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Bess Mechanical Engineer Jobs (NOW HIRING)

Novele

Mechanical Engineer

Manhattan, NY · On-site

Your Role Novele is seeking a hands‑on Mechanical Engineer to design and deliver the next generation of Battery Energy Storage Systems (BESS). This role requires strong engineering judgment ...

Genesis Technical Staffing, Inc.

Be Seen First

Mechanical Engineer

Birmingham, AL · On-site

Mechanical Engineer Location: Birmingham, AL Pay: DOE About this Role We are seeking an experienced ... BESS), substations, and transmission systems. This role focuses on delivering high-quality, safe ...

Quanta Services

Mechanical Engineer IV

Birmingham, AL · On-site

... BESS), substations, transmission systems, and gas treatment facilities. This role will lead the ... Lead mechanical equipment engineering activities for EPC power generation and industrial ...

Quanta Services

Senior Mechanical Engineer

Birmingham, AL · On-site

$89K - $118K/yr

This leadership role is responsible for overseeing mechanical engineering scope, ensuring technical ... Power generation systems (gas turbines, renewables, BESS) * Rotating equipment and auxiliary ...

Torus, Inc.

Mechanical Engineer

Salt Lake City, UT · On-site

$80K - $120K/yr

As a Mechanical Engineer on the Nova Pulse team, you'll design, validate, and bring to life the sub ... Design, document, and test sub-systems of Nova Pulse (Battery Energy Storage System (BESS) Chemical ...

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Bess Mechanical Engineer information

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$63.5K

$110.3K

$152K

How much do bess mechanical engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for bess mechanical engineer in the United States is $110,305.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,500.00 and $131,500.00 per year, depending on experience, location, and employer.

What is a BESS mechanical engineer?

A BESS Mechanical Engineer is a professional who designs, develops, and oversees the mechanical systems and components of Battery Energy Storage Systems (BESS). These engineers focus on ensuring the safe, efficient, and reliable operation of battery storage facilities, which are vital for integrating renewable energy into the power grid. Their responsibilities can include thermal management, enclosure design, structural analysis, and collaborating with electrical and project engineering teams. They play a key role in advancing sustainable energy by optimizing storage solutions for solar, wind, and other renewable resources.

What are the key skills and qualifications needed to thrive as a mechanical engineer, and why are they important?

To thrive as a Mechanical Engineer, you need a solid background in mechanical engineering principles, mathematics, and physics, typically supported by a bachelor's degree in mechanical engineering or a related field. Familiarity with CAD software (like SolidWorks or AutoCAD), FEA tools, and relevant industry certifications such as a Professional Engineer (PE) license are often required. Strong problem-solving abilities, teamwork, and effective communication skills set outstanding candidates apart. These competencies are crucial for designing reliable systems, collaborating with multidisciplinary teams, and ensuring project success in a competitive engineering environment.

What are some common challenges BESS mechanical engineers face when working on energy storage systems?

Bess Mechanical Engineers often encounter challenges such as ensuring the thermal management of battery systems, integrating mechanical designs with electrical components, and maintaining safety standards in high-energy environments. They must work closely with cross-functional teams, including electrical engineers and project managers, to optimize system performance while adhering to regulatory requirements. Staying up-to-date with evolving technologies and industry best practices is crucial for overcoming these obstacles and delivering reliable, efficient solutions.

What is the difference between Bess Mechanical Engineer vs Mechanical Design Engineer?

CriteriaBess Mechanical EngineerMechanical Design Engineer
Required CredentialsBachelor's in Mechanical Engineering, possibly PE licenseBachelor's in Mechanical Engineering or related field, often with CAD certifications
Work EnvironmentManufacturing plants, construction sites, R&D labsDesign offices, CAD labs, product development teams
Employer & Industry UsageManufacturing, energy, aerospaceProduct design, automotive, consumer electronics

Both roles require a mechanical engineering background, but Bess Mechanical Engineers focus more on manufacturing processes and systems, while Mechanical Design Engineers specialize in creating detailed product designs using CAD tools. The choice depends on whether you prefer working on system implementation or product development.

What are popular job titles related to Bess Mechanical Engineer jobs?

For Bess Mechanical Engineer jobs, the most frequently searched job titles are:

Infographic showing various Bess Mechanical Engineer job openings in the United States as of August 2026, with employment types broken down into 90% Full Time, 7% Part Time, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $110,305 per year, or $53 per hour.

Staff Mechanical Engineer - Thermals, BESS

Austin, TX • Hybrid

Enphase Energy
Clean Energy Semiconductors Manufacturing • 1 - 5K employees
Learn more about Enphase Energyexternal

$100K - $151K/yr

Full-time

Medical, Retirement

Re-posted 13 days ago

Enphase Energy rating

6.6

Company rating: 6.6 out of 10

Based on 15 frontline employees who took The Breakroom Quiz

134th of 162 rated electronics manufacturers

Job description

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.
Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future!

About the Role

As a Staff Mechanical Engineer - Thermals, you will drive thermal architecture, cooling strategy, and safety design for utility-scale Battery Energy Storage Systems (BESS), spanning outdoor cabinets and containerized platforms. You will design Chiller-based, liquid-cooled, air-cooled, and hybrid thermal systems that support multi-MWh energy storage installations operating in demanding outdoor environments.

This role requires hands-on expertise in thermal system design, advanced simulation, and BESS safety compliance. You will work closely with inverter, mechanical, electrical, controls, systems, safety, and manufacturing teams to ensure thermal solutions meet performance, reliability, manufacturability, serviceability, compliance, and cost targets - delivering production-ready designs from concept through deployment while optimizing CAPEX and long-term OPEX.

What You Will Do

  • Drive thermal architecture, cooling strategy, and safety design for cabinet-level and containerized BESS platforms, from concept through production and field deployment.
  • Design Chiller-based, liquid-cooled, air-cooled, and hybrid thermal systems for power electronics - including heat exchangers, chillers, cooling plates, pumps, valves, manifolds, fans, ducting, and venting devices.
  • Apply first-principles thermal engineering to design efficient, reliable, and cost-effective cooling solutions.
  • Perform system-level and detailed thermal and CFD analysis, and translate results into production-ready, compliant designs.
  • Lead arcing analysis, containment design with sensors, venting, pressure-relief mechanisms, and propagation-mitigation strategies.
  • Drive DFMEA, root-cause analysis, and corrective actions based on test data and field feedback.
  • Support supplier selection and technical design reviews, balancing performance, reliability, manufacturability, and cost (CAPEX/OPEX).
  • Support certification efforts and AHJ interactions across global safety and compliance standards.
  • Provide technical guidance and mentor junior engineers.

Who You Are and What you Bring

  • Bachelor's or Master's in Mechanical or Thermal Engineering with 8+ years of hands-on experience, including experience with utility-scale BESS thermal architectures.
  • Strong proficiency in thermal and CFD simulations - system-level and detailed analysis, including airflow and system-flow simulations and transient and steady-state thermal analysis using tools such as Icepak, Fluent, COMSOL, and FLACS.
  • Experience translating simulation results into production-ready, compliant designs, including analyses supporting NFPA 68 (deflagration venting) and NFPA 69 (explosion prevention).
  • Experience with arcing analysis, containment design with sensors, venting, pressure-relief mechanisms, and propagation-mitigation strategies.
  • Strong system-level understanding of PCS architectures, battery rooms, DC- vs. AC-coupled systems, and thermal coordination with BMS, EMS, and PCS derating logic.
  • Demonstrated capability designing for high-ambient (45-55 C), high-altitude, corrosive environments, and long-duration (2-8+ hour) energy storage systems.
  • Experience with reliability-driven thermal design, including 15-25-year system-life targets, redundancy, fail-safe and degraded-mode operation, and OPEX-optimized cooling strategies.
  • Experience driving DFMEA, root-cause analysis, and corrective actions based on test data and field feedback.
  • Experience supporting supplier selection and technical design reviews, balancing performance, reliability, manufacturability, and cost (CAPEX/OPEX).
  • Working knowledge of global safety and compliance standards, including UL 9540/9540A, NFPA 855/68/69, and IEC standards, with experience supporting certification and AHJ interactions.
  • Technical leadership skills, with the ability to lead projects, influence design decisions, and mentor junior engineers.

Work Location

This role requires being on-site at our Austin, Texas office 5 days per week.

The base pay range for this position is $100,000 to $151,000 per year. This salary range may be modified in the future. The successful candidate's starting pay will be determined based on job-related skills, experience, education or training, work location, and market conditions. This position is also eligible for bonus, RSU stocks in equity, premium health insurance and 401k matching benefits.

Employment Type: Full Time Employee (Experienced)

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