Sean Rhategan

**** ******** **** **

Lakewood Ranch, FL, 34202 United States

941-***-****

adpzce@r.postjobfree.com

PROFESSIONAL EXPERIENCE

Insight Global St Petersburg, FL United States

Medical products Engineer

Jan 2020 – March 2020

Medical power supplies use of Microchip processor products in power supplies written in C.

Experience using CAN Buses extensively Used I2C communications and SPI to communicate with other Devices in the system. System ran on a self-designed RTOS scheduling type platform.

Position was cut due to Covid-19. Worked in the Agile Environment and conducted Scrum Meetings as the Scrum Master

COBHAM Davenport, IA United States

Senior Lead R&D Engineer Jan 2016 – April 2019

Lead designer for hardware and software requirements for the next generation of OBOGS system with BEOS and BRAG interfaces.

Compiled ICDs for our military customers, US & NATO. Designs included support for ARINC 429 / 825 and MIL 1553.

Provided systems breakdown into software and hardware in Doors. DO-178B and DO-254

Worked extensively on the pressure sensor qualification and design requirements from Doors.

Worked on Oxygen sensor qualification at the Systems level. Qualification and safety analysis.

Software and Hardware design using the Microsemi Smartfusion as our core technology.

Day to day management of the Systems, Electrical and Hardware Team.

Provided with an on-site and off-site working environment. Travelled to support our clients outside the US.

Compiled documentation supporting and mapping DO-178B Level B and MIL-HDBK-516 at the System’s level.

Leading the current DO-178B and DO-254 certification efforts for 3 programs at the Systems/HW/SW level.

Worked 50% on site 50% offsite

L3 DISPLAY SYSTEMS Atlanta, GA United States

Senior R&D Engineer (systems) Jan 2015 – Dec 2015

Worked on code and certification for the CDU onboard the Boeing 777 that communicates with the Flight computer.

Worked on the Systems side for the requirements breakdown into hardware and software.

Use of Doors to capture, link and verify requirements

Compiled SRD and SDD

Conducted reviews and verification testing for DO-178 certification.

COBHAM Davenport, IA United States

Senior Software Engineer Jul 2011 – Dec 2014

I was involved in the design of a Power Supply for the CDS and ARINC 429 transmitter LRU on board the KC46 aircraft at the systems / HW / SW level.

Worked on the design portable and installed OBOGs units in private aviation. This design is based on a Smartfusion ARM Cortex M3, driving a compressor and air through a sieve bed. Measurements of pressure, O2 concentration and PPO2 are performed.

Visual C# applications for the IT department to allow drawing release and numbering.

Worked on the certification of code for two DO178B level B&C projects with requirements in Doors for DO-178 and DO-254

In this role I performed verification and implemented tables to show forward and backward tracing from specification requirements & test. Performed structural coverage and wrote test cases and analyzed dead code.

Worked on the life-support package in the Boeing F15SA. The control of oxygen used a TI 320F DSP and a Silicon Labs 8051F021.

I wrote and conducted software testing for HALT, QTP/ATP, salt/fog, and vibration as part of DO-160. I wrote the appropriate reports for our customer Boeing and did failure analysis on the failed units.

I have fully utilized I2C, SPI, SCI, ADC's, PWM peripherals on the DSP. Have an in depth understanding of Low Power Modes and the hardware and software required to meet power budgets.

Experience with full DO-178B process implementation (Planning phase, requirements generation phase, development phase, test/verification phase, and final certification wrap-up).

Using configuration management tools such as Tortoise SVN and problem reporting/tracking tools such as JIRA.

Experience performing requirements decomposition and traceability from system level and/or equipment level specifications to software, test, and design. Experience developing embedded ANSI C software to meet the certification requirements for DO-178B level C (Traceability Structural Coverage).

Experience using configuration management tools such as SVN and problem reporting/tracking tools such as JIRA.

Experience performing requirements decomposition and traceability from system level and/or equipment level specifications to software, test, and design.

Experience developing embedded ANSI C software to meet the certification requirements for DO-178B level B & C (Traceability Structural Coverage).

SPACE COAST COMMUNICATIONS / GENRAL DYNAMICS Melbourne, FL United States

Senior R& D Engineer Dec 2010 – Feb 2011

Subcontractor on the JTRS AMF program at General Dynamics C4 Systems in Sunrise, FL.

Developing on Green Hills Integrity embedded BSP for PowerPC.

Primary responsibilities included working on the GPP porting environment for the Rockwell Satcom waveform.

Project was lost funding in Feb of 2011.

CSEG LLC / L3 ALST / L3 CYTERRA. Clearwater, FL United States

Senior Software Engineer Oct 2007 – Oct 2010

Working on assignment for L3 ALST designing target designators, range finders and laser power supplies.

The scope of this work includes writing all design documentation, design and implementation of the laser and laser associated hardware, embedded firmware, communication software and control protocol.

Optimization of C code and implementation of Assembly to allow faster execution of algorithms.

Subcontractor on assignment for L3 Cyterra designing MS Visual Studio C# .Net automated test programs. This program interacts with various test equipment; network analyzers, power supplies, spectrum analyzers, etc. to do automated production and verification test on Ground Penetrating Radar.

This GUI application can be run manually or in fully automated mode to test individual components, or complete system verification of an embedded control system. Configuration and report files were generated in XML.

IS3 / DRS Clearwater, FL United States

Senior Engineer Oct 2005 – Sep 2007

Subcontractor on the Army JTT program. Windows embedded BSP integration and C++ driver code using the GE CR3 and CR4 single board computers (SBC).

Use of Jungo Tools for low-level PCI driver development. Designed Hardware PC Test interfaces.

Wrote the Master Security Plan that was approved by DSS that allowed IS3’s lab to be classified as a “Secret Lab”. Experience in the implementation of CMMI Level 3 Certification.

MJE / TANDEL / LOCKHEED MARTIN Clearwater, FL United States

Senior Engineer Oct 2002 – Oct 2005

Working on assignment for Tandel. Designed handheld controller for Gyro camera platform used on aerial vehicles.

Hardware and firmware designs using a PC104 board, Microchip and Hi-Tec C compiler.

Working on assignment for Secure Biometrics. Architect for the secure token project. Core design used Atmel ARM 9 and Microchip 18F processors.

Responsible for hardware development and low-level driver (C++) communication firmware, which included Active Magnetic Stripe, RF ID, and Secure Flash and Long-Range Radio module technology.

PRIZM TECHNOLOGY Sarasota, FL United States

Senior Engineer Jan 2002 – Sep 2002

Responsible for the design and cost reduction of a pre-payed kiosk product using GPRS Cellular technology for communication.

Designed interface cards and wrote firmware to interface touch screen, card reader, and bill acceptor peripherals on a small 8051 based system. Main development platform was with Assembly in a Windows development environment.

ELCOTEL Sarasota, FL United States

Senior Engineer Aug 1997 – Jan 2002

Architect for Elcotel’s card program. Responsible for the hardware and firmware design for the magnetic swipe/smartcard reader used in their products using Philips 8051 core.

Worked on the Legacy payphone products especially in the area of communications to the Payphone Management Systems over the modem. Specialized in the development and implementation of communications layers and protocols.

L3 MOBILE VISION Boonton, NJ United States

Engineer Jul 1995 – Aug 1997

Firmware design for in-car police video systems. Include tape deck control and monitoring, on-screen display and radar gun interfaces. Unit designed around a Dallas 8051 core.

Main development platform was with Assembly in a Windows/8051 development environment.

HOTTECH SYSTEMS Cape Town, Western Cape South Africa

Consultant Jul 1990 – Jul 1995

Worked on series of products for the local market that included satellite dish positioning systems for geostationary satellites, smart battery re-chargers, Alarm communicators,

Alarm system Panel design and electric pulse stimulation devices used for cosmetology. All Code in C on 8051 derivatives and Assembly Language with Orcad for PCB design.

DEPT POSTS & TELECOMMUNICATIONS Cape Town, Western Cape South Africa

Student Engineer Jan 1984 – Jul 1990

Worked in the Research and Development Center. Responsible for the design of hardware and firmware for crosstalk testers, telephone line testers and simulators.

Remote access control for microwave repeater stations. Development using the 8085 and 8031 microcontrollers and all applications written in Assembly & C language.

EDUCATION

DEPT P&T COLLEGE Cape Town, Western Cape South Africa

1984 -1987 – N6

ADDITIONAL SKILLS

LANGUAGES

C/C#, Java, JavaScript, HTML, XML, BASIC, Visual Basic, VB Script, VHDL, Pascal, Assembler (Motorola 68k, Intel x86, 8051, PIC 16F874, ARM Cortex M3)

SOFTWARE LIFECYCLE

I am experienced in all aspects and stages of the Software Lifecycle including:

Development: Functional Specifications, Top Level Designs, Detailed Designs Models (Agile, Waterfall), Class Discovery and Definition, Prototyping, Coding, Debugging, System Integration, System Test, Project management and IMS planning with Microsoft Project

OPERATING SYSTEMS

Windows 95 through Windows 10, OSX 5-10, Server 2003, Embedded XP, MS-DOS (2.0 – 6.22) Nucleus, MPCOS, Java card, Integrity, Keil RxTiny, written proprietary schedulers.

DATABASE

MS SQL Server, MS Access MS Visual Basic through 6.0

COMPUTER HARDWARE ARCHITECTURE

Motorola 68k Series, PowerPC, x86 Series, ARM 9, Atmel MegaAVR, Microchip 16F/18F, 8051, 6502, Z80 Series, TI 320F28x, MSP430, Micro Blaze, Cortex M3.

HARDWARE

Bus design using the Motorola and Intel architecture. Dual Port Ram, Flash, EEPROM, Static and Dynamic Ram designs. Peripheral interfaces design with I2C, SPI, USB, Fire wire, Bluetooth, One Wire, RS422, RS485, RS232,

Microchip PIC 16F/18F, 8051 Family, MSP430, ATMEL AVR, RF designs on the ISM bands 900MHZ & 2.4GHz. PCB antenna design.

TESTING

Acceptance Test Plans, Requirements / Test Case Lists, Test Design Specifications, Test Case Specifications, Test Procedure Specifications, Module Test Plans, Debug Test Procedure Specifications, Integration Verification Tests, Test Log Report Generation, Test Summary Report Generation, Python Scripts

NETWORKS and COMMUNICATIONS

IP protocol suite, IPX/SPX, NetBEUI, ETHERNET, ARCNET, Novell, X.25, AX25, PCI, USB, IEEE 1394, CAN bus, ARINC 429, ARINC 825 and MIL 1553.

CERTIFICATIONS

Nucleus RTOS, NT Administrator, MPCOS, Gemplus Smartcard Protocol, Visual Cylinder Inspector, Amateur Extra License, PADI/SDI SCUBA Staff Instructor, CPR/AED/First Aid Instructor

UTILITIES, APPLICATIONS & TOOLS

PCLint, PVCS Configuration Builder, Tortoise SVN, Lint; Doors, Jungo Toolset, Visual Basic (3.0 – 6.0); Visio; MS-Access; MS-Word; Excel, Pcad, Orcad, Protel, Smartwork, Autocad, Keil, Hi-Tec, Code Warrior, Code Composer IAR, Photoshop.

DO-178B Levels B through D and DO-254 Level D

DO-260, DO-160, DO-181

SOI1 – SOI4 – all aspects of certification

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