Senior Fullstack Developer / Founding Engineer (Node.js, React, AI)

🚀 Hiring: Senior Fullstack Developer / Founding Engineer (Node.js, React, AI)
Geos LLC, a US-based software company, is looking for an experienced engineer to join LeadBridge, an AI-powered SaaS platform for service businesses.
💡 About the Role:
LeadBridge is already in production with paying customers. We're looking for a hands-on senior engineer who can take technical ownership, solve complex problems, improve AI reliability, and coordinate a small development team.
This is an opportunity to help build and scale an existing product, with meaningful ownership in its future.
✅ Key Requirements:
Experience: 7+ years in software development preferred.
Backend: Strong TypeScript, Node.js, REST APIs, webhooks, asynchronous processing.
Frontend: React, JavaScript/TypeScript.
Database: PostgreSQL, SQL.
Architecture: Production SaaS, complex integrations, scalability, and reliability.
AI: Experience with LLM APIs, AI agents, and AI-assisted development tools (Claude Code, Codex, Cursor).
DevOps: CI/CD, automated testing, cloud infrastructure.
Leadership: Ability to make independent technical decisions, review code, and coordinate other developers.
🌟 Nice to Have:
Voice AI, telephony, Twilio, RingCentral, or similar integrations.
CRM integrations and multi-tenant SaaS.
Experience in early-stage startups.
📍 Details:
Location: Remote, Europe preferred.
Engagement: Full-time, long-term.
Compensation: Below-market salary + equity in LeadBridge (subject to vesting).
Language: Conversational English.
Start: ASAP.
We're looking for someone who values long-term ownership and is comfortable combining hands-on engineering with technical leadership.
📩 How to Apply:
Send your CV/LinkedIn profile, relevant experience, and a short introduction via DM.
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