Senior Technical Architect
India
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Job Description
Senior Technical Architect
Hyderabad, Telangana

Job Summary

Own real-time firmware for MCU-class cores and safety/real-time islands within ARM-based SoC platforms and standalone microcontrollers — RTOS bring-up, deterministic control loops, low-power operation and safety-oriented software practices.

Key Responsibilities

  • Develop and maintain firmware on FreeRTOS, Zephyr or bare-metal for Cortex-M class cores and real-time islands in heterogeneous SoCs.
  • Bring up MCU platforms — clock trees, low-level peripheral drivers, boot flow, memory maps and linker configuration.
  • Implement deterministic, hard real-time control paths with measured interrupt latency and jitter budgets.
  • Build inter-processor communication between the real-time domain and the application-processor domain (RPMsg/virtio, mailboxes, shared memory).
  • Implement aggressive low-power design — sleep states, wake sources, duty cycling and power-state machines for micro-power operation.
  • Support hypervisor-partitioned real-time guests and mixed-criticality configurations where applicable.
  • Apply safety-oriented development practices — coding standards, traceability, defensive design and diagnostics for SIL-oriented products.
  • Debug with JTAG/SWD, trace, logic analysers and hardware-in-the-loop rigs; drive firmware release and configuration management.

Skill Requirements

  • 8–10 years in embedded firmware development, majority on RTOS or bare-metal systems.
  • Expert C on ARM Cortex-M (and ideally Cortex-R/A real-time cores); assembly-level debugging comfort.
  • Production experience with FreeRTOS and/or Zephyr — scheduling, synchronization primitives, memory constraints, device model.
  • Peripheral-level driver work: SPI, I2C, UART, ADC, PWM, timers, DMA, GPIO.
  • Real-time analysis — interrupt latency, priority inversion, WCET awareness, jitter measurement.
  • Low-power firmware design and current-consumption measurement.
  • Hardware debug tooling: JTAG/SWD, oscilloscope, logic analyser, schematic reading.

Other Requirements

  • Functional safety exposure — IEC 61508 SIL, ISO 26262 ASIL, MISRA C, static analysis and safety documentation.
  • Inter-processor communication frameworks (OpenAMP, RPMsg) and remoteproc.
  • Hypervisor-based mixed-criticality partitioning (Xen or equivalent).
  • Wireless MCU firmware — Wi-Fi, BLE or 802.15.4/Thread/Matter on constrained devices.
  • Secure firmware update on constrained MCUs (MCUboot).
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.