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A career generalist with a record of building performant, accessible experiences that meet the needs of both users and businesses.I love using the right technologies and frameworks for the job, asking why to solve the root causes, and enabling others to do their best work.
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Senior Software EngineerMantl Jun 2024 - Jul 2024New York, New York, Us -
Lead Frontend EngineerCognition Controls Mar 2023 - May 2024
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Senior Front End EngineerMantl Mar 2022 - Mar 2023New York, New York, Us -
Senior EngineerNerd Street Nov 2020 - Mar 2022Philadelphia, Pa, Us• Proposed and implemented Sanity CMS as a WordPress replacement,to better integrate with Next.js React website, improving contenteditor experience and ease of development• Introduced Image CDN usage and optimization to improve userexperience• Established SSR / CSR / GraphQL caching and revalidation strategy• Led performance and accessibility initiative to meet WCAC 2.0 LevelAA compliance and improve Lighthouse scores• Implemented Firebase anonymous user carts and registration conversion, refactoring large portions of Auth logic and session hooks• Collaborated with UX Design to establish repeatable, core components, to streamline dev and design process -
Senior Full Stack EngineerThink Company Jan 2020 - Nov 2020Philadelphia, Pa, Us -
Senior Software DeveloperThink Company Feb 2019 - Jan 2020Philadelphia, Pa, Us- Played key UI Architect role- Built an internal application for tracking training budgets, using a serverless architecture, Google Auth, Express, and React on Netlify- Supported active development across 3 product teams- Streamlined CI/CD pipeline builds- Consulted on Caching and Security best-practices- Worked side-by-side client's back-end engineers to pioneer their org's Single Page App development, laying the groundwork for more rapid UI development and a richer user experience- Maintained and extended a pattern library across many iterations -
Software DeveloperThink Company Jul 2016 - Feb 2019Philadelphia, Pa, Us- Developed React app and implemented .NET server-side rendering for greenfield project- Converted ColdFusion markup and KnockoutJS components to React components, unit-tested with Jest/Enzyme- Architected a pattern library, deployed to a private repository and leveraged across 9 applications- Worked on-site with the client, participated in Scrum ceremonies and pair-programming- Designed requirements for and consumed Middle-tier services- Worked side-by-side with internal designers to meet client’s UI/UX needs- Raised and mitigated security concerns in legacy code (XSS, form data exposure)- Replaced legacy project’s abandoned Grunt build process with documented Webpack process- Provided competitor analysis to support decisions -
Front End DeveloperNimblelight Jan 2014 - Jul 2016Philadelphia, Pa, UsPrimarily a front end developer and an assistant in the design of UI/UX, I also worked to improve the development operations deployment process, including:- Migrating a hosted .NET Application to a cloud architecture- Introducing versioning and continuous integration best practices- SQL Installation, migration and tuning- Responsive HTML/CSS/Javascript- Animation and SVG / HTML Canvas effects- Gulp and SCSS- Extensive Photoshop Experience- Experience supporting IE 8 -
Lighting DesignerWorld Cafe Live Feb 2013 - Feb 2014Philadelphia, Pa, UsResponsible for designing and executing a unique and appropriate live show for performing bands, private corporate events, and private affairs. -
Technical DirectorUpper Dublin School District Sep 2013 - Jan 2014Responsible for technical aspects of theater at Upper Dublin High School, including Lighting and Set Construction.Main focus on the education of students, with an emphasis on safety and best practice. -
Board ProgrammerTemple University Oct 2012 - Oct 2012Philadelphia, Pennsylvania, UsProgrammed ETC Ion with a focus on speed, and accuracy. Programmed and designed animation for 8x8 bit-mapped Source Four array.
Ryan Killeen Skills
Ryan Killeen Education Details
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Muhlenberg CollegeTechnical Theater -
Muhlenberg CollegeCommunications
Frequently Asked Questions about Ryan Killeen
What is Ryan Killeen's role at the current company?
Ryan Killeen's current role is Building Things For People.
What is Ryan Killeen's email address?
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What is Ryan Killeen's direct phone number?
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What schools did Ryan Killeen attend?
Ryan Killeen attended Muhlenberg College, Muhlenberg College.
What are some of Ryan Killeen's interests?
Ryan Killeen has interest in Civil Rights And Social Action, Science And Technology, Education, Politics.
What skills is Ryan Killeen known for?
Ryan Killeen has skills like Javascript, Html 5, React, Cascading Style Sheets, Sass, Photoshop, Word, Jquery, Knockoutjs, Asp.net Mvc, Less, Microsoft Azure.
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