Government Tech

ESTA Visa

Application screening for the US Visa Waiver Program, combining automated validation with human review.

−20%
Application errors
<30 min
Processing
9-point
Inspection
ESTA Visa: government tech built by Square63
  1. Starting point

    application-esta.co.uk helps UK and Schengen travellers apply for the US Visa Waiver Program.

  2. What we built

    Square63 built a 9-point inspection engine that validates applications automatically and routes exceptions to human reviewers, cutting application errors by 20%.

    • Ruby on Rails
    • PostgreSQL
    • Stripe
    • Redis
    • Real-time Monitoring
  3. Result

    Processing averages under 30 minutes, with real-time status monitoring, Stripe payments and refund logic for denied applications.

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