eVisa Platform Integration

Unified visa submissions with automated validation and SLAs.

Tanay Chakraborty11/15/20236 min
GovTechAutomation

Secure workflow automation for eVisa.

eVisa Platform Integration

Unified, secure online visa applications with automated validation, SLAs, and status transparency.


Overview

Multiple embassies and agencies required a single, secure intake that adapts to changing rules. I implemented a centralized workflow with rule-based validations, document handling, and proactive notifications across the submission lifecycle.

Problems We Solved

Fragmented forms and duplicate data entry across destinations
Frequent rejections from missing docs and invalid formats
No reliable status updates; support load spiked
Manual SLAs with poor auditability and dispute risk

Approach

  1. Schema-driven intake
    • Destination-specific forms generated from versioned JSON schemas; conditional logic per rule set.
  2. Validation + documents
    • Client and server validation; virus scan; image/PDF normalization; checksum dedupe.
  3. Status and SLAs
    • State machine with timers for review/approval/issue; notifications by email/SMS/webhooks.
  4. Audit & compliance
    • Immutable event log; redaction policies; export for regulators and partners.

Reference Architecture

  • Next.js frontends (public portal + back office)
  • Node/TypeScript services with workflow engine
  • Object storage for documents; signed URLs; AV scanning
  • Queue workers for long-running tasks (OCR, checks, batch exports)

Outcomes

  • 38–52% faster end-to-end processing time
  • 31% fewer rejections due to document or field errors
  • 45% drop in “status” support tickets after self-serve tracking

Key Metrics

MetricBeforeAfterDelta
Time to decision6.1d3.4d−44%
Rejection rate19%13%−31%
Status-related tickets−45%

Delivery Timeline

  • Discovery: 1 week
  • MVP with 3 destinations: 3–4 weeks
  • Hardening + additional destinations: 3–6 weeks

Stack

  • Next.js, Node/TypeScript
  • Postgres, Redis, S3-compatible storage
  • Queues + webhooks, OpenTelemetry, structured logs

Want to modernize your application intake and cut processing time? Let’s align on your first 2–3 destinations and ship an MVP.

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