Software Engineer

OfferGenie; San Francisco (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Ploy is building an AI-native growth engine for modern marketing teams, delivering end-to-end product experiences and scalable systems. As a Founding Engineer, you’ll own projects from idea → shipped → scaled, partnering with product and design to shape the engineering direction.

You’ll ship across the stack, apply AI tools daily, and help build durable, user-focused product experiences in a fast-moving startup in San Francisco.

Qualifications

• Must have shipped 0→1 products in startup, new product line, or major greenfield initiative.
• Comfortable as a true full-stack engineer (front-end + backend).
• Strong product sense and design intuition for clean UI and user workflows.
• Systems mindset for fast, reliable, maintainable software as usage grows.

Responsibilities

• Build 0→1 product features end-to-end: discovery, design, implementation, launch, iteration.
• Work across the stack to deliver core product experiences and scale systems.
• Collaborate with founders and teammates to turn ambiguous problems into crisp execution.

Skills

Strong track record shipping 0→1

Full-stack engineer (front-end + back‑

Job description

# Software EngineerPloySan FranciscoFull TimeJuly 7, 2026Software EngineerApply with AI Cover Letter## Job DescriptionABOUT 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.