Senior Software Engineer - Profiles, Identity, Consent

Bostonsenior

EngineeringSoftware Engineer

0 views0 saves0 applied

Apply Now

Quick Summary

Requirements Summary

Senior Software Engineer About the Team: Profile data is the bedrock upon which Klaviyo’s entire product ecosystem is built. The Profiles, Identity,

Technical Tools

EngineeringSoftware Engineer

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.

Responsibilities

~1 min read

→Design and operate scalable distributed systems for identity resolution and consent
→Collaborate cross-functionally to translate requirements into robust technical designs
→Author technical design docs and service contracts for operational excellence
→Participate in on-call rotations to continuously improve system reliability
→Provide technical mentorship and conduct thoughtful code and design reviews
→Delegate implementation to AI agents by defining clear intent and rigorously verifying outputs for security and correctness

7+ years of software engineering experience with strong computer science fundamentals
Expertise in building backend service-oriented applications and REST/gRPC APIs
Hands-on experience scaling distributed systems for performance and consistency.
Proficiency with streaming and batch processing systems
Production experience with relational database schema design and optimization
Excellent communication skills for leading execution and driving team alignment
BA/BS in Computer Science, a related field, or equivalent practical experience
Expertise in agentic AI workflows to safely increase development throughput while preserving architectural coherence

Languages: Python, SQL, Golang
Databases: Aurora MySQL, ProxySQL, Redis
Streaming and Batch: Apache Kafka, Pulsar, Spark, Iceberg
Infrastructure: AWS, Terraform, Docker, Kubernetes, Buildkite

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

What We Offer

~2 min read

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.

IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls.

By clicking "Submit Application" you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice. If you do not wish for Klaviyo to process your Personal Data, please do not submit an application. You can find our Job Applicant Privacy Notice here and here (FR).