At Kerionics, we work to drive real change in the world: accelerating decarbonization through technologies that make cleaner, more sustainable energy possible.

As a spin-off from ITQ (UPV-CSIC), we are born from scientific knowledge, but our goal is clear: to turn research into real industrial solutions.

Our SOEC technology brings us closer to that goal. Its high energy efficiency makes it possible to produce hydrogen where it is needed most: in industries that still rely heavily on fossil fuels. We want to show that an ambitious energy transition is not only possible, but already underway... and you can be part of it.

Who we're looking for

We are opening a new position for someone with a scientific background in Chemistry, Chemical Engineering or a related field , and a good hand with data , eager to join a fast-growing deep-tech company.

You will work within our Quality & Testing team, at the boundary between the lab and data : you will take part in the electrochemical tests that prove our SOEC technology (from single cell to stack and full system) and you will contribute to the data and automation layer we are currently building to digitalize the department.

This role is adecuado for someone who enjoys hands-on work, thrives in dynamic environments, and combines scientific judgment with a genuine appetite for programming and for bringing order to the chaos of experimental data. It is also a role to grow in: you will arrive with your chemistry foundation and your ease with data, you will learn our SOEC technology from the inside (something highly cutting-edge that is barely covered at university), and you will contribute to the department's future advanced-analytics and AI models.

Who we are

We are a multicultural team of more than 35 people united by one purpose: building a more sustainable future through technological innovation.

Scientists, engineers and business professionals passionate about turning scientific knowledge into real industrial impact.

What you'll do

You will be a key member of the Quality & Testing team: you will take part in the tests that validate our SOEC technology and contribute to the data and automation layer we are building, a real commitment at Kerionics that a colleague specializing in AI is already working on.

Testing execution and support

- Take part in running SOEC test protocols across different configurations (single cell, stack and full system), following the defined test matrices.
- Help ensure the test plan is carried out correctly, with full traceability of conditions, configurations and metadata.
- Run and interpret the usual electrochemical tests (current-voltage curves, impedance spectroscopy, stability and degradation), quickly gaining autonomy in our SOEC technology.
- Become familiar with operating the electrochemical test stations (gases, steam, temperature, pressure/flow, instrumentation and data acquisition).

Data analysis and automation

- Structure,



clean and standardize experimental data to ensure its quality, traceability and reusability.
- Develop or improve automation tools for data processing, analysis and visualization using Python, SQL or equivalent technologies.
- Help build a centralized database for the department's tests, and define its data models and metadata.
- Process raw test data (current-voltage, impedance, area-specific resistance, degradation, thermal and gas effects), producing clean analyses and contributing to the technical conclusions.
- Lay the groundwork for the department's future advanced-analytics and AI models.

How we work

Our work happens very close to the product itself: laboratory, workshop, prototypes, testing and validation. That's why we work on-site at Parque Tecnológico de Paterna.

We work with a high degree of ownership and autonomy. If you enjoy learning by doing, solving real engineering problems and contributing directly to a product that is being built from scratch, this is the place for you.

We start at 7:30, which leaves your afternoons free for sport, family, or whatever you enjoy most.

What we ask for

- You are fluent in Spanish and English.
- Living in Valencia, or willing to relocate within a reasonable timeframe (6-8 weeks).
- Valid work permit in Spain (we are not able to offer visa sponsorship for this position).
- Degree in Chemistry, Chemical Engineering or a related field, ideally complemented by training in Data Science / Big Data / AI.
- Demonstrable ability in Python, SQL and databases, even at the level of master's, academic or portfolio projects.
- Genuine interest in learning the electrochemistry domain and SOEC technology.
- Willingness to do hands‑on lab work.

Not essential, but you'll surprise us if you also bring:

- Direct experience with SOEC/SOFC testing, or with other hydrogen electrochemical systems (PEM, AEM, alkaline electrolysis, fuel cells, batteries).
- Advanced interpretation of impedance spectroscopy (EIS): equivalent circuits and frequency‑response analysis.
- Design of data automation workflows and experience with specific relational databases (PostgreSQL, MySQL, SQL Server...).
- Data visualization (Power BI, Grafana, Dash, Plotly or equivalents).
- Some knowledge of machine learning or predictive analytics applied to experimental data.

What we offer

- €25-30K , depending on experience and skills.
- Permanent contract.
- Working hours from 7:30 to around 16:00, leaving your afternoons free .
- 22 working days of holiday plus an additional Christmas break.




- Language lessons if you need to strengthen your language skills.
- The chance to play an active part in building the Quality & Testing department's data infrastructure, which will serve as the foundation for future Artificial Intelligence and predictive‑analytics tools.
- Cross‑learning sessions with colleagues from different departments, and who knows, in a few months you might be the one leading one.
- Annual training budget based on your needs and the opportunities within the company.
- A unique opportunity to grow your career in a rapidly scaling company, where your contributions will directly influence our first SOEC products and future industrial plant.
- Enrichment through cultural diversity: you will work alongside colleagues from India, UK, Poland, France, Pakistan, México, Argentina, Ecuador... different perspectives, shared values.
- Every Friday, from 11:00 to 12:00, we take a break to enjoy a good esmorzaret, a moment to disconnect, laugh and celebrate the week's small wins.
- The opportunity to contribute to a strategic project in the hydrogen sector.
- A direct contribution to industrial decarbonization through SOEC technology.
- Working in an environment where mistakes are part of learning and initiative is valued.

What the selection process looks like

- A video call with our People & Culture team to get to know each other.
- A technical test focused on data processing and analysis.
- An in‑person conversation with your future manager to assess technical and operational fit.

If everything aligns, we aim to make an offer as soon as possible, ideally within 3-4 weeks of first contact.

At Kerionics, we firmly believe in equal opportunities. All candidates will be considered regardless of gender, age, origin, sexual orientation, gender identity, religion or any other personal characteristic.

If you have a disability and need any adjustment or adaptation during the selection process, write to us confidentially at

About our culture

- We make everything possible . It's the spirit that drives our resilience, fuels our innovation, and pushes us to keep overcoming challenges.
- We speak up . Radical honesty is how we make ideas stronger and build trust.
- We get curious . Whether it's cracking a membrane problem or rethinking how we run a morning meeting, we explore, test and iterate.
- We've got each other's backs . We share knowledge, celebrate wins big and small, and help when someone's stuck.
- We value every background . Diversity isn't just talk, it's how we innovate better.
- We own it . We're proactive; we don't wait around. This is our project, and every one of us pushes it forward.
- We learn from our mistakes . We're not afraid to try, fail, and try again. That's how we turn bold ideas into real breakthroughs.
- We care . About safety, about impact, about the people next to us in the blue polo. Because the future we're building matters.

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📌 Test & Data Engineer | Hydrogen Technology (Comunidad Valenciana)
🏢 Kerionics
📍 Comunidad Valenciana