🚨 Maintained critical site reliability platformsDeveloped and maintained LinkedIn's internal alerting, notification, oncall management, and automated remediation platforms.🧑‍🔬 Helped test high-stakes changesBuilt request replay tooling to evaluate the performance and correctness of LinkedIn’s new metrics platform (analyzing distributed traces and metrics), allowing the team to debug and fix underlying issues before the migration, as well as measure progress to platform parity. Included building a pretty rad + intuitive Grafana dashboard for surfacing project progress and problem areas.

💰 Cut costsIndependently (as a side-project) scoped and executed infrastructure changes saving over $1.2 million per year in hardware costs by reducing the resource use of two large-scale applications, done in the time span of 2 months.🚀 Handled massive scaleSupported backend applications servicing more than 4 million requests per second.💯 Maintained high availabilityMaintained 99.9% availability of all online applications comprising LinkedIn’s targeting, ramping, and experimentation platform (T-REX).🤖 Improved site reliabilityBuilt automation to incrementally deploy experiments while monitoring and reacting to their impact on application health signals, reducing likelihood of incidents from insufficiently validated A/B test treatments.📋 Built alerts & dashboards-as-code pluginCreated (as a side-project) a GitHub Action to allow teams to manage their dashboards and alerts as code, facilitating better alerting practices through code-review as well as providing discoverable examples to be leveraged by others, improving oncall quality-of-life.🔍 Prevented widespread outagesEvaluated production readiness of a service slated to be used by almost our entire fleet. Developed and executed load tests to proactively identify severe scale limitations, preventing the issue from occurring in production.

💰 Lowered user-acquisition costsCreated a browser registration funnel for our previously mobile-only application, reducing cost of user acquisition by 50% and paving the way for future investment into a cross-platform target for application development.🔧 Automated the hard stuffCreated a Python tool to automate safe deployments of our legacy C# applications (including our main monolith), eliminating all deployment-related site-reliability issues. Included writing thorough documentation and training 30+ developers on tools use, which allowed engineers to confidently and safely deploy new code without fear of user impact.🤝🏻 Built appreciation cultureBuilt an internal Slack application for co-workers to show each other appreciation through coin emojis, dubbed ‘Earnin Coin’, which went viral internally. Regularly reached 100s of weekly transactions. Included a real economy, a weekly leaderboard to celebrate high coin earners, and was consistently touted as making employees feel better about giving and receiving help.

📲 Built automated job-dispatching applicationWorked as an independent consultant, building an SMS-based job-dispatching application for an industrial and oil-field safety services company using Node.js and Twilio. allowed the company to automate notifying (and provisioning) qualified employees for available jobs.

💬 Created secure chat applicationWorked as a fullstack developer to create a chat application for health-care professionals, facilitating the secure sharing of patient information between clinics and physicians within Canada. Built using Angular and Node.js, leveraging WebSockets for real-time communication and notifications.