Founding Engineer – JXBS

🚀 The Opportunity

JXBS is building an AI-first recruitment ecosystem that transforms hiring through intelligent automation. We've secured exclusive partnerships with 6 universities (30,000+ graduates annually), raised $300K at a $5M valuation, and we're moving fast.

Starting in Ecuador with plans to expand to the US and beyond, we're replacing traditional job boards with AI-powered conversations, intelligent matching, and automation that turns 45-day hiring cycles into 7 days.

We're looking for founding engineer #4 – someone who ships production code at 10x velocity using AI tools, can lead teams, and thrives in the startup chaos of building 0→1.

🎯 This Role Is For You If:

• You ship fast – Use Cursor, Claude Code, v0, Lovable to write code 5-10x faster
• You understand what's happening – AI augments you, but you have rock-solid software engineering fundamentals
• You've proven it – 5+ years building production systems, ideally in startups
• You move autonomous – Don't need specs, you create them
• Startup pressure energizes you – Not drains you

⚠️ Don't Even Apply If:

• You need extensive onboarding or can't figure things out independently
• You think AI tools are "cheating" instead of force multipliers
• You want to "explore" startup life but prefer big-tech stability
• You can't show proof of building something impressive
• You need perfect requirements before starting

🛠️ What You'll Do

You'll own features and projects end-to-end through the complete software engineering cycle:

• Brainstorm & align with founders and stakeholders on product direction
• Design & prototype – Create mockups in Lovable, v0, or Figma
• Plan & architect – Break down projects into tasks, design systems
• Distribute & lead – Coordinate with the team, mentor other engineers
• Ship & iterate – Build production features from database to pixel-perfect UI
• Scale & optimize – Take us from hundreds to thousands of users

Core areas you'll work on: AI chat interface for recruiters, candidate scoring engine, video assessments, real-time matching, mobile optimization.

Tech Stack

Frontend: Next.js 15, React 19, TypeScript, Tailwind, shadcn/ui
Backend: NestJS, PostgreSQL (Prisma), REST APIs, WebSockets
AI: LLM integration, LangChain
Infrastructure: Railway, Clerk (auth)
Tools: Turborepo, pnpm, Vitest, Playwright

💎 What Makes You Great

Must-Haves

✅ 5+ years full-stack with production systems at scale
✅ Expert TypeScript & React (Server Components, performance optimization)
✅ Strong backend (API design, databases, auth)
✅ Proven AI-augmented development – Regular Cursor/Claude Code/v0 user
✅ Spec-driven: translate product vision → technical implementation
✅ English fluency (written & spoken)

Bonus Points

🚀 Early startup experience (employee #3-20)
🚀 Team lead experience (mentored engineers, made architecture decisions)
🚀 AI product experience (shipped features with LLMs, RAG, embeddings)
🚀 Multi-market understanding (experience with international expansion, localization)
🚀 Something impressive you've built (OSS, side project with users, standout work)

🎁 What We Offer

💰 Competitive salary based on experience + location
📈 0.5-1.5% equity (4-year vest, 1-year cliff) at $5M valuation
🌍 Fully remote – work from anywhere
🤖 AI tools covered – Cursor Pro, Claude Pro, whatever you need
⚡ Ownership & autonomy – report to CTO, shape technical direction
🚀 Early-stage upside – ground floor of LATAM expansion

📋 How to Apply

READ CAREFULLY – This is a filter to see if you pay attention to details.

Send email to [HIRING_EMAIL] with subject line: "10x Engineer - [Your First Name] - [Favorite AI Tool]"

(Example: "10x Engineer - Sarah - Cursor")

Include in your email:

1. Your CV/Resume (PDF or link)

2. Why JXBS? (< 150 words)

• Why this role specifically?
• What excites you about AI-first recruitment?

3. Proof You're a Superstar (pick 2-3)

• GitHub profile or code samples
• Live project/demo you've built
• Example of using AI tools to 10x your productivity (screenshot, video, or write-up)
• Technical blog post or documentation you're proud of
• Open source contribution