Firmware Validation Engineer

Career Soft Solutions; Thiruvananthapuram; On-site; INR 650,000 - 950,000; Full time

Job summary

Career Soft Solutions in Trivandrum is seeking a skilled Embedded Validation Engineer to verify BLE, Wi‑Fi provisioning, MQTT integration, and Matter interoperability. You will validate OTA flows, firmware security, and power performance across TI, Nordic, STMicro, Renesas, and Silicon Labs platforms.

Strong scripting and driver-level C/C++ skills are essential. The role involves hands-on hardware lab work, JTAG/SWD debugging, and developing Python automation within CI pipelines.

Qualifications

• Proficient in Python and test automation scripting.
• C/C++ for driver-level work and harness development.
• Experience with FreeRTOS/TI RTOS task scheduling and interrupts.

Responsibilities

• Validate BLE (GATT, GAP, pairing/bonding) and Wi-Fi provisioning, roaming, and co-existence.
• Test MQTT delivery, QoS levels, and AWS IoT Core integration.
• Validate Matter commissioning and device interoperability.
• Verify SPI, I2C, UART driver behavior and edge cases.
• Validate OTA flows via MCUboot and TI OAD including rollback scenarios.
• Verify firmware signature checks and anti-rollback protections in the secure boot chain.
• Test secure boot chain, TrustZone key storage, and secure element access controls.
• Measure power consumption across sleep, idle, active, and radio-on states.
• Execute tests on TI, Nordic, STMicro, Renesas, and Silicon Labs targets using JTAG/SWD and logic analyzers.
• Develop Python automation scripts integrated into Jenkins and AWS CodePipelines.

Skills

Python

C/C++

Test automation

Tools

JTAG/SWD

logic analyzers

BLE sniffers

Wireshark

GCC/TI Clang

MCUboot/TI OAD

Job description

Mode: C2H/FTH.

Locations: WFO - Trivandrum

Shift: General

Responsibilities

Wireless & Protocol Validation

• Validate BLE (GATT, GAP, pairing/bonding) and Wi-Fi provisioning, roaming, and co-existence
• Test MQTT delivery, QoS levels, and AWS IoT Core integration
• Validate Matter commissioning and device interoperability
• Verify SPI, I2C, UART driver behaviour and edge cases

OTA & Bootloader

• Validate OTA flows via MCUboot and TI OAD including rollback and interrupted update scenarios
• Verify firmware signature checks and anti-rollback protections in the secure boot chain

Security Validation

• Test secure boot chain, TrustZone key storage, and secure element access controls
• Execute anti-tamper scenarios and assess alignment with UL 2900 and NIST IoT guidelines

Power & Performance

• Measure power consumption across sleep, idle, active, and radio-on states
• Validate battery life projections and RTOS task timing under load

Hardware Lab & Automation

• Execute tests on physical TI, Nordic, STM, Renesas, and Silicon Labs targets using JTAG/SWD and logic analysers
• Capture BLE sniffer and Wireshark traces for protocol validation
• Develop Python automation scripts integrated into Jenkins and AWS CodePipelines

Requirements

Languages & Frameworks

• Python strong experience in programming with Python and preferably in test automation scripts.
• C/C++ test harness and driver-level work
• Experience in firmware development using FreeRTOS, TI RTOS task scheduling and interrupt handling concepts

Wireless & Connectivity

• BLE — GATT, GAP, pairing, bonding, advertising
• Wi-Fi 802.11 — provisioning, roaming, co-existance testing
• MQTT, Matter — protocol-level validation experience
• SPI, I2C, UART — wired protocol debugging with logic analysers

Hardware & Debug Tools

• Hands-on experience with TI, Nordic Semiconductor, STMicro, Renesas, or Silicon Labs platforms
• JTAG/SWD debuggers, logic analysers, BLE sniffers, Wireshark
• MCUboot, TI OAD — OTA and bootloader validation
• GCC, TI Clang toolchains