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I am a dedicated software engineer with extensive experience collaborating with talented teams to create scalable software solutions and integrations that grow businesses. I specialize in full-stack development using React, Ruby on Rails, and Node.js, among other technologies, and have contributed meaningfully to projects ranging from patient-facing clinical trial applications to internal factory administration platforms. I thrive on optimizing applications and improving workflows through micro frontends, API integrations, and modern development practices. I enjoy working closely with product managers, UI/UX designers, quality assurance teams, and fellow engineers to deliver robust, high-quality software that meets product and security requirements.…I am a dedicated software engineer with extensive experience collaborating with talented teams to create scalable software solutions and integrations that grow businesses. I specialize in full-stack development using React, Ruby on Rails, and Node.js, among other technologies, and have contributed meaningfully to projects ranging from patient-facing clinical trial applications to internal factory administration platforms. I thrive on optimizing applications and improving workflows through micro frontends, API integrations, and modern development practices. I enjoy working closely with product managers, UI/UX designers, quality assurance teams, and fellow engineers to deliver robust, high-quality software that meets product and security requirements.

Joseph Victor Estolas

Web Developer, Programmer, Full Stack Developer, +1

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I am a dedicated software engineer with extensive experience collaborating with talented teams to create scalable software solutions and integrations that grow businesses. I specialize in full-stack development using React, Ruby on Rails, and Node.js, among other technologies, and have contributed meaningfully to projects ranging from patient-facing clinical trial applications to internal factory administration platforms. I thrive on optimizing applications and improving workflows through micro frontends, API integrations, and modern development practices. I enjoy working closely with product managers, UI/UX designers, quality assurance teams, and fellow engineers to deliver robust, high-quality software that meets product and security requirements.…I am a dedicated software engineer with extensive experience collaborating with talented teams to create scalable software solutions and integrations that grow businesses. I specialize in full-stack development using React, Ruby on Rails, and Node.js, among other technologies, and have contributed meaningfully to projects ranging from patient-facing clinical trial applications to internal factory administration platforms. I thrive on optimizing applications and improving workflows through micro frontends, API integrations, and modern development practices. I enjoy working closely with product managers, UI/UX designers, quality assurance teams, and fellow engineers to deliver robust, high-quality software that meets product and security requirements.

Available to hire

I am a dedicated software engineer with extensive experience collaborating with talented teams to create scalable software solutions and integrations that grow businesses. I specialize in full-stack development using React, Ruby on Rails, and Node.js, among other technologies, and have contributed meaningfully to projects ranging from patient-facing clinical trial applications to internal factory administration platforms.

I thrive on optimizing applications and improving workflows through micro frontends, API integrations, and modern development practices. I enjoy working closely with product managers, UI/UX designers, quality assurance teams, and fellow engineers to deliver robust, high-quality software that meets product and security requirements.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Senior Applications Engineer at Medidata Solutions

May 1, 2024 - September 2, 2025

Provided innovative solutions to streamline data and participant processing within clinical trials and research, enabling organizations to start and finish studies faster. Collaborated with engineers, UI/UX designers, product managers, and QA testers to develop and maintain a patient-facing e-consent application compatible across devices. Contributed to micro frontends and reusable services for clinicians that improved daily workflows. Used React-Redux for frontend, Ruby on Rails for backend and API layers, and built Axios integrations. Updated legacy components and optimized frontend React applications with code splitting and chunking. Converted legacy backend tests from Cucumber to Cypress. Worked with multiple teams to resolve production-level issues, security risks, and data migrations. Reviewed pull and merge requests to reinforce knowledge and maintain internal best practices.

Software Engineer at Gantri

January 31, 2020 - September 2, 2025

Rebuilt internal admin application from Angular 1.5 to React 16 with Redux, CSS Modules, and Webpack. Assisted backend team with database migrations and API responses tailored to new frontend requirements. Worked closely with CTO and factory teams to add features including data visualization for sales and inventory using D3.js and React Charts. Created reusable React pure components to optimize user experience. Implemented updates and refactors to Express APIs and services. Integrated Firebase for authenticated file uploads and asset requests. Applied the Duck pattern for Redux organization and refactored CSS from BEM and SASS to CSS Modules for reuse and bundle size reduction.

Software Engineer at CoverHound

June 1, 2019 - September 2, 2025

Worked full-stack to implement tests, updates, upgrades, features, and tools for internal and consumer-facing applications using React, CSS Modules, Jest, and Ruby on Rails. Updated legacy features including insurance recommendations, sales performance trackers, mobile site optimizations, image compression tools, and landing pages. Implemented the Duck Redux pattern and CSS Modules for newer React apps. Built reusable date-time components contributing to internal React component library and open-source polyfills. Collaborated with backend to set up deployment pipelines integrating GitHub, Capistrano, AWS S3, and CloudFront. Improved background processing and automated emails using Sidekiq and SendGrid. Created API integrations for onboarding new partners and carriers. Developed frontend test suites with Jest and MiniTest.

Software Engineer at Kore Fabrik Inc.

February 28, 2017 - September 2, 2025

Led a team of six engineers developing an AI-driven social platform to connect students, teachers, alumni, and schools. Built platform environments from the ground up using ES6, Node.js, ExpressJS, Sequelize, PostgreSQL, Webpack, ReactJS, and AWS. Developed data structures, secure login and sessions, blogging, user profiles and settings, mailing system, and search logic. Supervised database management and migrations, version control, production support, deployment, and AWS IAM provisioning. Collaborated with CTO, UX designer, and product manager to plan, architect, and produce MVP and demo versions of the platform.

Web Developer at Spot Knocker

March 31, 2016 - September 2, 2025

Gained a deeper understanding and appreciation of redesigning and building a cloud-based advertising platform from the ground up. Collaborated to build the platform using React and Rails. Provided recommendations and feedback during planning, wireframing, and decision-making phases. Learned and implemented ES6, React, Braintree API, Phusion Passenger, and PostgreSQL with Sequelize ORM in sandbox and production apps.