Mphasis Interview Questions & Answers 2026

Mphasis is a Bangalore-based IT services company majority-owned by Blackstone. Specializes in BFSI domain (banking, insurance, capital markets) with strong cloud and cognitive services through their NEXT Labs and DeepInsights platforms. Mention their Front2Back transformation approach.

GC automatically reclaims memory of unreferenced objects. Generations: Young (Eden, S0, S1) for short-lived objects, Old/Tenured for long-lived, Permanent/Metaspace for class metadata. Algorithms: Serial GC, Parallel GC, CMS, G1GC (default since Java 9), ZGC. Trigger via System.gc() but JVM decides actual collection.

REST (Representational State Transfer) is an architectural style for stateless client-server APIs. HTTP methods: GET (read, idempotent), POST (create), PUT (update/replace, idempotent), PATCH (partial update), DELETE (remove, idempotent). Use proper status codes: 200 OK, 201 Created, 400 Bad Request, 401 Unauthorized, 404 Not Found, 500 Internal Server Error.

Mphasis works extensively with global banks. Key concepts: Core Banking Systems (Finacle, Flexcube), payment systems (SWIFT, ACH, RTGS, IMPS), regulatory frameworks (Basel III, PCI-DSS, FATCA), trade finance, lending platforms, and risk management. Knowledge of FIX protocol helps for capital markets roles.

Pyramid approach: unit tests (70%), integration tests (20%), E2E (10%). Practice TDD where possible. Use frameworks: JUnit/Mockito for Java, PyTest for Python, Selenium for UI. Aim for >80% code coverage. For Mphasis BFSI projects, emphasize regression testing given regulatory compliance.

Iterative: for(i=1;i<=n;i++) result *= i; handles negative input check. Recursive: factorial(n) = n * factorial(n-1) with base case factorial(0)=1. For large n, use BigInteger in Java to avoid overflow. Time O(n), Space O(1) iterative, O(n) recursive.

Use Eisenhower Matrix (Urgent vs Important). Communicate with stakeholders to understand actual deadlines. Break tasks into smaller deliverables. Identify dependencies and critical path. Be transparent if commitments cannot be met and propose alternatives.