E

Exowatt

Modular full-stack renewable energy for businesses

Reliability Engineer

Full-Time
No salary listed
Senior
Bachelor's
Austin, TX, USA
In PersonRelocation to Austin is required; relocation assistance is available.
Mechanical EngineeringMechanical Maintenance and Reliability Engineering

About the job

Requirements
  • A bachelor's degree in Mechanical, Aerospace, Electrical, or a related engineering field.
  • At least 5 years of reliability engineering experience with electromechanical or thermal hardware.
  • Experience designing and executing accelerated life or stress tests, including ALT, HALT, and HASS, for electromechanical or thermal hardware.
  • Proficiency with reliability analysis methods, including FMEA, fault tree analysis, RBD, FRACAS, and RCM.
  • A strong statistical foundation, including Weibull analysis, life data analysis, DOE, and confidence-bound estimation.
  • Deep knowledge of root-cause methodologies, including 8D, 5-Why, and fishbone, and failure analysis techniques.
  • Ability to read and interpret mechanical drawings and system schematics.
  • Clear technical writing and ability to communicate findings to engineers, operations, and leadership.
  • Willingness to travel to test sites and customer deployments.
Responsibilities
  • Own reliability requirements, targets, and budgets for P3 system hardware, including thermal storage, heat exchangers, turbomachinery, power electronics, and balance-of-plant components.
  • Design and execute accelerated life testing (ALT), HALT, and HASS programs to validate component and system life under thermal cycling, vibration, and operational stress conditions representative of the P3 deployment environment.
  • Lead FMEA and reliability-centered maintenance (RCM) studies during design, NPI, and production ramp, and track and close action items with cross-functional teams.
  • Analyze field failure data, warranty returns, and in-service performance data to identify failure modes, estimate Weibull parameters, and prioritize design or process improvements.
  • Own the FRACAS process by capturing, analyzing, and closing out failures from test and field with design and manufacturing partners.
  • Collaborate with design engineering on reliability-by-design principles, including derating, thermal margin, fatigue life, creep, and materials selection for high-temperature, long-duration operation.
  • Build and maintain reliability models (RBD, fault trees, and MTBF/MTTF estimates) and support system-level availability analysis for customer site deployments.
  • Define and track reliability KPIs, including field MTBF, infant-mortality rates, and demonstrated versus predicted reliability, and report to engineering and operations leadership.
  • Partner with the Quality Engineering team to connect supplier and manufacturing quality data to field reliability outcomes.
Desired Qualifications
  • Experience in energy, aerospace, automotive, industrial equipment, or other high-reliability hardware industries.
  • Familiarity with failure mechanisms specific to high-temperature continuous-operation hardware, including thermal fatigue, creep, oxidation/corrosion, bearing and seal wear, and insulation degradation.
  • Exposure to thermal storage systems, heat exchangers, pressure vessels, rotating machinery, or power electronics relevant to the P3 system.
  • ASQ Certified Reliability Engineer (CRE).
  • Design for Reliability (DfR) training and Six Sigma Green or Black Belt.
  • Experience with reliability software such as ReliaSoft or Windchill Quality, and CMMS/field-service platforms such as Salesforce Field Service.
  • Experience building a reliability function from scratch at an early-stage hardware company.

About the company

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Exowatt

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Exowatt designs, installs, and maintains modular full-stack renewable energy systems for commercial and industrial clients. Its products are customizable energy solutions built from modular components that can be designed to meet specific energy needs and regulatory requirements, then installed on-site and supported through ongoing maintenance. The company’s approach combines consulting, system design, installation, and long-term service into a single, integrated package, enabling a seamless transition to renewables. This end-to-end service helps clients scale energy capacity as needed and manage energy performance over time. Exowatt differentiates itself by offering a true full-stack, modular package that covers from initial assessment to ongoing upkeep, fostering long-term relationships rather than one-off projects. Its goal is to help businesses lower both their carbon footprint and energy costs by moving to renewable energy with adaptable, scalable systems.

Company Size

51-200

Company Stage

Debt Financing

Total Funding

$90M

Headquarters

Miami, Florida

Founded

2023

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Simplify Jobs

Simplify's Take

What believers are saying

  • Exowatt raised $50 million in November 2025, reaching $140 million total funding.
  • The January 2026 ExoRise launch targets a 90+ GWh signed-demand backlog.
  • Austin's 11-acre campus expands manufacturing capacity for AI data-center deployments.

What critics are saying

  • Exowatt still lacks a commercially proven pilot before end-2026.
  • Mainspring, batteries, and other firm-power options already ship; Exowatt remains development-stage.
  • If P3 misses cost or reliability targets, its 90+ GWh backlog evaporates.

What makes Exowatt unique

  • ExoRise bundles land, power, and data-center shells into one 2026 product.
  • P3 stores solar as heat, then dispatches electricity day and night.
  • Austin manufacturing and Miami engineering enable domestically assembled, containerized energy systems.

Help us improve and share your feedback! Did you find this helpful?

Benefits

  • Health Insurance
  • Dental Insurance
  • 401(k) Retirement Plan
  • Company Equity
  • Relocation Assistance

Growth & Insights and Company News

6 month growth

-3%

1 year growth

-1%

2 year growth

1%
Tracxn
Oct 12th, 2026
Exowatt - Funding & investors.

Exowatt - Funding & investors. Last updated: October 12, 2026 Exowatt's funding rounds. Exowatt has raised a total of $105M over 5 funding rounds: 2 Seed, 2 Early-Stage and 1 Debt round s. Exowatt's largest funding round so far was a Series A round for $***** in Nov 2025. Here is the list of all funding rounds of Exowatt: | Date of Funding | Funding Amount | Round Name | Post-Money Valuation | Revenue Multiple | Lead Investors | Other Investors | | Nov 13, 2025 | 4124897 | Series A | 7293079 | 8509736 | 5286383 | 4539308 | | Apr 22, 2025 | 9493710 | Conventional Debt | 7526089 | 4144193 | 1188970 | HSBC Innovation Banking | | Apr 22, 2025 | 9923714 | Series A | 7200036 | 2165067 | 6386882 | Andreessen Horowitz & 10 more | | Apr 22, 2024 | 3396088 | Seed | 9138981 | 5028648 | 9172148 | Sam Altman & 2 more | | 2023 | 8567 | Seed | 1943 | 9793 | Climate Capital | 7568 | Exowatt's investors. Exowatt has total 25 investor s, 22 are institutional investors including Felicis Ventures and 21 others, 3 are Angel investors including Sam Altman and 2 others. Here is the list of institutional investors of Exowatt: * HSBC Innovation Banking, located in London (United Kingdom), made their first investment in Exowatt on Apr 22, 2025 in its Conventional Debt round. * Andreessen Horowitz, located in New York City (United States), made their first investment in Exowatt on Apr 22, 2025 in its Series A round. * Climate Capital, located in San Francisco (United States), made their first investment in Exowatt on 2023 in its Seed round. Are you a Founder? FAQs about Exowatt's funding and investors. Explore latest companies that raised funding recently * Tundr - raised a funding of $13.3M in Series A round held on Sep 22, 2026. * Beagle Labs - raised a funding of $4.1M in Seed round held on Sep 22, 2026. * Sela - raised a funding in Series A round held on Sep 22, 2026. * Sela - raised a funding in Seed round held on Sep 22, 2026. * Primrose Bio - raised a funding in Series B round held on Sep 22, 2026.

Exowatt
Mar 31st, 2026
Powering the AI era: Exowatt's new campus in Austin, Texas.

Powering the AI era: Exowatt's new campus in Austin, Texas. March 31, 2026 The digital and physical worlds are converging. As artificial intelligence (AI) demand accelerates globally, the need for resilient, scalable, and clean energy infrastructure is becoming critical, especially for data centers. Exowatt believes energy should accelerate progress, not limit it. The opening of its new 11-acre campus in Austin, Texas marked a major milestone in that mission, and Exowatt, Inc. were proud to host investors, Texas-based team members, and local partners for a formal opening to celebrate this next chapter. Why Austin, Texas? A strategic hub for AI and energy infrastructure. The Southwest has rapidly become the epicenter of AI infrastructure growth in the United States, with Texas leading the way. Austin, in particular, offers a powerful combination of technical talent, energy availability, and pro-growth policy, making it one of the most important regions for data center and energy innovation. "We are witnessing a historic collision between the digital demand for AI and the physical reality of our power grid. Our new Austin campus allows us to scale at the pace of our customers, delivering the foundational infrastructure that will define this decade of technological growth." - Hannan Happi, CEO and CoFounder, Exowatt Built for scale: A new hub for modular energy systems. This facility is more than an office - it's a fully integrated hub for designing, building, and deploying Exowatt's modular energy systems. The 48,000-square-foot campus combines office and warehouse space, enabling close collaboration across engineering, operations, and manufacturing. That proximity matters. Faster iteration cycles, tighter coordination, and streamlined production all contribute to one outcome: speed. And in today's AI-driven economy, speed is everything. Exowatt is also investing in a domestically built supply chain to support U.S.-based energy infrastructure. This approach helps meet rising demand from AI data centers while strengthening national energy resilience and security. Momentum for the future of AI energy infrastructure. The Austin expansion builds on strong momentum for Exowatt. Earlier this year, Exowatt, Inc. launched ExoRise, a platform focused on delivering turnkey powered land solutions across high-solar regions, including New Mexico, West Texas, Arizona, and Nevada. With a $50 million Series A extension closed late last year, Exowatt is well positioned to support the next generation of AI infrastructure, data center energy systems, and scalable compute.

Associated Press
Mar 18th, 2026
Exowatt opens Austin office to scale AI power solutions after $50M raise

Exowatt, a clean power company targeting AI-era energy needs, has opened an 11-acre Austin office, featuring 48,000 square feet of integrated office and warehouse space. The facility will serve as a hub for engineering, operations and manufacturing as the company scales production of modular energy systems. Founded in 2023, Exowatt recently closed a $50 million Series A extension and launched ExoRise, a business arm focused on turnkey powered land solutions in high-solar regions across the US Southwest. The Austin expansion positions the company in what has become the epicentre of US AI infrastructure buildout. Exowatt is backed by a16z, Atomic, Felicis, Overmatch Ventures and Sam Altman. The company aims to deliver dedicated renewable energy to meet growing AI and data centre demand.

Business Wire
Feb 5th, 2026
Exowatt hires four executives to scale dispatchable solar tech for AI data centres

Exowatt, a renewable energy startup, has appointed four executives to scale its dispatchable solar technology for AI data centres. The company's P3 system converts solar energy into heat for long-duration storage and on-demand power dispatch. Nic Bustamante joins as Chief Data Centre Officer to lead ExoRise, Exowatt's turnkey-powered land solution. Bill Flood becomes Head of Engineering, bringing 35 years of aerospace experience from Moog, Boeing and Lockheed. Kalyan Bhamidi joins as Head of Supply Chain & Manufacturing from Apple, where he led OLED technology and Vision Pro Display manufacturing. Pierson Stoecklein is appointed General Counsel & Head of Government Affairs, previously serving at Amazon Web Services. Founded in 2023, Exowatt is backed by a16z, Atomic, Felicis and Sam Altman.

Exowatt
Jan 23rd, 2026
Exowatt Launches ExoRise at PTC: Breaking the AI Energy Bottleneck

Exowatt launches ExoRise at PTC: breaking the AI energy bottleneck. Fresh off a week of high-level sessions and networking at the Pacific Telecommunications Conference (PTC) in Honolulu, the Exowatt team is back with more than just industry insights. Exowatt, Inc. is proud to announce the official launch of ExoRise, its solution to the infrastructure bottleneck currently stalling the AI revolution. ExoRise is its direct response to the aging U.S. power grid - a physical roadblock that threatens America's leadership in the AI revolution. As hyperscalers race to build capacity, they are hitting a wall of grid interconnection timelines that stretch years into the future. ExoRise is the fast-track around that wall. What is ExoRise? Led by industry veteran and Exowatt's new Chief Data Center Officer, Nic Bustamante, ExoRise delivers turnkey powered land and energy infrastructure purpose-built for AI. By pairing strategic land development in the U.S. Southwest with its proprietary P3 modular solar technology, Exowatt, Inc. bypass the traditional strains on urban grids. Exowatt, Inc. is not just selling a product; Exowatt, Inc. is providing a "plug-and-play" solution for hyperscale deployment. * Accelerated Speed to Power: By developing in high-solar regions (NM, TX, AZ, NV), Exowatt, Inc. bypass years of utility bureaucracy. * 24/7 Dispatchable Solar: Unlike intermittent renewables, its P3 technology stores energy as heat, converting it to electricity on demand to power data centers day and night. * Integrated Infrastructure: As CEO Hannan Happi notes, "Hyperscalers should not have to piece together land, power, and infrastructure on their own." Exowatt, Inc. provide the full stack so its customers can focus on compute. A virtual reality deep dive. To give the industry a true sense of scale, Exowatt hosted an immersive virtual reality (VR) event at PTC. Attendees joined Hannan Happi and Nic Bustamante for a walkthrough of an ExoRise site, experiencing the future of modular energy firsthand. Exowatt, Inc. also took the stage for a featured panel. Hannan and Nic were joined by Bill Mazzetti, SVP, Rosendin and Scott Charter, Director of AI Strategy, Oracle to discuss why ExoRise is essential for maintaining a competitive advantage in the global AI arena. Three key takeaways. Its team of Exonauts walked away with a clear signal: the conversation has shifted from "How do we build?" to "How do we power?" These three insights from the ground in Honolulu confirm that ExoRise is meeting the market exactly where it's headed. * Energy is the New Alpha: Every session related to power and energy was standing room only. Energy is no longer just a utility cost; it has become the hottest "commodity" in the global data center industry. This shift is drawing a new crowd to the table, including high-level financiers, researchers, and policymakers all looking for the same thing: power certainty. * From Real Estate to "Power-First": Historically, data centers have been framed as a real estate game - land, buildings, and leases. While those elements still matter, the industry "moat" has shifted to execution. The winners will be the companies with a proven playbook for delivering physical power systems, navigating complex permitting and interconnection, and mobilizing skilled labor and capital. * Scalability is the Only Filter: The market is full of interesting ideas, but the industry is now applying a strict filter: Can this scale fast enough to keep up with AI? Speed and repeatability are the new gold standards. The winners will be those who can prove scalable, real-world deployment without being sidelined by supply chain or grid constraints. [Building the energy foundation for the future]. ExoRise is already addressing a 90+ GWh backlog of signed customer demand. With its first pilot project slated to be operational by the end of 2026, Exowatt, Inc. is not just building power plants - Exowatt, Inc. is building the energy foundation for the future of intelligence.