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.
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 coded in Python 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.
Klaviyo is growing fast and we have openings across many of our engineering teams. Learn more about our engineering culture at https://klaviyo.tech
Team Overview:
The Cloud-hosted eCommerce Integration team is responsible for building and maintaining Klaviyo's integrations to a multitude of 3rd party vendors. These vendors can be grouped across a number of verticals ranging from e-commerce to help desk to payment processing. 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 different pipelines to process data flowing to and from the vendor at scale.
Responsibilities:
You will have an opportunity to make a major impact on the direction and priorities of the team.
As an engineer on this team, you will be responsible for building and managing Klaviyo's integration settings pages, API services that communicate with 3rd-party vendor APIs, data transformation of data flowing between Klaviyo and the 3rd-party vendor, as well as wiring up the API Services into a number of data pipelines. These pipelines range from webhook processing to periodic data syncs to syncing data back to the vendor. Additional responsibilities include providing quality PR reviews for our code-owned areas of the application, participating in architectural design decisions, collaborating with product owners and providing technical expertise on upcoming Product Specifications, and acting in a project lead capacity to make sure that work is well-defined, estimated, and planned accordingly.
Team Tech Stack:

• Python
• Django REST Framework, Django
• React, React Query
• MySQL
• Redis
• Memcached
• RabbitMQ / Celery

Required Skills:

• 7 years of experience in a software engineering discipline
• Significant experience with full stack application development
• Experience working with both monolithic and microservices architectures
• Experience with CI/CD pipelines
• Experience debugging performance issues and improving application performance

Preferred Skills:

• Experience working with Service Oriented Architecture (preferably in Python)
• Experience working with RESTful applications/APIs
• Experience with mentoring junior developers
• Experience with highly available, scaling systems.

The pay range for this role is listed below. Sales roles are also eligible for variable compensation and hourly non-exempt roles are eligible for overtime in accordance with applicable law. This role is eligible for benefits, including: medical, dental and vision coverage, health savings accounts, flexible spending accounts, 401(k), flexible paid time off and company-paid holidays and a culture of learning that includes a learning allowance and access to a professional coaching service for all employees.
Base Pay Range For US Locations:
$156,800-$235,200 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.
IMPORTANT NOTICE: Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls.
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