Principal Software Engineer

About the role

Note: Partly is headquartered in Austin, TX with offices in London, UK, Christchurch, NZ and Auckland, NZ. Wherever you're based, we'll connect you with your nearest office for onboarding, and fly you to join the full team for our quarterly "Season Openers" (we cover travel and accommodation). If you're relocating to join us, we can also assist with relocation costs.

🚀 OUR STORY

Partly is building the infrastructure for anyone to repair anything. We believe everything built should be repairable, and we're building frontier AI to put repair knowledge to work, starting with the $2tn automotive market.

Our model, Interpreter, is the first AI purpose-built to understand repair. Trained on 1M+ car models and 1B+ parts, it reads a repair job the way an estimator does, resolves damage into the exact purchasable part, and shows its reasoning with a confidence score. On real production jobs, an estimator working with Interpreter reaches 98.8% parts-list accuracy, against 92.1% with today's tools. It powers PartlyRepair, used by collision shops, workshops and suppliers to take the admin off the job; PartlyLabs, the agentic infrastructure enterprises use to deploy Interpreter across their own workflows; and a developer API.

Founded by ex-Rocket Lab engineers, we've raised a $50m Series B led by DST Global (Anthropic, Airbnb, Meta, TikTok, Spotify), with Blackbird Ventures, WNDR, Activant Capital, Icehouse Ventures, Square Peg, Airtree and Ecliptic Venture Capital. Hear it from the team: Why Partly exists https://www.partly.com/nz/careers/videos/why-partly-exists and AI at Partly https://www.partly.com/nz/careers/videos/ai-at-partly.

🖍️ THIS ROLE

In this role, you will work alongside other members of our development team to tackle hard, exciting problems and build beautiful software.

💻 WHAT WILL YOU DO

- You'll be working on mission-critical systems for our core SaaS and API platform.

- You will be ensuring these features are highly scalable, fault-tolerant and accurate.

- You will be working to provide a great experience to businesses using the Partly platform.

- You will be helping to develop and share software best practices with the team.

- This is an opportunity to become an expert in the extremely complex and underserved auto parts domain.

🥷 YOUR SKILLS

- 5+ years of experience developing complex applications

- Firmly grounded computer science and engineering fundamentals, including data structures, concurrency, architecture, APIs, testing, and design patterns.

- Strong written and verbal communication and collaboration skills

- Strong knowledge of databases and data models, relational and NoSQL

- Experience building reliable, distributed systems

- (Bonus) Experience with automotive parts

- (Bonus) Experience with Rust

🎁 BENEFITS

- Healthy, Catered Lunches - Enjoy fresh, healthy lunches every workday in our Auckland, Christchurch, London, and Austin offices. With no meal prep needed, you can eat, connect, and refuel with your team. (And yes, snacks and drinks are always on hand.)