Senior Software Engineer- Integrations, Core

Klaviyo integrations allow our customers to pull in unlimited real-time and historical data from just about anything in their marketing stack. The Integrations Platform team focuses on powering data exchange between Klaviyo and dozens of platforms at a huge scale. We design and build reliable, scalable, and fault-tolerant pipelines and services that process billions of integration data points every day. As a Platform team, we are also responsible for enabling other Integrations teams to build customer-facing software more effectively.

As a senior engineer on the Integrations Platform team, you’ll be responsible for the design, implementation, and scaling of highly visible mission critical data processing systems. You will be constantly challenged to improve these systems from every angle, such as latency reduction, resource utilization efficiency, failure recovery, tooling, monitoring, and much more. In addition, you will be working on simplifying the use of these systems so that other teams can use them as services.

At Klaviyo, 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.

• Python, Django
• RabbitMQ, Celery, Apache Pulsar
• MySQL, Redis, Memcached
• Graphite, statsd, Grafana
• AWS, Terraform, Docker, Jenkins, Travis and other modern DevOps tools

How you will make a difference:

• Wholly own features that tens thousands of our customers rely on daily to reach 4B+ of consumers to drive their business forward
• Work on crafting our highly scalable inbound and outbound data pipelines that process billions of data points every day
• Work with other teams and enable engineers to build customer-facing software more effectively
• Own a significant portion of our product area, identify and advocate for necessary improvements, help reduce long-term operational overhead
• Be responsible for end-to-end implementation of projects of varying complexity, be effective at collaborating with others and leading small groups of engineers
• Contribute to the company as a subject matter expert in multiple areas, constantly pushing yourself to be a better engineer and to level up all of your peers within your team and within Klaviyo

Who you are:

• Passionate about building software effectively and for the long-term. Have experience building products that matter. Familiar with design patterns for implementing highly-scalable multi-tenant systems.
• Like working on small, autonomous agile teams. Enjoy shipping code early and often in an agile fashion, pairing with product management, business stakeholders, and other engineers to craft better software.
• Motivated by having ownership, excited about taking the initiative to solve tasks in collaboration with others.
• Love digging into performance, scalability, and reliability issues to drive breakthrough solutions. You recognize all problems can be solved. 
• Have experience working with distributed systems, messaging systems, and process control systems. Have solid understanding of relational databases and in-memory data stores.
• Have experience leading projects and groups of engineers, proven success creating direction and specifications for others