Embedded Software Developer – Ethernet PHY & Interface Drivers
Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Aug 28, 2026.
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Job Description:
Are you passionate about embedded software and eager to develop drivers that enable physical/electrical network interfaces? Do you thrive when creating software for automotive and other safety-critical industries, and enjoy working close to the hardware? Microchip Denmark is looking for a new colleague to join our local software team, focusing on OS-agnostic C-API products that interface directly with the physical Ethernet layers.
You will be part of a highly skilled team working closely with cross-functional groups designing chips, testing them, and supporting customers. Your work will directly impact the performance and reliability of Ethernet interfaces used in automotive and industrial applications.
Key Responsibilities
- Develop and maintain OS-agnostic C APIs for physical network interfaces.
- Bring up and tune a variety of interfaces, ranging from 10 Mbit MII to high-speed Ethernet SerDes interfaces (1G-25G).
- Understand and implement PCS and MAC layer functionality from a software driver perspective.
- Develop and maintain PHY drivers for various Ethernet standards including 1000BASE-T, 1000BASE-T1, 10BASE-T1S, etc.
- Contribute to the associated switch driver as well.
- Write MISRA-compliant C code in accordance with ASPICE and automotive safety standards.
- Contribute to the automated testing infrastructure and help maintain test platforms.
Requirements/Qualifications:
What you bring
Strong proficiency in C and embedded software development.
Experience with, or a strong interest in, physical Ethernet layers, PHYs, and interface standards.
A willingness to work close to hardware and investigate problems using datasheets, specifications, registers, test equipment, and debug tools.
Experience working in regulated environments with demanding safety, quality, and reliability requirements.
A structured and analytical approach to troubleshooting complex technical issues.
The ability to work independently while contributing effectively to a collaborative, cross-functional team.
Good written and spoken English communication skills.
A relevant technical education and five or more years of applicable experience.
Additional experience that would be an advantage
Experience with Ethernet switch SoCs, PHYs, or network interface drivers.
Knowledge of IEEE 802.1Q and fundamental Layer 2 forwarding concepts.
Familiarity with Ethernet bring-up, link training, auto-negotiation, PCS, MAC, SerDes, or MDIO management.
Experience with automotive or industrial Ethernet technologies.
Knowledge of Git, MISRA, ASPICE, ISO 26262, IEC 62443, or similar standards and processes.
Experience participating in standardization bodies, industry consortia, or technical working groups.
Experience with Linux user-space or kernel-space development.
Experience with Ruby, CMake, automated testing, or continuous integration.
Practical experience with AI-assisted development tools, with an understanding of responsible use, verification, code ownership, and security considerations.
What we offer
A key role in a team developing advanced Ethernet technologies for automotive and industrial applications.
The opportunity to work directly with hardware and influence products from early chip bring-up through production.
Access to experts in chip design, embedded software, networking, testing, and industry standards.
A technically challenging environment where learning and innovation are encouraged.
International collaboration and opportunities for travel.
Career development opportunities in both technical and managerial directions.
An informal, friendly, and collaborative office culture with meals and snacks provided.
Competitive compensation and benefits, including pension, healthcare, and stock options.
Join us
If you are motivated by challenging embedded-software problems, enjoy working close to the hardware, and want to help build the Ethernet technologies of tomorrow, we would love to hear from you.
Join Microchip Denmark and help connect the next generation of vehicles, machines, and industrial systems.
Travel Time:
0% - 25%To all recruitment agencies: Microchip Technology Inc. does not accept unsolicited agency resumes. Please do not forward resumes to our recruiting team or other Microchip employees. Microchip is not responsible for any fees related to unsolicited resumes.