# Software Engineer

- Company: [Ployai](<https://jobstar.asia/company/ployai>)
- Location: San Francisco
- Remote: Yes
- Team: Engineering
- Employment type: Full Time
- Posted: July 7, 2026

## Job description

## About Ploy

Ploy is building an AI-native growth engine for modern marketing teams — combining high-leverage product experiences with reliable, scalable systems.

We’re a small, fast-moving team shipping new product surfaces weekly and hardening them for real production traffic. If you enjoy building end-to-end products, sweating details, and scaling what you ship, you’ll fit in well.

## The role

As a **Founding Engineer**, you’ll work across the stack to build core product experiences and the systems behind them. You’ll partner closely with product and design, own projects from idea → shipped → scaled, and help shape the engineering culture and technical direction as we grow.

## What you’ll do

* Build 0→1 product features end-to-end: discovery, technical design, implementation, launch, and iteration.
* Use the latest AI tools every day — build with them, push their limits, and learn alongside teammates doing the same.
* Ship across the stack (web app, backend services, data, infrastructure) with a bias toward simple, durable systems.
* Build product experiences with strong UX quality: interaction design, performance, and polish.
* Design and operate systems that scale: reliability, observability, capacity planning, cost/performance trade-offs.
* Improve our engineering foundations: architecture, tooling, CI, testing, release processes, and on-call hygiene.
* Collaborate tightly with founders and teammates, turning ambiguous problems into crisp execution.

## What we’re looking for

### Must-haves

* Strong track record building and shipping **0→1** products (startup, new product line, or major greenfield initiative).
* Comfortable as a true **full-stack** engineer (front-end + backend), and willing to go wherever the work is.
* Strong product sense: you can reason about user workflows, trade-offs, and “what matters” without needing perfect specs.
* Design intuition: you care about craft, and you can implement clean UI with attention to detail.
* Systems mindset: you enjoy making software fast, reliable, and maintainable as usage grows.

### Nice-to-haves

* Experience scaling products and systems through inflection points (10× traffic, new customer segments, new pricing/billing complexity).
* Experience with AI-powered products (LLMs, agentic systems, evaluation/observability, prompt/tooling pipelines).
* Prior experience as an early engineer or founder in a high-ownership environment.
* Experience in the web and marketing space

## How we work

* Small teams, high ownership, fast iteration.
* Engineers own product: you’ll partner directly with design and founders, and have real agency over what we build and why.
* Pragmatic engineering: ship quickly, then harden with the right abstractions.
* We value clear thinking, taste, and accountability over ceremony.

## Apply

[Apply on Ployai](<https://jobs.ashbyhq.com/ployai/1dc75674-84dd-400d-b0fa-311a374ab697>)

Canonical job page: <https://jobstar.asia/job/software-engineer-ployai-san-francisco-38002402de26b86e>
