Firmware Engineer (IoT)

TL;DR

Firmware Engineer (IoT): Developing and implementing firmware for diverse IoT and connected devices with an accent on ESP32, Bluetooth/BLE communication, and embedded systems architecture. Focus on planning solutions, streamlining device-to-application interaction, and ensuring robust performance across complex hardware-software ecosystems.

Salary: 23,000–30,000 PLN net/month (B2B)

Company

A software house with over 10 years of experience specializing in the conceptualization, design, and development of connected devices and IoT products for global clients.

What you will do

• Gather and analyze technical requirements from clients to plan firmware solutions.
• Develop and implement robust firmware for embedded systems using C/C++.
• Work closely with mobile teams to troubleshoot and optimize communication protocols between devices and applications.
• Write and maintain detailed firmware documentation and perform release testing.
• Estimate project work and provide technical feedback during team meetings and daily calls.
• Establish and promote high-standard development practices within the engineering team.

Requirements

• 4+ years of professional experience in firmware development.
• Strong proficiency in C/C++ development for embedded systems.
• Practical experience with ESP32, ESP-IDF, and ESP-ADF libraries.
• Solid understanding of Bluetooth (BLE, Mesh) and IoT protocols like MQTT.
• English: B2 level proficiency required.
• Self-reliant, responsible, and effective at managing technical tasks independently.

Nice to have

• Experience with rapid hardware prototyping (Arduino, Raspberry PI).
• Knowledge of networking standards like Zigbee, Thread, or LoRa.
• Familiarity with cloud IoT platforms (AWS IoT, GCP, Azure) and cryptography.
• Experience with audio path processing or machine learning on embedded systems.
• Knowledge of Rust.

Culture & Benefits

• 100% remote work environment with flexible working hours.
• Opportunity for long-term collaboration with transition to internal benefits (paid holidays, sick leave, training budget).
• Active knowledge-sharing initiatives within the engineering team.
• Work on groundbreaking projects with global industry leaders.

Hiring process

• Screening call with HR (30 minutes).
• Technical interview (60 minutes).
• Final feedback provided within one week.