Principal Software Engineer (Agentic AI)

Posted Yesterday
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Colombo
In-Office
Senior level
Artificial Intelligence • Software • Generative AI
The Role
As the Principal Software Engineer, you'll lead architecture and system design for AI infrastructure, mentor engineers, and deliver full-stack features.
Summary Generated by Built In

HeyMilo helps recruiters deploy multimodal AI agents that interview and evaluate candidates at scale. We're a fast-moving team backed by prominent investors growing at an unprecedented rate.

You'll own architectural decisions, ship end-to-end, and lead technical direction across our platform. This is a high-ownership role, not a ticket queue.

Requires flexibility to work evenings (IST) for overlap with our New York/Toronto teams.

What you'll do

  • Lead system design and architecture decisions

  • Build and scale real-time AI infrastructure

  • Ship full-stack features across backend and frontend

  • Drive reliability, performance, and observability

  • Mentor engineers and set technical standards

What we're looking for

  • 5–7+ years of software engineering experience

  • Strong distributed systems and AWS experience

  • Experience building agentic AI systems; prompt engineering, RAG pipelines, LLM orchestration

  • Familiarity with vector databases and retrieval-augmented generation patterns

  • You use AI tools (Cursor, Devin) to write code daily

  • You ship fast and own outcomes

  • Comfortable with Python, FastAPI, React, Next.js

  • Experience with MongoDB, Redis, and queue-based systems

Role is not for you if

  • You want narrow scope and predictable roadmaps

  • You avoid production responsibility

  • You're not comfortable with evening hours for cross-timezone work

Why you won't regret it

  • Real-time AI systems in production

  • Small team, high ownership, no bureaucracy

  • Awesome culture with a global team across New York πŸ‡ΊπŸ‡Έ, Toronto πŸ‡¨πŸ‡¦, and Colombo πŸ‡±πŸ‡°.

  • Competitive salary with benefits/allowances

Top Skills

AWS
Fastapi
MongoDB
Next.Js
Python
React
Redis
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The Company
HQ: New York, New York
24 Employees
Year Founded: 2023

What We Do

HeyMilo AI takes the guesswork out of the screening process and allows companies of all sizes to hire the right people for the job.


HeyMilo AI is a generative AI-powered voice agent that allows companies to automate the screening process and engage candidates with an always-available voice agent. The agent can be tuned for your role and interview needs and is designed to evaluate candidates in a bias-free manner.

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