Staff Product Engineer (São Paulo)

LawnStarter

LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with over $100M in annual bookings. We're expanding beyond lawn care to become the one-stop shop for all home services — operating across three brands (LawnStarter, Lawn Love, Home Gnome) on a single shared platform.


About Engineering at LawnStarter

We build in small, focused initiative teams: a Product Engineer working alongside a PM and a designer, supported by an Engineering Manager who helps you grow. You'll also work shoulder-to-shoulder with engineering peers across initiatives in a shared codebase. The whole team owns whether the work moves its metric.

Modern developer tooling and smart automation are a force multiplier here — they give a small, senior team the leverage to ship more, faster, and at a higher bar for quality. We hire engineers who are wired for ownership and energized by shipping to a real marketplace with customers and pros on both sides.


The Role

You're the engineering anchor of an initiative — working as part of a tight team with your PM and designer, and alongside engineering peers on adjacent initiatives. You have a hand in the full lifecycle: shaping the problem, deciding the technical approach, leveraging modern tooling to implement much of the code, shipping to production, and — with your team — owning the outcome.

You're measured by impact, not by lines of code merged. When automation can handle something safely, your job is to make sure it's done right and the metric moves. When the work calls for careful, hand-written code in a sensitive area, you write it yourself.

What makes this role exciting:


You ship end-to-end. From problem-framing through production to the post-launch metric review — you see the whole arc and own the result with your team.
You work as a true product partner. You sit at the table with PM and design, bringing engineering judgment to product calls and product sense to engineering calls.
You get real autonomy — with the right checkpoints. You make most technical calls yourself, with architect review on significant architectural decisions and fast input from peers.
You operate at a staff bar. You're trusted to make the call, ship the hard thing, and stand behind the outcome.



What You'll Own

The technical approach — architecture, data model, integration choices, rollout plan, observability, and rollback strategy for your initiative. You make most calls yourself and bring significant architectural decisions to architect review; you document them, and revisit if the data says you were wrong.

Implementation quality — the documentation, guardrails, evals, tests, and review loop that ensure safe, correct, production-ready code. Most lines will be tooling-assisted, and you're accountable for them — held to the same standard as the rest of the team working in a shared codebase.

Cross-functional partnership — daily working contact with your PM (scope, tradeoffs) and designer (UX decisions, in-tool prototyping), regular collaboration with engineering peers, and weekly check-ins with your EM.

The initiative outcome — the metric the initiative was set up to move. With your PM, you present results 2–4 weeks post-launch and share the "did it work" answer.

A high bar for what ships — production correctness, security, performance, observability, and the experience for customers and pros. Modern tooling accelerates you; it doesn't lower the bar.


Problems to Solve

Leveraging modern developer tooling at a staff-level quality bar
Much of the code on your initiative will be produced with the help of developer automation tools. The craft is making sure what ships reflects the same quality as any senior engineer's output: conventions encoded in clear documentation, evals that catch issues before merge, tests that exercise the edges, and observability that catches a regression before a customer does. How do you build a workflow that lets a small team ship far more than its size would suggest?

Owning decisions with high autonomy
You have real latitude to make and document technical calls quickly — with architect review on the significant architectural ones and peers to pressure-test your thinking. How do you move fast, keep your team aligned, and stay accountable to the outcome?

Shipping outcomes, not features
Each initiative is measured by a metric — a conversion rate, a retention curve, a pro-funnel KPI, a unit-economics shift. You're accountable for the number alongside your team. How do you scope to actually move it, decide what not to build, and have the discipline to follow up 2–4 weeks after launch?


What Success Looks Like (Year 1)


Initiative outcomes hit — You've shipped 3–4 initiatives end-to-end, and at least two clearly moved their metric (with the post-launch review to prove it).
Workflow that travels — The documentation, evals, and review loop you built are picked up by peers on other initiatives.
Faster cycle time — Median time from problem-framing to first production rollout on your initiatives is meaningfully shorter.
Quality holds — No customer- or pro-facing regression traceable to tooling-assisted code that slipped through your review.
Visible leverage — Peers point to artifacts you left behind — runbooks, evals, workflows, post-launch write-ups — as references they actively use.



Requirements

Who You Are


Tool-savvy. Modern developer tools and automation platforms are core to how you ship today — daily, on production work. You have real opinions about documentation, evals, automation loops, and review workflows, and you know when to let the tooling run versus write it yourself.
Operating at a lead level. Whatever your current title, you've been the person making the call, shipping the hard thing, and standing behind whether it worked.
Outcome-driven. You measure your week in "did the metric move" and "did the experience get better." You read the post-launch dashboard and own the answer.
A strong horizontal partner. You hold your own with a strong PM and designer, and you collaborate well with engineering peers in a shared codebase. You bring engineering judgment to product calls and product judgment to engineering calls.
Decisive and documented. You make architecture, data-model, and rollout calls, write them down, get fast input, and move.
A force multiplier. Your impact compounds beyond your own initiative because you leave reusable artifacts behind — workflows, evals, runbooks, and post-launch reviews.
Customer- and pro-minded. This is a real marketplace with real people on both sides, and you care about the outcomes for both.



Good to Know


An individual-contributor role with room to grow. People management sits with the EM — but the path into management is an open door for those who want it.
A product-engineering role, end-to-end. You ship features that move metrics; platform and architecture work happen inside the initiative when the outcome needs them.
Hands-on, with a high quality bar. Modern tooling handles much of the implementation; you bring the judgment, design, safety, and accountability. The bar is high.
Shipping to a live marketplace. With $100M+ in bookings, customers and pros use what you ship within the same week.



Tech You'll Touch


Developer tooling — Cursor, Codex, internal automation stack, MCP servers, evals tooling
Backend — PHP/Laravel
Frontend — TypeScript/React/React Native (customer & pro apps, web and mobile)
Data — Redshift, dbt, Segment, Airflow
Infra — AWS, Datadog, Sentry, GitHub Actions
Documentation & process — Brain (skills + docs repo), Confluence, Jira


You don't need every box checked. You need deep skill in at least one of our stacks plus credible production experience with modern developer tooling and automation.


Benefits


Competitive salary of USD $80,000–$100,000 annual base
Work from anywhere
High ownership and autonomy
Fast-moving team that loves to build, learn, and grow