- Location: Remote (Requires 4 hours overlap with Australia AEST)
- Employment: Long-term contractor (full-time, 40h/w). You’ll invoice monthly; standard Net-14 terms.
- Hiring entity: Testfully Pty Ltd (Australia).
Hey 👋
We’re a small, product-obsessed team building Testfully—modern tools for designing, testing, and monitoring APIs. We’re hiring a Lead Front-end Engineer (IC), where about 90% of your time is spent shipping features across our Web and Desktop apps, CLI, and editor extensions. You’ll own work end-to-end—from crafting responsive React UIs to implementing well-structured JavaScript/TypeScript business logic.
The Opportunity: Build for developers, at scale
At Testfully, you’ll ship tools used worldwide and take on hard technical problems—fast UIs, reliable runtimes, and thoughtful DX—owning solutions end-to-end. If you enjoy hard problems and clean solutions, you want ownership and momentum, you’ll fit right in.
The Role: Make Developer Life Easier
You’ll spend ~90% of your time shipping product — roughly 70% business logic / 30% UI.
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Build core product logic (TypeScript). Ship maintainable modules shared across Web, Desktop, CLI, and extensions using clear patterns and architecture.
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Create reusable UI (React). Contribute to our design system (TypeScript, Radix UI, Tailwind) in an Nx monorepo.
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Ship micro-frontends. Deliver Web/Desktop features using our design system, Akita (state) and RxJS (reactive flows).
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Extend the CLI. Add features and keep parity with the apps via shared TypeScript packages.
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Shape architecture. Partner with the CTO on decisions that guide how we build.
The Fit: Curious, Gritty, TypeScript-First, React-Savvy
You learn fast, love hard problems, work independently, and hold yourself accountable end-to-end. You turn ambiguity into shippable steps and communicate crisply. We expect the following technical competencies:
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Fluent in JavaScript & TypeScript. Write clean, idiomatic code using modern patterns, best practices, and appropriate paradigms.
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Expert in React. Shipped large-scale, stateful apps that solve complex business problems; strong in component design, performance, and accessibility.
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Design systems. Built reusable component libraries with React and Tailwind CSS; think in tokens, composition, and maintainability.
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Bonus. Experience with Rust, Golang, GraphQL, RxJS, or prior work on developer tools.
AI at Testfully: Human-Led, AI-Accelerated
AI is an enabler, not a replacement. We build with Claude Code in the loop—today, 100% of new features use AI for coding, tests, docs, and exploration—while human judgment and ownership decide what ships. You’re expected to leverage AI daily, then apply your expertise to refine, verify, and be accountable for outcomes.
We also push back hard on low-quality outputs:
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No AI slop. Reject or rewrite weak suggestions; keep code readable and type-safe.
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Design > autocomplete. Don’t accept choices that harm DX, performance, accessibility, or API clarity.
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Proven code only. Ship with meaningful tests, docs/migrations, and profiling where it matters.
If you’re not excited to use AI and stand behind the result, this role isn’t a fit.
When This Role Isn’t a Fit
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Hands-off approach. Early-stage startup = everyone ships, debugs, documents, and helps shape the product. No bystanders.
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Low tolerance for ambiguity. Priorities shift. You’ll need to self-direct, make calls with incomplete info, and adapt quickly.
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Avoids direct feedback. We use real-time, candid feedback to move fast and raise quality—always with respect and care.
How to Apply
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Email
talent@testfully.io
with subject: Lead Front-end Engineer (React, TypeScript). -
Attach:
- Your latest resume (PDF)
- A short cover note with relevant experience and expected monthly rate.
- (Optional) links to GitHub/portfolio/OSS
We’ll review and get back to you with next steps.