Open to opportunities

facundo lonardi

@facundolonardi

Full Stack Software Engineer designing scalable web platforms, REST APIs, and cloud-native services with AI-assisted delivery.

Australia

Message

What I'm looking for

I’m looking for contract or permanent roles where I can own features end-to-end—shipping scalable web platforms, solid REST APIs, and responsive UIs—while using AI-assisted tooling to move faster without sacrificing engineering quality.

I’m a Full Stack Software Engineer with 5 years’ experience designing and shipping scalable web platforms, REST APIs, and cloud-native services. I bring strong backend foundations in Node.js, NestJS, and AWS, paired with modern frontend expertise across React, Next.js, and TypeScript.

I’m an AI-augmented developer who leverages LLM tooling (Cursor, ChatGPT API) to ship production-quality code faster—while maintaining sound engineering judgement. I’ve contributed to platforms powering large-scale LLM training and data-labeling workflows, and I enjoy owning features end-to-end from system design and API contracts to responsive UIs and deployment.

Across my roles, I’ve improved performance and reliability (e.g., cutting processing latency by 30% and render times ~40%), built reusable UI libraries and admin dashboards, and implemented observability with New Relic for faster incident response. I thrive in Agile teams, delivering features on schedule through cross-functional collaboration, code review, and CI/CD discipline.

Experience

Work history, roles, and key accomplishments

Frontend Developer

Welocalize

Mar 2024 - Jan 2026 (1 year 10 months)

Built and maintained frontend interfaces for an AI vendor platform supporting large-scale LLM training and data-labeling workflows using React, Vue.js, and TypeScript. Integrated with REST APIs for live data sync and automation, cutting render times by ~40% through memoisation, lazy loading, and code-splitting.

React Vue.Js TypeScript REST APIs Performance Optimization Lazy Loading Agile Scrum

Software Developer

Southworks

Jan 2022 - Feb 2024 (2 years 1 month)

Led a rewrite of a high-throughput promotion engine (Node.js, React, AWS), reducing processing latency by 30% and improving stability under peak load. Implemented observability with New Relic and built automation tooling that saved ~10 hours per week of manual admin work.

React AWS Performance Engineering Observability Automation Tools CI CD Agile Scrum System Reliability

Full Stack Developer

Treggo

Jan 2021 - Jan 2022 (1 year)

Built web and mobile-app services for a last-mile logistics platform using Node.js, Express, React, and Redux, including real-time tracking and partner coordination. Designed UX flows that reduced support tickets related to order tracking and mentored 3 junior developers to independent delivery within 3 months.