Asset Control Engineer

About Capalo AI

Capalo AI is a fast-growing energy technology company scaling software that actively operates large-scale battery energy storage across Europe. Our platform is already live in production, supporting real assets in real energy markets as renewable generation and grid flexibility needs accelerate.

As we grow, we're building robust systems that handle real-time data, market interactions, and high-reliability control flows. Engineers at Capalo work close to production systems, solving practical scaling and reliability challenges where software decisions have direct physical and commercial impact.

About the Role

We are looking for an Asset Control Engineer to join our Production team. You will own the software components that handle communication between our VPP and physical assets — the protocols, control logic, and tooling that make it possible to connect and operate battery systems and renewable production reliably.

Where our Asset Integration Engineers handle individual integration projects with PPC (Power Plant Controller) providers, your focus is on the platform side: building and maintaining the systems, documentation, and validation tooling that make every integration faster, more reliable, and more autonomous.

Key Responsibilities

Communication Protocols & Control Logic

• Own and develop the VPP components responsible for asset communication over IEC 104, MQTT, and related protocols

• Design and maintain protocol-level interfaces that work reliably across different PPC vendors and hardware configurations

Documentation & Integration Standards

• Maintain and improve the technical documentation used by PPC providers connecting to our VPP

• Define communication specifications, signal lists, and integration requirements that external vendors follow during onboarding

• Keep documentation aligned with evolving TSO requirements and protocol changes across markets

Validation Tooling & Test Frameworks

• Develop tooling used by Asset Integration Engineers and PPC providers to validate that hardware and software behave as expected end-to-end

• Build automated test suites for TSO requirements such as Grid Code Compliance tests and ancillary service prequalification (FFR, FCR-D, aFRR, mFRR)

• Create reusable validation frameworks that reduce manual effort and catch issues before they reach production

Platform Development & Reliability

• Improve the reliability and observability of the control path between Zeus VPP and connected assets

• Identify and fix systemic issues surfaced by integration projects, turning one-off fixes into platform improvements

What We’re Looking For

There’s no single background that fits this role. You might come from energy tech, IoT, or industrial control systems. You might be a backend engineer looking to work closer to physical systems. What matters is strong engineering fundamentals and a willingness to learn the domain.

• Strong software engineering fundamentals and experience building production backend systems

• Experience with industrial communication protocols (MQTT, IEC 104, ICCP, Modbus, or similar)

• Ability to write clear technical documentation aimed at external engineering teams

• A sharp debugging instinct and genuine curiosity about why things fail

• Strong ability to learn new technical concepts quickly

Nice to Have

• Understanding of control theory concepts

• Experience with SCADA, EMS, VPPs, or other industrial control platforms

• Familiarity with BESS or other distributed energy resources

• Experience with Django

• Background in electrical engineering or physics

• Experience with AWS or other cloud environments

Team Context

The Asset Control Engineer sits within the Production team and works closely with Asset Integration Engineers, who manage individual integration projects with PPC providers. While Asset Integration Engineers act as project managers driving vendor relationships and day-to-day integration coordination, the Asset Control Engineer focuses on the technical platform: the control software, protocols, documentation, and tooling that the integration team and PPC providers rely on.

Feedback from integration projects flows back to you as requirements for new features, fixes, and improvements to the platform.

Why Join Capalo AI?

• Meaningful Impact: Your work directly facilitates the transition to renewable energy and helps lower carbon emissions globally.

• Cutting-Edge Tech: Work at the intersection of industrial control systems, cloud infrastructure, and the physical energy grid.

• Growth & Ownership: As an early member of a scaling team, you’ll have significant influence over our technical direction and culture.

• Collaborative Culture: Join a mission-driven team where technical excellence thrives in a collaborative, supportive environment.

• Career Progression: Start as an individual contributor with the potential to grow into leadership as Capalo AI scales.

• Based in the heart of Helsinki: Our central office is a great place to collaborate, focus, and spend time with wonderful colleagues.

How to Apply

If this sounds like a role where you’d thrive, we’d love to hear from you!

We value diverse perspectives and encourage candidates from all backgrounds to apply.

Apply by submitting your application through our recruitment system. We review applications on a rolling basis and may begin the process as soon as we receive them.