Principal Engineer

Alten Calsoft Labs

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Ahmedabad, GJ, in on site Until 8/21/2026 First posted September 17, 2025 Last posted September 17, 2025
Job description

ALTEN Calsoft Labs is an Enterprise IT and product engineering service provider founded in 1992, Calsoft Labs was acquired by the French Based Multinational Engineering service provider ALTEN , in 2011 with offices in United States, Europe, Singapore and India . The company primarily focuses on Healthcare, Education, Retail and Networking & Telecom industries.

www.altencalsoftlabs.com

Hiring of Principal Engineer

 

Experience range: 6 to 8 years

 

Must:

Understanding of Ethernet Standards: IEEE 802.3 (10/100/1000BASE-T, 2.5G/5G/10GBASE-T, NBASE-T, Fiber Optics).

Ethernet PHY ICs: Internal blocks (PCS, PMA, PMD), Auto-negotiation, Link Training, FEC, Loopbacks.

Media Independent Interfaces (MIIs): MII, RMII, GMII, RGMII, SGMII, XAUI, QSGMII, KR/SR/LR.

Layer 2 Switching Concepts: MAC address learning, VLANs (802.1Q), Spanning Tree Protocols (STP, RSTP, MSTP), Link Aggregation (LAG/LACP), IGMP Snooping.

Debugging Skills: Hardware and software troubleshooting.

 

Good to Have:

Ethernet Switch Architectures & Features: QoS, traffic shaping, port mirroring, PTP/NTP.

Linux Kernel Development: Device drivers, network stack.

Scripting Languages: Python, Bash (for test automation and data analysis).

Network Test Equipment: Traffic generators, network sniffers (e.g., Wireshark).

MPU/MCU/OS: Microchip VSC, experience with IStax and WebStax, Redboot, uBoot.

 

All your information will be kept confidential according to EEO guidelines.

About this role

Summary

Designs and troubleshoots Ethernet hardware and software, including PHYs, interfaces, and switching.

Job title

Principal Engineer

Experience level

6 to 8 years

Industry

software

Location requirements

Ahmedabad, GJ, in; no remote work specified

Salary

Not specified

Management role

No

Skills & keywords

Required skills

ethernet standardsphy icmedia independent interfaceslayer 2 switchingdebugging

Preferred skills

ethernet switch architectureslinux kernel developmentscripting languagesnetwork test equipmentmpu/mcu/os

Specializations

ethernet standardsphy icmedia independent interfaceslayer 2 switchingdebugging
Locations

Structured locations inferred from the posting.

Ahmedabad, Gujarat, India

On-site City