Senior PCB Design Engineer

Who Youll Work With

Working closely with cross-functional teams including Hardware Design Signal Integrity (SI) Power Integrity (PI) Mechanical Engineering Thermal Engineering and Manufacturing our engineers innovate on system architectures and ultra-high-speed PCB designs to deliver state-of- the-art networking platforms.

What Youll Do

Our Hardware Design Engineering team is at the forefront of developing high-speed networking and Ethernet products used in enterprise campuses hyperscale datacenters and next-generation AI clusters. The team is responsible for end-to-end design and development of advanced hardware solutions that meet the demands of modern networking environments including optical interface platforms up to 800G and 1.6T.

Core Responsibilities

 High-Speed Layout & Routing

• Implement complex routing for advanced interfaces such as 112G/224G SerDes PCIe Gen 5/6 DDR4/5/6
• Design and route high-speed differential pairs with tight skew and impedance control
• Execute dense BGA fan-out for high-pin-count ASICs and FPGAs

Optical Transceiver PCB Layout (800G / 1.6T)

• Design and layout boards supporting high-bandwidth optical transceivers (QSFP-DD OSFP OSFP-XD or equivalent)
• Route 112G / 224G PAM4 electrical channels between switch ASICs and optical modules
• Define insertion loss budgets and coordinate with SI engineers to meet IEEE compliance requirements
• Optimize breakout routing beneath high-density optical cages
• Implement via stub mitigation strategies including backdrilling for ultra-high-speed signal paths
• Manage ground reference continuity EMI control and return path integrity near optical connectors
• Consider thermal dissipation (20W30W modules) in layout planning

Impedance Control & Signal Integrity

• Design advanced multi-layer stack-ups (2030 layers)
• Calculate impedance profiles and ensure low-reflection low-crosstalk performance
• Collaborate with SI teams on channel modeling and pre-/post-layout simulations

Power Integrity (PI) Optimization

• Design robust Power Distribution Networks (PDNs) for high-current ASICs
• Layout multi-phase DC/DC converters for high transient loads
• Strategically place decoupling capacitors to ensure wideband impedance stability

Thermal & Mechanical Coordination

• Integrate thermal vias heat sink attachments and high-conductivity materials
• Coordinate mechanical constraints such as enclosure airflow and structural limitations
• Ensure proper placement and structural integration of optical cages

Advanced Fabrication Deliverables

• Generate comprehensive manufacturing packages (Gerber ODB IPC-2581)
• Define backdrilling parameters and impedance specifications
• Ensure compliance with DFM DFA and DFT requirements
• Support boards through fabrication assembly and production ramp

Library & Feasibility Ownership

• Create and maintain high-density component footprints (e.g. large BGAs optical module connectors)
• Participate in new product feasibility studies
• Develop detailed routing guidelines and work packages for layout partners
• Review external placement and routing work to ensure quality and schedule adherence

Qualifications :

• Bachelors or Masters degree in Electrical Engineering Electronics or related field
• 10 years of relevant hardware engineering experience
• Proven experience designing networking hardware particularly involving 100G/200G PAM4 Ethernet switching
• Direct experience in high-speed optical transceiver PCB layout (800G and/or 1.6T preferred)
• Expertise with 112G / 224G PAM4 routing and channel optimization
• Advanced proficiency in Cadence Allegro and Sigrity
• Experience designing 20 layer boards with 50G signals
• Hands-on experience with sequential lamination HDI ultra-low-loss materials
• Experience in multi-phase DC/DC layout for high-current high transient loads
• Strong manufacturing knowledge including DFM DFA and DFT for 30 layer rigid and rigid-flex boards
• Demonstrated success taking products from concept through mass production

Additional Information :

Arista stands out as an engineering-centric company. Our leadership including founders and engineering managers are all engineers who understand sound software engineering principles and the importance of doing things right.
We hire globally into our diverse team. At Arista engineers have complete ownership of their projects. Our management structure is flat and streamlined and software engineering is led by those who understand it best. We prioritize the development and utilization of test automation tools.
Our engineers have access to every part of the company providing opportunities to work across various domains. Arista is headquartered in Santa Clara California with development offices in Australia Canada India Ireland and the US. We consider all our R&D centers equal in stature.
Join us to shape the future of networking and be part of a culture that values invention quality respect and fun.

Remote Work :

No

Employment Type :

Full-time