Srijan Kumar S.

Experience

• 2 years experience IonQ · Full-time Oct 2024 – Present 1 yrs 4 mos Bothell, WA, United States Advanced CAD Development: Lead the mechanical design of complex hardware for quantum computing systems, creating high-fidelity 3D assemblies and sub-assemblies in SolidWorks
  
  Simulation and modeling in the optic-mechanical domain for DFM, DFT including analysis of the design (beam path propagation, FEA Structural, Stress-strain analysis and thermal analysis in solid works). Modeling stress-strain analysis the opto-mechanical part and its effects of optical performance. This includes creation of 2D and 3D drawing with GD&T, design optimization. Design evaluation and risk analysis.
  
  
  Precision Tooling & Fixtures: Design and prototype high-precision mechanical testing plates and custom fixtures required for nanometer-scale alignment and assembly.
  
  GD&T & Tolerance Analysis: Apply advanced GD&T to 2D engineering drawings to ensure 100% interchangeability of parts sourced from diverse global vendors. Perform tolerance stack-up analysis.
  
  Lifecycle Management: Own the design process from prototyping, coordinating with internal machine shops and external vendors to select optimal fabrication techniques (precision machining vs. 3D printing).
  
  Creating documentation for assemblies, quality control data & drawing for opto-mechanical and tolerance analysis - with the help of tolerance analysis, geometric dimension & tolerance and defining the material types, requirements, analyze and optimize tolerances. Making drawing with GD&T, design evaluation with tolerance stacking and analysis.
  
  Cross-Functional collaboration with Physicists and Engineers - Work with partner teams to gather requirements for a common optomechanical test infrastructure. Interface with system owners, stakeholders to help develop verification tooling and strategies
• Mechanical Deisgn Coherent LaserSystems GmbH & Co KG · Full-time May 2022 – Sep 2024 2 yrs 4 mos NJ, United States Designing of prototypes applying the appropriate fabrication technique – This includes designing of metal, plastics, precision machining and 3D printing around optics, testing jigs, apparatus and to qualify the optical components and the laser beam characterization.
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  NPI (New Product Introduction): Collaborated with cross-functional teams to translate high-level requirements into detailed mechanical specifications and CAD models for R&D prototypes.
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  Vendor Coordination: Acted as the primary technical point of contact for external workshops, resolving DFM issues and reviewing QC data to ensure parts met strict dimensional requirements.
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  Failure Analysis: Led troubleshooting efforts for mechanical failures in sub-assemblies, identifying stress-induced failure modes and optimizing designs to increase system reliability.
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  FEA & Simulation: Conduct rigorous mechanical and thermal simulations using COMSOL and SolidWorks Simulation to predict structural deformation, stress concentrations, and heat dissipation in critical hardware.
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  Research and development with NPI engineer, Laser engineers, optical scientists, test engineers and multi-disciplinary departments- Leading junior engineers, trainees, and technicians -Ability to work in multidisciplinary teams (optical engineers, laser engineers, mechanical engineers etc.) in building, testing, verifying and creating documents for prototypes design systems.