Niraj P.

Experience

• Sr Design Engineer & CNC Programmer HI TECH SCREW BARREL WORKS · Full-time Mar 2023 – Present 2 yrs 8 mos Ahmedabad, GJ, India At Hi Tech Screw Barrel Works, a precision manufacturer of plastic processing components, I worked on the design and production of screws and barrels used in extrusion and injection molding machines. My key responsibilities included:
  
  Designing custom screw and barrel profiles based on client specifications and polymer application requirements.
  
  Creating detailed 2D drawings and 3D models using TopSolid and SolidWorks.
  
  Programming CNC machines for accurate machining of screws, including complex thread profiles.
  
  Hands-on experience with tread milling, grinding, polishing, and lathe operations.
  
  Collaborating with the workshop team to monitor production quality and ensure precision.
  
  Assisting in optimizing designs for better output, melt flow, and material compatibility.
  
  Gaining practical knowledge of different material grades and heat treatment processes.
  
  This experience deepened my understanding of plastic processing machinery, precision manufacturing, and industrial CNC programming.
• Jr. Design engineer HELIX EXTRUSION TECHNOLOGY PVT LTD. · Full-time Aug 2023 – Mar 2024 7 mos Ahmedabad, GJ, India At Helix Extrusion Technology Pvt. Ltd., a leading manufacturer of plastic extrusion machinery, I was involved in the design, development, and manufacturing of high-performance extrusion machines and components.
  Designing screw, barrel, and die systems for plastic extrusion machines using SolidWorks and TopSolid.
  
  Creating and modifying 2D and 3D CAD models for custom machine assemblies.
  Coordinating with the production and quality teams to ensure component accuracy and assembly fit.
  Supporting new machine builds and client-specific customizations from concept to final assembly.
  
  Assisting in the optimization of extrusion system performance for various polymer applications (e.g., LLDPE, HDPE, etc.).
  This role gave me deep exposure to extrusion technology, machine manufacturing, and CNC-based production workflows.