Senior Embedded Firmware Engineer — Remote, Flexible Hours

intent; Polska; Remote; PLN 186,000 - 248,000; Full time

Benefits offered by this job

Fully remote

Pet-friendly Warsaw office

Gdansk coworking space

Training budget

Job summary

intent is seeking a firmware engineer with 4+ years of experience, skilled in C/C++ for embedded systems, and hands-on ESP32/STM32 work. This freelance, time & material role starts with a three-month assessment period and leads to a permanent contract with full benefits for the right fit.

Fully remote, with a pet-friendly Warsaw office and a Gdansk coworking option. Flexible hours and collaboration with US-based clients are part of the rhythm.

Qualifications

• 4+ years of professional firmware development.
• Strong C/C++ for embedded systems experience.
• Hands-on ESP32 with ESP-IDF and ESP-ADF.
• STM32 experience in production projects.
• Solid Bluetooth knowledge across BLE stacks.
• Familiarity with IoT protocols like MQTT and WebSockets.
• English at B2+ written and spoken.
• Self-reliance, ownership, and clear communication.

Responsibilities

• Plan, develop, and ship firmware for connected devices.
• Gather and analyze client requirements and implement on silicon.
• Consult clients and internal teams on stacks and trade-offs.
• Work with mobile, backend, and QA to ensure BLE interoperability.
• Test firmware releases and write documentation.
• Estimate work and flag risks early.
• Promote better practices: code reviews and knowledge sharing.
• Use AI tools as part of daily workflow.

Skills

C/C++

Embedded systems

ESP32

STM32

BLE

Bluetooth Mesh

CMake

GCC

Python

MQTT

WebSockets

IoT knowledge

English B2+

Ownership

Tools

ESP-IDF

ESP-ADF

CMake

GCC

Python

Job description

intent is seeking a firmware engineer with 4+ years of experience, skilled in C/C++ for embedded systems, and hands-on ESP32/STM32 work. This freelance, time & material role starts with a three-month assessment period and leads to a permanent contract with full benefits for the right fit.

Fully remote, with a pet-friendly Warsaw office and a Gdansk coworking option. Flexible hours and collaboration with US-based clients are part of the rhythm.