Open role · Engineering · India · Remote or hybrid · Part time

# Product Engineer

Build and ship products in the AI space, from the data model and the runtime to the screen a customer touches.

[How to apply](https://caygnus.com/careers/product-engineer#apply)

## The role

You will own features end to end: the schema, the service, the failure modes and the interface. Much of the work sits behind a conversational product, with client state, realtime protocols, durable scheduling, and a runtime that stays dependable when networks and model providers fail. Calling a language model is the easy part. Making it reliable is the job.

## What you will do

-   Design and build features across the stack, from schema to interface.
-   Make systems survive real conditions: reconnection, retries, partial failure and recovery.
-   Choose the data structures and interfaces that keep the next change cheap.
-   Write focused tests for the behaviour that matters.
-   Ship to real users on a short loop and act on what comes back.
-   Explain your decisions, your trade-offs, and the scope you left out.

## What we look for

We care less about years of experience than about evidence: what you have shipped, the complexity you handled, and how you decide.

-   You have shipped something real and can explain every part of it.
-   Strong fundamentals in data modelling, concurrency and failure handling.
-   Comfortable across the stack, even if you are stronger on one side.
-   You reach for the simplest thing that works.
-   You write clearly. Most engineering disagreements get resolved in writing.
-   You handle ambiguity by making a reasonable assumption, writing it down, and continuing.

## The rubric

Every submission is scored on the same public scorecard, whatever stack you choose: core correctness, architecture, coding patterns, failure handling, testing and communication. You can read it before you start.

[Read the review scorecard ↗](https://github.com/caygnus/product-engineer-ps/blob/main/REVIEW_SCORECARD.md)

## How we hire

1.  The challenge · Fork the public repo, choose one of five focused problems, and spend roughly 6 to 8 hours on it.
2.  Technical conversation · We walk through your submission together: the architecture, the failure cases you handled, and one trade-off you made.
3.  Team conversation · How you work, what you want to build next, and whatever you want to ask us. Both sides decide.

## Skills

-   TypeScript
-   React
-   Next.js
-   React Native
-   Postgres
-   Realtime
-   Durable workflows
-   Testing

## Other roles

[Product Designer](https://caygnus.com/careers/product-designer)[Growth and Marketing](https://caygnus.com/careers/growth-marketer)[All open roles](https://caygnus.com/careers)

How to apply

## Apply by building.

Fork the repo, pick one of the five problems, and send us the link. About 6 to 8 hours of work, due within 3 to 4 days.

[Take the challenge](https://github.com/caygnus/product-engineer-ps)

Or email us · [hr@caygnus.com](mailto:hr@caygnus.com?subject=Product%20Engineer) · Subject: Product Engineer

Department

Engineering

Location

India

Work type

Remote or hybrid

Employment

Part time

Experience

You have shipped something real

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Source: https://caygnus.com/careers/product-engineer