Senior Fullstack Engineer

Budgetly

1d•Remote

About The Position

Managing business expenses shouldn't be a guessing game. Yet many SMEs still lack clear cash flow visibility and spend control. At Budgetly, we're changing that. We're building an AI-first platform that simplifies expense management and helps businesses make better financial decisions, faster. The goal is simple: help you spend smarter, save time, and grow profitably. This role is part of a small fully remote team, reporting to the Team Lead with a light-touch structure — you own your lane and outcomes directly and are trusted to deliver. We're going all-in on AI-enabled workflows across the business, and this role plays directly into that, shipping product features while helping raise the bar on engineering quality and practice. We’re building an AI-first delivery system where agents ship product features end-to-end, and engineers build the platform (the harness) that makes it safe, reliable, and scalable. This is a hands-on delivery role with a focus on shipping product features.

Requirements

Strong fullstack engineering ability. You can design and ship robust, scalable systems, not just features to a spec. You think about maintainability and trade-offs as you go.
Genuine delivery orientation. You want to be shipping product, working closely with a small team, and taking ownership of outcomes rather than just tickets.
Must have advanced knowledge of TypeScript, JavaScript, React, SQL, and Node.js
Experience building large-scale software applications in production
You can read a codebase and quickly identify its patterns, conventions, and architecture
You are comfortable working in ambiguity and turning fuzzy intent into clear acceptance criteria + evals
Experience with unit/integration testing
Experience with AWS services or similar cloud infrastructure
Familiarity with agent tooling concepts: tool calling, MCP/tool integration, guardrails, evals, tracing/observability, and permissioning
Full Australian Work Rights
Must be located in Australia

Nice To Haves

You'll thrive here if you want a senior individual-contributor role with real autonomy, enjoy shipping product end-to-end, and like the idea of using AI tooling to work faster and smarter. It's not the right fit if you prefer stable scope, established best practices, and minimal ambiguity.

Responsibilities

Design and build robust, scalable solutions for complex problems, balancing performance, maintainability, and delivery speed
Design and implement agentic workflows that take a requirement from spec → code → review → deploy
Produce clean, well-tested, maintainable code across our TypeScript/React/Node stack
Use AI coding agent tooling as part of your day-to-day workflow
Suggest and implement process or technical improvements that make the team more effective