Full Stack Engineer

Full Stack Engineer

AviaryAI — Outbound AI voice agents for the financial services industry

**Location:** Hybrid- NYC **(3+ days in office required)** **Type:** Full-time W-2 employee, subject to a 90-day introductory period\ \ Salary and equity commensurate with experience and performance --- ## About AviaryAI We build AI voice agents for banks, credit unions, and insurers. Our agents are live and handling real customer calls today. We’re backed by Y Combinator and growing. We started with voice. Our SMS and RCS agents began as clones of the voice product — and they’re growing fast. Messaging is becoming a major part of our platform, and it needs a dedicated owner --- ## The Role You’ll be a full stack engineer working across our platform — and you’ll head the engineering effort on our SMS and RCS expansion.  This means:  * Leading the engineering effort to evolve our SMS and RCS agents from voice-agent clones into a messaging-native product — rich cards, suggested replies, media, session handling  * Writing the backend logic that manages conversation state and decision-making (Python)  * Building internal dashboards and tools to configure and debug agents (TypeScript)  * Contributing to our core frontend application as needed  * Integrating with messaging providers and carrier infrastructure — delivery, 10DLC, opt-in/opt-out  * Debugging real production issues when things break  You’ll own the messaging vertical from prototype to high-volume production.  This is not a ticket-driven role. You’ll have a lot of responsibility and a lot of autonomy.  --- ## What We’re Looking For * 1–3 years full stack experience (new grads welcome)  * Strong in Python  * Comfortable in TypeScript / modern frontend frameworks  * Experience building systems with real state or multi-step workflows  * Comfortable integrating third-party APIs  * Able to work without detailed specs   Bonus if you’ve worked in: * Startups  * Fintech / insurance  * Messaging or telephony systems (Twilio, Telnyx, Bandwidth, SMS compliance)  * LLM applications (prompting, agent frameworks, evals)   --- ## What This Is Like You won’t just be building CRUD endpoints.  You’ll be building systems that:  * Decide what to say next in a live conversation — hours or days after the last message  * Enforce business rules and compliance requirements (TCPA, carrier filtering, quiet hours)  * Handle messy, real-world edge cases  * Run thousands of concurrent conversations reliably   Your code will power real conversations with real customers — and unlike voice, every word is in writing. 

Location: New York, NY, US

Type: Full-time

Salary: $100K - $130K

Equity: 0.01% - 0.15%

Experience: Any (new grads ok)

Visa: US citizen/visa only

Skills: Python, TypeScript