Krishna Kumar

• Engineered and developed reusable, robust code for core products, including Continuous-Miner, Shearer and Shuttle-Car.
• Enhanced customer satisfaction by effectively resolving technical issues.

Projects :

Straight Cut System (Java, Spring Boot, React)-

Core Aspects of the Straight Cut Use Case:

• Implemented ErrorBoundary components in React to capture UI errors and prevent crashes, improving reliability during diagnostics and configuration workflows.
• Engineered inflight request handling logic to eliminate duplicate API and Web Socket calls, reducing redundant backend traffic and boosting efficiency.
• Developed backend services in Spring Boot to handle concurrent diagnostic/configuration requests, ensuring scalability and system reliability.
• Built real‑time WebSocket streaming logic with retry and status‑aware UI updates, enhancing usability for live engineering diagnostics.
• Contributed to machine‑aware dynamic configuration (React + TypeScript), enabling adaptive routing and screen rendering with fallback safety across multiple machine types.

Replay System (Java, Spring Boot)-

Core Aspects of the Replay Use Case:

• Troubleshooting & Incident Analysis: Enabled precise issue replication and root cause analysis through replay, accelerating diagnostics.
• Performance Optimization: Optimized system configurations with replay data, significantly enhancing performance.
• Safety & Compliance: Used replay data to improve safety protocols, ensuring compliance.

• Performed development on microservices and Couchbase integration, designing reusable, reliable code for distributed cloud environments, including analysis, coding, and testing.
• Mentored Junior Developer for smooth onboard in team with proper KT session and help.

Projects (Team - Order Capture, Client - AT&T USA) :

Pre-Tax and Pre-Proration MS ( Java, Spring Boot):

• Worked on development of pre-Tax and pre-Proration Microservices from Scratch to till successfully Deployment on environment.
• Developed filter mechanism for JSON responses from core-product MS, reducing time complexity for tax and proration calculations.
• Modified JSON-response coming from core-product MS by mapping relevant data which is responsible for correct calculation of tax and proration according to various product-Offering as per client's business need.

Catalog Outbound-Integration MS (Java, Spring Boot):

• Implemented Logic for reading KAFKA notification coming from external MS and as per message calling to generic-Element MS for getting entities-table data.
• Developed Business logic that filtered-out external MS response and stored only accurate data in Couchbase for C1 Business need.
• Reduced both Couchbase usage as well as C1 processing time.