Krishna Karthik Kola

Project 1: Multiuse Cartridge Recharger for Hemodialysis System(Client: Medtronic india Development Center)

Project Description Roles & Responsibilities

Role: Firmware Test Engineer
Team Size: 6
Duration: August 2020 – Present

The Multiuse Cartridge Recharger (MCR) is a key subsystem of the Hemodialysis System, developed to disinfect and restore single-patient, multi-use cartridges used in the Medtronic Dialysate Regeneration Module between treatment sessions. The system comprises two primary software subsystems:

• Recharger UI: A TI-RTOS-based graphical interface used by operators.
• Recharger FCCS: An event-driven software implemented on the QP Framework.

This electromechanical machine integrates various embedded components, sensors, RFID mechanisms, and automated testing utilities to ensure patient safety and cartridge reusability.

• Test Case Design & Management:
  Decomposed system and software requirements into detailed test cases.
  Mapped high-level requirements to test cases to ensure full traceability.
• Documentation & Compliance:
  Authored test protocols and managed review cycles with stakeholders (Quality, Regulatory teams).
  Addressed feedback and updated documentation accordingly.
  Prepared Tool Validation and routed documentation for DV readiness in Agile.
• Testing & Validation Activities:
  Executed Sanity, Functional, Integration, Negative, and Exploratory Testing.
  Conducted DVT (Design Verification Testing) for firmware using sensor simulation and system-level DVT with chemicals.
• Automation & Tools:
  Developed and executed automated test cases using Python, TCL scripts, and tools like Sensor Simulation and QSpy/QM Modelling.
  Specialized in RFID testing, including data reading/writing to RFID tags.
• Defect Management & Analysis:
  Performed root cause analysis by debugging logs and reported defects in Polarion and JIRA.
• Technical Understanding:
  Reviewed and analyzed Software Architecture Documents (SAD), Software Requirement Specifications (SRS), UI Specifications, and Logic Diagrams to understand the system behavior.