Java Spring Boot Microservice — ITR Portal Login + AIS & 26AS Data Fetch Project Type: Backend Microservice Development Timeline: 4–6 Weeks (MVP) Date Posted: April 2026 Project Description Looking for an experienced Java developer to build a backend microservice that: Logs into the Income Tax e-Filing portal ( incometax.gov.in ) programmatically ( We have python based script we will share the script to login) Extracts the session token post-login Fetches AIS (Annual Information Statement) and Form 26AS from the TRACES portal ( tdscpc.gov.in ) Exposes the data via a REST API secured with JWT The service must handle OTP/MFA relay, auto token refresh, and be built to scale horizontally. Key Requirements Java 21 + Spring Boot 3.x Redis for encrypted session/token caching (TTL-managed) Resilience4j — circuit breaker, retry, rate limiting REST endpoints for login, AIS fetch, 26AS fetch, PDF download, session refresh JWT-secured API with structured JSON responses Docker + Kubernetes ready (Helm chart) Structured logging, OpenTelemetry tracing, Prometheus metrics WireMock-based integration tests + 80%+ unit test coverage Compatible with TRACES 2.0 portal (launched April 2026) 1. 2. 3. 4. • • • • • • • • • REST Endpoints Required Method Endpoint Description POST /api/v1/auth/login Initiate ITR portal login POST /api/v1/auth/otp OTP relay for MFA POST /api/v1/auth/logout Invalidate session GET /api/v1/ais/{pan}/{ay} Fetch AIS data GET /api/v1/26as/{pan}/{fy} Fetch Form 26AS (JSON) GET /api/v1/26as/{pan}/{fy}/pdf Download Form 26AS (PDF) GET /api/v1/session/status Check token validity POST /api/v1/session/refresh Force token refresh Tech Stack Component Technology Language / Framework Java 21 + Spring Boot 3.x Session/Token Cache Redis 7 (AES-256 encrypted, TTL-managed) Resilience Resilience4j (Circuit Breaker, Retry, Rate Limiter) Security Spring Security + JWT Observability OpenTelemetry + Micrometer (Prometheus) Deployment Docker + Kubernetes (Helm chart) Testing JUnit 5, Mockito, WireMock, Testcontainers API Docs Swagger / OpenAPI 3 Deliverables Complete source code (GitHub repository) Docker image + Helm chart for Kubernetes deployment Swagger/OpenAPI documentation Full test suite (unit + integration) • • • • README with setup and deployment instructions Skills Required Java · Spring Boot · REST API Design · Redis · Resilience4j · Docker · Kubernetes · JWT Security · OpenTelemetry · HTTP Session Automation · Web Scraping Key Risks to Address Risk Expected Mitigation Portal CAPTCHA / bot-detection Request throttling per PAN; ERI API fallback OTP/MFA blocking automation Async OTP relay endpoint in API TRACES 2.0 migration changes Support both old and new TRACES response formats Compliance Notes No taxpayer credentials to be stored in any database or log Service is pass-through only — no AIS/26AS data persistence Must comply with DPDP Act 2023 and IT Act 2000 Only for authorized/taxpayer-consented use cases Note to Bidders Please mention your experience with Indian government portal integrations or similar session-based HTTP automation projects. Prior experience with TRACES portal, ERI APIs, or income tax portal automation is a strong plus. For queries, contact the project owner before placing a bid.