Engineering Manager, Integrations

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 careers.klaviyo.com to see how we empower creators to own their own destiny.
Team OverviewThe Integrations team is responsible for building and maintaining Klaviyo's integrations to a variety of 3rd party vendors. These vendors can be grouped across a number of industries such as ecommerce, point of sale, payment processing, advertising, and fundraising. In order to enable our customers to integrate with these different vendors we provide easy-to-use interfaces that guide our customers through the setup and management of an integration. Behind the scenes, we use a variety of pipelines to process data flowing to and from these vendors at a petabyte scale. We collaborate closely with internal stakeholders and have substantial exposure to Klaviyo's customers, including businesses, partners, and third-party developers.
How you'll make an impact
The Integrations team operates at the intersection of distributed systems, software architecture, data mapping & pipelining, scalability, and reliability. As an Engineer Manager, you will own and drive the technical vision of our existing integrations as well as help build new integrations across various verticals in a fast, flexible, efficient, and maintainable way, resulting in world class customer and developer experiences. Critical components of the Integrations space include Klaviyo's V3 APIs, 3rd party vendor's APIs, inbound and outbound data pipelines, and data mapping and transformation. You will have an opportunity to learn our existing end-to-end integration workflow and help scale it up to support the next evolution of Klaivyo's growth into several verticals. You'll work closely with a team of talented software engineers, data scientists, product managers, and UX/UI designers who are eager to make the process of integrating with Klaviyo fast, efficient, and seamless. Your technical leadership, outside-the-box thinking, and execution will help shape Klaviyo's trajectory for the next decade.
Who you are

• You are passionate about building software effectively and for the long-term.
• You have 6+ years of hands-on software development experience creating and maintaining highly available, full-stack SaaS products at scale.
• You have 3+ years of experience as an engineering manager, managing and leading high performance teams that have successfully delivered complex, cross-team software projects spanning multiple quarters, using the Agile methodology.
• You have an in-depth understanding of commonly used web architecture design patterns when it comes to highly scalable systems. You have proven expertise in applying those design patterns to implement highly-scalable multi-tenant systems.
• You have a strong understanding of popular AI tools (ChatGPT, Claude Code, Cursor, Gemini, etc.) and know how to use them effectively in your own day-to-day workflow as well as having your teams effectively use them for high productivity.
• You are a natural leader and mentor to the software engineers on your team. You know when to keep a task for yourself and when to delegate effectively and set others up for success. You continue to push yourself and your team to grow, collaborate, and get better.
• You have been a successful interface between the team and the rest of your product area. You have been responsible for the entire lifecycle of projects or features including design, development, and deployment, providing direction for others.
• You are an excellent communicator. Through effective communication, thought leadership, and consensus building, you have successfully been able to align your team behind your vision.
• You like to question convention, proactively find ways to innovate, and are intrinsically motivated to drive incremental improvements that deliver value to the business.
• You like working on small, autonomous agile teams. Enjoy shipping code early and often in an agile fashion, pairing with product management and business stakeholders to craft better software.
• You have experience setting higher-level technical direction and processes with the partnership of peers and senior management.
• You are successfully able to estimate and manage project timelines and risks to ensure the team will be in a position to deliver on its commitments.
• You like creating, teaching, and improving shared engineering processes.
• You have experience onboarding and mentoring new team members while fostering a learning culture and an environment where they can enhance their skills.
• You've already experimented with AI in work or personal projects, and you're excited to dive in and learn fast. You're hungry to responsibly explore new AI tools and workflows, finding ways to make your work smarter and more efficient.

Nice to have:

• Experience working with both monolithic and microservices architectures.
• Experience working in full-stack environments.
• Experience debugging performance issues and improving application performance.
• Experience working with AWS cloud technologies. GCP or Azure experience is also helpful.

What You'll do:

• Have an opportunity to make a major impact on the direction and priorities of the Integrations team - wholly owning features that 160,000+ customers rely on daily to reach 4B+ consumers to drive their business forward.
• Manage 2-3 teams of 4-6 engineers to deliver projects that enhance the capabilities of our integrations.
• Responsible for the technical/architectural ownership and evolution of our product area, anticipating scalability and reliability needs; contributing to the roadmap while collaborating alongside technical product owners and product managers.
• Promote use of best-in-class design patterns and be the technical guide to ensure our solutions are performant, secure, and scalable.
• Be empowered to own the mission, technical direction, and operations of projects that have immediate impact.
• Set standards for quality PR reviews for our code-owned areas of the application.
• Represent the Integrations team to the broader engineering org by participating in architectural design decisions, collaborating with product owners, and providing technical expertise on upcoming product specifications and technical RFCs.
• Lead by example and help improve engineering processes and workflows within the Integrations space as well as in the wider engineering community.
• Participate in the technical interview process to help maintain a high bar for our growing teams.

Tech Stack:
Klaviyo operates a real-time data analytics platform coded primarily in Python that is built for massive scale and hosted on Amazon Web Services (AWS). New hires come to Klaviyo from a number of disciplines with experience in a variety of languages and tech stacks. Here is our primary tech stack:

• Python / Django
• Typescript / React
• MySQL / Redis / Memcached
• RabbitMQ / Celery / Apache Kafka / Apache Pulsar
• Kubernetes
• AWS

At Klaviyo, we love tackling tough engineering problems and look for employees who are passionate about building, owning, and scaling features end-to-end and breaking through obstacles or technical challenges 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 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
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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. Please visit Klaviyo Rewards to find out more about our Total Rewards package.
Your recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.
Base Pay Range For US Locations:
$188,000 - $282,000 USD
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.
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.
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