Embedded Firmware Developer
📌Sofia, Bulgaria 🇧🇬
⏱︎ full-time
🧙♂️ mid-level
Embedded Firmware/Software Developer
Location: Sofia, Bulgaria
⚠️ Please note: Only candidates currently residing in Bulgaria and speaking Bulgarian will be considered. No relocation support is offered for this position.
Your new workplace:
Our client is a global technology company, with offices in Bulgaria and the USA, which focuses on creating and implementing innovative IoT solutions for the security industry.
Your new role:
The Embedded Firmware/Software Developer will design, evaluate and implement firmware for new products and test and modify existing ones. The Embedded Firmware/Software Developer shall be able to collaborate openly with members of all company departments.
Responsibilities:
• Perform end-to-end design, development and implementation of firmware;
• Improve the design and performance of the existing code;
• Code review and pair programming;
• Bug fixing and improve product performance;
• Perform analogue and digital data analysis with oscilloscope, spectrum analysers, etc.
• Work with a task-based approach in an agile environment (Scrum);
• Continuously discover, evaluate, and implement new technologies to maximize code efficiency.
Requirements:
• Bachelor/Master in Computer Science, Informatics or similar;
• Programming proficiency in C;
• Good understanding of micro-controllers and embedded systems;
• RT OS or similar operating system application development experience is an advantage;
• As advantages are considered experience with ST Microcontrollers and GSM modules, plus IoT development;
• Must be a self-starter, able to work productively without close supervision.
Our perfect match:
• Honest: Personal integrity is a must. Consistent and uncompromising adherence to strong moral and ethical principles and values;
• Team player: Working collaboratively with others to achieve organizational goals;
• Customer-focused: Striving for service excellence, regarding both internal and external duties;
• Proactive and internally driven: Dealing with situations proactively and persistently, being accountable, seizing opportunities to pre-emptively resolve issues;
• Results-oriented: Focusing efforts on achieving high quality results, consistent with the organization’s standards;
• Skilful communicator and listener: Listening and communicating openly, honestly and respectfully with different audiences, promoting dialogue and building consensus.
Senior Embedded Software Engineer
@ Embedd 
What we're looking for
At embedd.it, we power hardware-software integration in embedded devices. We turn fragmented semiconductor chip data into configurable digital twins, then deterministically generate code, tests, and documentation – making integration faster, cheaper, and resilient to supply chain shocks.
We’re looking for a true legend – someone with abstract thinking and deep expertise in low-level software development. You’ll build vendor-agnostic tooling for MCU and peripheral integration to solve hardware-software integration once and for all. We work at the intersection of embedded systems, code generation, compilers, and machine learning. It’s your chance to help redefine how low-level development is done.
Responsibilities
- Drive the architecture of the driver structures and system layout
- Define scalable patterns for cross-architectural integration across bare-metal, Zephyr, Linux, and other environments
- Deconstruct complex SoC device trees and translate hardware descriptions into structured internal models for automated reasoning
- Partner with the ML team to shape data and annotation models for AI-driven data-extraction tooling
Qualifications
- 5+ years of experience in embedded systems development, including bare-metal and RTOS-based systems
- Proficiency in C/C++
- Familiarity with firmware configuration, SoC bring-up, and system-level debugging
- Hands-on experience with code generation tools, or low-level compiler/decompiler/emulator technologies
- Strong background in embedded toolchains: compilers, linkers, debuggers, and build systems
- Python or scripting for automation and tooling is a plus
- Experience with functional-safety standards is a plus
Why embedd.it?
- Dynamic, venture-backed team of engineers challenging the status quo 🚀
- Work at the intersection of embedded systems, code generators, compilers, and ML 🤖
- Unusual challenges requiring out-of-the-box abstract thinking 🧠
- Competitive compensation: cash + equity 💰
- Remote work possible 🌍
About Us
embedd.it is a UK-based startup reinventing embedded development. Our platform transforms unstructured semiconductor data into structured digital twins, enabling automatic generation of drivers, tests, and documentation. We're building a single, traceable source of truth to make integration fast, vendor-agnostic, and future-proof.
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Employment
⏱︎ full-time
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Experience
🧙♂️ mid-level
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