Array Technologies Software Engineer interview questions & guide 2026

The following questions are representative of the patterns observed in recent Array Technologies interviews. While specific questions may shift depending on the team’s current project focus, the interviewers consistently prioritize your ability to connect your past experience to the practical demands of their engineering environment.

Technical & Domain Proficiency

This category evaluates your core technical toolkit and your ability to apply software principles to industrial hardware.

• What is your level of experience with STM32 platforms?
• Can you describe your proficiency in Python and C/C++ for embedded systems?

Preparation for Array Technologies requires a focus on both your technical depth and your ability to articulate your engineering philosophy. You should arrive ready to discuss not just the "how" of your coding, but the "why" behind your design choices and project management strategies.

Technical Competence – Your interviewers will assess your hands-on mastery of languages like C/C++ and your familiarity with industrial hardware interfaces. Be prepared to provide concrete examples of how you have solved technical hurdles in previous roles.

Project Ownership – The team values engineers who see projects through to completion. You should be able to walk a panel through a full project lifecycle, highlighting the challenges you faced and the specific technical decisions you made to overcome them.

Collaboration and Communication – Array Technologies operates in a highly cross-functional environment. Your ability to communicate technical concepts to non-technical stakeholders and work effectively with other engineering disciplines is a key indicator of your potential success.

The interview process at Array Technologies is designed to be straightforward and focused on technical compatibility. You can expect a professional, efficient experience that moves from initial screening to detailed technical discussions. The process typically emphasizes a combination of behavioral discussions about your project history and technical assessments of your coding and design skills.

You will likely interact with a variety of stakeholders, including recruiters, direct managers, and senior engineering staff. The atmosphere is generally described as welcoming and transparent, with a clear focus on assessing your practical skills rather than testing you with abstract or theoretical puzzles.

This visual timeline illustrates the progression from initial screening to final technical and behavioral rounds. Candidates should interpret this as a path of increasing technical depth; early rounds focus on your history, while later rounds delve into specific coding and systems-design competencies. Use this to pace your preparation, ensuring you are ready for both high-level project summaries and granular technical testing.

Embedded & Control Systems

This area focuses on your ability to work at the hardware-software interface. Success here is defined by your comfort with low-level languages and your understanding of how software commands manifest in physical motion or data acquisition.

Be ready to go over:

• PLC Programming – Understanding ladder logic and industrial control sequencing.
• Embedded C/C++ – Writing efficient, reliable code for microcontrollers.

As a Software Engineer at Array Technologies, your primary responsibility is the development and maintenance of control systems that keep solar trackers performing at peak efficiency. You will be responsible for writing robust code, debugging system failures, and ensuring that software solutions are compatible with the mechanical and electrical components of the product.

You will frequently collaborate with mechanical and electrical engineers to integrate software into the broader system architecture. This involves participation in design reviews, field testing support, and the constant refinement of existing codebases to improve performance or address new site-specific requirements.

A competitive candidate at Array Technologies demonstrates a mix of formal technical training and hands-on experience in industrial or embedded environments.

• Must-have skills: Proficiency in C/C++, experience with PLC-based control systems, and a solid understanding of embedded software development.
• Nice-to-have skills: Experience with Python for automation or data analysis, familiarity with CAD tools, and previous experience in the renewable energy or industrial automation sectors.
• Experience level: Most roles require a proven track record of project completion, with a preference for candidates who have experience working in cross-functional engineering teams.

Q: How difficult are the technical assessments? A: The technical tests are generally viewed as practical and aligned with the day-to-day requirements of the role. If you have a solid foundation in C/C++ and control systems, you should find them fair and relevant.

Q: What is the team culture like? A: The culture is described as welcoming and professional. You will find an environment that values clear communication and collaboration between software and hardware teams.

Q: How long does the process typically take? A: While timelines can vary, the process is generally efficient, consisting of a few rounds of interviews with a clear transition between steps.

• Own your projects: When discussing past work, be specific about your personal role. Use the STAR method (Situation, Task, Action, Result) to keep your answers structured.
• Show your work: If you have examples of code, design documents, or project outcomes that you are allowed to share, be prepared to talk through them in detail.
• Focus on the hardware: Remember that your code is controlling physical assets. Always frame your technical answers with an awareness of the mechanical and environmental constraints.
• Be transparent: If you haven't worked with a specific tool or language, be honest and explain how you would learn it or how your existing skills translate to that new technology.

The Software Engineer position at Array Technologies is an excellent opportunity to impact the future of renewable energy through precision software and control systems. Success in this process is rooted in your ability to demonstrate technical proficiency, project ownership, and a collaborative mindset. By focusing on your hands-on experience and preparing to discuss your design decisions in depth, you will be well-positioned to succeed.

You can explore additional interview insights, practice questions, and preparation resources on Dataford.

The compensation data provided reflects the typical range for this role based on recent postings. Candidates should interpret these figures as a starting point, understanding that actual offers are influenced by your years of experience, specific technical expertise, and the level of the position (e.g., Engineer I vs. III). Use this information to benchmark your expectations and prepare for compensation discussions during the final stages of the process.