Stephen Kleppinger
Staff Engineer at Pleno Inc.- Claim this Profile
Click to upgrade to our gold package
for the full feature experience.
Topline Score
Bio
Experience
-
Pleno Inc.
-
United States
-
Biotechnology Research
-
1 - 100 Employee
-
Staff Engineer
-
Dec 2022 - Present
Working to bridge the gap between bio engineering research and device engineering development Working to bridge the gap between bio engineering research and device engineering development
-
-
-
Accel Robotics
-
United States
-
Software Development
-
1 - 100 Employee
-
Sr. Systems Engineer
-
Feb 2021 - Nov 2022
Designed and led a team to build a complete data pipeline, Postgres/Elastic data lake, and custom Golang APIs to enable deep learning on customer data from autonomous retail environments. Revamped the original design to minimize monthly operation costs. Led CNN-based computer vision project to OCR nutrition label information from product appearance onboarding images. Developed in the Python based store automation backend in both new algorithm implementation and refactoring backend design. Improved new product onboarding time by 20x. Implemented CI/CD pipelines for multiple products, setting up automated image builds and test runs through Github Actions and Jenkins. Set up new BI division, complete with custom D3, Python, and Tableau secured backend. Show less
-
-
-
SOLUTE
-
United States
-
Defense and Space Manufacturing
-
100 - 200 Employee
-
Sr. Systems Engineer
-
Dec 2019 - Feb 2021
Designed Kalman Filter based real-time signal processing algorithms for maneuvering track class problems, implementing in server side applications. Designed and oversaw manufacture of UAS drones, implemented with unique payloads for public/private sector customers. Achieved 70% reduction in variance of key variables through novel implementations of cutting edge signal processing research. Worked with customers to define and manage system-level requirements and successfully constrained the system to work above expectations and within requirements. Show less
-
-
-
-
Volunteer
-
Jul 2018 - Dec 2019
-
-
-
ASML
-
San Diego
-
Controls Engineer
-
Jul 2016 - Jul 2018
Developed high frequnecy PI control loop in Simulink for microsecond-scale tuning of optics, optimizing for a theoretical model-based maximum. This contol loop replaced an error-prone dither loop with the introduction of new optics metrology. Developed KPIs to identify high-speed error signatures in low frequency data, including a novel implementation of total variation limited regularised differentiation. Applied these KPIs against months of data to identify new failure signatures. Applied modern machine learning methods in multiple projects data exploration phases. Used Random Forest Regression and Neural Networks to develop much more powerful predictors, identifying otherwise unknown inflection points in long-term trends and providing guidance during development of human-understandable white box models. Show less
-
-
-
Cymer\ASML
-
Greater San Diego Area
-
System Engineer
-
Sep 2013 - Jul 2016
I am responsible for the development of system level experiment design, execution, and analysis that focus on the increased power output of next generation EUV sources. I also develop and construct both software and hardware test tools focusing on generating diagnostic information on R&D machines. I have traveled as a expert technical adviser to aid local teams at customer fabs in the operation of next-generation EUV sources. I am responsible for the development of system level experiment design, execution, and analysis that focus on the increased power output of next generation EUV sources. I also develop and construct both software and hardware test tools focusing on generating diagnostic information on R&D machines. I have traveled as a expert technical adviser to aid local teams at customer fabs in the operation of next-generation EUV sources.
-
-
-
Center for Plasma Material Interactions at University of Illinois
-
Urbana-Champaign, Illinois Area
-
Research Assistant
-
Oct 2011 - Aug 2013
I assisted two graduate researchers in their research on the use of thermal plasma interaction with materials to develop better plasma models and create new silicon substrates for solar cell development. I also lead a research effort on DBD-plasma deposition on paper substrates and powder deposition for chewing gum manufacturing. I worked on redesigning a plasma torch apparatus to allow for a inert flame sheath. I assisted two graduate researchers in their research on the use of thermal plasma interaction with materials to develop better plasma models and create new silicon substrates for solar cell development. I also lead a research effort on DBD-plasma deposition on paper substrates and powder deposition for chewing gum manufacturing. I worked on redesigning a plasma torch apparatus to allow for a inert flame sheath.
-
-
Education
-
Northwestern University
Master of Science - MS, Data Science -
University of Illinois at Urbana-Champaign
Bachelor's Degree, Nuclear, Plasma, and Radiological Engineering