• Built internal tool to query infrastructure configuration differences across data centers and then auto synchronize configs across regions

• Designed Swagger api and models for a variety of internal APIs to save teams time during development when querying the infra API

∙ Built infrastructure event dashboard using FaaS, Kafka, Elasticsearch, and Grafana to track all infrastructure changes within the US global payments

• Primary contact for the building out and sustaining the Treasury subdomain in US that liaisons the movement of funds from Tiktok to external financial institutions

• Configure and build out key infrastructure for the new TikTok US payments systems in infra services such as relational database, NoSql db, message brokers, Redis cache, and others

• Analyze Grafana metrics and internal logs of end to end payments system to troubleshoot critical incidents

• Participate in on-call rotation as first point of contact for major fund loss incidents in the US

• Configure bosun expression of alarms to more accurately monitor payments system

• Run QA regression tests to ensure new service deployments are ready for production environment

• Deploy and monitor new service upgrades using Jenkins internal pipeline

• Oversee deployments of up to 20 services in one night for time sensitive production pushes

• Built ad-hoc Golang script to change notification groups of critical alarms

• Write and participate in post-mortems after critical incidents

• Present to 100+ person internal tech talk on using Swagger and a infrastructure diff tool

• Architected a Node.js backend and implemented an Express middleware chaining control flow to route HTTP requests from the user

• Built NoSQL database to store new users and authenticate existing users using a schema that provides flexibility for future horizontal scalability

• Rendered charts using Zing Chart to show essential Kubernetes cluster metrics in a dynamic and customizable manner

• Bundled assets and integrated loaders for transpiling using webpack for quicker front end rendering of app and integrated hot module replacement for a more efficient developer build

• Applied Sass CSS nested variables to create a cleaner stylesheet and easily reusable variables

• Used Material UI to leverage production grade components that sped up development

• Managed state across all React components using Redux to keep a single source of truth for components to access and re-render accordingly

• Implemented React Router to handle client-side routing that reduced server calls and latency

• Designed frontend React framework to utilize its reusable stateful components that allow re-rendering after relevant state updates

• Deployed Prometheus inside a Kubernetes cluster to pull metrics with PromQL to measure health of pods and other statistics like CPU usage, saturation, latency, memory utilization

• Utilized Kubectl to create and navigate new Kubernetes clusters, nodes, and pods

• Containerized Kubric application using Docker to ensure compatibility across different machines and ensure continuous integration and continuous deployment

• Open source product developed under tech accelerator OS labs | opensourcelabs.io

• Secured user login information using bcrypt hashing algorithm to encrypt user passwords before storing them in the database

• Set up and customized NoSQL database using MongoDB to store related data in the same documents to quickly query user information

• Utilized SASS variables and CSS grid and flex box architecture to create a clean user interface

• Added React Router to a single page application routing to provide quick load times, fast request rates, and a smooth user experience

• Implemented Redux architecture to centralize data storage, eliminate prop drilling, and prevent data mutability

• Created server with Node.js to accommodate an event driven, non-blocking RESTful API calls infrastructure with robust error handling

• Built SQL database hosted on ElephantSQL to create relational tables of users account information and defined constraints to keep the database ACID compliant

• Implemented Google Oauth 2.0 SSL tokenization to protect user identity and credentials

• Added react hooks to front end to provide component logic reusability and a cleaner codebase