SENIOR EMBEDDED FIRMWARE ENGINEER

About BULWORK:

Bulwork is the first IT/TELCO-focused Bulgarian Recruitment agency, with 25 years of excellence. We are a trusted leader in sourcing highly skilled ITProfessionals. Thanks to our team, we deliver top-tier services that meet our clients' and candidates' expectations.

About our CLIENT:

... a fast-growing German company that develops high-tech products through fully in-house engineering. It operates with an international team across several continents, combining European production with global expertise. The company has been repeatedly recognized for its digital commerce model and its innovative approach to hardware development.

Currently, we are supporting them to recruit and hire an experienced and motivated Senior Professional who will take the position of:

SENIOR EMBEDDED FIRMWARE ENGINEER

Some of your duties:

In this role, you will be the architect and owner of application-layer firmware that powers a next-generation hardware product. You will be the one who gives the machine its ''intelligence'' - interpreting real-time sensor data, executing workout logic, enabling seamless connectivity, and ensuring the product behaves flawlessly for every user. If you want to shape how a physical device thinks, reacts, and evolves, this role is the right choice for you!

Essential requirements for the role:

• Еxtensive experience in Embedded C development (7+ years in building production firmware in C as your primary professional focus!);
• End-to-end ownership of firmware architecture, including overall design rather than isolated components;
• Experience with BLE (Bluetooth Low Energy development) – practical experience with BLE stacks (Nordic, STM32WB, ESP IDF, NimBLE, etc.), including tuning connection parameters, structuring GATT services, and debugging with sniffers;
• Strong command of real-time operating systems (FreeRTOS or equivalent);
• Experience with STM32 and Cortex-M microcontrollers;
• Hardware debugging abilities (using oscilloscopes, logic analyzers, JTAG/SWD tools, and BLE sniffers to diagnose issues that only appear on real hardware);
• Experience in writing and maintaining Unit tests in C;
• Very good command of the English language (B2 level).

The company can attract you with:

• Competitive salary;
• 25 days of annual paid leave;
• HYBRID working model with the flexibility between office and remote work;
• Additional health insurance;
• Additional monetary bonuses;
• Modern workspace in Sofia, Bulgaria, designed to support focus, comfort, and creative work;
• Opportunity to work in a very senior engineering environment, take full architectural responsibility, and have real product impact;
• Continuous learning and a culture that genuinely supports professional growth.

It's a rare job opportunity to be part of something innovative and thrilling. Are you ready for this? If yes, don't hesitate to send us your CV in English or your LinkedIn profile!

All applications will be handled with strict confidentiality. Only short-listed candidates will be contacted.

The candidates do not pay any taxes to the agency - the services are FREE OF CHARGE.

Bulwork Company LTD - IT Recruitment Agency (license No 2107 from 01.09.2016 from MLSP).