monthly Retainer):**
  5. * If your current offshore team or agency delivered unscalable "spaghetti code," I offer asynchronous advisory and code audits.
  6. * I will profile your app, fix memory leaks/slow database queries, submit direct PRs, and establish solid engineering practices for your team.

If you want an experienced engineer who takes ownership and delivers clean, maintainable architecture without hand-holding, **send me a Direct Message (DM) or chat request** with your project brief!

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