Vignesh Mohankumar Email & Phone Number

San Francisco Bay Area

Reagent Manufacturing Led Process Development activities with the Reagent Manufacturing group for an NGS assay run in a CLIA lab, including Reagent Scale-up, Process Transfer for Automated aliquoting of key NGS reagents (UDI). Served as SME and troubleshooting expert for Production and QC activities. Oversaw end to end Change proposals to simplify QC testing and reduce operational costs. ( AlloSure product line) Managing project to replace aging Liquid Handlers and manual plate sealing processes with an automated LHI-Sealer-Stacker system (Tecan 1080).Scale-up solutions to optimize yield, cycle time and batch size to minimize costly QC events.Process EngineeringSupport for CLIA Lab Operations, Reagent Manufacturing, Facilities, Automation and Supply Chain teams. (Process Mapping, Documentation for QMS, Space Planning, Facilities Validation, Equipment/ Process Re-qualification, Root Cause Analysis)V&V activities for Process and Equipment Relocations. Validated an automated Plate Labeler system (Squix) and implemented into Production. (Mfg.) Planned and executed a phased Lab relocation without any impact to a 24*6 CLIA Lab Operations environment. (Space Planning, Move Logistics, Equipment, Process and Facilities V&V). Capacity Planning to add additional instruments (LHI’s, Thermocyclers, Sequencers) to the existing fleet and get them qualified to ensure no impact to Lab operations during the Lab relocation. Executed a phased move of aging Liquid Handlers (Biomek Fx/ FxP 3000, currently phased out of the market) for the Manufacturing lab and re-qualified all equipment without any disruption to production. Minimizing Scrap Exposure and providing expiry date extension for key reagents through statistical analysis and/or accelerated stability testing protocols of key reagents

San Francisco Bay Area

Leading the Chip Technology Development team in an ISO certified semiconductor fabrication facility manufacturing a silicon based micro-array medical diagnostic device.Coordinate and execute R&D for new Chip Chemistry exploration based on peptide microarray technology. Tested new processes developed for synthesising DNA biochips on silicon wafers meant for SNP genotyping and targeted DNA sequencing. Fabricated high density peptide microarrays used to drive an early diagnostics platform especially useful for early detection of auto-immune conditions including celiac disease. Member of a high-volume manufacturing and chip research team directly reporting to the CEO.

Raleigh-Durham, North Carolina Area

Design of an Autonomous Surface Vehicle (ASV) capable of navigating inland lakes to record hydrilla weed concentrations and deploy herbicide accordinglyAn ASV equipped with SONAR imaging creates acoustic data maps to track monoecious hydrilla concentrations.• Under the guidance of Dr. Scott Ferguson of NC State, commisioned by United Phosporus, Inc.(UPI), a leading supplier of agro chemicals.• GPS tracking is enabled in order for the ASV to hit the scheduled waypoints and for course correction if needed; redundancy is provided by means of RF control as well.• Exploration of the different types of boat architecture and proposing the best physical design elements based on requirements of the client.• Performing sizing of various architecture elements and creating of 3D design through CATIA and analysis through ANSYS.• Construction of a functional prototype and testing of steering, propulsion, navigational and data tracking elements. • The PID control tuning of the catamaran prototype was done on Lake Raleigh by creating way-point based paths on the Mission Planner software, to identify ease of steering issues and improve adherence to way-points. Several strategies including use of jump-points, skewing the turning lines and increasing the acceptance radius and adjustment for wind. Preliminary tests were first carried for a rover on land before exporting them to the water.

Chennai Area, India

Assembly station for Pressure limiting valve in Diesel engines for DELPHI-TVS: Designed an assembly station to assemble a common rail pump PLV and also specified the associated processes and specifications of the machines used to perform these processes, incorporating industry approved standards into the design for Delphi-TVS,Chennai. After several trials with different configurations, a combined linear and rotary arrangement assisted by robots was finalized, which resulted in time savings of 8 seconds per PLV. Given that the company requirements were for 1000 PLV’s per day, this resulted in a savings of nearly 2.2 hrs per day for the company.

Chennai Area, India

Absorption refrigerator using NH3 for rural usage:NH3 based Absorption cycle refrigerator that works without electricity.No moving partsTo be designed to store vaccines primarily in rural areas and can be used by heating with kerosene lamp.Responsibilities:• Was in charge of performing Design calculations for the Absorber, Percolator and the tank. Used Excel Extensively to perform and keep track of calculations and changes made.• Created 3D Solid models of the functional modules using CATIA V5. •Created and completed a requirements list for each module.Solar concentrator for steam generation:Description:•Roof mountable solar thermal concentrator.•Can be used to generate steam for domestic purposes or as a water heater at less hotter periods in the day.•Expensive tracking arrangements and the necessity for moving parts are avoided.Responsibilities:•Generated a requirements list for every module.•Created 3D designs for a parabolic concentrator using SolidWorks and performed a simulation of incident radiation with a moving focus.•Built a simple prototype of the parabolic model and carried out experiments to test for the temperature at the focal point. •Formulated the plan for using a spherical concentrator instead of a conventionally used parabolic concentrator, thus eliminating the need for tracking and thereby doing away with moving parts and their associated failure risks

Master’S Degree, Mechanical Engineering, 3.7

Activities and Societies: ASHRAEReal world project experience and related coursework in product design and development, HVAC and renewable.

Bachelor'S Degree, Mechanical Engineering, Kcg College Of Technology

Activities and Societies: Organizing Committee of Hindustan Young Leader's Conference (HYLC 2015)CGPA of 8.42

Master Of Science - Ms, Mechanical Engineering, 3.67

Activities and Societies: ASHRAE