Lead Fullstack Engineer - Remote

Overview

Siena is building enterprise empathic AI Agents powered by reasoning-adept LLMs. Siena is the first AI Agent of its kind, designed to integrate with existing systems and interact with customers across multiple channels from a single, unified platform.

If you're excited about the intersection of human-to-machine communication and want to be part of a team driving innovation and making a real impact in automating agentic workflows, join us on our mission to revolutionize customer experience through empathetic AI.

In Short

• Design, build, and maintain scalable features across the full stack (frontend, backend, and infrastructure).
• Collaborate closely with Product to break down scope and deliver in iterative, high-impact releases.
• Work on an AI-first product, integrating cutting-edge LLM capabilities into enterprise customer support workflows.
• Solve complex engineering challenges, from optimizing API performance to refining microservices architecture.
• Maintain and improve our cloud infrastructure (AWS) with a DevOps mindset.
• Share knowledge and mentor teammates, fostering a strong engineering culture.

Requirements

• 7+ years of software engineering experience in Node.js, React, TypeScript, and Express.
• Solid experience with cloud environments (AWS – Fargate, Lambda, EC2, SQS).
• Strong database skills with PostgreSQL and Redis.
• Familiarity with CI/CD pipelines (CodePipeline, GitHub Actions, or similar).
• Product-focused mindset—you think beyond just code and care about business impact.
• Deep experience in microservices architectures and scalable systems.

Benefits

• Make a real impact. Your work directly shapes our product and company.
• A voice that matters. In a small team, every perspective counts—yours included.
• Work your way. Whether it’s from home, a coffee shop, or a moon base—if you're productive, we’re happy.
• Competitive compensation. Great salary plus the opportunity for equity or stock grants.
• Flexible time off. Take at least 15 days—more if you need it.
• A learning budget. If you're growing, so are we.
• The thrill of building something new. Join us at a stage where your contributions matter most.
• Tackling meaningful challenges. We’re redefining how work gets done through AI.