Job Title

Location: Remote (Requires 4 hours overlap with Australia AEST)Employment: Long-term contractor (full-time, 40h/w). You''ll invoicemonthly; standard Net-14 terms.Hiring entity: Testfully Pty Ltd (Australia).The Opportunity: Build for developers, at scaleAt Testfully, you''ll ship tools used worldwide and take on hard technicalproblemsfast UIs, reliable runtimes, and thoughtful DXowning solutionsend-to-end. If you enjoy hard problems and clean solutions, you wantownership and momentum, you''ll fit right in.The Role: Make Developer Life EasierYou''ll spend ~90% of your time shipping product roughly 70% businesslogic / 30% UI.Build core product logic (TypeScript). Ship maintainable modules sharedacross Web, Desktop, CLI, and extensions using clear patterns andarchitecture.Create reusable UI (React). Contribute to our design system(TypeScript, Radix UI, Tailwind) in an Nx monorepo.Ship micro-frontends. Deliver Web/Desktop features using our designsystem, Akita (state) and RxJS (reactive flows).Extend the CLI. Add features and keep parity with the apps via sharedTypeScript packages.Shape architecture. Partner with the CTO on decisions that guide how webuild.The Fit: Curious, Gritty, TypeScript-First, React-SavvyYou learn fast, love hard problems, work independently, and hold yourselfaccountable end-to-end. You turn ambiguity into shippable steps and communicatecrisply. We expect the following technical competencies:Expert in React. Shipped large-scale, stateful apps that solve complexbusiness problems; strong in component design, performance, and accessibility.Design systems. Built reusable component libraries with React and TailwindCSS; think in tokens, composition, and maintainability.Bonus. Experience with Rust, Golang, GraphQL, RxJS, or prior work ondeveloper tools.The Technology Stack: Modern, TypeScript-FirstTestfully''s codebase is less than 5 years old, with a strong emphasis onmaintainability, extensibility, and DX from day one. Our stack includes:React 18 with TypeScript, Radix UI, Tailwind CSS, RxJS, andNx monorepo for Web/Desktop apps and design system.Tauri and Rust for the cross platform Desktop app.Node.js, TypeScript for backend services and CLI.GraphQL and Golang for our API backend.AWS on a containerized architecture for scale and reliability.Github for source control and GitHub Actions for CI/CD pipelines.OpenAI Codex for AI-assisted development.We live and breathe TypeScript, with 100% of our codebase in TS. We usemodern patterns like reactive programming with RxJS, atomic design for UI, andmodular architecture for business logic. We prioritize DX, performance, andaccessibility.AI at Testfully: Human-Led, AI-AcceleratedAI is an enabler, not a replacement. We build with OpenAI Codex in thelooptoday, 100% of new features use AI for coding, tests, docs, andexplorationwhile human judgment and ownership decide what ships. You''reexpected to leverage AI daily, then apply your expertise to refine, verify, andbe accountable for outcomes.We also push back hard on low-quality outputs:No AI slop. Reject or rewrite weak suggestions; keep code readable and type-safe.Design > autocomplete. Don''t accept choices that harm DX, performance, accessibility, or API clarity.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 FitHands-off approach. Early-stage startup = everyone ships, debugs, documents, and helps shape the product. No bystanders.Low tolerance for ambiguity. Priorities shift. You''ll need to self-direct, make calls with incomplete info, and adapt quickly.Avoids direct feedback. We use real-time, candid feedback to move fast andraise qualityalways with respect and care.The Company: Small, Product-Obsessed, Developer-FirstWe''re a small, tight-knit team of passinate builders from Sydney, Australia. Ourfounder is a software engineer turned entrepreneur. Our obsession over ourproduct and the problem we''re solving is what drives us. Today, we servegovernments, fortune 500s, and fast-growing startups worldwide. We''re profitable andgrowing fast, and we compete with the likes of Postman and Kong Inc, and we''rewinning against them left and right.Our customers love us because we obsess over their needs, and we move fast tosolve their problems. We''re not a "me too" product; we''rebuilding something different, something exceptionally good, and we''re lookingfor new teammates who share our passion.How to ApplyA short cover note with relevant experience and expected monthly rate.(Optional) links to GitHub/portfolio/OSSOur founder will personally review all applications,and respond within a week. #J-18808-Ljbffr