Klaviyo
AI Engineer II
Boston, MA · Mid
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~45% per draw at Level III). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
$22,237 more — $138,237 — moves this role to Level II and 2 lottery entries. That figure is inside the range the employer already advertised.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $138,237 would place this position at wage Level II. That figure is within the posted range, and I'd like to target it. This role classifies under "Software Developers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · Boston-Cambridge-Newton, MA-NH. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
Employer immigration record
from this employer's Department of Labor filings
Green-card filing pattern in this occupation
Green-card follow-through: 79%
Files H-1B transfers
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
Community outcomes
No reports yet — be the first to help the next applicant.
About the role
- Contribute to solving applied AI problems across retrieval and RAG, grounding, hallucination mitigation, model selection, and choosing between LLM-based, deterministic, or hybrid approaches.
- Improve system reliability through guardrails, retries, fallbacks, observability, monitoring, and thoughtful failure handling.
- Participate in an on-call rotation and help diagnose, mitigate, and learn from production incidents.
Responsibilities
- Visit klaviyo.com/careers to see how we empower creators to own their own destiny.
- Build and improve reliable backend systems and APIs that power AI-driven customer experiences.
- Develop production agentic features involving tool use, context management, retrieval, structured outputs, orchestration, and multi-step workflows.
- Build and use evaluation approaches including representative datasets, automated and human evaluation, regression testing, qualitative error analysis, and production signals.
- Build asynchronous and distributed processing workflows that support AI workloads at scale.
- This creates a unique opportunity to build state-of-the-art AI systems that help businesses create and execute better customer experiences at scale.
- You'll independently own meaningful pieces of larger systems, contribute to technical decisions, and continue developing your depth across backend engineering, applied AI, and production reliability.
Requirements
- You are proficient in Python and have experience with modern backend frameworks such as FastAPI or Django.
- You have experience with asynchronous processing or distributed task/event systems such as Celery, Kafka, SQS, RabbitMQ, or Redis.
- You have working knowledge of databases, data modeling, APIs, and persistence patterns used in production systems.
- You are comfortable working in cloud environments and have experience with technologies such as AWS, containers, Kubernetes, infrastructure automation, or CI/CD systems.
- You can reason about tradeoffs among quality, latency, cost, reliability, and implementation complexity, and know when to seek additional technical context.
- You are comfortable working through ambiguity, breaking larger problems into smaller pieces, and making progress without every requirement being fully specified.
Nice to have
- Experience with evaluation infrastructure such as LLM-as-judge systems, evaluator calibration, benchmark datasets, or AI quality tooling.
- Experience operating AI systems at meaningful production scale or optimizing inference cost, latency, or throughput.
- 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.
- Travel is coordinated in advance.
- Get to Know Klaviyo
Compensation
- Our salary range reflects the cost of labor across various U.S. geographic markets.
Company info
- At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day.
- Klaviyo serves more than 167,000 customers and processes billions of consumer profiles, messages, interactions, and conversion signals.
- We're looking for an AI Engineer to join the Customer Agent team, Klaviyo's AI-native conversational platform.
- Work with external customers and cross-functional partners to understand workflows, identify pain points, and translate feedback into product improvements.
Visa & Work Authorization
- 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
This listing is sourced directly from Klaviyo's careers page and normalized into a canonical job model.