Netguru

Senior Fullstack Engineer – Freelance

Netguru

full-time

Posted on:

Location Type: Remote

Location: Poland

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Salary

💰 PLN 160 per hour

Job Level

Senior

About the role

  • Owning the 'App Review' Process: Managing the complete verification cycle with Meta (including creating required screencasts and writing scope justifications) to ensure the app is approved for Live access.
  • Meta Ecosystem Configuration: Correctly setting up the application environment in the Meta for Developers console (identified by the client as the primary risk area).
  • OAuth Strategy & Implementation: Implementing the 'Login with Instagram' flow to securely fetch specific influencer data points needed for profiling.
  • Technical Advisory: Acting as the subject-matter expert to guide the client through Meta's strict policies and prevent application rejection.

Requirements

  • fluency in **Polish** and **English**.
  • OAuth 2.0.
  • Instagram Graph API.
  • Meta App Review experience.
  • **Nice to have:**
  • Passport.js / NextAuth.js / OmniAuth (depending on stack).
  • JWT (JSON Web Tokens).
  • OpenID Connect (OIDC).
  • Facebook Login Kit.
  • GDPR compliance basics.
Benefits
  • 100% remote, flexible work.
  • Work with an experienced team of developers and continuous development of your hard and soft skills.
  • Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes.
  • Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more).
Applicant Tracking System Keywords

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Hard Skills & Tools
OAuth 2.0Instagram Graph APIMeta App ReviewPassport.jsNextAuth.jsOmniAuthJWTOpenID ConnectFacebook Login Kit