Engineer Electrical Engineering
Resume:
Uppili Krishnamachari, Ph.D.
********************@*****.***
https://gist.github.com/ukrishna
Hoboken, NJ 07030
Relevant Experience
Data Scientist, KPMG 2014-present
Woodcliff Lake - New Jersey
• Development of Python algorithms for valuation of accounting/audit risk
• Creation of Python interface to Apache Hadoop map/reduce implementations for distributed computing
• Implementation of linear programming/optimization network flow techniques for accounting analysis
• Use of R programming for predictive analytics and linear regression models
• Unsupervised machine learning methods such as frequent itemset mining and association rules
Data Science Consultant, Mita Litos 2012-2014
Scotch Plains - New Jersey
• Development of autoregressive moving average(ARIMA) predictive financial models in Python
• Django web framework programming for user input time series predictive modeling
• Kivy Python programming to deploy predictive modeling apps on iOS and Android
• Excel embedded Python HTML data scraper to extract company balance sheet information
• Financial time series prediction using support vector machine(SVM) and neural net models in R
Senior Staff Engineer, Princeton Lightwave 2013- 2014
Cranbury – New Jersey
• Cross-team collaboration in design and modeling of 3D laser radar cameras
• Statistical modeling of camera pixel dark count rate and crosstalk
• Python programming to perform Monte Carlo simulations of 3D camera pixel behavior
• Modeling and design of camera subcomponents and subsequent communication with end users
Process Development Engineer, Binoptics Corporation 2011- 2013
Ithaca – New York
• Large scale yield and data quality analysis for semiconductor laser industry
• Design of industry leading laser product that sold over 1M laser packages in 2013
• Interviewing and vetting prospective fabrication/testing engineers
Graduate Student Researcher, Department of Electrical and Computer Engineering 2005-2011
University of California – Santa Barbara
• Fabrication of high linearity coherent optical receivers for fiber optic links
• Design and fabrication of novel ultra-compact optical beam splitter
• Systems level analysis and testing of high speed optoelectronic communication devices
Technical Staff, Medical Physics 2000-2002
University of Chicago Hospital
• Research in novel method of intensity modulated radiation therapy(IMRT) for cancer treatment
• Analysis of acute gastrointestinal toxicity data using logistic regression analysis
GMAT Instructor, Chicago Office Summer 2001
The Princeton Review
• Instructed preparatory course for GMAT exam
Education
UNIVERSITY OF CALIFORNIA – SANTA BARBARA
Ph.D. in Electrical Engineering, September 2011
Dissertation topic: Ultra-Compact Integrated Coherent Receiver for High Linearity RF Photonic Links
Advisor: Professor Larry Coldren
UNIVERSITY OF CALIFORNIA – SANTA BARBARA
Masters in Electrical Engineering
Advisor: Professor Larry Coldren
UNIVERSITY OF ILLINOIS – URBANA CHAMPAIGN
Bachelors in Electrical Engineering
Advisor: Professor Kent Choquette
Skills
Computer: Python: Django (web framework), Kivy (Andoid/iOS app deployment), Pulp/Gurobi (Optimization)
Scikit-learn(machine learning), Pandas(Data frames), Mayavi/NetworkX (Data Visualization), Numpy, Scipy ;
R Programming packages: forecast(time series forcasting), fARMA(Auto-regressive moving averaage models),
fGARCH(heteroskedastic models), randomForest, arules(association rule generation), sqldf (SQL queries) ;
Apache Hadoop, Apache Web server, Mod_wsgi, postgreSQL, Excel VBA, Microsoft Word, Powerpoint,
Language: Fluent in English and Tamil. Conversant in Spanish and Japanese
Presentations and Publications
Itzler, M.A; Krishnamachari, U.; Entwistle, M.; Jiang, X.; Owens, M.; Slomkowski, K., "Dark Count Statistics in
Geiger-Mode Avalanche Photodiode Cameras for 3-D Imaging LADAR," Selected Topics in Quantum Electronics,
IEEE Journal of, vol.20, no.6, pp.1,11, Nov.-Dec. (2014).
Krishnamachari, U., Coherent Receiver for High Linearity Radio Frequency Photonic Links. Lambert
Publishing. ISBN 978-3-659-58207-3, Print, (2014).
Krishnamachari, U.; Ristic, S.; Chen, C.-H.; Johansson, L.; Ramaswamy, A.; Klamkin, J.; Norberg, E.; Bowers, J. E.;
Coldren, L. A.;, "InP/InGaAsP-Based Integrated 3-dB Trench Couplers for Ultra-Compact Coherent Receivers,"
Photonics Technology Letters, IEEE, vol.23, no.5, pp.311-313 (2011).
Krishnamachari, U., Ristic, S., Ramaswamy, A., Johansson, L. A., Chen, C. H., Klamkin, J., Coldren, L. A.
Integrated coherent receiver for linear optical phase demodulation. Microwave and Optical Technology Letters,53(10),
2343-2345 (2011).
Erik J. Norberg, John S. Parker, Steven C. Nicholes, Byungchae Kim, Uppili Krishnamachari, and Larry A. Coldren,
"Etched beam splitters in InP/InGaAsP," Optics Express 19, 717-726 (2011).
Larry A. Coldren, Steven C. Nicholes, Leif Johansson, Sasa Ristic, Robert S. Guzzon, Erik J. Norberg, and Uppili
Krishnamachari, "High Performance InP-Based Photonic ICs A Tutorial," J. Lightwave Technol. 29, 554-570
(2011).
Krishnamachari, U.; Ristic, S.; Ramaswamy, A.; Johansson, L.A.; Chin-Hui Chen; Klamkin, J.; Piels, M.; Bhardwaj,
A.; Rodwell, M.J.; Bowers, J.E.; Coldren, L.A.;, "Ultra-compact integrated coherent receiver for high linearity RF
photonic links," Microwave Photonics (MWP), 2010 IEEE Topical Meeting on, vol., no., pp.27-30, 5-9 Oct. 2010.
Ramaswamy, A.; Johansson, L.A.; Krishnamachari, U.; Ristic, S.; Chen, C.; Piels, M.; Bhardwaj, A.; Coldren, L.A.;
Rodwell, M.J.; Bowers, J.E.; Yoshimitsu, R.; Scott, D.W.; Davis, R.;, "Demonstration of a linear ultra-compact
integrated coherent receiver," Microwave Photonics (MWP), 2010 IEEE Topical Meeting on, vol., no., pp.31-34, 5-9
Oct. 2010.
L. A. Johansson, U. Krishnamachari, A. Ramaswamy, J. Klamkin, S. Ristic, H. Chou, L. A. Coldren, M. Rodwell,
and J. E. Bowers, "Linear Coherent Optical Receivers," in Optical Fiber Communication Conference, OSA Technical
Digest, Optical Society of America, 2010.
Erik J. Norberg, John S. Parker, Uppili Krishnamachari, Robert S. Guzzon, Larry A. Coldren
InGaAsP/InP Based Flattened Ring Resonators with Etched Beam Splitters, Advances in Optical Sciences: OSA
Optics & Photonics Congress and Tabletop Exhibit, Honolulu, Hawaii, USA, 2009.
J. Klamkin, L.A. Johansson, A. Ramaswamy, N. Nunoya, S. Ristic, U. Krishnamachari, J. Chen, J. E. Bowers, S. P.
DenBaars, L.A. Coldren, "Highly Linear Integrated Coherent Receivers for Microwave Photonic Links," Optical Fiber
Communication (OFC) (invited), paper no. OMK4, San Diego, CA, March 2009.
C. S. Wang, Y.-C. Chang, U. Krishnamachari, J. W. Raring, and L. A. Coldren, “Short-cavity 980 nm DBR lasers
with quantum-well intermixed integrated high-speed EA modulators,” IEEE J. of Selected Topics in Quantum
Electronics, vol. 13, no. 5, pp. 1151–1156, 2007.
U. Krishnamachari, M. Borgstrom, B. J. Ohlsson, N. Panev, L. Samuelson, W. Seifert, M. W. Larsson, and L. R.
Wallenberg “Defect-free InP nanowires grown in [001] direction on InP”,Appl. Phys. Lett. 85, 2077 (2004).
U. Krishnamachari, F. Capasso, M. Trocolli, C. Gmachl, and A. Belyanin: ‘Quantum Cascade Laser with Active
Raman Region’, DARPA/ONR Workshop on Quantum Optics, Jackson Hole, Wyoming, 2003.
A. Danner, J.J. Raftery Jr., U. Krishnamachari, J.C. Lee, N. Yokouchi, and K.D. Choquette: ‘Scaling of small-
aperture photonic crystal vertical cavity lasers’, Conference on Lasers and Electro-Optics, Baltimore, MD, 2003.
J.C. Roeske, A.E. Lujan, U. Krishnamachari and A.J. Mundt. A dose-volume histogram analysis of acute
gastrointestinal toxicity for gynecologic patients receiving intensity-modulated whole pelvic radiotherapy. 43rd Annual
Meeting of the American Society of Therapeutic Radiology and Oncology, November 2001.
J.C. Roeske, A.E. Lujan, U. Krishnamachari, A.J. Mundt, “Dose–volume histogram analysis of acute
gastrointestinal toxicity for gynecologic patients receiving intensity modulated whole pelvic radiation therapy”, Int J
Radiat Oncol Biol Phys. Vol. 51, Issue 3, Supplement 1, pp. 221-222, 2001.
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