At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny.
At Klaviyo, the ARIA (Applications, Resources, Intelligence, and Automations) team is building AI systems that transform how our employees work. As an AI Builder Resident, you’ll join a cohort of builders focused on developing AI-powered internal tools that automate workflows, improve knowledge access, and unlock productivity across the company.
This is a 1-year, hands-on builder program (starting June 22, 2026) designed for candidates who have demonstrated the ability to build real things with AI. You’ll embed directly with business teams, working on high-impact problems and shipping production-ready agentic AI solutions. This role focuses on building and deploying agentic and LLM-powered applications in production, with an emphasis on learning, execution, and growing your ability to work across the AI system stack.
This role sits at the intersection of engineering, product thinking, and real-world problem solving. It emphasizes execution, curiosity, and ownership, with the expectation that you’ll actively build, iterate, and deploy—not just observe. This role is designed to accelerate your growth by giving you direct ownership of real problems and production systems from day one.
Apply Today! Applications are open until 9 am ET on Monday, April 27. You are required to submit a video demonstration and README documentation (linked template) as part of your application. Video reviews will take place the week of April 27 and invitations for Klaviyo's Builder Day will be extended in early May.
How You’ll Make an Impact- Embed with business teams to identify opportunities: Partner with internal teams to uncover workflow inefficiencies and translate ambiguous business problems into AI-powered solutions. Own problems end-to-end from discovery through deployment, not just execution.
- Build AI-powered workflow automations: Design and implement solutions that automate repetitive or complex tasks using LLMs and agentic workflows.
- Develop agent-based systems and integrations: Build AI agents that can take actions, chain tasks, and integrate with internal systems (e.g., HR, CRM, ticketing tools). Surface insights and patterns from deployments to inform broader AI platform and tooling improvements
- Ship internal AI tools into production: Use AI-assisted coding tools to rapidly prototype, gather feedback, iterate, and deploy scalable, production-ready systems used by teams across Klaviyo. Ensure solutions are adopted and deliver real impact.
- Advance team AI maturity: Help teams move from basic AI usage to more advanced capabilities (e.g., structured workflows, agent orchestration, deeper integrations)
- Collaborate to scale solutions: Work directly with stakeholders day-to-day and alongside teams such as Amplify and GTS to deploy and operationalize AI solutions at scale.
- Contribute to a culture of building: Act as a visible example of Klaviyo’s “built different” mindset—taking initiative, experimenting rapidly and delivering tangible results.
We are open to a variety of backgrounds. The most important signal is your ability to build and ship with AI.
Core Qualifications
- Able to work on-site in Boston for the full 1-year program (40 hrs/week) starting on June 22
- Demonstrated experience building something real with AI (e.g., side project, automation, product, tool, or workflow)
- Comfort using AI-assisted coding tools to develop and iterate quickly
- Working knowledge of Python and/or modern scripting/backend tools
- Familiarity with best in class LLMs, APIs, and basic system integration concepts
- Ability to learn quickly and operate in a fast-paced, ambiguous environment, taking initiative to define and solve problems without waiting for direction
Candidate Profile
- Curious, resourceful, and action-oriented with a strong bias toward building
- Comfortable figuring things out independently and pushing projects forward
- Strong alignment with Klaviyo’s builder culture: curious generalists motivated by impact and continuous learning
- Does not require visa sponsorship now or in the future
Nice to Have
- Experience building agentic AI workflows
- Exposure to RAG systems, embeddings, or vector databases
- Experience integrating APIs or working with internal tools/systems
- Familiarity with cloud platforms (AWS, GCP, Azure)
- Background can vary across software engineering, IT, or career-switch paths (Computer Science degree not required)
- Exposure to frontend or full-stack development
This program is designed to unlock a new type of AI builder at Klaviyo—people who can quickly identify problems, build solutions, and drive impact with AI. You’ll help shape how internal teams adopt and scale AI, while gaining hands-on experience with agentic systems, LLM applications, and real-world deployment.
Privacy Notice – Video & Project Submissions
As part of your application for the AI Builder Resident Program, Klaviyo collects the video demonstration and project materials (including README documentation and source code) you submit. We use this information to evaluate your candidacy for the program. Your submission will be reviewed by members of Klaviyo's AI Builder hiring and evaluation committee and will be treated confidentially. For full details on how Klaviyo processes your personal data as a job applicant, please review our Job Applicant Privacy Notice. By submitting your application, you acknowledge that you have read and understood this notice.
Massachusetts Applicants:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Our salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.
In addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility.
Your recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.
This role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.
Get to Know Klaviyo
We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.
AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed.
By participating in Klaviyo’s interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.
Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.
Top Skills
Klaviyo Boston, Massachusetts, USA Office
We're in the heart of the Financial district with easy access to public transportation and a short walk from South Station. We also have hubs in Denver, London and Sydney.
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