Senior Software Engineer - Data Platform at Klaviyo in Boston, MA
- Company: Klaviyo
- Location: Boston, MA
- Posted: Sep 18, 2026
- Type: Full-time
- Salary: $148,000—$222,000 USD
- Experience: 7+ years
- Visa sponsorship available
Overview
We love tackling tough engineering problems and look for Engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort…
Job description
- We love tackling tough engineering problems and look for Engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort zone, learn new technologies and work hard to ensure each day is better than the last.
- Klaviyo operates a real-time data platform built for massive scale on Amazon Web Services (AWS). Engineers come to Klaviyo with experience in a variety of languages and from a number of disciplines.
Responsibilities
- Klaviyo operates a real-time data analytics platform written primarily in Python that is built for massive scale and hosted on Amazon Web Services (AWS). The Data Platform team builds tooling and establishes best practices and technology choices that help enable the Data Platform area to power core Klaviyo functionality and generate data-driven insights. As an engineer on this team, you will be responsible for designing, building, and maintaining our mission critical data and analytics infrastructure. You will work with a cross functional team to write technical design documents, create system infrastructure, write high quality code, and operate large scale systems in production. You will also review other engineer’s designs and code, and provide technical mentorship to other engineers on the team and in the broader engineering organization.
Requirements
- BA or BS Degree in Computer Science, related field, or equivalent experience
- 7+ years of experience in a software engineering discipline
- Highly skilled in using at least one modern programming language
- Experience provisioning infrastructure using Terraform or a similar infrastructure as code tool
- Experience designing, building, and operating distributed systems in a cloud computing environment
- Experience using Linux operating systems
- Experience with OLTP and OLAP databases
- Experience with high volume data processing and storage systems
- Able to communicate well, both verbally and in writing
- Able to work with others on a team
- Able to learn continuously and adapt to a high growth environment
- Able to stick with and solve difficult problems
Skills
Required
- Experience using Linux operating systems
- Experience with OLTP and OLAP databases
- Able to work with others on a team
Benefits
- 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.
- $148,000—$222,000 USD
About Klaviyo
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. Klaviyo is growing fast and we have openings for all skill levels across all of our teams. Learn more about our engineering culture at https://klaviyo.tech 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.