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Dennis – Ruby, Ruby on Rails, Node.js, experts in Lemon.io

Dennis

From Dominican Republic (UTC-4)

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Full-stack Web DeveloperSenior
Back-end Web DeveloperSenior
6 years of commercial experience
Administration
Automotive
Credit and lending
E-learning
Real estate
Sales
CRM
Mobile apps
SaaS
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Dennis – Ruby, Ruby on Rails, Node.js

Meet Dennis Every, a seasoned Full-Stack Engineer with over 6 years of hands-on experience in Ruby on Rails, React.js, and Node.js. Dennis brings a pragmatic blend of backend expertise, front-end fluency, and solid architectural thinking. He’s led feature delivery in production environments and contributed to key technical decisions, particularly in startup contexts where speed and quality go hand-in-hand.

Dennis stands out for his deep knowledge of Ruby/RoR, strong grasp of software engineering fundamentals (SOLID, design patterns, and optimization), and familiarity with microservices, concurrency, and cloud tooling. He uses AI tools thoughtfully, with a clear focus on improving—not replacing—his own work. Known for clear communication, leadership, and adaptability, Dennis is enthusiastic about long-term, backend-focused roles where he can quickly make a meaningful impact.

Main technologies
Ruby
6 years
Ruby on Rails
6 years
Node.js
6 years
Additional skills
React
Python
JavaScript
Docker
AWS
SQL
Containers
TDD
Direct hire
Potentially possible
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Experience Highlights

Senior Software Engineer
Dec 2022 - Ongoing2 years 5 months
Project Overview

The customer was a corporate e-learning platform used by Fortune 500 companies to manage and deliver interactive training courses. The system supported course authoring, role-based user management, automated reporting, progress tracking, and API integrations with third-party systems. Focused on backend development and ensuring scalable architecture for high-volume enterprise usage.

Responsibilities:

Dennis was responsible for the following:

  • built out new features to extend platform capabilities and improve user experience;
  • integrated AI functionality through third-party APIs to enhance platform intelligence;
  • refactored legacy code using established design patterns to improve maintainability and structure;
  • optimized performance through efficient database query tuning, strategic caching, and implementation of background jobs.
Project Tech stack:
Ruby on Rails
JavaScript
REST API
RSpec
Docker
AWS
MySQL
Tech Lead
Feb 2019 - Nov 20223 years 9 months
Project Overview

A SaaS platform built for real estate agents and agencies to manage listings, automate marketing, and streamline client relationships. Designed to support digital growth, it offered integrated CRM, real-time property search with advanced filters, automated email/SMS campaigns, and performance analytics. Key features included listing syndication, lead tracking, agent performance reporting, and mobile-friendly access for on-the-go use.

Responsibilities:

Dennis' scope of contribution included the following:

  • designed and implemented front-end and back-end architecture to support core platform functionality;
  • developed new features based on client requirements and business needs;
  • integrated third-party APIs to extend system capabilities and enable external service interactions;
  • built and maintained web scrapers to automate content aggregation from external sources.
Project Tech stack:
Ruby on Rails
RSpec
Docker
AWS
React
JavaScript
Tech Lead
Dec 2019 - Nov 20222 years 10 months
Project Overview

A cloud-based software platform designed for automotive dealerships to efficiently manage and market their vehicle inventories online. Built to support multiple tenants, the system enabled dealers to automate lead generation, streamline inventory management, and deliver a branded digital presence. Core capabilities included real-time vehicle search, automated customer engagement, and seamless import/export of listings and media.

Responsibilities:

Dennis contributed in the following ways:

  • developed features for real-time inventory search and display across dealer websites;
  • implemented inventory import/export functionality to synchronize listings across platforms;
  • integrated automated lead capture and customer notification systems;
  • supported custom branding and theming for dealer-specific websites;
  • collaborated with stakeholders to ensure the platform met operational needs of multiple dealerships.
Project Tech stack:
Ruby on Rails
PostgreSQL
React
RSpec
AWS
Tech Lead
Feb 2021 - Sep 20221 year 7 months
Project Overview

A secure mobile and web platform was developed for a credit union to streamline and automate the entire loan application process. The system was designed to efficiently manage high volumes of loan requests by enabling digital submissions, conducting automated eligibility checks, and supporting workflow management for application review and approval. Key features included document uploads, customer notifications, and comprehensive administrative dashboards to ensure regulatory compliance.

Responsibilities:

Dennis managed the following:

  • designed and implemented front-end and back-end architecture;
  • developed and delivered requested features;
  • integrated applications with RESTful JSON APIs.
Project Tech stack:
Ruby on Rails
Ionic
Angular
PostgreSQL
AWS
RSpec

Education

2002
Economics
Masters

Languages

Portuguese
Upper-intermediate
Spanish
Advanced
Dutch
Advanced
English
Advanced

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