Full-Time

Engineering Manager

Project Delivery

Rondo Energy

Rondo Energy

51-200 employees

Stores high-temp renewable heat for industry

No salary listed

Madrid, Spain

Hybrid

Hybrid in Madrid; occasional international on-site projects as required.

Bachelor's

Category
Engineering Management

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Requirements
  • Degree in an engineering discipline; Mechanical or Chemical/Process strongly preferred
  • 10+ years of total experience, including 7+ years of hands-on engineering on large industrial, energy, or process plants and 3+ years line-managing engineers
  • All-rounder technical fluency — you can read and challenge work across P&IDs, piping isometrics, equipment datasheets, SLDs, general arrangements and layouts, structural calculations, and I&C/control diagrams, even where it isn’t your primary discipline
  • You still enjoy the technical work itself: red-lining a drawing, writing a clean specification, pushing back on a vendor with data. Not just managing the people who do
  • Track record of building, growing, and retaining engineering teams
  • Experience delivering large-scale capital projects (>25 MUSD) in energy, power, oil & gas, chemicals, or heavy industrial
  • Strong leadership, communication, and negotiation skills. Comfortable being the most senior engineer in the room, and equally comfortable saying “I don’t know — let’s find out”
  • Comfortable surfacing problems early, including ones you own. You’d rather have an awkward conversation now than a worse one later
  • Bias to action — you start on what obviously needs doing without waiting to be asked, and bring people along rather than going around them
  • Curious quick learner with strong analytical and problem-solving skills; entrepreneurial and self-motivated
  • Flexibility to work across multiple time zones (Australia east coast through U.S. west coast) and travel internationally to project sites and HQ as required
  • Passion for safety and environmental stewardship
  • Fluent in English (written and spoken); Spanish or other languages a strong plus
  • Valid driver’s license
Responsibilities
  • Technical leadership across disciplines: Act as the senior technical reviewer for the Project Engineering team’s deliverables. You’ll be comfortable across mechanical, process, structural, electrical and I&C work — even where it isn’t your primary discipline — and you’ll set the bar for what’s good enough to leave the team.
  • Engineering process and quality: Define and own how technical work gets done in Delivery — review gates, drawing and specification checklists, technical bid evaluations, vendor data review, and lessons-learned loops. The bar is that the team’s output looks the same regardless of who produced it.
  • Project execution support: Partner with Project Managers as the senior engineering counterpart on live projects — unblocking technical decisions, escalating risks early, supporting client and authority reviews, and making sure engineering deliverables land on time, in scope, and at the right quality.
  • Vendor, EPC, and customer engineering: Lead engineering interactions with EPC partners, OEMs, and customer engineering teams. Review their submissions critically, hold them to spec, and stay engaged through to resolution when things aren’t right.
  • People leadership and team building: Lead a multi-discipline team of Project Engineers. Your job is as much to grow them as it is to deploy them — set clear expectations, give honest feedback, and recruit what the team is missing.
  • Cross-functional interface with HQ: Act as the Delivery team’s primary engineering interface with Product/Design at HQ — translating field learnings into product input and product changes into delivery-ready engineering.
  • Safety, compliance, and standards: Make sure projects meet applicable industry codes, regulatory requirements, and Rondo standards, and that safety is treated as foundational during the different project engineering phases.
  • Continuous improvement: Keep improving the team’s templates, checklists, review standards, and tooling, and feed lessons from each project back in.
Desired Qualifications
  • Background in industrial process plants — anything from Oil & Gas and petrochemicals to biomass, CSP, or combined-cycle power
  • Prior experience building or scaling an engineering team from a small base
  • Experience in a fast-paced start-up environment deploying novel technologies at large scale
  • Familiarity with international project codes (ASME, API, EN, IEC) across multiple jurisdictions

Rondo Energy provides thermal batteries that store heat from renewable energy to power high-temperature industrial processes. Its modular, scalable heat storage units are installed in existing facilities and charge from renewable electricity to deliver a continuous supply of high-temperature heat, enabling industries to replace fossil fuels. The company differentiates itself by offering integrated, scalable heat-storage solutions tailored for energy-intensive sectors such as steel, cement, chemicals, pharmaceuticals, and low-carbon fuels, aiming to fit various plant sizes and retrofit needs. Its goal is to decarbonize heavy industry by providing affordable, reliable zero-carbon heat and a stable energy supply that lowers emissions and costs over time.

Company Size

51-200

Company Stage

Growth Equity (Venture Capital)

Total Funding

$82M

Headquarters

Oakland, California

Founded

2020

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Simplify Jobs

Simplify's Take

What believers are saying

  • October 2025 California operation proved daily automated industrial use, not just pilot performance.
  • November 2025 HEINEKEN contract and January 2026 Covestro groundbreaking expand commercial backlog.
  • Samsung E&A and Aramco partnerships open Saudi carbon capture, hydrogen, and industrial heat projects.

What critics are saying

  • Rondo still depends on Breakthrough Energy Catalyst and EIB financing for flagship deployments.
  • Covestro’s Germany project targets end-2026 commissioning; any slip damages bankability and sales cycles.
  • Thermal batteries need massive manufacturing scale; SCG’s 90 GWh factory plan remains execution risk.

What makes Rondo Energy unique

  • Rondo’s 100 MWh heat battery achieved 97%+ efficiency and 1,000°C storage.
  • Rondo delivers heat-as-a-service, integrating with existing boilers without factory rebuilds.
  • Covestro, HEINEKEN, and Samsung E&A validate Rondo across chemicals, beverages, and carbon capture.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k) Company Match

Unlimited Paid Time Off

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

-4%

2 year growth

-1%
Securities.io
Mar 7th, 2025
Ultra-Durable Batteries: Why Next-Gen Tech Will Last Decades, Not Just Years

Batteries Made To LastAs the world electrifies and switches to renewable energy, the need for more energy storage grows. This is in part driven by the switch to EVs, but also due to the intermittent nature of renewable production.This can be partially compensated by other low-carbon sources of energy, like hydropower or nuclear, or maybe geothermal energy in the future. Still, advocates for green energy would by far prefer to see low-cost solar (and wind) be the basis of our energy systems.This creates a demand for batteries with fundamentally different characteristics than for mobility.EVs need very energy-dense batteries that are light enough in weight and small enough in volume to be carried in the frame of a car. Durability is a concern, but as long as the battery can function for 10-15 years, this is likely in line with the durability of the rest of the car's components.In contrast, energy storage batteries are much less constrained by weight or volume. However, they are definitely constrained by cost, as they are essentially an additional cost to the production of green energy and the power grid.One way to reduce the cost of energy storage is to use less expensive material than lithium for building the battery. Many alternatives are being considered, as we previously discussed in “ The Future Of Energy Storage – Utility-Scale Batteries Tech ”: batteries using technologies like sodium-ion, iron-air, zinc, sea salt, polymers, sodium-sulfur, or even molten metals.Another key element in reducing the lifetime cost of a battery system is to have it last several decades

Barchart
Feb 6th, 2025
Rondo Vs. Brenmiller- Which Presents A Better Investment Thesis?

So far, Rondo Energy has captured the spotlight, securing $187 million in funding from Breakthrough Energy and the European Investment Bank.

The Gulf Press
Jan 15th, 2025
Rondo and SAMSUNG E&A partner for Carbon Capture and Direct Air Capture projects in Saudi Arabia

IKTVA Forum & Exhibition 2025 (IKTVA 2025), Khobar Saudi Arabia - (ARAB NEWSWIRE) - Rondo Energy, the leading provider of zero-carbon industrial heat and power, today entered into a Memorandum of Understanding (MoU) with SAMSUNG E&A, a total solutions provider for the global energy industry.

CleanTechnica
Jul 10th, 2024
Rondo Energy Is Working On Ways To Decarbonize Process Heat

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google NewsRondo Energy is commercializing systems that reduce the carbon footprint of industrial systems that rely on process heat, which can be anything from the heat needed to cook food to converting iron into steel. According to the US Department of Energy, industrial process heat is the use of thermal energy to produce, treat, or alter manufactured goods. It is the most significant source of energy use and greenhouse gas emissions in the industrial sector, accounting for about 50% of all onsite energy use and 30% of greenhouse gas emissions. Process heating systems are emissions-intensive because fossil fuel combustion provides 95% of industrial heat across the manufacturing sector.Process heating systems raise or maintain the temperature of materials involved in the manufacturing process, such as the melting of scrap in electric arc furnaces to make steel, separating components of crude oil in petroleum refining, drying paint in automobile manufacturing, or processing food for safe consumption. Application temperatures range from 80°C to pasteurize milk and cream to over 1000°C to make cement.Companies like Rondo Energy use renewable energy when it is abundant and therefore inexpensive to heat rocks, bricks, or molten metals to red hot temperatures

CleanTechnica
Jun 28th, 2024
More Hotshots Pick Hot Bricks For Industrial Energy Storage

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google NewsMuch attention has been turned to zeroing out greenhouse gas emissions in the the electric vehicle field, but that’s minor league stuff compared to the challenge of decarbonizing the heat and electricity that power industrial processes. New energy storage technology has been emerging as a big-league solution, and the US startup Rondo Energy is among the innovators offering it up.Solving The Industrial Energy Storage RiddleTo be clear, new energy storage platforms won’t knock lithium-ion batteries out of the ring, but they will crack open new opportunities to clean up industrial processes that have resisted decarbonization through other means.As of this writing, an old technology — pumped hydropower energy storage — still dominates the non-battery storage field, by a wide margin. However, pumped storage is limited to particular circumstances of elevation and water resources. Some innovative pumped hydro solutions are beginning to emerge, helping to expand the range of applications. Still, the ideal solution would be a scalable system that industrial facilities can install on site.The California startup Rondo Energy is among the innovators focusing on solid state thermal energy systems