Sr. Customer Application Support

NXP Semiconductors

2 Locations permanent

Posted: February 6, 2026

Job Description

Role Overview:

We are seeking a highly skilled Application Engineer with strong expertise in energy metering technologies, including developing metrology (single & three phase) , DLMS/COSEM protocol, and energy meter hardware architecture.

Education

Bachelor’s degree in electrical engineering, Electronics, Instrumentation, or related fields. Master’s degree is a plus.

Key Skill set:

Strong Understanding of Electrical Measurement Principles:

•
Fundamentals of AC power measurement (single‑phase & three‑phase)

•
RMS calculations for voltage, current, power & energy

•
Concepts of active, reactive, apparent power

•
Power factor measurement (displacement & distortion PF)

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CT/PT interfacing, burden selection, linearity, and phase‑angle correction

•
Anti‑tamper metering concepts (neutral disturbance, magnetic tamper, bypass detection)

Expertise in Metrology Algorithms

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Implementation of sampling, digital filtering, and signal conditioning

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Frequency tracking & phase‑locked loop (PLL) algorithms

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Compensation techniques for:

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Gain & offset errors

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Phase angle errors

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Temperature drift

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Energy calculation algorithms (block processing, time‑division sampling, etc.)

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Low‑signal detection, creep handling, and start‑up threshold logic

ADC & Sensor Interface Knowledge

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Experience with Σ‑Δ (Sigma‑Delta) ADCs, multi‑channel high‑resolution converters

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Understanding sampling rate, aliasing, ENOB, quantization noise

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Design and calibration of current sensors:

•
Shunts

•
CTs

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Rogowski coils

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Hall sensors

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Noise isolation, grounding, and analog front‑end design

DLMS/COSEM Knowledge (for Smart Meters)

While metrology is separate from DLMS, a metrology engineer should understand how measured parameters map to communication standards:

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OBIS code mapping for power & energy registers

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COSEM interface objects related to billing, load profiles, events

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Security suites (Suite 0 / Suite 1 / Suite 2)

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Interoperability testing with HES/MDM

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DLMS data structures for profile capture & metering blocks

Calibration & Accuracy Testing

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Hands‑on experience with meter test benches (ZERA, Radian, Secure, L&T)

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Multi‑point calibration techniques:

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Voltage, current, phase angle, power factor

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Accuracy standards:

•
IS 16444 (Smart Meters)

•
IS 15959 (DLMS)

•
IEC 62053‑21/22/23

•
Endurance, creep, tamper, harmonic, and influence quantity testing

More information about NXP in India...

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