Regular/Senior Embedded Software Engineer (f/m)

Join InTechHouse and work on engineering and software solutions for international customers across regulated and mission-critical industries.

We are developing firmware for a battery-powered, portable ECG device with LTE, BLE and USB connectivity.

What you’ll do:

• Integrate and stabilize firmware on an RTOS-based system,

• Implement BLE communication and data sync between two devices,

• Implement USB device communication (High-Speed, MTP) with a mobile app,

• Implement firmware updates over USB,

• Support peripherals such as LEDs and a vibration motor,

• Prepare the device firmware for lab testing,

• Depending on your experience: contribute to system architecture, cybersecurity and secure boot.

Tech stack:

• NXP MCX N947 running Eclipse ThreadX RTOS,

• LTE Cat 1 bis module Telit LE310Q1, connected over USB,

• BLE module NORA-B266 with an AT interface over UART.

What we’re looking for:

• 4+ years of commercial experience in embedded C,

• Hands-on experience with an RTOS,

• Practical experience with BLE,

• Experience implementing USB device functionality,

• Experience with firmware update mechanisms

• English at B2 level or higher.

Nice to have

• Embedded system architecture design,

• Cybersecurity and secure boot implementation,

• Experience with NXP MCX N series and Eclipse ThreadX,

• Experience preparing firmware for lab tests,

• Working with AI coding agents (e.g., GitHub Copilot, Claude Code).

What we offer:

• B2B contract: 80-120 PLN/h net + VAT, depending on experience,

• Cooperation with a stable, growing technology company listed on the stock exchange,

• Professional growth supported by experienced senior engineers and leads,

• Benefits package.

We are also hiring for a second project built on Silicon Labs EFR32 (bare-metal C, I2C/SPI, Wi-Fi and Sub-GHz RF), where experience with DSP, computer vision or TensorFlow Lite is a plus.