Back to jobs
New

Senior Full Stack Engineer (AI Agent)

Toronto, Canada (Remote)

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team member to work smarter and faster. Born from the prestigious Stanford AI lab, Cresta's co-founder and chairman is Sebastian Thrun, the genius behind Google X, Waymo, Udacity, and more. Our leadership also includes CEO, Ping Wu, the co-founder of Google Contact Center AI and Vertex AI platform, and CTO & co-founder, Tim Shi, an early member of Open AI.

Join us on this thrilling journey to revolutionize the workforce with AI. The future of work is here, and it's at Cresta.

 

Are you a full-stack developer who loves building beautiful user experiences and harnessing the power of cutting-edge AI? We’re looking for a Fullstack Engineer to join us at Cresta and help take our AI Agent Builder platform to the next level. In this role, you’ll focus primarily on the front-end (while diving into the back-end as needed) to create an intuitive builder that lets users craft their own AI agents with ease and confidence. You’ll work closely with Product, Design, AI/ML, and Data teams to bring this vision to life.

We’re looking for engineers with a high-agency mindset—people who take initiative, move projects forward without waiting for perfect instructions, and creatively navigate challenges. You’ll have the autonomy to drive impactful features end-to-end, shape user experiences that make AI accessible, and solve complex technical and UX problems with ownership and persistence.

Imagine working on a platform that gives people superpowers to build AI. That’s what the AI Agent Builder is all about – an innovative self-serve tool that empowers anyone to design and deploy AI-driven agents through a friendly interface. It’s cutting-edge AI meets intuitive design. By joining our team, you’ll be at the forefront of an exciting movement to democratize AI technology, making it accessible and impactful for businesses and users everywhere.

Responsibilities

  • Build amazing user interfaces: Use React and TypeScript to craft responsive, engaging front-end features. Make complex AI workflows feel simple and elegant, so that users of all technical levels can successfully build AI agents.
  • Work across the stack: When necessary, jump into our Python/Go back-end to create or improve APIs and services that power the Agent Builder. You’ll ensure that the front-end and back-end work together seamlessly to deliver a smooth user experience.
  • Collaborate & co-create: Partner with product managers to shape feature ideas and requirements. Brainstorm with designers to nail a user experience that is both powerful and easy to use. Work side-by-side with AI/ML engineers to integrate state-of-the-art AI capabilities (like our latest models and algorithms) directly into the product. Team up with data engineers to track how users interact with the platform, using insights from Postgres, ClickHouse, Elasticsearch, etc., to guide improvements.
  • Emphasize scalability: Contribute to the design of a system that can grow with our user base. Optimize performance whether it’s front-end rendering or back-end data queries, so the platform stays fast and reliable as more users build more agents.
  • Lead by example in code: Write clean, well-documented, and tested code. Perform code reviews, share best practices, and help elevate the team’s engineering standards. You’ll have the autonomy to own features from concept to deployment, ensuring they meet our quality bar at every step.
  • Solve tricky problems elegantly: Every day brings new challenges – maybe it’s how to simplify a complex configuration process or how to visualize AI behaviors in the UI. You’ll tackle these challenges with creativity, keeping the solutions user-focused. We love it when hard problems end up with simple, intuitive outcomes for our users!

Qualifications

  • Strong engineering background: You have around 5+ years of experience building software, with significant exposure to front-end development for rich, interactive web applications.
  • React & TypeScript guru: Deep knowledge of JavaScript/TypeScript and hands-on experience with React (or similar frameworks). You can build dynamic single-page applications and have a good sense for component design, state management, and performance in the browser.
  • Backend capable: Comfortable writing back-end code in Python and/or Go (or similar languages). You understand how to build APIs, work with databases, and wouldn’t shy away from digging into server-side logic when the situation calls for it.
  • Database and data savvy: Experience working with databases and data pipelines. For example, you’ve used PostgreSQL or other SQL databases, and maybe even played with analytics or search technologies like ClickHouse or Elasticsearch. You know how to design data models or queries that scale efficiently.
  • Design and UX mindset: You care about the user. Maybe you’re not a designer, but you have a knack for building UI features that are intuitive and delightful. You think about things from the user’s perspective and want to make complex things feel easy.
  • Problem solver: Proven ability to break down complex problems and come up with clean, workable solutions. You enjoy the puzzle of turning a hard technical or UX challenge into an elegantly resolved feature.
  • Collaborative communicator: You work well in a team and communicate clearly. You’ve collaborated with product managers, designers, or data scientists before, and you value everyone’s input. You’re comfortable discussing trade-offs and explaining your ideas to both technical and non-technical stakeholders.
  • Passionate about AI: You’re excited about the AI/ML space and the idea of working on a product that involves AI. You don’t need to be an AI expert, but you are eager to learn more about it and work alongside AI/ML experts to bring intelligent features to users.

Drive for excellence: Whether it’s writing quality code, learning a new tool, or refining a user interaction, you have a drive to continuously improve. You take ownership of your work and pride in building something that truly empowers users and stands the test of time.

Perks & Benefits:

  • We offer Cresta employees a variety of medical, dental, and vision plans, designed to fit you and your family’s needs
  • Paid parental leave to support you and your family
  • Monthly Health & Wellness allowance
  • Work from home office stipend to help you succeed in a remote environment
  • Lunch reimbursement for in-office employees 
  • PTO: 3 weeks in Canada 

Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable. We are actively hiring for this role in the US and Canada. Your recruiter can provide further details.

We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain. Any outreach claiming to be from Cresta via other sources should be ignored.  If you are uncertain whether you have been contacted by an official Cresta employee, reach out to recruiting@cresta.ai

Apply for this job

*

indicates a required field

Resume/CV*

Accepted file types: pdf, doc, docx, txt, rtf

Select...
Select...

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Cresta’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Select...
Select...
Race & Ethnicity Definitions

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measure the effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categories is as follows:

A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability.

A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.

Select...

Voluntary Self-Identification of Disability

Form CC-305
Page 1 of 1
OMB Control Number 1250-0005
Expires 04/30/2026

Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Select...

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.