Calix Principal Software Engineer reviews

4.3

99% would recommend to a friend

(25 total reviews)
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Michael Weening

100% approve of CEO

99% positive business outlook

Principal Software Engineer employees have rated Calix with 4.3 out of 5 stars, based on 25 company reviews on Glassdoor. This indicates that most Principal Software Engineer professionals have an excellent working experience there. Calix is rated in line with the average (within 1 standard deviation) by Principal Software Engineer professionals compared to other employers within the Information Technology industry (3.6 stars).

Reviews by job title

25 reviews
3.0
Apr 28, 2026
Recommend
CEO approval
Business Outlook

Pros

Work from Home whole time

Cons

Laid off most staff in US

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Calix Response
2mo
Thank you for taking the time to share your feedback. We’re glad to hear that the flexibility of working from home is a positive part of your experience. As Calix has continued to grow and evolve, we’ve made intentional organizational changes to support our strategy and future success. These shifts are part of how we adapt as a company, and we continue to maintain a strong and growing presence across our U.S. workforce. We appreciate you sharing your perspective, and feedback like this is important as we continue to support our teams and strengthen the employee experience.
4.0
Feb 12, 2026
Recommend
CEO approval
Business Outlook

Pros

good work life balance, surrounded by talented and experience people in the domain, lot of interesting work to pick, freedom to innovate and express,

Cons

teams in different geographies, late night meetings, small or nill raises, stagnant stock values

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Calix Response
4mo
Thank you for sharing your feedback. We’re glad to hear you’ve experienced strong work–life balance, the chance to work with talented colleagues, and the freedom to explore interesting projects and innovate. We also appreciate you calling out areas where we can improve. Cross‑geography collaboration can be demanding at times, and we’re taking steps to reduce the burden of late‑night meetings. We understand concerns around compensation and stock performance and regularly evaluate both to stay aligned with market expectations. Your advice regarding leadership engagement and fairness is valuable. We take this feedback seriously and remain committed to fostering a transparent, equitable, and high‑performing culture. We appreciate your candid perspective as it helps us continue to get better!
5.0
Feb 24, 2025
Recommend
CEO approval
Business Outlook

Pros

As a Principal Software Engineer at Calix, Inc., I’ve had the privilege of working at a company that not only leads the telecommunications industry but also genuinely invests in its employees. Calix specializes in delivering software platforms, systems, and services that empower broadband service providers, and it’s exciting to be part of a team helping shape the future of connectivity. With a strong emphasis on value-add from every department—R&D, engineering, customer success, sales, TAC, and beyond—this is a workplace that thrives on collaboration and balanced contributions, creating an environment where everyone’s efforts matter. One of the things I appreciate most is the freedom to innovate. In my role, I’ve seen firsthand how Calix encourages fresh ideas, whether it’s enhancing products like the Calix Broadband Platform—which simplifies network management for service providers—or contributing to cutting-edge solutions like the GigaSpire systems that elevate smart home and business experiences. The company is constantly exploring new avenues and markets, with offerings like the AXOS Network Innovation Platform driving its dominance in the access network space. This forward-thinking approach means there’s always scope for professional growth, no matter your role. Calix’s leadership, with a strong CEO and CTO at the helm, sets a clear vision that inspires confidence. Their focus on expanding into new markets and rolling out innovative products makes this an exciting time to be here. The company rewards initiative and hard work generously—something I’ve experienced personally. As someone who contributes to technical advancements, I can say Calix values its employees’ efforts and ensures they’re recognized, both through compensation and opportunities to take on bigger challenges. Beyond the work itself, Calix stands out for its employee-centric culture. From robust healthcare and mental well-being support to flexible work-from-home policies and recreation funds, the management and HR teams prioritize our needs. This balance of productivity and care is rare. Whether you’re in engineering tackling complex problems or in customer success ensuring clients thrive with solutions like Calix Cloud analytics, you’re supported by a structure that fosters both personal and professional growth. For job seekers, I’d strongly recommend considering Calix. It’s a company with a promising future, backed by innovative products and a culture that rewards contribution. Look at the full picture—growth opportunities, supportive policies, and a chance to work on impactful technology—and you’ll see why it’s a standout choice. After my time here, I can confidently say it’s a place where you can build a meaningful career.

Cons

As a smaller player compared to FAANG giants, Calix sometimes faces the challenge of balancing innovation with the cost of attracting top-tier engineers. While it strives hard to compete, it occasionally overextends to secure talent, which can stretch resources thin. The company invests heavily in employee perks like free transport, breakfast, lunch, and dinner—which is fantastic for work-life convenience—but some might argue this could be redistributed as direct monetary benefits, though it’s a matter of preference. Minor drawbacks include occasional process hiccups typical of a growing company and limited brand recognition compared to tech titans, but these rarely impact day-to-day work or career growth.

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Glassdoor has 1,212 Calix reviews submitted anonymously by Calix employees. Read employee reviews and ratings on Glassdoor to decide if Calix is right for you.