Senior Software Engineer · 12+ Years

Denisse
Wehner

Full-Stack · Ruby on Rails · React · Digital Security

Cocoa Beach, FL

Senior Software Engineer. 12+ years in full-stack development, systems architecture, and digital security. Focused on performance-first engineering and UX that doesn't get in the way. Builds software that scales — and that people actually want to use.

Senior Software Engineer Mar 2014 — Present
Stay Healthy Zone, LLC · (Remote) Plantation, FL
  • Architecture & System Design: Translated stakeholder ideas into scoped projects, defined actionable tasks, designed technical architecture, and led third-party integrations to deliver solutions reliably at scale.
  • Platform Migrations: Completed the back-end migration from Java to Rails and led the front-end rebuild from Backbone.js to React, adopting Redux and RTK Query for state management and data fetching.
  • Technical Leadership: Grew into Lead Developer over a decade — mentoring engineers through code reviews, workshops, and cross-departmental coordination.
  • Search Engineering: Built and maintained search infrastructure with Elasticsearch and OpenSearch, including owning the migration between platforms.
  • Product Personalization: Architected a meal-planning and habit-tracking engine driven by user profile data, improving engagement and retention.
  • Performance & Reliability: Proactively surfaced and resolved bottlenecks before production impact, optimizing database performance and application responsiveness. Full SDLC Ownership: Owned the complete feature lifecycle from requirements through cloud deployment.
Software Engineer Mar 2013 — Mar 2014
Centronet Marketing, LLC · Margate, FL
  • GIS Application Development: Designed and built location-aware features on a Ruby on Rails platform, with a focus on scalability and spatial data integrity.
  • Routing Engine: Implemented geospatial routing logic using PostgreSQL and PostGIS, optimizing distance and cost calculations for dynamic moving company quote generation.
  • A/B Testing Infrastructure: Developed targeted landing pages in Rails to support experimentation workflows, directly informing UX and marketing strategy.
Software Engineer Sep 2010 — Apr 2013
Pentalogix, LLC · (Remote) Portland, OR
  • E-commerce: Implemented features for an e-commerce site using OS Commerce (PHP, JavaScript, MySQL).
  • Modernization: Initiated migration from OS Commerce to Spree (Ruby on Rails).
  • Operations: Managed email campaigns, landing pages, and utilization reporting.
Research Assistant Oct 2009 — Aug 2010
CTI – ESPOL · Guayaquil, Ecuador
  • Accessibility: Part of the team that built "Jossie," a CMS focused on accessibility for visually impaired users.
  • Collaboration: Member of the LACLO research group on recommendation systems for scientific content.