Hire ARM Developers: Affordable, Dedicated Experts in 72 hours

ARM development focuses on creating software for processors based on ARM architectures (Cortex-M, -A, -R). A proficient ARM developer typically:

• Implements Bare-Metal & RTOS: Writes firmware for no-OS or FreeRTOS, Zephyr, or ThreadX environments.
• Cross-Compiles Toolchains: Uses GCC, LLVM or vendor compilers and debuggers to build and flash binaries.
• Optimizes for Power: Tunes sleep modes, clock gating, and DVFS to minimize consumption.
• Integrates Drivers: Writes and validates HAL layers for peripherals (SPI, I²C, UART, ADC).
• Debugs & Tests: Uses JTAG/SWD tools (OpenOCD, Segger J-Link) and unit frameworks (Unity, CMock).

• Ubiquitous Architecture: ARM cores dominate mobile, IoT, automotive, and embedded AI markets.
• Low Power Profiles: Enables battery-operated and energy-harvesting devices.
• Scalability: Ranges from tiny Cortex-M0+ MCUs to powerful Cortex-A multicore SoCs.
• Ecosystem & Tooling: Rich vendor SDKs, middleware, and community support.
• Security Features: TrustZone, secure boot, and hardware cryptography accelerate compliance.

• Toolchains: GNU Arm Embedded GCC, Arm Compiler, LLVM/Clang.
• Debuggers: GDB, Segger Ozone, ARM DS-5, OpenOCD.
• RTOS & Middleware: FreeRTOS, Zephyr, ThreadX, CMSIS-RTOS, ARM mbed OS.
• Peripherals & HAL: CMSIS, vendor SDKs (STCube, NXP MCUXpresso).
• Continuous Integration: Azure DevOps, Jenkins with Docker cross-compile images.
• Version Control: Git with submodules for BSP and middleware.
• Testing Frameworks: Unity, CMock, Ceedling for unit tests; hardware-in-loop rigs.
• Simulation: QEMU or vendor simulators for early validation.

• Low-Level Programming: Mastery of C and assembly for ARM Cortex cores.
• RTOS Experience: Creating tasks, ISRs, and synchronization primitives.
• Hardware Debugging: Using oscilloscopes, logic analyzers, and JTAG/SWD tools.
• Driver Development: Writing and validating peripheral and board support packages.
• Power Management: Applying sleep states, peripheral gating, and DVFS strategies.
• Security & Safety: Implementing TrustZone, secure boot, and functional safety (ISO 26262)
• Build Automation: Scripting cross-compile CI pipelines and versioned releases.
• Soft Skills: Clear documentation, collaboration with hardware teams, and agile mindset.

Job Title: ARM Firmware Engineer, Embedded ARM Developer, Cortex-M/-A Software Specialist

Role Summary: Develop and optimize firmware for ARM-based platforms, implement drivers and RTOS integrations, and collaborate with hardware designers to deliver reliable embedded solutions.

Required Skills: C, assembly, Cortex-M/-A architectures, RTOS, JTAG/SWD debugging, Git, and CI tooling.

Soft Skills: Excellent communication, problem-solving, and teamwork in cross-functional environments.

• Firmware Design: Architect and implement embedded software for ARM microcontrollers and SoCs.
• Driver & BSP Development: Write board support packages and peripheral drivers.
• RTOS Integration: Configure and optimize task scheduling, memory, and interrupts.
• Performance Tuning: Profile CPU, memory footprint, and power consumption.
• Testing & Validation: Develop unit tests, integration tests, and hardware-in-loop validation.

• Programming: 3+ years in C/C++ and ARM Cortex assembly.
• RTOS: Hands-on with FreeRTOS, Zephyr, or equivalent.
• Debug Tools: Proficiency with JTAG, SWD, oscilloscopes, and logic analyzers.
• Hardware Acumen: Reading schematics, understanding PCB layouts, and hardware interfaces.
• Version Control: Git workflows and CI integration.
• Soft Skills: Agile collaboration with hardware, QA, and product teams.

• Security: Experience with TrustZone, secure boot, and cryptography hardware.
• Safety Standards: Knowledge of ISO 26262 or IEC 61508 for automotive/industrial applications.
• No-Risk Trial: Willing to develop a small firmware module or driver.

Specify remote, hybrid, or on-site options; competitive salary; benefits such as hardware lab access, training budgets, and conference allowances.

Detail steps: resume and portfolio review, technical assessment on low-level programming, live debugging exercise, and culture-fit interview.

• Niche Expertise: Limited pool with deep ARM architecture knowledge.
• Debug Complexity: Validating proficiency with JTAG/SWD and hardware tools.
• Power vs. Performance: Assessing ability to balance constraints on real products.

• Explain how you implement and debug an ISR in Cortex-M microcontrollers.
• Describe configuring and tuning FreeRTOS for a battery-powered sensor node.
• How do you measure and optimize power consumption on an ARM Cortex-A system?
• Walk me through debugging a hard fault using a JTAG debugger.
• What strategies do you use to manage memory and avoid fragmentation in embedded systems?

• Provide Dev Kits: Share hardware evaluation boards and schematics.
• Pilot Task: Assign a peripheral driver or RTOS integration module.
• Document Standards: Share coding guidelines, BSP templates, and CI pipelines.
• Mentorship: Pair with a senior embedded architect for initial reviews.
• Regular Demos: Weekly firmware feature and performance metric presentations.

• Vetted Specialists: Access top ARM developers with proven embedded experience.
• Flexible Engagement: Hire freelance, contract, or full-time talent with a no-risk trial.
• Rapid Onboarding: Quickly integrate experts into your hardware and toolchain.
• Dedicated Support: Leverage project managers for seamless coordination.
• Global Network: Tap into diverse embedded engineers across time zones.

Securing the best ARM developers requires a structured hiring approach—defining clear embedded requirements, evaluating deep architecture and RTOS expertise, and providing thorough onboarding. By focusing on low-level optimization, peripheral integration, and power management, you can deliver robust, efficient ARM-based products. Partner with Flexiple to access elite ARM talent, flexible engagement models, and a streamlined recruitment process—ensuring your embedded initiatives succeed from day one.