Concord Materials

Automating procurement for construction companies

Rails + React Developer

$50k - $120k
New York, NY, US / Austin, TX, US
Job Type
Any (new grads ok)
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Anthony Valente
Anthony Valente

About the role

Tech stack: at least some experience in both Rails and React and deep expertise in at least one of them

  • Ruby on Rails (Expert) - we are on rails 6 and ruby 3
  • React (Experienced) - (we use hooks + redux)
  • Ionic (Nice to have)
  • Capacitor / other mobile hybrid app generators (i.e. Cordova, PhoneGap) (Nice to have)
  • Figma (Nice to have)


  • Full-stack web and hybrid mobile app developer
  • Ruby on Rails expertise building complex backend logic and high-performant APIs
  • React experience building dynamic front ends with great user experiences
  • Deploying PWAs, iOS and Android apps using 1 code base (via Capacitor, Cordova, or another plugin)
  • Ability to work independently and break down larger tasks into subtasks, ask questions to clarify and better understand, mock-up a low-fidelity draft when it makes sense, ask for feedback and iterate
  • Focus on proper coding style, especially single responsibility and DRY principles
  • Using good testing principles to automatically check use-cases are still handled after code changes


  • Build full-stack automation features in Rails + React
  • Utilize a mock-up → functional → optimized approach to building features
  • Own end-to-end user flows (user experience, functionality, flexibility for different client needs)
  • Write well-structured and well-tested code to decrease technical debt and increase platform flexibility

Location preference: Fully remote is fine but we have developers in the following locations already

  1. Austin
  2. NYC
  3. SF
  4. LA
  • Company off-sites 2x per year (Austin, NYC, The Hamptons)

Why you should join Concord Materials

Fintech-enabled marketplace with automation tools for purchasing raw materials backed by YC and top VCs - firstminute, NFX, FJ Labs, and J Ventures

Concord Materials
Team Size:7
Location:New York
Anthony Valente
Anthony Valente