Summary
Overview
Work History
Education
Skills
Certification
Languages
Personal Information
Hobbies and Interests
MACHINERY EXPERIENCE
OTHER EXPERIENCE
Timeline
Generic

MAMIDI PHANI KUMAR

Visakhapatnam

Summary

Seeking a role which helps me in leveraging my current experience and gaining expertise in new areas.

Overview

24
24
years of professional experience
1
1
Certification

Work History

R&D Manager

Vaibhav Global Limited
05.2025 - Current
  • Results-driven R&D Manager - experience in jewelry manufacturing, specializing in end-to-end process development from CAD and modeling to multi-metal casting and final production, In VGL company resolving complex technical issues across three production units, improving process efficiency, reducing rework, and enhancing product quality. Adept at working with a variety of metals including Gold, Platinum, Palladium, Silver, Brass, and Bronze. Proven expertise in driving product innovation, process optimization, and high-precision execution for luxury jewelry brands. (AUDRY ROSE, SISTER-P, RHAPSODY, D'JOY, LUXURIANT, EVERTRUE, LUX ORO, THOM, TOUS, QUINCE, etc...)
  • Key Responsibilities & Contributions:
  • 1. Multi-Unit Coordination (Design & Metal Issues):
  • In VGL Collaborated across 3 production units to resolve design-to-metal transformation challenges. (Gold, Platinum, Palladium Cell, Silver Cell, & Brass, Bronze cell)
  • Standardized feedback loops between design, CAD, and production teams to reduce misalignment and metal rejection.
  • 2. CAD, Model Making & Mould Development:
  • Directed end-to-end development of CAD models ensuring manufacturability and design accuracy.
  • Led troubleshooting of model-making defects to improve quality.
  • 3. Waxing Process Oversight:
  • Implemented process controls in wax injection and handling to minimize shrinkage, distortion, and alignment problems.
  • Introduced SOPs and technician training programs to boost first-pass yield in the wax department.
  • 4. Tree Making Supervision:
  • Engineered tree design for optimal metal flow, reducing turbulence, Shrinkage porosity, and rejection rates.
  • Introduced symmetrical tree structures and metal-specific layouts to ensure consistent casting quality.
  • 5. Investment Preparation & Quality Management:
  • Investment material handling and burnout cycles to eliminate surface defects and cracking.
  • Integrated vacuum mixing and controlled drying to maintain mold strength and casting success.
  • 6. Casting Process Management (Gold, Platinum, Palladium, Silver, Brass & Bronze):
  • Casting: Induction, Centrifugal, Vacuum Pressure Casting & Hand pour Castings
  • Managed alloy-specific casting protocols using vacuum and induction casting machines.
  • Resolved metal-specific casting defects (e.g., shrinkage, gas porosity, oxidation) through thermal and flow simulations.
  • 7. Production Troubleshooting & Continuous Improvement:
  • Identified and corrected systemic production inefficiencies via root cause analysis.
  • Did lean manufacturing initiatives, reducing rework and improving on-time delivery rates.
  • CAD to Casting critical issues on design -production problems solving.
  • Process Standardization & Quality Control
  • Interdepartmental Coordination
  • Root Cause Analysis & Process Improvements
  • Maintaining High-End Jewelry Manufacturing Standards

Asst. Department Manager

Worldwide Diamond and Jewelry manufacturers Pvt. Ltd.
02.2018 - 09.2024
  • Daily production & resource planning for the whole department.
  • Ensuring the completion of daily individual and total production output.
  • Training and optimizing team for quality and productive way.
  • Giving assistance to model makers for model corrections in-order to achieve good productivity and quality.
  • Achieved 95% to 98% 3rd party QC pass by Mr. Christophe Nocher, meeting CORADAM QC standards.
  • Collections worked on - Halo & Martini(Lightbox ,UK), Almasika, Heart(Loquet) and SIGNET (USA)
  • Worked on CNC machines like Quazer-3(Diamond sawing), Merlin(Diamond color grading) and Opsydia Tagging machine(Diamond tagging)
  • Ice Stones prime process.(to remove poly-crystalline)
  • Managing the below laser operations in Diamond production:
  • 2P Laser sawing on STPL, SLTL and Sai Impex.
  • Multi sawing & pie cutting on STPL.
  • STPL sarin software Magnus Ace
  • SLTL.
  • 4P Laser cutting (Table, Crown, Girdle & Pavilion) on STPL, SLTL and Sai Impex
  • As a whole, team size of 150 manpower, 55 machines and with an output of 30000 stones per month is being handled.
  • Six sigma yellow belt certified and have completed green belt training ( by Mr. Kamal Sehgal )

Senior officer for upstream

Titan company ltd
02.2014 - 01.2018
  • Assisting the management in personnel, production, material and maintenance decision making.
  • Handling production operations from wax injection to quality checking of casting.
  • Training new people on operating casting machines and other machinery related equipment.
  • Maintaining record of defects and capturing the data on daily basis.
  • Corrective action & preventive action data for product quality improvement.
  • Handling raw materials and monthly stock verification.
  • Working on new concepts for the NPD.
  • Coordinated with cross-functional teams to streamline operations, enhancing productivity and operational excellence.
  • Resolved customer queries and problems using effective communication and providing step-by-step solutions.
  • Trained and mentored employees to maximize team performance.
  • Demonstrated consistent hard work and dedication to achieve results and improve operations.
  • Maximised customer engagement and satisfaction by delivering excellent customer service.
  • Developed team communications and information for meetings.

Refining HOD

Manappuram Jewellers Pvt. Ltd.
07.2013 - 01.2014
  • Daily wise monitoring the refining process on aspects like recovery, raw material consumption.
  • Refining for the exchange gold, scrap dust, extracting fine gold 30Kgs in a month , making gold bars and maintaining the stock records up to date.
  • Maintaining department free from hazardous fumes and keep in healthy environment.

Jewellery manufacturing instructor

Trau Bro’s Diamond
02.2011 - 12.2012
  • Teaching and controlling the students of various departments like designing, master making, lost wax casting, filing, polishing, rhodium.
  • Monthly stock verification and working on new concepts for the company website.

Production Assistant.

R Steinmetz & sons pvt ltd. (Steora Jewellery)
06.2004 - 07.2008
  • Controlling and assistance to various departments like NPD, model making, waxing,filing, setting, enameling, polishing, rhodium, quality control and refining.
  • Monthly production reports of the employees.
  • Approving the samples of the customers.
  • Train the new employees in various departments like filing, setting, polishing and quality control.
  • Collections worked - Sotheby's, Bafta, Alies london, Movado, Johnnie Walker 24KT gold plate and watches collection.

Casting Supervisor

LID Jewellers Pvt Ltd
01.2002 - 05.2004
  • Lost wax casting with diamonds and gem stones.
  • Maintaining gold, silver and consumables stock.

Education

B.Com -

Kakatiya University
Andhra Pradesh

Skills

  • Lean tools like 5S, Kaizen
  • Client communication
  • Process change, control and standardization
  • Employee engagement

Certification

  • Six Sigma Yellow belt certified.
  • Hardware networking, MCSA certified. Visakhapatnam IIHT.
  • Industrial training institute - Fitter.

Languages

1,A1,1,A1,4,B2,4,B2

Personal Information

Hobbies and Interests

Outing with friends.

MACHINERY EXPERIENCE

      Casting machines:

  • Yasui VPC D & F.
  • Galloni Centrifugal casting (platinum).
  • Neutec J2r (Semi-Auto).
  • Schultheiss VPC 100.
  • Neutec flow logic 610.
  • Argenta VPC(Semi-Auto).
  • Hand pouring casting.

    Refining machines:

  • Venus.
  • Micro gold.
  • Manual refining.

     Laser Cutting CNC:

  • Quazer
  • Opsydia
  • SLTL
  • STPL
  • ICE stone Prime
  • Multi sawing STPL SARIN - ACE

  

OTHER EXPERIENCE

  • Worked as a Marketing manager in Yes bank and OBC bank (venture infotek global pvt ltd). from July 2010 - Jan 2011.
  • Created my own opportunity and started a partnership business for two years in Poultry & Real estate.
  • Done Apprenticeship in Sunrises company, Shipyard Visakhapatnam in the year 2001.

Timeline

R&D Manager

Vaibhav Global Limited
05.2025 - Current

Asst. Department Manager

Worldwide Diamond and Jewelry manufacturers Pvt. Ltd.
02.2018 - 09.2024

Senior officer for upstream

Titan company ltd
02.2014 - 01.2018

Refining HOD

Manappuram Jewellers Pvt. Ltd.
07.2013 - 01.2014

Jewellery manufacturing instructor

Trau Bro’s Diamond
02.2011 - 12.2012

Production Assistant.

R Steinmetz & sons pvt ltd. (Steora Jewellery)
06.2004 - 07.2008

Casting Supervisor

LID Jewellers Pvt Ltd
01.2002 - 05.2004

B.Com -

Kakatiya University

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MAMIDI PHANI KUMAR