Bill Lessmann

Sr. Test Systems Development Engineer at Optics 1
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Londonderry, New Hampshire, United States, US

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Experience

    • United States
    • Defense and Space Manufacturing
    • 1 - 100 Employee
    • Sr. Test Systems Development Engineer
      • Jan 2018 - Present
    • United Kingdom
    • Defense and Space Manufacturing
    • 700 & Above Employee
    • Sr. Prin. Test Engineer
      • Oct 2016 - Jan 2018
    • Advertising Services
    • Sr. Member of Technical Staff
      • Dec 2015 - Oct 2016
    • Sr. Electrical Engineer
      • Apr 2013 - Aug 2015
    • United States
    • Architecture and Planning
    • 1 - 100 Employee
    • Test Eng. Manager
      • May 2012 - Apr 2013
    • Sr. Electrical Engineer
      • Nov 2008 - Jan 2012

      · Performed schematic design of high density, FPGA based (Virtex 5) rigid-flex-rigid printed circuit board (18 layer) for gimbal based airborne systems. Interfaces included MII to ARM9 µP, I²C, SPI, XAUI, 10Gbs SFP+ fiber channel. · Designed and developed 750W , 5 output, DC/DC Power Supply for gimbal-based systems. · Designed and developed automated test equipment for product qualification of thermal imaging devices, developing NUC table methods and automated dead pixel replacement. Developed LabView based software, which acquired direct digital images, parallel and Camera Link. · Supported field testing of UAV integration of gimbal systems at government sites. · Interfaced directly with Design and Manufacturing Engineering groups on the introduction of new products into manufacturing. · Developed software tools to aid in the development cycle of new products and debug tools to reduce trouble-shooting efforts in production. · Developed software and hardware to test and qualify IMU’s. Show less

    • Egypt
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Test Eng. Manager
      • Jan 2002 - Nov 2008

      · Managed Test Eng. Group of 6 Engineers & 2 Technicians, maintaining a lead technical role. · Recruited and mentored new hires, managed programs / resources. Conducted Performance Reviews. · Designed and developed universal automated test equipment for automatic bias and temperature offset calibration for uncooled microbolometer FPA-based thermal imaging devices. Developed LabView based software, which acquired direct digital images, controlled the Blackbody Source and Thermal Chamber to calculate proper unit calibration over operating temperature range. System capable of testing up to 6 units/run. · Developed LabView Image Acquisition software for various RS-170 camera based optical testing systems. · Designed and developed potentiometer calibration station, which automatically programmed I²C Serial EEPROM. · Interfaced directly with Design and Manufacturing Engineering groups on the introduction of new products into manufacturing. · Developed software tools to aid in the development cycle of new products and debug tools to reduce trouble-shooting efforts in production. · Developed Automatic Laser Calibration Equipment across all product lines. Show less

    • Sr. Test Development Engineer
      • Feb 1995 - Jan 2002

      · Designed and Developed automated system-level test equipment for DWDM Telecom transmission layer equipment. (Measurements include: OSNR, Spectral Flatness, Optical Power, Optical and Electrical BERT.) Test Systems capable of testing highly complex module / channel configurations. · Designed and Developed automated test equipment for electronic and electro-optical assemblies. (Electrical I/O, Optical Modem, Switch-mode Four output Power Supply) · Developed testing software using National Instruments LabView software. · Developed new product test specifications and procedures by interfacing directly with Design Engineering and New Product Introduction teams in Milan and Monza, Italy. · Developed testing methods and procedures for optical amplifier, optical multiplexer, optical demultiplexer products, and component-level testing for optical filters, splitters / couplers, and solid-state lasers. · Responsible for new product introduction (’95-‘97) and current product transfer into the Lexington, SC manufacturing facility. Show less

    • Germany
    • Mining
    • Sr.Test Eng. / Team Leader
      • 1988 - 1995

      · Responsible for the quoting, designing, buying, and development (build and debug) of up to $5,000,000 annually of custom, high volume test equipment. · Supervised a design team (6 Test Engineers, 2 Technicians) in the development a universal (CORE) Air-Bag controller (safety critical) test system. · Responsible for the development and support staff of manufacturing testing (In-Circuit, Environmental Stress Screening, Functional Test, and Quality Audit) of 2 million air-bag controller modules per year. Test systems capable delivering <200 p.p.m. quality levels. · Conceptualized and designed (analog and digital) the CORE system capable of testing product for 10 different customer designs and over 40 different platforms. Reduced tester cost by 50%. · Structured, supervised, and co-developed universal testing software (25,000 lines) for the CORE system. .EXE file controlled by an external text-based command file. · Coordinated and interfaced with an outside vendor in the construction of 50+ CORE systems. · Developed production testing specifications, test coverage matrices, and testing process flow. · Designed tester interface and custom control boards for PC/AT (ISA) and industrial (STD) computer architectures. · Participated in many Concurrent Engineering teams to improve design for manufacturability (testability). Improvements resulted in 60% reduction in test time and 25% increase in test coverage. · Designed and developed hardware and software for testing various automotive controller units, high reliability switch-mode power supplies (IBM) and 14 channel network controllers (IBM AS-400). · Specified and contracted, with an outside vendor, the development of a 1 MegaWord/second, DSP controlled, 13 channel (differential) input, 2 channel output Analog Data Acquisition card. · Worked directly with Caterpillar Sensors and Diesel Engine Management Group on PEEC, 3176, & ADEMII on new testing strategies, DFM/DFT improvements. Show less

Education

  • Indiana State University
    1981 - 1986

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