# Jeffrey Kandel

> Sr. Software Engineer at Catalyst Software

Location: New York, New York, United States
Profile: https://flows.cv/jeffreykandel

Hi, I'm Jeff!  I love building developer tools and experimenting with new web technologies. I work a lot with React, functional CSS, and GraphQL.  I contribute to and help maintain ESFiddle.net, an open-source application for testing and sharing the latest JavaScript code.  If you want to work together message me!

Proficient: Javascript, Node/Express, React, Redux, GraphQL, Tachyons.io, HTML5, CSS3, SQL, Sequelize, PHP

See my work at: jeffkandel.github.io
Read my code at: github.com/JeffKandel

## Work Experience
### Senior Software Engineer @ Catalyst Software
Jan 2022 – Jan 2025 | New York, United States

### Software Engineer @ Catalyst Software
Jan 2018 – Jan 2022 | Greater New York City Area

### Software Engineer @ FollowUp Health
Jan 2018 – Jan 2018 | Greater New York City Area
• Built and launched the web platform for a brand new senior care startup
• Rapidly iterated on technical prototypes to facilitate management decisions
• Architected and implemented flexible solutions for state management, data
aggregation, and senior care recommendations
• Developed features including Node backend, RESTful API, React/Redux frontend,
provider recommendation system, and customer referral tool

### Teaching Fellow @ Fullstack Academy of Code
Jan 2017 – Jan 2017 | Greater New York City Area
•	Rebuilt automated grading platform to utilize current Docker Remote API, saving up to an hour of grading time per assessment for instructors and fellows
•	Mentored a cohort of JavaScript developers, providing technical instruction and project management
•	Led technical interview preparation that introduced students to topics such as Big O, data structures, and dynamic programming

### Consultant @ Eccella Corporation
Jan 2015 – Jan 2017
•	Implemented data integration for midsize health administrator, reducing client onboarding time from three weeks to four hours and realizing significant annual savings
•	Built an operational data store and Tableau reporting dashboard to provide real time data integration monitoring
• Collaborated on data quality solutions for global leader in legal research

### PHP Developer/Support Engineer @ SurveyGizmo
Jan 2014 – Jan 2015 | Boulder, Colorado
PHP Developer/Support Engineer Nov. 2014 – Aug. 2015
• Planned and built new features for an agile web application working on a LAMP stack
• Implemented new integrations with companies such as Facebook and Salesforce
• Resolved critical bugs involving mobile/offline use, survey sharing, and response caching
• Provided peer programming and code review to ensure quality

Support Engineer Jan. 2014 – Oct. 2014
•	Provided outstanding customer support through phone and email interactions
•	Programmed custom HTML/CSS, Javascript, and PHP for specific customer needs and projects
•	Previewed new features, particularly statistics functions, as part of testing and QA process

### Math Teacher @ Decatur High School
Jan 2012 – Jan 2013 | Federal Way, Washington
•	Planned and delivered engaging, effective daily lessons for 140 ninth through twelfth grade special and regular education students
•	Collaborated with colleagues and outside professionals to develop creative lessons that met the learning needs of all students through group projects, tech programs, and hands-on activities
•	Achieved a 70% passing rate among graduating 12th graders, twice the district-wide passing rate for senior math assessments

### In All Languages – Department Head and Radio Host @ WKCR-FM NY 89.9
Jan 2008 – Jan 2012
•	Expanded In All Languages department, producing two new radio programs: Middle Eastern Influences (weekly) and Ragas Live (monthly)
•	Recruited station interns and supervised training in program content and sound engineering, adding five new programmers each year


## Education
### Bachelor of Arts (B.A.) in Mathematics
Columbia University

### Javascript Development in Software Engineering
Fullstack Academy


## Contact & Social
- LinkedIn: https://linkedin.com/in/jeffrey-kandel
- Portfolio: https://jeffkandel.github.io
- GitHub: https://github.com/jeffkandel

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Source: https://flows.cv/jeffreykandel
JSON Resume: https://flows.cv/jeffreykandel/resume.json
Last updated: 2026-03-31