About this role
Lead Engineer & Technical Lead at Custom AI Solutions LLC. Location: Brazil. Role: directing architecture, mentoring engineers, performing engineering Requirements: 6+ years full-stack engineering experience, production AI systems and LLM APIs, leadership and mentorship experience, registered legal entity in Brazil, fluent English, experience with real-time systems and PostgreSQL in multi-tenant SaaS. Category: Software Development Seniority: Senior Level Tools: Node.js, TypeScript, PostgreSQL, Docker, React 19, Tailwind CSS, shadcn/ui, PWA, Telnyx, Deepgram, WebRTC, SIP, Anthropic Claude, Google Gemini, Mastra, OpenAI, Azure, GitHub Actions CI/CD, Pipecat Commitment: Contract Workplace: Remote Languages: English