Senior Software Engineer - Email Campaign Pipeline
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.
Senior Software Engineer, Email Campaign Pipeline
The Email Campaign Pipeline team has direct technical responsibility for Klaviyo’s most-used engagement channel. It is responsible for designing, building and operating highly-scalable, highly-available distributed systems to process ever-increasing email campaign traffic. Our systems are used by hundreds of thousands Klaviyo customers to schedule/process tens of thousands campaigns and deliver over 500M emails every day.
Besides the daily high volume traffic, the more challenging task is to deal with super spiky volume at online sale seasons. During the 2021 Black Friday and Cyber Monday, over 7.5B emails got processed and delivered through our system without any developer intervention. We’re proud of these achievements and passionate about continually scaling and evolving our systems to support and help drive Klaviyo’s rapid growth (2x per year the past several years) by using modern technologies and patterns.
Going beyond email, this team is aiming to build a highly generic and extensible campaign platform to empower the emerging SMS and other new message channels in future by leveraging our years of experience/expertise gained from the email channel. If you like to take on new challenges working on large-scale, complex systems, come join us.
How You Will Make a Difference
- In this role, you will own and build features/services that hundreds of thousands of Klaviyo customers rely on daily to drive their business forward.
- Work on crafting our highly-scalable, highly-available email campaign pipeline that processes and delivers hundreds of millions of email daily growing to billions scale.
- Collaborate radically with teams and stakeholders across Klaviyo on designs, implementations, and engineering practices.
- Learn new technologies, bring them to the team and apply them to evolve our systems to the next level.
- Help us improve our experimentation and development processes, and mentor other engineers on the team.
- Participate in the technical interview process to help maintain a high bar for our growing teams
- Contribute to the company as a subject matter expert, 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
- Have 4-6+ years of experience in a software engineering discipline and have architected, built and delivered at least one complex system.
- Experience on large-scale system architecture, technologies and patterns. Have a good understanding of their pros/cons and use scenarios, able to apply them to system design by making appropriate tradeoffs to meet the business needs best.
- Love digging into performance and scalability issues to drive breakthrough solutions-- whether it's a performance degradation or too many clicks in a workflow, a database query timing out, or a queue that just won’t drain. You recognize all problems can be solved.
- Passionate about growing and improving a product daily using a data driven mindset, familiar with system monitoring and alerting techniques.
- Proven experience with being a coach and a mentor for team members and helping them grow.
- Like working on small, high-performing autonomous agile teams. At Klaviyo, you will have ownership of features, but you'll collaborate radically with everyone to make sure we produce the right solution.
- Boston (preferred) or Remote.
Technologies We Use (not exhaustive)
- Python, Django, React, RabbitMQ, Celery, MySQL, Redis, Memcached, Apache Zookeeper.
- Amazon Web Services (EC2, RDS, Aurora, etc.), Terraform, Jenkins
Get to Know Klaviyo
Klaviyo is a world-leading marketing automation platform dedicated to accelerating revenue and customer connection for online businesses. Klaviyo makes it easy to store, access, analyze and use transactional and behavioral data to power highly-targeted customer and prospect communications. The company's hybrid customer-data and marketing-platform model allows companies to grow by fostering direct relationships with customers, without giving up their valuable data to popular big-tech ad platforms. Over 265,000 innovative companies like Unilever, Custom Ink, Living Proof and Huckberry sell more with Klaviyo. Learn more at www.klaviyo.com.
Klaviyo is committed to diversity and to a policy of equal employment opportunity and non-discrimination. We do not discriminate on the basis of race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other characteristic protected by applicable law.