Form Energy Software Engineer interview questions & guide 2026

While the exact questions vary by team and seniority, the following categories represent the patterns you will encounter during your evaluation. These are designed to test your ability to bridge the gap between software principles and physical engineering challenges.

Technical & Domain Knowledge

These questions evaluate your grasp of fundamental software engineering principles and your ability to apply them to the specific domain of energy technology.

• Explain OOP with examples and discuss best practices for maintainable code.
• How would you design a control architecture for a hardware component?

Preparation at Form Energy should focus on demonstrating how your technical expertise solves physical-world problems. You need to show that you are as comfortable discussing software architecture as you are understanding the constraints of the hardware your code controls.

Technical Depth – You must be ready to discuss your past projects in detail, particularly how you architected solutions and handled technical trade-offs. Interviewers look for "first principles" thinking—the ability to break down a complex problem to its core components and build a solution from the ground up.

Cross-Functional Collaboration – Since you will work with scientists and hardware engineers, you must demonstrate the ability to communicate technical concepts to non-software stakeholders. Be prepared to explain the "why" behind your design choices, not just the "how."

Mission Alignment – Form Energy is mission-driven. Your interviewers will look for genuine interest in the company’s goal of enabling a renewable energy future. Be ready to articulate why our specific approach to long-duration storage excites you.

The hiring process at Form Energy is rigorous and thorough, reflecting the complexity of the problems we solve. You should expect a structured, multi-stage process that begins with recruiter and hiring manager screens. The core of the evaluation involves a deep dive into your technical background, often centered around a technical presentation where you showcase a past project to a panel of engineers.

The process is designed to be a two-way conversation. While we evaluate your technical and behavioral fit, you will have multiple opportunities to meet with various team members to understand the culture and technical challenges firsthand. Expect the process to be professional and focused on your ability to contribute to an interdisciplinary team.

This timeline illustrates the progression from initial screening to technical deep-dives and final panel interviews. Use this structure to manage your energy and preparation; treat the technical presentation as your primary opportunity to demonstrate your expertise and thought process. Note that while the process is generally consistent, the pace can vary based on team needs and project timelines.

Technical Presentation & Problem Solving

This is often the most critical part of the interview. You are expected to present a past technical project, detailing the challenges, your specific contributions, and the outcomes.

Be ready to go over:

• System Architecture – How you structured your code or system to be scalable and robust.
• Trade-offs – Why you chose specific tools or methods over alternatives.

As a Software Engineer, you will be responsible for developing the software that powers our battery systems. This includes creating data pipelines for monitoring, developing control algorithms for battery management, and building tools that improve the efficiency of our lab and manufacturing teams.

You will work closely with electrical engineers and data scientists to ensure that the software layer is tightly integrated with the physical hardware. Your day-to-day will involve writing clean, maintainable code, participating in architecture reviews, and debugging issues that occur in development or production. You are expected to be an active participant in the team’s technical culture, contributing to code reviews and documentation.

We look for candidates who combine strong software fundamentals with a pragmatic approach to engineering.

• Technical Skills – Proficiency in core programming languages (e.g., Python, C++, or Go) is essential. Experience with control systems, data acquisition, or distributed systems is highly valued.
• Experience – We value practical experience in building and deploying software in real-world environments. Whether you have experience in robotics, energy, or large-scale data systems, we want to see how you have applied your skills.
• Soft Skills – You must be a clear communicator who can thrive in a team-oriented environment. We value humility, a hunger for learning, and the ability to work through ambiguity.

Q: How long does the entire interview process take? A: While it can vary, the process typically spans 3 to 6 weeks from the initial recruiter screen to the final decision.

Q: Is the technical presentation mandatory? A: Yes, for most Software Engineer roles, the presentation is a core part of the process, allowing us to see how you think through complex, real-world problems.

Q: What is the culture like at Form Energy? A: We are a high-energy, mission-focused team. We value "being real," professional collaboration, and solving hard problems with a sense of urgency.

Q: Can I work remotely? A: Most of our engineering roles are site-dependent due to the nature of our hardware and lab work; please confirm the specific location requirements with your recruiter early in the process.

• Prepare your presentation – Ensure your technical presentation is clear, concise, and highlights your personal contribution. Practice it to ensure you stay within the time limit.
• Own your answers – When asked about past projects, be prepared to answer follow-up questions about the "why" behind your technical choices.
• Be a partner – Treat the interview as a collaborative session. If you are stuck on a hypothetical problem, think out loud; we care about your problem-solving process as much as the final answer.

Joining Form Energy as a Software Engineer offers the unique opportunity to build technology that fundamentally changes the energy landscape. By focusing on your technical foundations, demonstrating your collaborative spirit, and clearly articulating your past experiences, you will be well-positioned to succeed in our interview process.

For additional interview insights, practice questions, and comprehensive preparation resources, be sure to explore Dataford. We encourage you to review your past projects, prepare your technical narrative, and approach each conversation as an opportunity to showcase your passion for engineering.

The compensation data provided above reflects typical ranges for this role. Candidates should interpret these figures as a starting point, as final offers are dependent on years of experience, specific technical expertise, and the seniority of the level being filled. Compensation at Form Energy is designed to be competitive and reflects the high-impact nature of the work you will be doing.