Senior Web Developer (Backend)
Plexuss
Walnut Creek, CA 94596$70,000 - $130,000 a yearFull Time
Job Description
We’re looking for an experienced engineer who has worked on large-scale B2C websites with significant traffic. Plexuss.com and our related platforms serve millions of students, and organic discovery is a core driver of our growth. This role is ideal for someone who understands backend systems deeply, thinks methodically, and enjoys solving complex problems that directly impact real users.
You’ll play a critical role in maintaining, optimizing, and evolving a high-traffic platform—while also helping us thoughtfully integrate AI-driven capabilities as we grow.
We are a strong believer that cultural fit is a strong contributor to long-term employee contentment. Help us determine if this role is a good fit for you by completing our mandatory hiring questionnaire(this takes less than five minutes to complete):
https://forms.gle/Ak97Zn41wRJEwNpUA
*What You’ll Do*
* Own and improve backend systems supporting high-volume B2C websites
* Partner closely with product and data teams to optimize site performance and scalability
* Lead and support SEO-related technical architecture (indexing, crawlability, performance, structured data, etc.)
* Troubleshoot and solve complex system and performance issues in a methodical way
* Help evaluate and integrate AI-driven tools and workflows into our platform
* Contribute ideas and improvements in a small, highly collaborative engineering team
*Who You Are*
* Experienced working on large B2C websites with meaningful traffic volume
* Deep backend expertise and strong system-level thinking
* Strong understanding of technical SEO and organic traffic strategy
* A problem solver who is structured, curious, and detail-oriented
* Interested in learning, experimenting, and growing alongside AI technologies
* Comfortable working in a small team where collaboration and accountability matter
* Cordial, team-oriented, and communicative
*Why Join Plexuss*
* Average employee tenure is 8 years—most of our core team has been together since 2015
* A stable, growing company with a positive, team-first culture
* A small team where your contributions are visible, valued, and impactful
* Opportunity for long-term growth and professional development
* Excellent work-life balance: weekends are protected and the team wraps up by 5:30 pm
* Onsite collaboration is required—we value in-person communication and shared ownership of outcomes
If you’re looking for a company to stay with, grow alongside, and meaningfully contribute to—while maintaining a healthy work-life balance—this is a rare opportunity.
Pay: $70,000.00 - $130,000.00 per year
Benefits:
* 401(k)
* 401(k) matching
* Dental insurance
* Health insurance
* Paid time off
* Vision insurance
Work Location: In person
You’ll play a critical role in maintaining, optimizing, and evolving a high-traffic platform—while also helping us thoughtfully integrate AI-driven capabilities as we grow.
We are a strong believer that cultural fit is a strong contributor to long-term employee contentment. Help us determine if this role is a good fit for you by completing our mandatory hiring questionnaire(this takes less than five minutes to complete):
https://forms.gle/Ak97Zn41wRJEwNpUA
*What You’ll Do*
* Own and improve backend systems supporting high-volume B2C websites
* Partner closely with product and data teams to optimize site performance and scalability
* Lead and support SEO-related technical architecture (indexing, crawlability, performance, structured data, etc.)
* Troubleshoot and solve complex system and performance issues in a methodical way
* Help evaluate and integrate AI-driven tools and workflows into our platform
* Contribute ideas and improvements in a small, highly collaborative engineering team
*Who You Are*
* Experienced working on large B2C websites with meaningful traffic volume
* Deep backend expertise and strong system-level thinking
* Strong understanding of technical SEO and organic traffic strategy
* A problem solver who is structured, curious, and detail-oriented
* Interested in learning, experimenting, and growing alongside AI technologies
* Comfortable working in a small team where collaboration and accountability matter
* Cordial, team-oriented, and communicative
*Why Join Plexuss*
* Average employee tenure is 8 years—most of our core team has been together since 2015
* A stable, growing company with a positive, team-first culture
* A small team where your contributions are visible, valued, and impactful
* Opportunity for long-term growth and professional development
* Excellent work-life balance: weekends are protected and the team wraps up by 5:30 pm
* Onsite collaboration is required—we value in-person communication and shared ownership of outcomes
If you’re looking for a company to stay with, grow alongside, and meaningfully contribute to—while maintaining a healthy work-life balance—this is a rare opportunity.
Pay: $70,000.00 - $130,000.00 per year
Benefits:
* 401(k)
* 401(k) matching
* Dental insurance
* Health insurance
* Paid time off
* Vision insurance
Work Location: In person