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Sr. Principal E3 Electrical Engineer - 11108847

Location: Bedford, Massachusetts

Connexion’s mission is to provide "best in class" services to job seekers. We strive to achieve excellence in job placement, staffing, and recruiting services, while treating candidates with the professionalism and respect they deserve.

Title: Senior Principal E3 Electrical Engineer

Hiring Organization: Connexion Systems & Engineering

Our client is seeking: Senior Principal E3 Electrical Engineer

Compensation, Benefits, and Employment Type

  • Duration – Contract – 5-6 months+
  • Pay rate:   100-105/hr.
  • Job Location:  Bedford, MA 01730
  • Job# bh11764
  • Date Posted: 10/8/2020

Duties: We are seeking a talented, motivated and highly experienced Principal Electrical Engineer to join our Electrical Engineering Department as our E3 (Electromagnetic Environment Effects) and radio pre-compliance expert.

What You Will Do:

In this role you will be guiding the product design team during all phases of development on best practices to mitigate E3.

You will provide critical feedback during both schematic design and PCB layout design and participate in design reviews for each. At the hardware level you will work side by side with the designers in our pre-compliance RF Lab to ensure our products can pass various compliance regulations.

You will work with our RF/Antenna designers to measure and optimize antenna performance. In short, you will be the E3 lead taking ownership of more than providing RF chamber results by actively engaging with our development programs to design in effective E3 countermeasures up front.

You must have extensive knowledge and experience in electrical circuit design with emphasis on parasitic behaviors. In addition, the candidate must be very familiar with common compliance test standards and test methods. This position requires superior communication and interpersonal skills.


Manage, configure and maintain in-house RF chambers and equipment Setup and measure EMI/EMC/ESD/Radio performance Work with the design team to diagnose any issues encountered down to the root cause, providing technical analysis where required Recommend and test proposed solutions with the design team for incorporation into next revision Provide input on E3 best-practices at product schematic and layout design reviews


Strong knowledge and experience in a wide range of circuit design: (1- AC/DC, 2- DC/DC, LDO regulators - Digital circuits, microprocessors, high-speed busses Analog circuits - 3- Motor control circuits - 4- Antenna theory) Thorough understanding of RF Lab test equipment operations and limitations Strong understanding of circuit parasitics and how they affect circuit behavior Strong aptitude in understanding, evaluating and debugging E3 related issues Ability to modify test setups and methods to accommodate incomplete systems, or prototypes requiring external cabling not normally part of the system Interpret test results based on non-standard test conditions Identify root causes of any issues encountered Provide technical analysis as necessary Excellent verbal and written communication skills Strong people-skills

10+ years of relevant experience


Experience with robotic systems

Experience with circuit simulation tools (SPICE, Hyperlynx, etc.) Experience with magnetics simulation tools (Maxwell 3D) Intermediate Altium Designer skills MS Office product expertise Familiarity with Microsoft SharePoint and OneNote tools Familiarity with common industrial/commercial EMI/EMC test standards and test methods

Skills: Standards for EMC Tests:

FCC Part 15, Subpart B: Unintentional Radiators

EN55014-1: Emissions, Household Appliances (Radiated, Conducted, Dist. Power)

EN61000-3-2: Harmonic Emissions

EN61000-3-3: Voltage Fluctuations/Flicker Emissions

EN55014-2: Immunity, Household Appliances… IEC 61000-4-X: Series of Immunity Tests (ESD, Radiated, Conducted, V dips & drops) CISPR 11: Emissions (Radiated, Conducted)

ICES-003: Emissions, Unintentional (Radiated, Conducted) EN 62233: Electromagnetic fields of Household Appliances for Human Exposure

Standards or Radio Products:

FCC Part 15, Subpart C: Intentional Radiators FCC Part 15, Subpart E: Intentional Radiators (5GHz band) FCC Part 18, Subpart C: Wireless Power RSS 102: SAR, Human Exposure RSS 210: License Exempt Equipment RSS 216: WPT devices RSS 247: License Exempt Equipment, 5GHz, Category 1 ETSI EN 300 328 v2.1.1: 2.4GHz Wi-Fi, Bluetooth, Zigbee ETSI EN 300 330 v2.2.1: WPT ETSI EN 300 440 v2.1.1: BLE ETSI EN 301 489-X: RED EMC Tests for Radio Equipment ETSI EN 301 893 v2.1.1: 5GHz Equipment

ETSI 303 417 (DRAFT): WPT

EN 62311: SAR, Human Exposure

EN 62479: Human Exposure



BSEE, MSEE preferred

Skills and Experience:

Required Skills:




Additional Skills:


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