Layer1 Software Engineer: Networking & Hardware Control

Arista Networks; Kraków; On-site; PLN 150,000 - 210,000; Full time

Job summary

Arista Networks in Kraków is hiring a Layer1 software engineer to build reliable software for the physical layer connectivity across product lines. You will write and optimize software that handles the interface from 1GBASE‑T to 400G optics, ensuring robust control across various hardware components.

You will design, implement and test features in C, C++, and Python, and collaborate closely with hardware teams while mentoring junior engineers.

Qualifications

• BS Computer Science/Electrical Engineering/Computer Engineering + 3 years experience
• Expert knowledge of C or C++ and Python.
• Knowledge of UNIX or Linux
• Knowledge of digital communication technologies like modulation and signal encoding schemes is a plus.
• Understanding of IP networking and/or distributed systems is a plus
• Experience working with low level hardware components is a plus
• Applied understanding of software engineering principles
• Strong problem solving and software troubleshooting skills
• Ability to design a solution and implement features independently.
• Ability to work in small teams.

Responsibilities

• Interface with customers, product management and hardware engineers to come up with innovative new Layer1 features.
• Architect, design and manage the development of these features.
• Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.
• Work with hardware and manufacturing teams to bring new Layer1 components like Phys and Transceivers to market.
• Collaborate with hardware engineers to design optimal software control interfaces for managing Layer1 components.
• Provide technical leadership across features, projects and tools.
• Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.
• Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
• Mentor new and junior engineers to bring them up to speed in Arista's software development environment.

Skills

C/C++

Python

UNIX/Linux

IP networking

Distributed systems

Hardware knowledge

Software engineering

Problem solving

Team collaboration

Education

BS in CS/EE/CE

Job description

Arista Networks in Kraków is hiring a Layer1 software engineer to build reliable software for the physical layer connectivity across product lines. You will write and optimize software that handles the interface from 1GBASE‑T to 400G optics, ensuring robust control across various hardware components.

You will design, implement and test features in C, C++, and Python, and collaborate closely with hardware teams while mentoring junior engineers.