Chris Arnold

Senior Vice President of Engineering

Sezzle

Apr 2026 - Current (5 months)

Accountable for the operation, scaling, security, and compliance for the entire platform on which Sezzle operates. I manage multiple teams across infrastructure, security, product, and quality engineering. - AWS Platform and Serving Infrastructure (Kubernetes). - All monitoring, observability, and alerting using the Grafana, Prometheus, Loki, Thanos, Tempo, Alertmanager stack. - Deployment infrastructure - source control, CI/CD pipelines, canaries and feature flagging. - Databases - AWS RDS MySQL and PostgreSQL, Elasticsearch. - Data warehousing with Redshift, replication, transformations with DBT and event streams. - Data engineering and pipelines, Dagster platform deployment, and MLOps with AWS Sagemaker. - ML platform for the Data Scie

Vice President of Engineering

Sezzle

Dec 2022 - Apr 2026 (3 years 5 months)

Director of Engineering

Sezzle

Jun 2021 - Dec 2022 (1 year 7 months)

Responsible for Data Infrastructure, Deployments, and Platform Infrastructure, as well as Internal Operations, Giftcards/Affiliates, Merchant Product, Revenue, Support, and Marketing engineering domains.

Senior Principal Engineer

Leadpages

Nov 2017 - Jun 2021 (3 years 8 months)

My time with Leadpages and the parent company, Avenue 81, Inc. provided a lot of opportunities to develop and launch SAAS products in both new and existing markets. Leadpages - Landing page builder - core product and revenue generator. Web, python microservices on K8s with RabbitMQ for async work. Scaled well, grew MRR/ARR over the years and it ultimately financed its own growth, the launching of new products, and support of existing products. Splittester.com - AB testing tool - Web with python and rabbitmq-based backend. Focused on marketers in particular. Launched but ultimately out-competed by bigger tools and did not find a strong enough product market fit. Center.com - customer event timeline tool - focused on processing complex ev

Senior Manager, Engineering

Leadpages

Sep 2016 - Nov 2017 (1 year 3 months)

- Met rapidly changing business needs in an increasingly competitive market by streamlining the organization into durable teams of engineers accountable for their own QA. - Achieved a shorter time to market, and shorter time to iterate on customer feedback by building out robust CI/CD pipelines, and baking real time collaboration with product and UX into the SDLC. Software changes became releasable in 10-20 minutes, instead of hours, and entire features could be built in real-time collaboration with product and UX in days, instead of weeks. - Authored and implemented a career development ladder to help guide growth for engineers in our company. Mentored test automation engineers through a transition to product engineering. Built growth pl

Senior Manager, DevOps

Leadpages

Aug 2015 - Sep 2016 (1 year 2 months)

- Built a DevOps organization in support of a new SAAS product, and growing portfolio - hiring 20+ people, and promoting 4 to lead teams supporting DevOps/Infrastructure, Test Automation and QA. - Created career development paths for each area of the DevOps org, and mentored team members through promotions or career shifts into coding. - Managed the organization and infrastructure to a target budget, ensuring we had enough people to get features to market quickly, iterate on feedback, and maintain at least 99.95% application availability. - Architected a REST microservice-based ecosystem, gradually pulling pieces of a monolithic, legacy application into separate ultra-fast APIs behind an API gateway.

Team Lead - DevOps

Leadpages

Mar 2015 - Aug 2015 (6 months)

- Lead an infrastructure team in building out a new REST microservice-based architecture, reducing costs in both hosting and maintenance by 30%, and allowing rapid iteration on large application features by engineering teams. - Hire 2 additional Site Reliability Engineers to support rapid growth of the business, and expansion into new market niches with additional product offerings. - Create reproducible deployments in Google Compute Engine using Chef, Ansible, and shell scripting, enuring new environments could be recreated on demand.

Automation Engineer

Leadpages

Oct 2014 - Mar 2015 (6 months)

- Created a robust unit testing framework for a large Python web application. - Advocated for best practices in unit, integration, and end-to-end test automation, bringing the team from writing zero tests, to most engineers testing everything they write. - Back-filled critical path unit tests to catch code coverage up to the fast-pace of development, raising overall Python code coverage from zero to 60%.

Sr. IT/QA Test Analyst

Ecolab

May 2009 - Oct 2014 (5 years 6 months)

- End-to-end test automation with WebDriver; built multiple frameworks across multiple project teams and divisions. - Performance and stress testing using HP LoadRunner and C scripting. - Testing tools management/administration for multiple divisions. - Automated FDA and SOX validation testing. - Provide training on testing and defect tracking to business users in 20+ countries. - Develop and maintain tooling to automate testing and defect life cycle for the business.

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