BESS Engineer

Job Description

Are you an energy engineer passionate about solving complex technical challenges and accelerating the clean energy transition?

Fantastic – welcome to Alight! We're a fast-growing scale-up with a bold purpose: to kick carbon off the grid by helping businesses save money with solar — and now also storage — from day one. As one of Europe’s leading solar IPPs, we’re scaling up our BESS capabilities and need brilliant minds to help us make it happen.

That’s where you come in. As our first BESS Engineer, you’ll play a central role in shaping Alight’s battery storage offering. This is a rare opportunity to take part in both project execution and product design — building our BESS capabilities from the ground up and creating a true impact on the energy system of tomorrow.

Your impact

This is a hybrid position combining Product Engineer and Project Engineer responsibilities. At the start, your focus will be on integrating BESS into current projects (~70% project execution / ~30% product development). As internal knowledge grows, the role will shift towards 100% product ownership — defining our system architecture and guiding the full BESS lifecycle.

What You'll Do

Across All Stages:

• Design and optimize BESS solutions: system sizing, architecture, component selection
• Ensure compliance with grid codes, safety standards, and certifications
• Develop and maintain design guidelines, technical specifications, FAT procedures, and commissioning protocols
• Support supplier selection and contract negotiations, especially technical annexes
• Align with Revenue, Development, and Construction teams on technical and commercial viability

When Focused on Product Engineering:

• Lead the full product lifecycle of our BESS systems — from concept to commissioning
• Propose innovative solutions to complex challenges in design and integration
• Mentor and train internal teams on BESS technologies and standards
• Translate regulatory, market, and grid requirements into technical designs

When Focused on Project Engineering:

• Lead or support design reviews to ensure technical compliance and performance
• Coordinate with EPCs, Owner’s Engineers, and Technical Advisors on execution and testing
• Modify and adapt base designs to project-specific needs
• Ensure smooth handoffs across Development, Engineering, and Construction teams

We’re looking for you

You’re probably a BESS or energy systems engineer with a strong technical background and a genuine interest in clean tech innovation. Whether you come from a project delivery or product development angle — or ideally both — you love solving problems, building systems, and working across departments.

Must-haves:

• Bachelor's degree in Electrical Engineering or similar
• 4+ years in BESS or related energy sector roles
• Deep understanding of BESS technologies (especially LFP), system design, grid integration
• Experience with SCADA, QA/QC, and CAD tools
• Comfortable communicating across suppliers, contractors, and internal teams
• Fluent in English (C1 Level)

Nice-to-haves:

• Experience in the Nordic market
• Familiarity with ancillary services (FCR, aFRR, etc.)
• Nordic language skills (Swedish, Finnish)

What's in it for you

You’ll join a diverse, mission-driven team in a flat, transparent, and coaching culture. With full flexibility and lots of autonomy, we make sure you have the tools, time, and support to thrive. Our culture rewards curiosity, ambition, and collaboration.

OTHER THINGS WE WANT YOU TO KNOW

• At Alight, we know the benefits that follow a diverse team, hence we’re looking broadly for talent!
• Our largest hubs are in Stockholm and Madrid, but our staff is spread across Europe, and our hybrid ways of working provide everyone with a fully flexible work setup
• We have a fun office vibe with regular team dinners, breakfasts and AWs, and sports activities. For example, we have a session with a running coach every Tuesday, and other ad hoc sports activities organized by employees, always paid for by the company
• Quarterly company events where we gather our remote team for a few days. This always includes some fun activities such as sailing, skiing etc.
• Flexible working hours and full flexibility to decide when to work remotely/at the office

Sounds like a fit?

Apply today!