Build agents. Build agency. Build your career.
In Sierra’s early career program, you’ll get hands-on experience at the frontier of applied AI, building and launching products for leading global brands.
Finishing your degree soon, or recently graduated? If you want to make a real impact and work with great people, we’d love to build with you.
Why Sierra?
A culture of responsibility, not hierarchy
Our founders, Bret and Clay, met in Google’s early career program, where they were given a lot of responsibility from the start. They want you to have that same opportunity.
Unmatched breadth in applied AI
Build agents for some of the largest, most complex companies across industries, while gaining insight into a variety of great businesses and how they operate.
An opportunity to work with the best
Work alongside managers, mentors, and peers who will challenge you, support you, and help you grow.
A great start to your career
Build the adaptability and resilience to thrive in a fast-changing industry, with the support of a tight-knit team and connections that will last for years to come.
Hear it first-hand
Real stories from interns and new grads who’ve started their careers with us.
I've grown more than ever and have the privilege of solving challenging problems, like making one of our most complex agents sound like a true local across dozens of languages.
Josh Singh
APX Graduate
I helped build a voice agent for a Fortune 30 company as one of the main engineers — being trusted with that level of responsibility was incredibly meaningful.
Amran Hudda
Intern, Agent Engineering
People here are sharp and scrappy. Have an idea for something? Build it. There's a new capability every week that wasn't possible a month before.
Jenna Kim
New Grad, Agent Engineer
The level of ownership as an intern is unmatched. I've been trusted to build core inference infrastructure, identify problems worth solving, and work directly with customers.
Andrea Li
Intern, Platform Engineering
Everyone is just genuinely kind here. People are always willing to help and it never feels like a favor.
Ryan Lian
APX
The best place to start your career
For anyone thinking about starting a company of their own one day, we want Sierra to be the best place to learn how. From day one, you'll build AI agents used by millions — with experienced teammates mentoring you every step of the way, giving you skills that will carry through your whole career.
About APX
Learn by doing
The APX Program is our 12-month rotational program for exceptional new grads. You’ll rotate through both product and engineering — developing technical skills, product thinking, and a real understanding of customers.
Real ownership, real impact
From your first weeks, you’ll work directly with customers to build and launch AI agents used by millions of people. You’ll ship fast, tackle hard problems, and work closely with engineers, designers, researchers, and product leaders to bring ideas to life.
Where it leads
APX is inspired by the Google APM program that shaped Sierra's founders. It's for people who are curious, adaptable, and want broad experience early on. You'll graduate ready to lead with a foundation that's difficult to get anywhere else.
Hiring journey
We’ve designed our process to gain an understanding of how you think, build, and collaborate.
Apply
Submit your resume.
Technical assessment
Demonstrate how you think and solve problems.
Meet the team
Meet future teammates and collaborate on real-world scenarios.
Decision
Fast feedback and next steps.
FAQ
Here are some of the most common questions we get.