Kirk Longuski
Summary
10-year veteran Front-End Architect and Team Lead specializing in the modernization of complex enterprise systems using TypeScript, React, and Vue. Proven track record of technical excellence, including driving a 40-point Lighthouse performance uplift and scaling automated test coverage to 90% across distributed repositories. Deep expertise in bridging engineering and product goals, managing agile workflows, and implementing robust CI/CD pipelines (Azure DevOps/AWS). Experienced in hiring, mentoring, and leading cross-functional teams within HIPAA-compliant Healthcare and E-commerce environments.
Experience
Senior Consultant at Improving LLC
Remote (Canton, MI) | 2022-11 to Present
Responsibilities
- Develop new features for customer-facing mobile apps and websites
- Maintain and modernize legacy systems, including bug fixes
- Author and maintain unit, end-to-end, and snapshot tests across frameworks
- Manage ticket triage and sprint workflows in Jira and Azure DevOps
- Communicate with design, product, analytics, and organizational leadership
Achievements
- Modernized internal tools and customer UIs; improved Lighthouse from mid-40s to high-80s within 3 months
- Designed and created a new customer-facing site header
- Designed and delivered a new React Native medication adherence flow for a health tracking app
- Designed and created a new component library within Storybook
- Increased automated test coverage from negligible to ~90% overall; snapshot tests covered all components
Tech Stack
- TypeScript
- React
- Next.js
- Redux
- React Native
- Vue 3
- Nuxt.js
- JavaScript
- CSS
- HTML
Leadership
- Interviewed candidates and reviewed resumes
- Led triage, retrospectives, and pointing ceremonies in Agile workflows
- Owned features from concept through planning, design, implementation, and maintenance
Senior Software Engineer at Sharper Image
Remote (Farmington Hills, MI) | 2022-01 to 2022-11
Responsibilities
- Build new features and maintain functionality for sharperimage.com
- Develop and maintain internal tools for reporting and inventory management
- Mentor and lead a junior developer
- Design and plan new feature work
- Interface with Edgio remote team for CDN support
- Provide on-call support through holidays and weekends
Achievements
- Implemented A/B testing infrastructure and executed experiments (Optimizely)
- Interviewed and recommended junior developer hire
- Rewrote PL/PD pages
Tech Stack
- TypeScript
- React
- Next.js
- Vue (internal tools)
- DataTables
- JavaScript
- CSS
- HTML
Leadership
Software Engineer at Nokia Deepfield
Ann Arbor, MI | 2017-05 to 2022-01
Responsibilities
- Build new features and fix bugs across a large front-end codebase
- Participate in rewriting a complex home-rolled front-end framework to modern React
- Design complex end-user forms
- Create complex visualizations with D3 and Highcharts driven by form interactions
- Contribute to design and planning processes
Achievements
- Retired a home-rolled front-end framework in favor of React to improve readability, developer experience, and maintainability
Tech Stack
- TypeScript (led transition from JS)
- TypeScript
- React
- Redux
- D3
- Highcharts
- JavaScript
- CSS
- HTML
Leadership
- Participated in and later ran resume reviews and technical interviews (~20 interviews across 3 years)
Front-end Engineer at Mountain Pass Solutions
Ann Arbor, MI | 2016-01 to 2017-02
Responsibilities
- Sole front-end engineer
- Redesigned the customer-facing site
- Implemented end-to-end testing
Achievements
Tech Stack
- JavaScript
- CSS
- HTML
- jQuery
- jQuery UI
- Nightwatch
Leadership
Full Stack Engineer at DotSignal
Remote | 2015-05 to 2015-12
Responsibilities
- Full stack engineer for a mobile-first real estate mapping site
Achievements
Tech Stack
- PHP
- JavaScript
- CSS
- HTML
- jQuery
Leadership
Technologies
JavaScript - Expert
10 years experience
Last used: 2025-11
Improving LLC, Sharper Image, Nokia Deepfield, Mountain Pass Solutions, DotSignal
TypeScript - Expert
8 years experience
Last used: 2025-11
Improving LLC, Sharper Image, Nokia Deepfield
HTML - Expert
10 years experience
Last used: 2025-11
Improving LLC, Sharper Image, Nokia Deepfield, Mountain Pass Solutions, DotSignal
CSS/Sass/LESS - Expert
10 years experience
Last used: 2025-11
React - Expert
8 years experience
Last used: 2025-11
Improving LLC, Sharper Image, Nokia Deepfield
jQuery - Expert
6 years experience
Last used: 2022-02
Mountain Pass Solutions, DotSignal
Git - Expert
10 years experience
Last used: 2025-11
Node.js - Expert
8 years experience
Last used: 2025-06
Next.js (SSR) - Expert
3 years experience
Last used: 2025-06
Redux - Expert
3 years experience
Last used: 2025-06
Vue - Expert
2 years experience
Last used: 2022-11
Nuxt - Expert
2 years experience
Last used: 2022-11
Jest - Expert
3 years experience
Last used: 2025-06
Emotion (CSS-in-JS) - Expert
2 years experience
Last used: 2025-06
GitHub - Expert
8 years experience
Last used: 2025-11
Azure DevOps - Advanced
3 years experience
Last used: 2025-06
React Native - Advanced
1 years experience
Last used: 2025-11
D3 - Advanced
5 years experience
Last used: 2022-02
Nokia Deepfield
Highcharts - Advanced
5 years experience
Last used: 2022-02
DataTables - Advanced
5 years experience
Last used: 2022-02
Cypress - Advanced
1 years experience
Last used: 2022-11