Summary

Senior full-stack web developer (React, TypeScript, Node.js) with 15+ years building high-traffic SaaS and ecommerce products. I modernize legacy front ends, improve performance and maintainability, and ship workflow-driven features that reduce support load and speed up customer outcomes. Recent work includes internationalization for multi-market expansion, guided campaign tooling, and data-driven dashboards with GraphQL and external API integrations.


Skills

Frontend

  • React
  • TypeScript
  • Next.js
  • JavaScript
  • HTML
  • CSS / SCSS
  • TailwindCSS
  • Redux

Backend & APIs

  • Node.js
  • Express
  • GraphQL
  • REST APIs
  • SQL (Postgres, MySQL, MariaDB)
  • Auth (JWT, OAuth)

Testing & Tooling

  • Jest
  • React Testing Library (RTL)
  • Vite
  • Git & GitHub
  • CI/CD Pipelines
  • DigitalOcean

Workflow & Additional

  • Agile/Scrum
  • Jira
  • Python
  • OpenAI API
  • structured outputs (JSON)
  • prompt design

Experiences

Senior Full-Stack Web Developer

Independent Consultant

Jul 2024 – Present

  • React
  • TypeScript
  • Node.js
  • GraphQL
  • Next.js
  • Tailwind CSS
  • OpenAI API
  • PostgreSQL
  • DigitalOcean

Full-stack contract and product work, delivering production features and internal tooling with modern React/Node stacks.

  • Selected contract project: Snowology (resort weather platform), built the new Resorts feature with a responsive React + TypeScript UI and a Node + GraphQL backend, integrating external APIs for current weather conditions, live lift/trail status, and forecasts.
  • Built and deployed OpenAI-powered prototypes, including a review summarization tool and a domain-specific chatbot, using structured JSON outputs and reliability guardrails (retries, fallbacks) to reduce malformed responses.
  • Owned end-to-end delivery and deployment on DigitalOcean: provisioned droplets and managed PostgreSQL, configured domains/URLs, set up GitHub Actions CI/CD, and implemented backend tests in Jest.

Senior Front-End Web Developer

Paytronix

https://www.paytronix.com

Sep 2022 – Jun 2024

  • React
  • JavaScript
  • Redux
  • Jest
  • Webpack
  • CSS/SCSS
  • Bootstrap
  • Git/GitHub
  • Jira
  • Code Review

Built and modernized campaign tooling for a loyalty and marketing SaaS platform used by national restaurant and convenience brands.

  • Led the design and implementation of a localization (i18n) framework and internal translation management system, enabling expansion into 7 new markets and opening new revenue channels.
  • Modernized legacy UI by migrating to React functional components with Hooks and Context API, improving performance and maintainability across the high-traffic SaaS platform.
  • Led front-end development of a “Campaign Wizard” tool that streamlined a complex campaign setup into a guided 3-step UI, reducing setup time by 70%, support calls by 10%, and reducing customer frustration.
  • Revamped and illustrated internal setup guides and technical documentation, reducing new developer onboarding time by over 40% and improving team scalability and knowledge retention.
  • Presented team sprint summaries at weekly department-wide calls attended by 90+ engineers.

Senior Full-Stack Web Developer

MRG Assessments

https://www.mrg.com

Jun 2021 – Sep 2022

  • React
  • Node.js
  • JavaScript
  • SQL
  • REST APIs
  • CSS/SCSS
  • Jira
  • Scrum
  • Git/GitHub
  • Redux

Modernized a legacy assessment platform into a fast, accessible React + Node application used by coaches and enterprise clients.

  • Led the redesign and rebuild of the assessment platform as a React + Node application with dashboards and 12-language localization, improving performance (faster page loads), accessibility, and maintainability.
  • Optimized backend queries to align with actual UI data needs, cutting slow requests from multi-second delays to sub-second responses for core workflows.
  • Defined and executed a 5-phase development roadmap with clear milestones and deliverables, managed Epics and Sprints in Jira, and led the team to launch 3 months ahead of schedule.
  • Served as Scrum Master for a small cross-functional team and reported progress and velocity to executive stakeholders.
  • Mentored developers and drove React adoption, improving frontend collaboration and delivery speed.

Full-Stack Web Developer (contract)

MUNIRevs

https://govos.com

Jan 2021 – Jun 2021

  • PHP
  • JavaScript
  • REST APIs
  • Bootstrap
  • CSS/SCSS
  • Git
  • MySQL
  • Bootstrap

Contracted as part of a small team to modernize a SaaS platform used by municipalities for tax filing, licensing, and short-term rental compliance, supporting 90+ municipality sites nationwide.

  • Supported mission-critical state web portals (Colorado, Alaska) used by thousands of businesses for multi-jurisdiction tax filing and fund disbursement.
  • Delivered tax remittance integrations via Avalara, Stripe, and TaxJar.
  • Played a significant role in the front-end UI overhaul, implementing a modern, responsive Bootstrap framework and supporting rollout planning and beta release coordination.
  • Refactored legacy PHP modules and implemented targeted backend changes to support new jurisdiction requirements without breaking existing workflows.
  • Identified opportunities to reduce duplicated client-specific code by moving toward more configuration-driven patterns, improving maintainability as the client base scaled.

Full-Stack Web Developer

Auto Europe

https://www.autoeurope.com

Apr 2013 – Sep 2020

  • ColdFusion
  • JavaScript
  • jQuery
  • CSS/SCSS
  • React
  • SQL
  • Git
  • Jira
  • i18n
  • Code Review

Modernized a multilingual car-rental ecommerce platform, improving architecture, UX, and production reliability across 60+ localized domains.

  • Played a central role in a mobile-first ecommerce redesign serving 60+ localized domains, moving toward a more decoupled architecture and improving maintainability and site performance.
  • Developed and maintained white-label solutions for travel agencies and enterprise partners, building frameworks that allowed for custom branding, bulk account management, and affiliate tracking.
  • Designed and delivered a React dashboard to aggregate and analyze high-volume production error logs, reducing alert fatigue and improving error visibility for support and engineering.
  • Collaborated on side projects, including an Amazon Alexa car-rental prototype, Google Tag Manager funnel analysis, and mobile app enhancements.

Web Application Developer

Outside Television

https://www.outsideonline.com

Jul 2010 – Apr 2013

  • PHP
  • Drupal
  • JavaScript
  • jQuery
  • CSS/SCSS
  • MySQL
  • JSON
  • Git

Built a Drupal-based content platform to streamline editorial workflows and speed up publishing.

  • Built a Drupal CMS (content management system) website from the ground up, including custom modules using PHP, jQuery, and SCSS.
  • Rebuilt the company intranet to centralize shared assets and standardize content workflows across 40+ resort-town TV stations, reducing duplicate work and improving reuse.
  • Partnered with editorial teams to streamline publishing workflows and improve content turnaround.

Web Application Developer

Digital Research, Inc. (DRI)

https://www.digitalresearch.com

Jan 2010 – Jul 2010

  • PHP
  • JavaScript
  • jQuery
  • MySQL
  • CSS

Built complex, logic-driven online surveys with reusable PHP components to standardize question types and improve results visualization.

  • Built interactive online surveys with complex branching logic using PHP and MySQL, delivering reliable data capture for research workflows.
  • Created reusable PHP components to standardize question types and speed up survey development; rebuilt the real-time results dashboard to support charts/graphs.

Education

Plymouth State University

Master's of Business Administration (MBA)Plymouth, NH

https://www.plymouth.edu

University of New Hampshire

Bachelor of Science (BS) in Electrical EngineeringDurham, NH

https://www.unh.edu


Featured Projects

WonderWorld - AI Chatbot

WonderWorld - AI Chatbot

Full-stack, LLM Chatbot with a React/TypeScript UI and Node backend integrating the OpenAI API with provider switching. Added guardrails to keep responses on-topic and consistent, plus session handling for coherent multi-turn chat.

2025
Snowology Resort Dashboard

Snowology Resort Dashboard

A real-time dashboard showing current base and summit temperatures, live lift and trail status, snowfall insights, and early wind-hold indicators. Delivered as a fast, mobile-first React + TypeScript experience powered by a Node.js + GraphQL backend.

2025
Participant Portal Redesign

Participant Portal Redesign

A ground-up redesign of MRG’s legacy assessment platform into a modern, fast, React-based application that greatly improved usability, performance, and accessibility for coaches and enterprise clients.

2021

© 2026 Jeff Olivier

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