Principal Electrical Engineer – ESA (Electrical Signature Analysis) & Signal Processing
data nexus aiSavannah (GA)
Principal Electrical Engineer – ESA (Electrical Signature Analysis) & Signal Processing
Posted 4 days ago
data nexus aiSavannah (GA)
SENIORITY
Senior
About the role
Title:
Principal Electrical Engineer – ESA (Electrical Signature Analysis) & Signal Processing (Pre-Sales)
Location: Remote
Duration: 6 Months and may extend
Job Description:
Principal Electrical Engineer – ESA (Electrical Signature Analysis) & Signal Processing (Pre-Sales)
Role Overview:
This is a technical support to sales role (no quota) focused on acting as the engineering authority in customer discussions. You will lead technical conversations, demonstrate ESA-based fault detection capabilities, and defend the physics and mathematics behind electrical signature analysis (ESA) in real time.
Key Responsibilities:
Lead technical discussions with customer engineering teams
Explain and defend ESA concepts:
- Sideband analysis, slip frequency, bearing fault frequencies
- Harmonics, VFD behavior, low-current signal detection
- Demonstrate SaaS platform (real-time monitoring, FFT, predictive maintenance)
- Contribute to proposals and SOWs (architecture, signal chain, validation)
- Support pilot deployments (CT setup, gateway configuration, data validation)
- Create technical content (white papers, application notes)
- Provide feedback to engineering on signal-processing performance
- Core Requirement
- Strong expertise in ESA physics and mathematics, including:
- Fault-related sidebands
- Rotor and bearing fault signatures
- Harmonic behavior and waveform analysis
Ability to clearly explain and derive these concepts in live discussions is essential.
What You Bring (Required)BSEE required; MSEE in power systems, signal processing, or controls strongly preferred
Demonstrated mathematical depth in ESA:Phasor relationships, three-phase power physics
Fault-specific sideband generation, harmonic signatures
Sigma-delta ADC and FFT signal chain
Ability to derive rotor bar fault sidebands (e.g., on a whiteboard)
Ability to lead real-time technical discussions in PdM / FireEWS / signal-processing domains with senior engineering stakeholders
Comfort with embedded hardware concepts:
ARM Cortex-M, SPI/I²C, schematic and BOM interpretation
Energy metering ASICs (e.g., ADE9078 or similar)
Industrial electrical experience:
Automation, manufacturing, energy, rail, semiconductors, or similar
Systems involving three-phase motors, MCC panels, protective relaying
Strong English communication and confidence presenting to multi-stakeholder customer teams
Preferred / Nice to Have
Experience with low-amperage current detection (relay coils, auxiliary contacts)
Exposure to PCB-level fault diagnostics (UPS, chargers, controllers, drives)
Predictive maintenance certifications:
CMRP, CMRTVibration Analyst (Category I–III)
Knowledge of hazardous area standards (ATEX / IECEx)
Experience with Python for data analysis or automation
Familiarity with PCB design tools (KiCad, Altium)
Application Requirement
Include a brief note explaining:
Your electrical engineering background
How you would explain the physics of bearing fault detection using ESA in a customer discussion
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.