Senior Software Engineer Profiles, Identity, Consent
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Job Location:
Boston, NH - USA
Monthly Salary:
Not Disclosed
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Job Summary
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 youre a close but not exact match with the description we hope youll still consider applying. Want to learn more about life at Klaviyo Visit see how we empower creators to own their own destiny.
Position Title: Senior Software Engineer
About the Team: Profile data is the bedrock upon which Klaviyos entire product ecosystem is built. The Profiles Identity and Consent teams tackle massive distributed systems challenges operating at a breathtaking scalestoring tens of billions of records and processing billions of reads and writes every single day. We own the highly available platform that defines who a customer is and how they can be reached. By partnering with data warehousing segmentation and messaging teams you will architect the foundational data pipelines that power Klaviyos core product capabilities worldwide.
Key Responsibilities:
- 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
Required Skills:
- 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
Team Tech Stack:
- 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
Required Experience:
Senior IC
Key Skills
About Company
Klaviyo unifies AI-powered email marketing and SMS to drive growth, retention, and measurable results. Build personalized, omnichannel experiences across WhatsApp, ecommerce, and more with K:AI Agents.
