Embedded Firmware Engineer - Security Domain (5-10 yrs)

Job Title : Embedded Firmware Engineer Security Domain

Location : Bangalore

Work Mode : Work From Office (WFO)

Experience Required : 515+ Years

Interview Process : 2 Rounds (Face-to-Face)

About the Role :

We are seeking a highly skilled and motivated Embedded Firmware Engineer with a strong background in security domains to join our fast-paced and growing engineering team. This role is ideal for someone who is passionate about embedded systems, microcontroller-level security, and developing robust, secure firmware solutions for next-generation IoT and embedded platforms.

As an integral member of our R&D team, you will be responsible for the design, development, and validation of secure embedded firmware with a strong emphasis on secure boot, ARM TrustZone, cryptography, and real-time performance.

Key Responsibilities :

- Architect and develop secure embedded firmware for microcontrollers (primarily ARM Cortex-M) used in IoT, edge devices, or low-power applications.

- Implement security protocols such as secure boot, chain of trust, cryptographic authentication, and encryption algorithms.

- Work with RTOS environments (e.g., FreeRTOS) to develop deterministic and secure firmware features.

- Integrate open-source security libraries and frameworks such as mbedTLS, MCUboot, TF-M (Trusted Firmware for Cortex-M).

- Collaborate with hardware teams to define and validate secure system architectures including ARM TrustZone.

- Write efficient and portable C code for performance-critical embedded applications.

- Debug and optimize complex, multicore firmware applications using industry-standard tools and techniques.

- Configure and customize linker scripts across toolchains like GCC, IAR, ARM Compiler for different target platforms.

- Contribute to low-power design and optimization strategies for energy-constrained applications.

- Participate in code reviews, system integration, testing, and technical documentation to ensure code quality and system reliability.

- Maintain awareness of evolving industry standards and vulnerabilities in embedded security.

Required Qualifications & Skills :

- 5+ years of hands-on experience in embedded firmware development with strong emphasis on security mechanisms and architectures.

- In-depth knowledge of ARM Cortex-M architectures, secure memory partitions, and exception handling.

- Expertise in C programming, embedded debugging, and understanding of memory management and resource constraints.

- Experience with real-time operating systems like FreeRTOS or similar.

- Solid understanding of cryptographic concepts such as symmetric/asymmetric encryption, hashing, digital signatures.

- Practical experience with secure boot chains, ARM TrustZone, and hardware-backed key storage.

- Familiarity with open-source security libraries : mbedTLS, MCUboot, Trusted Firmware-M (TF-M).

- Ability to create and manage linker scripts and startup files for multiple toolchains.

- Prior experience in designing low-power and secure embedded systems is a strong advantage.

- Excellent problem-solving and debugging skills, particularly in a multicore environment.

- Strong technical documentation and communication skills to collaborate effectively within a multidisciplinary team.

Nice to Have :

- Experience with secure element integration (e.g., TPM, SE050, ATECC).

- Knowledge of OTA (Over-The-Air) updates in a secure embedded environment.

- Experience in automated test frameworks for embedded firmware.

- Familiarity with CI/CD pipelines and version control systems (e.g., Git).