At Webflow, our mission is to bring development superpowers to everyone. Webflow is a Website Experience Platform (WXP) that empowers modern marketing teams to visually build, manage, and optimize stunning websites. With AI-driven personalization baked in, Webflow enables teams to significantly boost conversion rates, translating directly into measurable business growth. From independent designers and creative agencies to Fortune 500 companies, millions worldwide use Webflow to be more nimble, creative, and collaborative.

 

We’re looking for a Senior Software Engineer to help develop and scale Webflow Optimize products, our AI-powered website optimization and personalization engine. This role is essential in designing high-performance systems that dynamically optimize user experiences. You will work with large-scale data processing, distributed computing to improve website conversion rates and personalization at scale. We’re a fast-moving, data-driven team with deep experience in personalization, ML infrastructure, and large-scale analytics. 

 

About the role:

• Location: Remote-first (United States or BC & ON, Canada)
• Full-time
• Permanent 
• Exempt
• Reporting to the Senior Engineer Manager
• The cash compensation for this role is tailored to align with the cost of labor in different geographic markets. We've structured the base pay ranges for this role into zones for our geographic markets, and the specific base pay within the range will be determined by the candidate’s geographic location, job-related experience, knowledge, qualifications, and skills.
  • Zone A: $158,000 - $218,000
  • Zone B: $149,000 - $205,000
  • Zone C: $139,000 - $192,000
  • CAD 180,000 -CAD 248,000
• United States(all figures cited below are in USD and pertain to workers in the United States)
• Canada (figures cited below are in CAD and pertain to workers in ON & BC, Canada)

 

This role is also eligible to participate in Webflow's company-wide bonus program. Target amounts are a percentage of base salary and vary by career level. Payouts are based on company performance against established financial and operational goals. 

 

Please visit our Careers page for more information on which locations are included in each of our geographic pay zones. However, please confirm the zone for your specific location with your recruiter.

 

As a Senior Backend Engineer, you’ll: 

• Architect, design, and implement scalable multi-tenant backend services and APIs.
• Work on technologies such as Java, MongoDB, Druid, Airflow, Amazon Web Services EC2, S3, Lambdas, RDS, and more.
• Design and implement data processing pipelines that includes ingestion, transformation, storage, and query. 
• Work with Druid and other data stores to efficiently integrate and query large-scale event data.
• Ensure system scalability and reliability by optimizing distributed architectures, caching strategies, and event-driven systems for low-latency performance.
• Lead projects that directly contribute to team and engineering organization's deliverables.
• Produce and elevate the quality of maintainable, tested, performant, and scalable code.
• Build and maintain unit and integration tests.
• Author, collaborate on, and evaluate design documents.
• Influence technical designs and team-level prioritization as well as participate in technical solutions.
• Collaborate with software engineers, product managers, and designers in an autonomous, supportive team environment.
• Mentor other engineers in technical skills, best practices, and quality.
• Participate in engineering citizenship activities such as co-authoring engineering blogs, strengthening and improving our hiring processes, and leading internal hackathon teams.

In addition to the responsibilities outlined above, at Webflow we will support you in identifying where your interests and development opportunities lie and we'll help you incorporate them into your role.

 

About you:

You’ll thrive in this role if you:

• Have 5+ years developing and deploying complex web applications, with a proven track record of shipping performant quality code.
• Proficiency in Java, Python, or another high performance back-end language.
• Experience working with high-performance real-time analytics, event processing, and large-scale distributed systems. 
• Strong data engineering skills, including experience with relational and non-relational databases.  
• Knowledge of REST APIs and event-driven architectures.
• Can debug production issues across services a