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

Compensation Information

The new hire base pay for this role has a salary range of $133000 to $180000. Arista offers different pay ranges based on work location so that we can offer consistent and competitive pay appropriate to the market. The actual base pay offered will be based on a wide range of factors including skills qualifications relevant experience and work location. The pay range provided reflects base pay only and in addition certain roles may also be eligible for discretionary Arista bonuses and equity. Employees in Sales roles are eligible to participate in Aristas Sales Incentive Plan which pays commissions calculated as a percentage of eligible -based employees are also entitled to benefits including medical dental vision wellbeing tax savings and income protection. The recruiting team can share more details during the hiring process specific to the role and location.

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Additional Information :

All your information will be kept confidential according to EEO guidelines.

Arista Networks is an equal opportunity employer.  Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race color religion sex sexual orientation gender identity national origin or any other factor determined to be unlawful under applicable federal state or law law.  All your information will be kept confidential according to EEO guidelines.

Remote Work :

No

Employment Type :

Full-time