Senior Integrations 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.

About the Role

At Klaviyo, our mission is to help businesses grow by delivering personalized experiences powered by unique data insights. The ARIA team plays a crucial role in facilitating this mission by ensuring seamless integration of various SaaS systems, databases, and cloud infrastructures, enabling our clients to derive actionable insights and drive their business objectives.

The Senior Integrations Engineer will be at the forefront of this mission, tasked with developing and maintaining complex integrations that support the scalability and efficiency of our platforms. The role involves architecting robust solutions that integrate cloud services, databases, and third-party applications using tools like AWS, GitHub, and Python. You will be pivotal in implementing and optimizing automation tools such as Workato or Mulesoft, ensuring our systems operate with high reliability and minimal manual intervention.

As a Senior Integrations Engineer, you will own the end-to-end integration processes and partner cross-functionally with Product, Engineering, and Customer Success teams. Your collaboration with stakeholders will ensure the delivery of high-quality solutions that enhance customer satisfaction and operational efficiency.

This is a rare and exciting opportunity to shape the technology landscape at Klaviyo. You will work on cutting-edge integrations that have a direct impact on business growth and customer engagement. Join us to be part of a dynamic team that values innovation, collaboration, and technical excellence.

How You’ll Make a Difference

• Lead the design and implementation of integrations across various SaaS platforms, ensuring they are robust, scalable, and well-documented, in alignment with Klaviyo’s growth strategy.


• Develop and maintain cloud infrastructure integrations using AWS to ensure seamless data flow and process automation between Klaviyo and external SaaS systems, enhancing operational efficiency.


• Utilize advanced features of integration tools such as Workato or Mulesoft to automate repetitive tasks, increasing productivity and allowing our teams to focus on strategic initiatives.


• Collaborate with Product and Engineering teams to identify integration needs and develop tailored solutions that enhance our product capabilities and customer experiences.


• Ensure all integrations are secure and compliant with industry standards, protecting customer data and maintaining trust in Klaviyo's platforms.


• Monitor and troubleshoot integration processes to quickly resolve issues, ensuring high system uptime and reliability, which is critical to customer satisfaction.


• Build and maintain technical documentation for integrations, providing clear guidelines and insights to internal stakeholders and customers.


• Drive continuous improvement in integration processes by staying updated on industry trends and refining our approaches to meet evolving business needs.


• Partner with Customer Success teams to gather feedback on integration performance and incorporate enhancements that align with customer requirements and perceptions.


• Mentor junior engineers and share expertise on integration best practices, fostering a culture of learning and development within the team.

Who You Are

• You possess at least 5 years of experience in designing and implementing complex integrations using AWS, GitHub, and Python, demonstrating strong technical proficiency.


• You have a deep understanding of automation tools such as Workato or Mulesoft, with experience in creating efficient workflows that improve system operations.


• You are an excellent problem solver with a keen attention to detail, able to troubleshoot integration issues quickly and effectively.


• You have a collaborative mindset, with proven experience working cross-functionally with diverse teams to achieve shared goals.


• You are customer-focused and committed to delivering high-quality solutions that exceed expectations and drive business success.


• You have strong communication skills, able to convey complex technical concepts to non-technical stakeholders in an understandable manner.


• You are proactive and take ownership of your work, always seeking ways to improve processes and products.


• You are adaptable and open to learning, eager to stay ahead of industry trends and continuously enhance your skills.

Nice to Haves

• Experience with automating solutions in tools like Salesforce, bolstering CRM capabilities and integrations.


• Familiarity with event-driven architectures and experience with event streams, optimizing real-time data processing.


• Previous experience in a SaaS environment, gaining insights into the unique challenges and opportunities within the industry.


• Understanding of RESTful APIs and experience in creating and consuming them for seamless application connectivity.


• Knowledge of database management and data warehousing, enhancing your ability to design comprehensive integration solutions.

Why This Role Matters

The Senior Integrations Engineer role is pivotal to Klaviyo's strategic growth as it addresses the increasing demand for seamless integration of diverse technology platforms. Successfully integrating various SaaS applications and automating key processes will enable Klaviyo to offer unparalleled data-driven insights and efficiencies to our clients, fostering greater customer loyalty and engagement.

By driving innovation in integrations and automation, this role directly impacts our ability to scale and adapt to the fast-evolving market needs. It empowers us to offer robust, agile, and secure solutions that our customers can trust, ultimately contributing to Klaviyo’s reputation as a leader in personalized marketing solutions. The right candidate will have the opportunity to be at the forefront of transformative technology initiatives, shaping the future direction of our platform, and adding significant value to both the company and our clientele.

***This role is hybrid in our Boston, MA office. The in-office expectation is three (3) times per week***