Mahir Karim Email and Phone Number

- Supported an esports environment for thousands of high schools by providing a Typescript-powered product that organized leagues and scheduled matches for teams to compete in similar to varsity sports- Upgraded scrimmage system to allow teams to enter a queue, powered by Redis, to find opponents instead of needing to schedule them manually with an opposing coach, leading to thousands of practice matches- Designed and developed a new scheduling format that leverages team attendance with a pooled queue system growing ready-team participation from 68% to 95% and simultaneously squashing forfeit/no-show rates- Led team of five engineers and built the Match Assistant feature to power Super Smash Bros. Ultimate character and stage selections and bans for thousands of matches during the spring season utilizing Apollo GraphQL Subscriptions- Optimized performance of endpoints using data loaders, caching, and GraphQL sub-resolvers, leading to a 5x improvement on the average response time of a major endpoint that would be hit thousands of times on match days

- Implemented backend services and APIs using Golang, Postgres, Redis, GraphQL, TypeScript, and Clojure- Developed features that organize and utilize live streaming data from one million daily streams by iterating microservices that support the front end- Incorporated user stream schedules into database of live and past broadcasts- Improved a timeline algorithm to show past, live, and upcoming broadcasts in a TV guide format while combining conflicting data to show the most accurate record to the end user- Collected metadata for live esports broadcasts by utilizing 3rd-party esports APIs and existing streaming data for consumption by thousands of users- Analyzed and improved API performance using Apollo Studio and AWS; reduced an endpoint's p95 response time by 65%- Monitored and updated production code and databases via AWS to eliminate app breaking bugs- Collaborated closely with design, product, and front end teams to determine and fulfill feature requirements while maintaining minimal disruption to existing codebase and coordinated these requirements with backend engineers

- Previously Netsil: an observability and analystics solution for monitoring API and micro-services driven applications- Enhanced backend infrastructure (DevOps) using Kubernetes and Docker and traffic/metrics collection using Python and C++ for Netsil's product- Designed and developed a scaleable backend service written in Golang and Python and utilizing Celery workers to leverage metrics from public clouds such as AWS for a comprehensive monitoring product- Prepared infrastructure and environments for customer demos and installations- Wrote design documents and unit tests for new services

– Acquired by Nutanix, a software company that combines private and public clouds for an enterprise cloud experience

– Supports hundreds of engineering students and faculty with hardware, software, and network problems

– Supported hundreds of residential students and faculty with hardware, software, and network problems

– Worked closely with three members of a full-time front-end team for a next-generation micro-services monitoring startup as it launched its beta and as it approached its general release– Wrote new front-end features, such as alerts creation & display, and user notifications, and implemented UI designs in new and existing features, using React– Implemented back-end services for sending email notifications and configuration of application settings using Node, Express, Elasticsearch, and ZooKeeper– Fixed bugs with existing components and contributed to hardening & smoothening of the core product during each sprint– Used a Flux architecture to implement ’pluggable’ features through a unidirectional data flow

– Worked remotely to update the Android version of this location-based, bluetooth messaging application– Worked on "swipe to show" timestamps in chat windows to match the iOS application– Increased performance and efficiency of the application’s UI for both group and individual chats

– Supported leading global provider of software solutions, data, and analytics in financial markets – Updated server and services monitoring tools to ensure uptime– Edited various documents on NOC procedures such as monitoring and disaster recovery– Identified buy-side behavioral patterns by compiling and analyzing thousands of sales and e-mails

– Supported 800 on-site and remote users in a rigorous, client-focused 24/7 environment– Addressed support tickets daily and troubleshot technical problems; answered support calls daily and aided users one on one– Supported Windows 7 migration, hardware refreshes, memory upgrades, and tracked machines

– Addressed support tickets for employees’ technical problems; installed and supported beta testing

– Aided teachers in various science camps of ten to twenty children; helped set up activities, teach, and take care of children inside the classroom, at exhibits, and in Central Park

– Aided teacher with caring for fifteen to twenty disadvantaged children ages 4-7 in the classroom and during field trips