Senior Ruby Developer

Acted as the sole backend engineer, defining architecture, enforcing code quality standards, and delivering features end-to-end without supervision. Collaborated directly with the client to translate product requirements into technical specifications and working features. Integrated Stripe payment processing handling ~6,000 transactions/month. Managed Mailchimp email infrastructure with ~30 active templates and 20,000+ active recipients. Implemented HubSpot CRM integration, including a successful launch of automated deals pipeline. Denormalized key database structures, optimizing a critical endpoint from ~3s response time down to 500ms — a 6x performance improvement. Conducted code reviews and drove TDD practices, maintaining high engineering standards across the entire backend. Optimized the CI/CD pipeline by parallelizing the test suite, reducing deploy run time by 30%, and cutting build-minute costs proportionally. Led a full platform upgrade from Ruby 3.x to Ruby 3.4 and Rails 7 to Rails 8, resolving compatibility issues across ~50 dependent gems.

Designed and shipped the core pay-per-share system: Kafka-based tracking, fraud-resistant attribution, and per-share influencer payouts across ~30 active campaigns.

Integrated 2 airlines end-to-end — from direct communication with airline representatives to production-ready API implementation with SOAP/REST normalization. Improved a hybrid Python/Ruby parser, bringing the total integrated data sources to 3 and expanding available inventory for clients. Collaborated directly with airline representatives and clients to clarify requirements and iterate on features rapidly.

Built AI-powered meal parsing integration using OpenAI GPT-3 API — converting free-text meal descriptions into structured ingredient lists. Integrated USDA FoodData Central API to fetch nutritional data per ingredient. Built the entire backend for an iOS banking app with cashback rewards system, delivering full backend within 3 months and validating core product assumptions.

Diagnosed and fixed an open-source CLI gem that had been broken for 6+ months, restoring a critical part of the development workflow.

Remote