Open to opportunities

John Flunder

@johnflunder

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Experienced Staff Software Engineer specializing in scalable backend solutions.

United States

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What I'm looking for

I seek a role that fosters innovation and collaboration, with opportunities for mentorship and technical leadership.

I am a Staff Software Engineer with a strong background in developing scalable backend solutions and leading cross-functional teams. At Shopify, I spearheaded the development of a global BNPL platform, focusing on backend architecture and ensuring performance under peak traffic conditions. My work involved designing modular microservices and optimizing user interfaces, which significantly improved load times and user experience.

Previously, I interned at Amazon, where I contributed to real-time robot task allocation systems and developed event-driven microservices. My experience spans various technologies, including Java, Go, Python, and modern frontend frameworks like React. I am passionate about mentoring engineers and aligning technical systems with user experience goals, ensuring that our solutions are not only functional but also user-friendly.

Experience

Work history, roles, and key accomplishments

Current

Staff Software Engineer

Current

Shopify

Feb 2019 - Present (6 years 5 months)

Led the end-to-end development of Shopify’s global BNPL platform, defining backend architecture and technical direction to support rapid growth, scaling infrastructure to handle peak shopping traffic, and collaborating with product and legal teams to launch merchant-facing options across multiple regions. Designed and built modular microservices using Ruby, Node.js and Go to power BNPL features su

Ruby Node Go)React TypeScript PostgreSQL Redis Kubernetes AWS GCP Docker Terraform Helm GitHub Actions OpenTelemetry Sentry Datadog)Grafana RSpec Pytest Cypress

SDE Intern & I & II

Amazon

May 2012 - Present (13 years 2 months)

Designed and implemented backend services in Java and Go to manage real-time robot task allocation, inventory movement, and fulfillment workflows across Amazon warehouses. Created scalable REST APIs and monitoring dashboards for real-time robot fleet status using React, Flask, and Grafana, improving incident triage time by 40%.

Java Go)React Flask Grafana Kafka AWS Kinesis Python WebGL REST APIs Microservices A B Testing

Education

Degrees, certifications, and relevant coursework

The University of Texas

Bachelor of Computer Science, Computer Science

Studied Computer Science at The University of Texas from 2009 to 2013. Gained foundational knowledge in various programming languages and software development principles.