Engineer Design
Resume:
Resume of:
DENNIS B. ZOLLMAN
**** ******** ******, **** ******, CA 93065
Cell Phone: 805-***-**** email: *.*******@*********.***
Summary
Education: ●BSEE degree from Portland State University, Portland Oregon in 1983. ●Principals of Radar course at Hughes Aircraft Company in 1984. ●Hughes Aircraft Company’s Subcontractor Value Engineering Training Course in 1985. ●Recently received Six Sigma Green Belt certificate from Villanova University.
Overview: Self –starter with some management experience and a record of successfully completing projects requiring the design, implementation and integration up to the system level of military and commercial analog and high-speed digital electronics operating from DC up to 34 GHz for use in ground and airborne applications.
Excellent troubleshooting skills and a history of working with in house Quality department and customer’s Quality and Engineering departments in isolating and resolving issues involving product design, implementation, and performance while meeting the requirements of applicable standards.
Special Skills
Providing project leadership, project management, and acting as the customer’s technical interface while performing as the project engineer responsible for converting the customer’s requirements into design requirements.
Working with the Quality department to select and approve outside vendors, identify and document production processes, and to improve and maintain product quality.
Preparing and presenting critical design reviews for systems and circuit cards.
Performing test engineering including the defining and performing of all testing, generating of documented processes and procedures for electromechanical assembly, testing procedures and processes.
Performing product failure analysis and generating detailed failure analysis reports.
Designing of RF and Microwave circuits and systems using passive and active components operating in frequency bands from 30 MHz to 34 GHz used in Radar Target Generator Systems, Active Interference Cancellation Systems, Receivers, Transmitters, and Special Test Equipment.
Computer Aided design and analysis of a variety of circuits using Ansoft HFSS, Eagleware Genesys 7, SPICE, and ICAPS software.
Designing and testing of products for operation under environmental conditions including temperature, EMI and EMC to MIL-STD-461, RTCA DO-160 or to FCC part 15 requirements.
Designing and testing of digital fiber-optic transceivers and transponders operating at standard bit rates from 156 Mbps to above 10 Gbps.
Designing and testing of switch mode and linear power supplies including Power Factor Corrected AC to DC converters and isolated and non-isolated DC to DC voltage converters.
Directing the design and layout of printed circuit boards used in power supplies, microwave circuits, analog circuits, high-speed digital and mixed circuit implementations.
Experienced in testing of circuits using Oscilloscopes, Spectrum Analyzers, Two Port S-parameter automatic Network Analyzers, Digital Communications Analyzers, Bit Error Rate Testers, Power Analyzers, and Environmental Test Chambers to test and qualify electronic circuit cards and assemblies.
Experienced in using software programs to perform schematic capture, generate engineering documentation, and for preparing customer presentations.
Work Experience Highlights
Plexus; Neenah Wisconsin Technical Center – July 16, 2012 to October 2, 2012
Senior Analog Engineer (on Contract through American Contract Group) responsible for:
Performing the electrical stress derating study of the principal integrated circuit components being used in the design of the main card assembly of a medical instrument used in the performance of EKG/Blood Pressure monitoring.
Aitech Defense Systems, Inc. – January 30, 2011 to February 6, 2012
Senior Analog Engineer, Test Engineer and Failure Analysis Engineer responsible for:
Reviewing and updating test procedures for engineering design verification testing and for production testing of new and existing circuit card assemblies, powered enclosures using VME and Compact PCI processor card assemblies, digital and analog interface cards, and AC-DC or isolated DC-DC power supplies.
Defining and performing tests to verify customer reported failures, directing repairs of failures, and writing failure analysis and corrective action required reports for customer returns.
Specifying and obtaining test equipment required to perform engineering and production testing of circuit card assemblies and systems sold as ruggedized wide operating temperature range equipment.
Aitech Defense Systems, Inc. – July 2006 to July 2010
Senior Analog Design Engineer / Production Test Department Manager responsible for:
Performing analog circuit design and analysis for power conversion, digitally controlled analog circuits, A/D and D/A converters, selecting and specifying components, performing schematic capture, direction of PWB design and layout, transition of designs to production.
Performing preliminary and critical engineering design reviews prior to design release.
Provide technical support for identifying and resolving issues in the manufacturing of existing products.
Specifying test equipment, planning production and engineering testing, scheduling and performing failure analysis of customer returns and generating failure analysis reports for presentation to customer’s Quality and Engineering departments.
Directing and scheduling of all Test department activities.
Managing and providing for the training of the 2 Test Engineers and 2 Test Technicians of the test department.
Providing engineering production support, writing test procedures and reports, and reviewing Engineering department designs.
Optical Communication Products – November 2001 to December 2005
Senior Engineer responsible for:
Designing and implementing an EMI test and measurement system for use on multiple fiber optic transceiver modules.
Working with the Quality and Engineering departments of customer companies to define and resolve system level EMI and ESD issues with Fiber Optic Transceivers.
Lead Engineer performing the design, directing the circuit board layout, performing design verification testing, and transitioning to production of Fiber Optic Transceivers and Transponders operating from 156 Kbps to 10 Gbps.
KOR Electronics, Inc. – October 1996 to October 1999
Staff/Project Engineer responsible for:
Performing the design, analysis, system integration, test and verification of RF and Microwave Circuits used in RADAR Target Generation and RADAR Environment Simulator systems.
Designing wide bandwidth frequency up and down conversion schemes, high dynamic range receivers, and transmitters to meet customer specified system level spurious and noise performance requirements.
Selecting and specifying components used in RF and microwave circuits such as mixers, filters, amplifiers, high speed A/D and D/A converters, and interconnection wiring and connectors.
Developing and designing electronic systems with customers, program managers and digital design engineers in a team environment to insure that these systems met customer requirements and were delivered on time and in budget.
B/E Aerospace, In Flight Entertainment Division – August 1995 to August 1996
Contracted Consulting Engineer responsible for:
Developing system AC power distribution unit and designing power factor corrected AC to DC switch mode power supplies for use in in-flight video on demand entertainment system for commercial aircraft.
RANTEC Microwave and Electronics, Inc. – June 1994 to June 1995
Project/Design Engineer responsible for:
Designing and testing of input power filter functions for use in multiple output power supplies.
Designing and testing of custom power supplies using Modular AC to DC and DC to DC converts for military applications.
American Nucleonics Corporation – March 1986 to October 1993
RF and Microwave Project and Design Engineer responsible for:
Designing, analyzing, implementing, directing board layout for, testing of RF and Microwave circuits, systems, and associated power supplies used in active interference cancellation systems used in military ground and airborne vehicles.
Working as the company’s technical lead engineer and interfacing with customers to define the cost, performance parameters, and size and mounting requirements for single and multiple channel interference cancellation systems.
Hughes Aircraft Company, RADAR Systems Group – January 1983 to March 1986
Member of the Technical Staff, RF and Microwave Test and Production support Engineer responsible for:
Working with manufacturing test and quality control personnel to maintain the quality required by the military for the manufacture of waveguide parts, waveguide assemblies, and planar array antennas.
Finding the root cause of failures and defining changes to processes and procedures to reduce or eliminate similar future failures.
Maintaining and repairing two high power output (10 kW) X-band test stations used to perform power breakdown testing on waveguide components, waveguide assemblies, and planar array antennas.
Selecting and justifying commercial test equipment such as power supplies, oscilloscopes, spectrum analyzers, automated S-parameter test systems, power meters variable attenuators, etc., for purchase and use as part of test stations used to conduct testing of product.
Designing and implementing special test equipment (STE) and test stations used in the production test of microwave assemblies, subassemblies, and planar array antennas manufactured for use in military avionics (F-14, F-15, F/A-18 airborne RADAR systems).
U.S. Air Force – October 1973 to January 1978
Active duty enlisted serviceman responsible for:
Performing the troubleshooting, repair and maintenance of F-4 airborne weapons control system (Westinghouse AN/APQ 120 RADAR). Shift supervisor for 3 of the 4 years served, responsible for making work assignments to 3 to 4 two man teams performing work on F-4 fighter aircraft weapons control systems.
Revamping of the maintenance concept used at Seymour Johnson AFB to ensure that personnel returning from Asia at the end of the Vietnam Conflict were retrained to perform maintenance to ensure continued operability of the system and not just “quick turnaround time” of the aircraft. Creating and directing a maintenance program structured to provide 24/7 support of the aircraft while eliminating the need for overtime and/or additional weekend assignments for personnel.
Supervising and directing the squadron of weapons control system maintenance personnel that achieved an operational rating of greater than 90% for the F-4 while working under the squadron maintenance concept at Hahn Air Force Base in Germany.
Rank at time of honorable discharge: E-4 Non-commissioned officer (Sargent).
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