Louie Padilla

Senior Full-Stack Software Engineer

Building scalable, event-driven systems with TypeScript, React, and AWS

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About Me

Senior Full-Stack Software Engineer with 6+ years building scalable, event-driven systems — TypeScript, React, Angular, Node.js, GraphQL, and AWS. Proven track record delivering platform-level infrastructure, distributed backend services, and workflow automation for tens of thousands of users.

Experience

Senior Full-Stack Engineer @ Republic Services

Mar 2023 – Present

  • Drove $50K+ in revenue within the first week of launch — designed and implemented a GIS-driven customer matching service in TypeScript and AWS Lambda, automating data reconciliation and eliminating manual workflows.
  • Architected an event-driven payroll migration using AWS SQS, Lambda, and DynamoDB to transition 55,000+ Kronos time punches to Workday — leveraging DynamoDB feature flags for a safe, phased rollout to 33,000 hourly employees across the enterprise.
  • Engineered an event-driven notification pipeline via AWS SQS and Lambda routing messages to SendGrid for email delivery or a print queue, enabling reliable decoupled communication at scale across multiple consumer systems.
  • Built a disaster recovery application using Azure, Angular, and Node.js, ensuring 5,000+ users could access historical data and maintain operations during AWS regional outages — eliminating a single point of failure for critical business continuity.
  • Developed a driver time-tracking feature calculating clock-in/out durations and geofence boundary crossings, improving payroll accuracy across field operations.
  • Pioneered two GitHub Copilot Extensions adopted by engineering teams: a Rally-integrated agent that retrieves story details and guides sprint planning, and a Confluence extension that parses spike documentation and generates TL;DR summaries — accelerating developer ramp-up and reducing story refinement overhead.
  • Led architectural discussions, technical story definition, and code reviews alongside product managers, QA, and cross-functional engineering teams — consistently bridging business requirements and technical implementation.

Software Engineer @ RevUnit (Remote)

Jan 2022 – Feb 2023

  • Built a full-text product search feature using React, React-Query, and Microsoft Elasticsearch, enabling users to efficiently search and save items across a large-scale materials catalog — improving discoverability across thousands of SKUs.
  • Diagnosed and resolved a critical Azure AD token expiration bug causing silent sign-outs across all users; implemented idle-detection rerouting to restore seamless authentication and eliminate support escalations.
  • Developed a reusable, responsive date range picker component aligned to client design specs across mobile and desktop breakpoints, adopted across multiple product surfaces.

Full-Stack Developer @ Softrams (Remote)

May 2021 – Jan 2022

  • Delivered full-stack web applications for federal health industry contracts using Angular, Node.js, and Loopback REST framework, supporting the full SDLC from requirements gathering through operational support.
  • Designed and built backend REST services in Node.js, partnering with the database team on schema design and query optimization for high-reliability government systems.
  • Owned unit test coverage across Angular and Node.js codebases using Jasmine and Karma, maintaining 70%+ standards and enforcing coverage requirements in all code reviews.

Frontend Developer @ Republic Services

Jan 2019 – May 2021

  • Built and maintained real-time data APIs using AWS Serverless (Lambda, AppSync/GraphQL) and Node.js, powering live updates across multiple internal applications at scale.
  • Implemented enterprise-wide Single Sign-On via Microsoft Azure AD across Angular applications serving thousands of internal users, standardizing identity management and reducing authentication friction.
  • Managed complex application state using NgRx, authored unit tests, and presented feature progress bi-weekly to business stakeholders — developing habits of ownership and communication that carried into senior roles.

Technical Skills

Languages

TypeScript (ES6+), JavaScript, SQL, Python (scripting)

Frontend

React, Angular, NgRx, RxJS, HTML5, CSS3/SASS

Backend & APIs

GraphQL (AWS AppSync), REST API design, Node.js, Express.js, Loopback, AWS Lambda, SQS

Databases

PostgreSQL (Aurora), DynamoDB, MySQL — relational and non-relational persistence strategies

Cloud & DevOps

AWS (Lambda, SQS, DynamoDB, AppSync), Azure, Git, Splunk, microservices, distributed systems

Testing & Practices

Jest, Jasmine, Karma (70%+ coverage standards); Agile/Scrum, code review, full SDLC

Get In Touch

lpadilla321lp@gmail.com