Embedded QA & Test Engineer

JOB SUMMARY: The position will have strong experience in embedded systems, IoT gateways, industrial field protocols, and secure firmware lifecycle validation. You will ensure the functional correctness, robustness, reliability, and security of our embedded C++ gateway platform, including Azure IoT Hub communication, hawkBit and SWUpdate firmware updates, and industrial protocols such as Modbus Serial, Modbus TCP, and CAN bus.

This role is highly hands-on. You will design test strategies, build automated test frameworks, operate hardware-in-the-loop test setups, and collaborate closely with firmware, cloud, hardware, and DevOps teams.

MINIMUM QUALIFICATIONS:

• Bachelor of Computer Science or Engineering or equivalent years of experience
• .3–7+ years of experience in embedded system testing, QA engineering, or IoT device validation
• .Strong understanding of C++ firmware behavior (reading & analyzing code, debugging tests)
• .Experience testing embedded Linux or RTOS-based gateways
• .Hands-on experience with
• :Azure IoT Hub (telemetry, C2D, twins, DPS
• )hawkBit and SWUpdat
• eModbus Serial (RTU) and Modbus TC
• PCAN bus testing and analysi
• sStrong Python scripting capability for automation and test tool development
• .Proficiency with lab equipment (CAN analyzers, Modbus simulators, USB-to-serial tools, oscilloscopes)
• .Solid networking knowledge (TCP/IP, TLS, certificates, provisioning flows)

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PREFERRED QUALIFICATIONS

• : Experience with IoT cloud platforms, fleet management, or gateway deployment
• s.Familiarity with secure boot, signed firmware images, and SBOM/security complianc
• e.Knowledge of Yocto, Buildroot, systemd, and Linux internal
• s.Experience with MQTT, AMQP, REST APIs, or proprietary field protocol
• s.Familiarity with J1939, CANOpen, or other industrial stack
• s.Experience building HIL / automated protocol simulation frameworks (pytest, Robot Framework, custom rigs
• ).Exposure to DevOps practices for firmware CI pipeline
• s.Knowledge of SQL server and general database management concep

ts
ESSENTIAL DUTI

ES:Embedded Gateway & IoT Connectivity Test

• ingTest embedded C++ firmware on Linux/RTOS-based IoT gatewa
• ys.Validate Azure IoT Hub communication workflows, includi
• ng:Telemetry messag
• ingCloud-to-device (C2D) comma
• ndsDevice Tw
• insDevice Provisioning Service (D
• PS)Certificate rotation and secure connectiv
• ityValidate message queueing, offline buffering, reconnect logic, and retry behavior under real-world network conditi

onsIndustrial Protocol Test

• ingDevelop and execute test cases f
• or:Modbus Serial (RTU): timing behavior, register maps, function codes, exception handli
• ng.Modbus TCP: multi-client scenarios, socket recovery, error handli
• ng.CAN bus: arbitration, extended/standard IDs, error frames, bus overload, and edge-case behavi
• or.Use protocol analyzers, CAN interfaces, Modbus simulators, and logic analyzers to capture and analyze traff

ic.Firmware Update & OTA Lifecycle Validat

• ionTest firmware and system updates usi
• ng:hawkBit (deployment orchestrati
• on)SWUpdate (A/B updates, failover, signing, rollba
• ck)Validate update workflows under stress, includi
• ng:Interrupted updates (power loss, network dr
• op)Corrupted image scenar
• iosUpdate rollback and fallback behav
• iorEnsure secure update chain-of-trust, signature verification, and partition layout integri

ty.Automation & CI/CD Integrat

• ionDevelop automated test suites using Python or C++ to validate firmware, protocols, OTA processes, and system servic
• es.Build hardware-in-the-loop (HIL) automated test setups for regression, protocol simulation, and device behavior testi
• ng.Integrate automated tests into CI/CD pipelines (GitHub Actions, GitLab, Azure DevOps, Jenkin
• s).Maintain automation tools for serial logging, bus capture, cloud message verification, and gateway diagnosti

cs.Debugging & Quality Report

• ingInvestigate firmware and system issues via logs, traces, core dumps, serial output, and protocol captur
• es.Reproduce field issues in controlled environments and collaborate with engineering teams to diagnose root caus
• es.Generate test reports, defect metrics, and release readiness assessmen
• ts.Contribute to continuous improvement of testing tools, processes, and standar
• ds.AI use in a QA role or a SDLC environm

ent
KNOWLEDGE, SKILLS AND ABILIT

• IES:Technical Curiosity: Comfortable working deeply with hardware, firmware, and cloud syst
• ems.Analytical Mindset: Able to isolate complex system interactions and identify root cau
• ses.Attention to Detail: Thorough and methodical approach to system-level test
• ing.Automation First: Passion for replacing manual steps with reliable automated tool
• ing.Collaboration: Works well with firmware engineers, cloud developers, hardware teams, and product own