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Re:Ask HN: Who is hiring? (October 2025) by marvinkennis on Wednesday October 01, 2025 @03:03PM (#45441841)
Rectangle | On-site Chicago, or US remote in SF and NY | Full-Time | Salary + Equity

We're looking to hire a dedicated full-stack engineer at Rectangle.

If you are (or know!) someone who has thought deeply about distributed coordination, have strong opinions on conflict resolution, or get excited about building systems that are resilient to crazy amounts of chaos, I'd love to talk to you!

Over the last few months we’ve been investing heavily in building our internal infrastructure to power automation, integration, and visibility across the supply chain. We’re rapidly onboarding new customers and are looking for an engineer who’s excited to build alongside them.

You’ll be working directly with customers, solving real-world problems, and scaling the solutions you build. The products you own end-to-end will coordinate billions of dollars of freight, and unlock real revenue and efficiency for leading tech-enabled logistics companies.

This is a great opportunity for someone who loves to operate 0 → 1 while also being directly involved in shaping our platform strategy as we keep stacking investments we’ve made into our infra layer.

Stack: Typescript, Go, Kafka, SQL, AWS

Email hn [@] rectanglehq.com or or submit a POST request with X-Application-Key: FDE-CHALLENGE-01 to challenge.rectanglehq.com and see what happens :)

https://rectanglehq.com

Re:Ask HN: Who is hiring? (October 2025) by singlepaynews on Wednesday October 01, 2025 @03:34PM (#45442240)
401 {"ok":false,"error":"X-Application-Key header is required and must be valid"}

Can't find a way to get a key on your website or in your bio?

Re:Ask HN: Who is hiring? (October 2025) by shinryuu on Friday October 03, 2025 @02:44AM (#45459788)
I think the key is FDE-CHALLENGE-01
Re:Ask HN: Who is hiring? (October 2025) by kayge on Friday October 03, 2025 @01:23PM (#45465330)
Shhh don't spoil the first filter! ;) Fun set of challenges though, they totally nerd-sniped me.

https://xkcd.com/356/

Re:Ask HN: Who is hiring? (October 2025) by singlepaynews on Sunday October 05, 2025 @02:13PM (#45483807)
Yes; post was updated after my comment

In my experience chatGPT solves the challenge handily, but it does get to the level of problem that GPT requires my code review for, so either I'm not as good at using chat as I could be or they've found the point at which someone has to prove they can actually do code review to filter; nice.