Brian Ocasio Email & Phone Number

Working as a Full Stack Engineer with ReactJS, React Native, Java, Ruby on Rails, and NestJS.Developing ReactJS applications for myUSCIS accounts teamDeveloped new onboarding processes for legal teams to invite paralegals and representatives to organizations.Rewriting secure inbox ReactJS microfrontend, updating the application to utilize modern ReactJS concepts such as RTKQuery, functional components, and Context.Extending Ruby on Rails REST API's, helped develop new features to cache and query case data.Migrating existing monolith Ruby on Rails accounts application to ReactJS.Mentoring junior engineers on architecture and common practicesDesigned and developed Spring Boot services for E-Verify in transitional period.Developed E-Verify React microfrontend applications.Mentored junior engineers on best practices.Leading development of Qbon App, In charge of a modular monolith architecture.Designing and developing REST API's with NestJS and SpringBoot on AWS.Designing and developing merchant portal application with NextJS.Designed and developed payment processing module to process subscription payments utilizing Stripe.Designing and developing iOS and Android mobile applications with React Native Expo.Writing bitbucket pipeline jobs to build and deploy docker images to our ECS repository.Managing AWS App Runner infrastructure for web services and managing monitoring tools.Developed client and server side geofencing feature that can verify whether users are within 50 to 1000 feet from a Qbon merchant location.Developed device generation feature and process, allowing Qbon platform to generate unique device ID's and URL's that can be manufactured on acrylic plates and sold.Led development of CallPulse Pro, CRM platform built to process lists of leads generated from Facebook Ads. Platform would call each lead and forward any answers to live agents. Built in a severless event driven architecture with Lambda, SQS, SNS, S3, and Twilio.

Mclean, Virginia, Us

Led the Accounts Team, consisting of five frontend and backend engineers and two QA engineers, in the ongoing development of the E-Verify system, built with Spring Boot microservices and ReactJS micro-frontends.Led team and contributed to the extension of accounts onboarding processes, verifying user data across other government systems.Led backend development during migration from an Oracle Databases to PostgreSQL databases. Updating data models, carrying out live data migrations with SQL scripts, and regression testing systems post migrations.Developed ATNON process for daily termination of more than a hundred non-performing E-Verify accounts.Developed and designed ATNON email process, notifying thousands of users of inactivity within accounts that could result in termination.Worked closely with other E-Verify development teams, product owners, senior management, and stakeholders to plan and align work for upcoming quarters.Advised USCIS, the product owner, on optimal approaches for implementing new features and changes, particularly those related to ATNON and the extended onboarding processes.Managed security configurations for Kafka connections and other internal services attempting to access accounts applications within internal infrastructure.Worked as release manager for all accounts services.Managed creation and deployment of feature toggles for accounts services.Managed creation of API contract definitions for accounts API's.Implemented Kafka into accounts services to consume events generated from service belonging to other teams.Worked with DevOps teams to negotiate changes to accounts pipelines, improving deployment times.

Mclean, Virginia, Us

Served as the primary Senior Full Stack Engineer on the accounts team. During my time at E-Verify we focused primarily on improving the onboarding process, removal of non performing user accounts, and migration of previously Ruby microservices to Java Spring Boot.Aided the accounts team in an effort to migrate outdated accounts models to new models that better incapsulate platform data, writing migration scripts as well as optimizing many stored SQL queries to remove useless operations in Spring Boot microservices.Developed new REST API's in SpringBoot and occasionally worked with Ruby on Rails.Collaborated with product owners and project managers to identify ways to optimize currently existing applications.Regularly worked with accounts ReactJS micro-frontend applications adding new featuresRegularly cross collaborated with core team, authentication services, to build out new features requiring user data.Designed and developed feature to bulk upload company data during E-Verify onboarding process utilzing ReactJS and Spring Boot, helping to cut the onboarding process for companies with multiple locations significantly.Mentored more junior engineers as much as possible and when possible.Worked on call rotation troubleshooting problems on service in ECS using Splunk and new relic.

Orlando, Florida, Us

Served as the teams Full Stack Engineer, working on developing and designing both frontend and backend features.Worked within both a microservice architecture and monolith architecture for two distinct product lines, designing, extending, and developing cloud based services with Spring Boot in Java, Kotlin, and Scala.Extended frontend features for ecomm application in Angular, statically hosting the web application on S3.Was part of a two person frontend ReactJS team, carrying out a massive effort to migrate our Monolith Spring application from plain JavaScript and BackboneJS to TypeScript ReactJS.Designed a makeshift API Gateway in Spring to reroute incoming requests to newly written microservices in an effort to break apart our monolith application.Wrote terraform scripts running on bitbucket pipelines to manage resources on AWS.Developed Airflow Python tasks to extract, transform, and load e-receipt data into S3 and then to SnowflakeDB for a big data reporting feature.Developed serverless python functions that mocked a third party service for internal testing using Terraform, bitbucket pipelines, AWS Lambdas, and AWS API Gateway.Designed and developed of a custom statistics reporting application in Python to generate e-receipt statistics for customers.Was the primary developer of an inhouse SMTP server that received and parsed PDF receipts from POS systems and generated e-receipt equivalents using a NodeJS JavaScript server and a Java and Scala Spring Boot server.Participated in on call rotation to troubleshoot production issues.Participated in design sessions with team providing input for new feature designs and collaborating with other team members to design new features.Conducted interviews for frontend engineering candidates.

Lake Mary, Florida, Us

Worked as a backend engineer developing Spring Boot cloud based microservices on AWS.Developed new backend REST API's for the TE2 Experience Engine with Java and Kotlin Spring Boot microservices, PostgreSQL, and Couchbase NoSQL.Wrote unit and integration tests to verify code functionality using Mockito. Regularly configured microservices environment variables using Spring Cloud Config.Configured deploy jobs for services in Groovy for Jenkins pipelines.Worked with Kafka to generate and consume microservice events when changes occurred with data models.Helped manage deployment of microservices to lower and higher environments.Worked with Kubernetes on EC2 to monitor microservice behavior.Helped troubleshoot and fix issues in development and production environments.Worked on call rotation slot once a month providing availability to troubleshoot and fix production issues.

Rockaway, Nj, Us

Helped implement features for DES, a web application that runs on the local network of police department precincts storing photo evidence for law enforcement, utilizing Spring Framework and JSF.Lead migration effort to upgrade IceFaces from version 1.8 to version 3.Implemented feature to send data over a network from one precinct to another.Made UI Component upgrades using JSF.Participated in daily stand ups, design meetings, and other scrum related meetings.

Developed Insidely a web based application that served parsed insider trading data from the SEC website.Designed and developed a web crawler running on AWS Lamba as a scheduled job that parsed XML data from the SEC website in Python running through. Parsed data was stored on MySQL databases and served via REST API's.Designed and developed REST API's utilizing AWS API Gateway, AWS Lambda Functions, and Python Flask to serve parsed insider trading data.Developed authentication services on top of AWS Cognito.Developed Angular web application for frontend, interfacing with Cognito for user authentication.

Celebration, Fl, Us

Advise and guide Real Estate Investors in finding properties that need rehabilitation and will provide a capital in return. Advise and guide Real Estate Investors in finding properties that can be rented and create a positive cash flow in return.Guide home buyers in the home purchasing process, including finding Home Buyers the lenders and assistance they might need in order to purchase.Advise and guide home sellers in the selling process. (Includes marketing, valuing, screening buyers, creating contracts and documents, and ETC.)

Bachelor'S Degree, Computer Science

Computer Science Articulate (Ucf), Computer Science

Education record