Senior Backend Engineer (Go) - Sunnyale, California

A bit about Cantina:

Cantina, founded by Sean Parker, is a new social platform with the most advanced AI character creator. Build, share, and interact with AI bots and your friends directly in the Cantina or across the internet.

Cantina bots are lifelike, social creatures, capable of interacting wherever humans go on the internet. Recreate yourself using powerful AI, imagine someone new, or choose from thousands of existing characters. Bots are a new media type that offer a way for creators to share infinitely scalable and personalized content experiences combined with seamless group chat across voice, video, and text.

If you're excited about the potential AI has to shape human creativity and social interactions, join us in building the future!

A bit about the role:

Join our team as a Senior Software Engineer to develop and run the core components of our AI messaging router backbone. This critical infrastructure supports handling millions of messages using complex message routing, intent detection, and maintaining stateful interactions with GenAI and other microservices in our infrastructure.

What you’ll do:

  • Build and maintain key modules such as timing mechanisms, intent detection, memory and routing as part of our distributed go service.
  • Manage the full lifecycle of these services, from testing for robustness to deploying in a high-load, production environment.
  • Ensure maintainability, scalability and reliability of the service.
  • Work closely with cross-functional teams including founders to integrate AI capabilities, such as LLMs and other microservices.

A bit about you:

  • Proven experience in developing and operating large-scale backend systems. 
  • Go in a production environment (minimum 4 years).
  • Strong familiarity with relational databases such as PostgreSQL or MySQL.
  • Experience with designing and maintaining large-scale messaging and/or event-driven architectures.
  • Understanding of Generative AI principles, inference techniques, and prompt management (preferred, but not required).
  • Excellent communication skills with the ability to articulate technical concepts clearly and effectively.
  • High level of agency and self motivation, and a proven track record of developing complex systems quickly and independently.
  • Enthusiasm for the dynamic pace and impact of startup environments, with a strong commitment to achieving technical excellence and innovation.


We have offices located in Sunnyvale, CA, San Francisco, CA, and Brooklyn, NY. While we offer fully remote and hybrid employment opportunities, our team strongly desires candidates to be available to work in the Bay Area or within the Pacific Time Zone (PST)

Pay Equity: 

In compliance with Pay Transparency Laws, the base salary range for this role is between $150,000-$225,000. When determining compensation, a number of factors will be considered, including skills, experience, job scope, location, and competitive compensation market data.


  • Flexible working arrangements – remote, office, or hybrid – the choice is often yours. We are open to ensuring quality candidates don’t experience barriers to success.
  • Health Care –  99% company-paid health care, dental and vision (through amazing providers).  Taking care of our employees and their covered dependents is one way we demonstrate we care.
  • $500 Monthly Stipend  – Used for food, fun, travel, education to name a few… In general, almost anything goes.
  • Mental wellbeing support – Access to an EAP (personal issues/financial/substance counseling), online  therapy for mental health, is one more way we demonstrate our care.
  • Equity – Full-time employees are rewarded with equity – we all have a shared stake in Cantina’s success.
  • 401(K) — Eligible to participate on day one of employment – save for your future!
  • Short and Long Term Disability — Company paid.
  • Life Insurance — 1x base pay, 100% company paid.
  • Maternity/Paternity/Adoptive Leave — Generous maternity/paternity benefits.
  • PTO — 15 paid PTO/vacation days per calendar year.
  • Holidays — 13 paid holidays per calendar year.
  • Sick Pay — 9 sick days per calendar year.
  • Discounts — through Smart Perks.

#LI-Remote, United States


Job Profile


North America


United States


401(K) participation on day one of employment Equity Flexible working arrangements Health Care Mental wellbeing support Monthly stipend


Event-Driven Architectures Go Large-scale messaging architectures Relational databases

  • Build and maintain key modules
  • Develop and run core components of AI messaging router backbone
  • Ensure maintainability, scalability, and reliability
  • Integrate AI capabilities
  • Manage full lifecycle of services

4 years


Preferred candidates to be available to work in the Bay Area or within the Pacific Time Zone (PST)


America/Anchorage America/Chicago America/Denver America/Los_Angeles America/New_York Pacific/Honolulu UTC-10 UTC-5 UTC-6 UTC-7 UTC-8 UTC-9