# Joshua Hewitt

> Senior Software Engineer

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/joshuahewitt

Senior Software Engineer (9 years) specializing in taking AI products from zero to one. I build systems that turn cutting-edge models into real, shipped features used at scale.

At Padlet (80M MAU), I built two of the earliest large-scale generative-AI features in the industry, AI Recipes and Teaching Assistant, taking both from concept to production. I designed multi-agent LLM systems, built automated eval pipelines, and delivered 80%+ user approval across thousands of daily users. 

I’m looking for a role in early 2026 where the entire team uses AI every day, and where I can help ship products that weren’t possible before modern models.

## Work Experience
### Senior Software Engineer @ Padlet
Jan 2020 – Jan 2024 | San Francisco, California, United States
The work I am most proud of was to conceptualise and lead the development of almost all AI features at Padlet. I came up with many of the initial ideas and pushed internally to make them happen.

I was also the tech lead on a number of projects:
- Creating Padlet's public API
- Major rebuilds of the billing system and notification system
- Improving the efficiency of the video transcription system

### Software Engineer @ Spriggy
Jan 2019 – Jan 2020 | Sydney, Australia
- Spriggy is an Australian Fintech with a Python, JavaScript, HTML, CSS and PostgreSQL stack.
- Led the redesign of the transaction system that slashed time to settle internal transactions by 52% and significantly boosted customer satisfaction.
- Set up automated deployment pipelines using Kubernetes in AWS and developed an iOS/Android app in React Native.
- Designed and built the solutions of key business objectives, such as major integrations with 3rd party services and a system to construct and deliver weekly spend summaries.
- Fixed major production outages under high-pressure conditions as the on-call engineer.

### Software Developer @ Leafcutter
Jan 2017 – Jan 2018 | Sydney, Australia
- Leafcutter is a Digital Agency working with Liquid, PHP, JavaScript, Linux, HTML, CSS and SQL.
- Developed many high profile websites including www.rspcansw.org.au, au.yeti.com, www.gisymbol.com
- Built custom web applications including a social media website using the Laravel PHP framework.
- Performed extensive data management on large SQL databases, managed remote Linux servers during web deployment and updated DNS nameservers.

### Software Developer @ Opus International Consultants Limited
Jan 2016 – Jan 2017
- Opus is an international Civil Engineering firm utilizing PHP, JavaScript, HTML, CSS and MySQL.
- Developed both backend and frontend systems for the company intranet using the PHP framework CodeIgniter.
- Led the creation of a fully featured online quiz system.
- Worked on an iPad web app that provided an interactive map for civil engineers to conduct surveys in the field.
- Led the development of a high-performance ORM service on data queried from an external API.

### Social Service Worker @ Interchange Inner East
Jan 2013 – Jan 2015 | Melbourne, Australia

### Private Tutor @ Self-employed private tutor
Jan 2012 – Jan 2015 | Melbourne, Australia
Tutored VCE students in Mathematics, Physics, Chemistry and Biology.


## Education
### Masters of Professional Engineering (Software) in Computer Software Engineering
University of Sydney
Jan 2016 – Jan 2018

### Bachelor of Science - BS in Civil Engineering
University of Melbourne
Jan 2012 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/joshua-hewitt12

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Source: https://flows.cv/joshuahewitt
JSON Resume: https://flows.cv/joshuahewitt/resume.json
Last updated: 2026-03-23