Martin Streicher

Provide custom software design, development, hosting, and maintenance services and augment existing development teams. Designed and built a Ruby/Rails automation system using metaprogramming and Rails introspection so end-users could author chained triggers, mutations, and notifications with references to prior step data. Expanded an end-user report writer to run custom functions, generate columns from Rails associations, and export to multiple formats, combining a robust Rails API with Vue. Upgraded multiple Rails applications from 5/6/7 to Rails 8, including a significant Delayed Job to Sidekiq Enterprise infrastructure migration. Built a Shopify Carrier Service using Ruby, REST, and GraphQL to compute shipping fees from complex business rules (holiday deadlines, expedited orders, material costs). Created a bidirectional document exchange service with Le Monde, including a custom bilingual text editor. Built a Ruby DSL/interpreter for real-time voice and SMS interventions (Twilio-bas

Led the design, development, and ongoing expansion of a Rails API-based personalization microservice. Implemented single sign-on across six variants of the company’s core application to support user activity sharing among portals. Served millions of users and managed hundreds of millions of preference records. Realized zero-downtime database migrations while keeping a stable environment for developers. Used JavaScript to track user activity and logins across a partner network of web sites to improve provenance and referral payout accuracy.