2019 ReasonConf - ReasonML & Hiring at Draftbit
by
Peter Piekarczyk
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Reason & Hiring at Draftbit Peter Piekarczyk
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Peter Piekarczyk • Polish • Loves to Cycle • ReasonML Lover • Expo / React Native Lover • Loves Plants (@petersplantss) • Y Combinator Alumn • Co-Founder of Draftbit
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Draftbit is a platform to help you build mobile apps visually
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1. Scan QR Code 2. Drag Components 3. Export Code
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• React / ReasonML • Flowtype • Web Assembly • Expo • GraphQL / Apollo • Postgres Draftbit Stack
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TypeScript Reason Reason + Draftbit
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• reason-react • reason-graphql • bs-emotion • get_in ppx • gentype ReasonML Stack
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Greeting.re
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Greeting.gen.js
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Layers (Js) Frame (Yoga / Wasm / Reason) Config (JS / Reason) Live Preview / Code Gen (Reason) Navigator (Reason)
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Draftbit v0.0.1 Javascript
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Draftbit v1.542.0 Javascript Reason
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Draftbit v1.1749.0 Reason Javascript
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• Turnover • Low salaries • Too much work • Too many opinions • Not enough people Early days at a Startup
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“Hey do you want to come work for me for 1/2 the pay? We only have 6 months of runway and no 401k”
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Perry from Shrek $3.5 million dollar house TFW 1 Day Sprints 3/4 Are Gone
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Sebastian Brandon Angela Peter
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Draftbit
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What does hiring look like?
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Pursuit
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• Friends • Twitter • Meetups • LinkedIn • Recruiters Finding Engineers
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Meetups
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Interview
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Asking the Right Questions is Hard
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Looking for Seniors Looking for Reason
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Onboarding
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We Used to Start with Javascript
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“Hey Peter…”
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“I think I broke something…”
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15 minutes & 10 console.log’s later…
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Config.apiUrl vs. Config.apiURL
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Prettier? Eslint? Editor Setup? VS Code? Webstorm? Sublime Text?!?
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It *just works* with Reason
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Our New First PR Review?
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Reason Compiler
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Wait, what? Junior:
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Look at the Compiler Peter:
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Guess what?
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1 month in, our juniors are productive with Reason
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That being said…
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A Compiler Won’t Turn a Junior into a Senior
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Closing Thoughts
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BAEs BEST. AUDIENCE. EVER. draftbit.com/reason draftbit • peterpme
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