I love to solve problems and learn new things. I enjoy learning new programming languages and challenging myself. I'm especially interested in fault tolerance and high scalability architecture.
Languages: Ruby, Elixir, Go, Javascript/Typescript, Python
Web: Rails, Phoenix, Node.js
Datastores: PostgreSQL, MySQL, Dynamodb, Redis, ETS
- Primarily Ruby on Rails with Node.js applications (mostly NestJS)
- Reduced costs by optimizing database queries, code and architecture
- Built robust, scalable systems using AWS (EC2, ECS(Fargate), Kinesis, Lambdas, SQS, Dynamodb)
- Increased API performance and reliability
- Led backend team to more efficient workflow, code quality improvements, better team cohesions
- Project: Ad mediation API
- Scalable, simple and fast NestJS application deployed on EC2 with autoscaling
- Served ads based on user data (demographics, ad limits, placement)
- Project: Charge screen
- Allowed users to earn points while charging their phone
- Built a solution that scales with our user growth
- Built security into the solution to prevent fraud
- Uses redis heavily to keep it fast and efficient
- Project: Influencer experience improvement
- Architected a solution to improve system performance while also improving the experience for power users
- Worked without issue since implementation
- Project: Performance improvements
- Re-architected code so that we could remove unnecessary database locks
- Improved third party integrations to eliminate unnecessary database updates (autovacuums became a problem)
- Improved transaction code so that user updates were quicker
- Added caching using redis
- Improved database queries (examples: adding indexes, reworking queries based on performance tests, changing database schema to better fit our use case)
- Project: Revenue reporting tool
- Integrated with advertising partners to collect revenue data in one place
- Built a fault-tolerant application to better handle third party API failures
- Worked with product team to integrate into AWS QuickSight for better data exploration
- Wrote scalale code
- Processed and worked with millions of records
- Use background processing to interact with 3rd party APIs and process data
- Flexible API could join several tables, and response must be kept low
- Secure code
- HIPAA compliance to protect privacy of patients
- Use of brakeman and other audits to maintain security
- Reliable code
- Medical offices depend on this application so reliability was a priority
- Worked on upgrading Rails 4 to Rails 5
- Maintained different public API versions
- Worked with Twilio to send text/voice messages, process responses
- Project: Appointments
- Worked with existing feature foundation to extend and improve usability
- Improved performance by reworking queries, caching appropriately
- Balanced product requirements with engineering requirements
- Delivered features on time while slowly reducing technical debt
- Project: File center
- Improved usability by reducing some possibility of user errors by properly handling duplicate data, invalid data, etc.
- Improved performance by using business rules to catch validation issues before heavy processing
- Python (Django) application converted to Ruby on Rails
- Test Driven with emphasis on maintainability
- Reduced page load time from ~3 seconds to ~200ms
- Integrated with Braintree (merchant accounts)
- Rails 3 converted to Rails 4
- Wrote scalable, secure and reliable code to handle the rapid traffic growth
- Worked closely with billing system using Stripe
- 'Owned' many large projects which were core features of the site
- Project: Calculators
- Created calculator tool to help customers make investment decisions
- Used TDD to ensure accuracy and reduce unnecessary complexity
- Project: Hard Money Lender System
- Built a self-serve subscription system for customers
- Reduced overhead and increased revenue
- Project: Book Order System
- Built a system for managing book orders throughout the order's life cycle: purchasing, fulfillment and shipping
- Improved productivity of team while reducing human errors
- Rails 3 and Rails 4
- Worked closely with clients (game development studios) to build web sites, billing integrations, game authentication servers and more
- Integrated with many billing and game APIs to handle the international market
- Architected several new projects with consideration of expected traffic, reliability needs, client goals and development time
- Project: Animal Jam
- Maintained and extended existing site
- Developed and executed the localization process
- Integrated with several payment processors to allow customers many ways to pay
- Provided a robust, reliable and performant API for game servers to interact with
- Project: ESO
- Wrote a fast game authentication server to handle consistent and burst traffic
- Oversaw routine security and performance audits
- Architected the application into scalable services with fault tolerance in mind
- Helped build new platform in Ruby on Rails
- Built automated testing framework using Java and Selenium
- Maintained existing PHP applications (CakePHP / SilverStripe)
- Project: Client Workflow System
- Scheduling system for managing recurring or one time events
- Email parsing using (basic) natural language processing
- Integrated with their phones and could connect calls from leads to clients
- Fault tolerant design
- Project: Website Builder
- Drag and drop design (using some jQuery UI but also custom plugins)
- Site was made up of components which allowed very rich designs
- Satisfied ease of use requirements while allowing custom building by internal admins
- Written in Elixir with Phoenix
- Supports local schools with fundraising challenges
- Team, member and event management including donation goals and rewards
- Inspired by a family member's struggle to find good, affordable software to meet their needs
- Written in Go
- Networked server (using sockerts) supporting clients playing an online game
- Uses channels for event based architecture
- Fully featured game including combat, leveling, spells, items and more.