Jonathan Harper Email & Phone Number

San Francisco Bay Area

Marketplace team — building Awards & Reddit’s Collectible Avatars

San Francisco Bay Area

Founding engineer for the Optopod (Optimization team) - a team designed to iterate quickly, experiment frequently, and ideate on features that can move metrics. Specifically focusing on ways to engage international audiences, including but not limited to developing enticing subscription and merchandising offerings. Worked very closely as a team to come up with the next big thing.‣ Ran CMBs 2021 Summer Internship program. Hired 3 engineers (2 iOS, 1 Android) with a team of 10 engineers. Formulated intern projects, led their induction, assigned them partners, planned final presentations.‣ Pitched and managed "Store V2": a multi-cycle project which re-architects the backend store app. Allows CX agents to audit the entire transaction history of the user, grant individual perks (in-app items), and view current balance; made subscriptions and perks platform-agnostic to allow greater flexibility in subscription creation; streamlined and extensively documented process of subscription addition and testing which has reduced time to insert and QA subscriptions from a minimum of 1-2 hours per subscription to 2-5 minutes. Worked with 3 other engineers.‣ Often take on bug fixes which would impede an experiment before it's run. For instance, resolved a long-standing (6+ month) bug which affected ~5,000 users per day in their ability to perform actions on their bagels in the "Likes You" section -- a company P0 task hypothesized to be negatively affecting revenue from subscribers and trust from our users.

San Francisco Bay Area

Primary Backend resource for the Revenue team. Here I developed new features to drive Revenue, ideated with team stakeholders to formulate effective road plans/milestones, and also directly assisted in user bug reports related to subscriptions (and other paid items).‣ Developing multiple perks/benefits offered as part of the subscription model (notably Boost-per-month and free-likes-per-day) to improve user conversion. ‣ Responsible for implementation of sales + price experiments which have generated millions in revenue.

San Francisco Bay Area

Worked as part of the Backend Tools team. Here we created user-facing features, addressed QOL improvements + bugs, and created developer tools. Notable projects:‣ Drove implementation of bringing trial subscriptions natively onto the app. No longer relying on external services to track subscriptions and giving the team more granular control in altering subscription offerings.‣ Technical lead for implementation of the feature "Karma Beans": awards users in-app currency for positive interactions. Encompasses rewards that replenish daily and those which are one-off. Added caching layer to improve frequent reads, introduced new endpoint, and test suite.

London, United Kingdom

Smart trading platform for traders to identify investment opportunities and socialize with other traders in their network. Focus on moving from monolithic to microservice-based architecture, creating APIs from scratch, and automation of laborious manual tasks.‣ Designed and developed RESTful APIs using Python’s Flask-RESTful framework. Containerized using Docker, deployed containers on DigitalOcean.‣ Improved efficiency by scheduling periodic recurring tasks previously done manually daily: automating the daily task of aggregating + analyzing stock trends. Used RabbitMQ and Celery for the producer/consumer setup.‣ Spearheaded the effort to automate unit testing as a standard codebase practice. Implemented extensive automated testing suite using pytest.