{"id":3891368,"url":"https://alion.io/job/arista-networks-thermal-mechanical-engineer","title":"Thermal Mechanical Engineer","company":{"id":2790,"name":"Arista Networks","domain":"arista.com","url":"https://alion.io/company/arista-networks","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":89,"ghost_share":0,"stale_share":0.989,"repost_share":0,"time_to_fill_p50_days":37,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Santa Clara, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":180000,"currency":"USD","period":"year","gross":null,"usd_annual":180000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ANSYS","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"GD&T","optional":true},{"name":"Thermal Desktop","optional":true}],"status":"live","first_seen_at":"2026-11-06T20:54:19Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-11T21:14:03Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":4},"description":"Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges.\nAt Arista we value the diversity of thought and perspectives that each employee brings to the table. We believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation.\nOur commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do.\n Who You’ll Work With\nThe Thermal Engineering team addresses thermal engineering design challenges of high-end switching products. Our team collaborates closely with the Electrical design, Software, Mechanical, and Program Leaders to ensure the fulfillment of overall system requirements. As part of our team, you will be responsible for tackling all thermal design-related issues across various projects.\nThe total estimated annual compensation range for this position, inclusive of base salary, bonus, and equity, is $220,000-$400,000. This range is a good faith estimate only. Bonus and equity are discretionary, subject to plan terms, and are not guaranteed components of total compensation. Actual total annual compensation may vary based on employee performance, company or equity performance, company policy, board approval, or similar factors. Please see additional base salary information below.\nWhat You’ll Do\nWork closely across cross functional teams to aid in product design, validation, and reliability of thermal solutions. Develop a validation plan to not only qualify the product but also work in design improvements to system and cooling solutions (coldplates, ducts, fans, heatsinks, and TIM). Take ownership of real products and make engineering decisions around specifications, system status, vendor deliverables, and program status to customers.\nResponsibilities:\nBe one of the key voices in the thermal-mechanical solutions from concept to mass production\nPerform lab tests (PQ, Thermal, Airflow, System stress testing, Environmental chamber testing, temperature mapping)\nCollect and analyze test data. Present to internal teams, vendors, and customers in a clear and concise manner.\nSimulate current systems to validate test data to models with either Macroflow, Ansys EDT, FloTherm, IcePack, etc\nIdentify thermal risk and blockers and recommend design changes\nGenerate technical documentation for vendors, contract manufacturers, and customers. Communicate to key stakeholders\nContinuous improvement of lab and team in either equipment, design strategy, product quality, turn around, as well as workflow\nLeverage and develop automated workflows, develop scripts using Python, Matlab, etc.\nWork with Hardware and Software Teams to bring up and validate systems\nBring up next generation switches from system to rack level.\nTravel to either vendor, contract manufacturer, and/or customer sites for bring up/debug of systems (typically local).\n Preferred experience:\nBS/MS in Mechanical engineering, Electrical Engineering, or Related Engineering Discipline with 2 years of experience preferred \n3D CAD and 2D Drawing experience (PTC Creo) \nHands on experience in lab with high power silicon, systems, and electronics (6kW+)\nThermal Interface Material (TIM) characterization and utilization \nColdplate or heatsink design and/or testing and qualification\nCDU experience - operation and fundamental principles behind the CDU\nInstrumentation of system, DOE experience, and strong root cause analysis\nScripting experience in Shell scripting, Python, Matlab, C, etc\nStrong understanding of heat transfer, thermodynamics, and fluid mechanics\nUnderstanding of telemetry, data acquisition, and thermal characterization tools\nKnowledge of GD&T and manufacturing practices. Brazing, skiving, additive manufacturing, welding, and heat treatment.\nMust be able to frequently lift 50lbs+\nSimulation experiences (Fluent, Thermal Desktop, IcePack, FloTherm, etc)\nLiquid cooled experience in loop bring up, thread standards, corrosion practices\nFan testing, Fan PQ, and Fan Blade/Module design understanding\nPID experience with pumps and fan speed controllers\nFamiliar with Open Compute Project (OCP) and standards surrounding datacenter space.\nStrong sense of ownership and team-centric attitude\nNice to have:\nOther hands on experience in Automotive, HVAC, Plumbing, Electrical\nManufacturing experience in coldplates\nMachine shop experience\nCompensation Information\nThe new hire base pay for this role has a salary range of $120,000 to $180,000. 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 Arista’s Sales Incentive Plan, which pays commissions calculated as a percentage of eligible sales. US-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\nArista 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. 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