Zach Ahn Email & Phone Number

San Francisco, California, US

New York, New York, US

• Managed a team of engineers in a cross-functional team, facilitating growth by assigning responsibilities proportional to experience and providing assistance as needed.
• Implemented agile methodologies to streamline development process, improve internal communication, and empower engineers to make informed decisions on their projects. Incorporated feedback to drive continuous process.
• Collaborated with senior management, product, design, and engineering to ensure development efforts aligned with business objectives. Provided regular status updates on ongoing projects.
• Raised the bar for engineering excellence by introducing gradual type-checking, conducting thorough code reviews, and evaluating architecture proposals. Leveraged GraphQL Apollo Federation and Kafka to build scalable.
• Oversaw and guided the development of the billing system, which utilized a graph data structure to keep an accurate log of charges, payments, credits, refunds, and balance transfers.

New York, New York, US

• Contributed to the development of various microservices, leveraging extensive experience to support Odeko's critical and complicated product areas.
• Designed a self-serve refunds feature, gathering requirements, and considering edge cases to prevent over-refunding scenarios and to enhance operational efficiency of customer support.
• Overhauled the weekly bank deposit workflow to accommodate daily deposits, requiring meticulous attention to detail and layers of automated testing to ensure transactions were paid out exactly once.
• Managed a team of two interns. Ensured successful execution by defining project scope, providing guidance, and facilitating communication with stakeholders.

New York, NY, US

• Leveraged deep expertise in Ruby on Rails to build a diverse array of projects within a large-scale, high-traffic Rails application, earning recognition as a go-to resource for colleagues at all levels who sought.
• Demonstrated a track record of delivering high-quality solutions and earned trust to work on high-impact initiatives which contributed significantly to the company's growth and success. Ensured high-uptime, and.
• Integrated with key partners such as Wayfair and Facebook Marketplace, developing robust processing systems that became integral to Handy's business strategy.
• Championed developer experience by leading projects aimed at enhancing internal tooling and processes. Implemented a solution to improve common defects caused by feature flag system. Upgraded to major version of Rails.

• Led the architectural design and development of a greenfield Rails application, establishing a foundation prioritizing maintainability and longevity to accommodate the transient nature of the volunteering team.
• Reviewed contributions, investigated blockages, assigned tasks, and authored application code. Designed development scripts to standardize development workflows.

Ann Arbor, Michigan, US

• I worked on various tasks to improve the developers', admins', and users' experience through bettering performance through tasks such as:
• writing a asset build tool for improving cacheability and performance
• optimizing the build process, preventing unmodified files from recompilation
• implementing various user-facing featuresThe primary technologies we used were CoffeeScript, Node.js and MongoDB.

• In addition to fixing and various feature additions to their existing software stack, I worked on various long-term projects such as:
• writing a self-assessment and report building application using Ruby on Rails
• migrating a host of self-hosted applications from a dedicated server onto various platforms: email to Google Apps, DNS to Gandi, web application hosting to Linode
• creating a responsive WordPress theme with a designer, using PHP and Twitter Bootstrap

Ann Arbor, Michigan, US

Performed content updates and wrote software to ease and optimize data collection

Ann Arbor, Michigan, US

Built core flows for students to upload and showcase their projects.

Developed a Ruby on Rails application and an Android application to connect and work with the Twilio REST API.