Senior Firmware Developer
Fresh Consulting2 months ago
San José, Costa RicaSenior
Responsibilities
- Lead a team of 4–5 firmware developers working on a test instrument device.
- Drive technical delivery and quality across the firmware development team.
- Develop low-level firmware for ARM Cortex-M microcontrollers using C and C++.
- Design modular software abstractions and establish a platform abstraction layer for the HAL.
- Develop with FreeRTOS, including threading, synchronization, IPC, and other RTOS features.
- Implement interrupt-safe designs and use synchronization devices appropriately.
- Work with standard peripherals such as UART, ADC, and timers.
- Create automated tests and use static analysis.
- Support multiple build targets and toolchains using appropriate debuggers.
- Use Linux, Python, SCons, Git, GitHub, GitHub Actions, and Docker in the development workflow.
- Lead two-week sprint delivery and interact with clients regarding technical and delivery matters.
Requirements
- At least 10–20 years of firmware development experience.
- Experience serving as a technical lead for products using ARM Cortex-M processors.
- Experience leading teams through an Agile development process.
- Strong C/C++ programming skills and low-level microcontroller firmware experience.
- Knowledge of register manipulation, number representation, FPUs/DSP instructions, and lightweight digital signal processing.
- Experience creating modular software abstractions and platform abstraction layers for HALs.
- Experience with ARM-based microcontrollers and FreeRTOS.
- Ability to interpret schematics and technical reference manuals, including pinouts.
- Knowledge of interrupt-safe design, synchronization, threading, and IPC.
- Experience with standard peripherals, automated unit testing, static analysis, build systems, toolchains, and debuggers.
- Experience with Python, SCons, Git, GitHub, GitHub Actions, and Docker.
- Ability to use benchtop tools including logic analyzers, power supplies, multimeters, and oscilloscopes.
Benefits
- Medical plan, paid time off, sick leave, bereavement leave, English classes, and a supportive workplace culture.
- Hybrid work arrangement with at least one onsite day per week in San José, Montes de Oca, San Pedro.
- Minimum schedule of 40 hours per week.
About Fresh Consulting
Fresh Consulting is a strategy, design, software, and hardware engineering consultancy that builds digital products, robotics, and connected systems for businesses. It delivers end-to-end services—UX/UI, brand identity, web/mobile and embedded development, and systems engineering—via integrated project teams. The company is privately held and headquartered in Bellevue, Washington, supporting initiatives that link humans, software, and devices from early strategy through delivery.