Jonah Kessler
Frontend engineer, React and TypeScript, testing and accessibility
Raleigh, NCjonah.kessler@example.com(555) 372-9148jonahkessler.example.com
Summary
Frontend engineer with a BS in Computer Science and two years building the React dispatch board of a field service app used by 3,200 technicians a day. Writes typed, tested components and moved the board's forms onto the shared component library.
Experience
Software engineer I, frontend
Jun 2024 – Present
Umstead Field Software · Raleigh, NC
- Built the drag-and-drop dispatch board in React and TypeScript that schedules 3,200 technicians a day, with keyboard support for every action.
- Standardized 18 dispatch forms on the shared component library, deleting 4,100 lines of one-off form code.
- Authored 230 Testing Library and Playwright tests for the board, and escaped UI bugs fell from 14 a month to 5.
- Resolved 37 screen reader defects from an axe and VoiceOver audit, clearing 100% of the board's WCAG 2.2 AA failures.
Frontend engineering intern
May 2023 – Aug 2023
Beaverdam Analytics · Raleigh, NC
- Built a date range picker used on 40 dashboards by 1,500 customer accounts in its first month.
Projects
Open-source contribution, chart keyboard navigation
TypeScript, D3
- Delivered keyboard navigation for an open-source charting library, merged upstream and shipped to 12,000 weekly npm downloads.
Education
Bachelor of Science in Computer Science
Aug 2020 – May 2024
Jordan Lake University · Raleigh, NC
Skills
- Languages
- TypeScript, JavaScript, HTML, CSS
- Frameworks
- React
- Tooling
- Vite, Playwright, Jest, Git
- Practices
- Web accessibility, Design Systems, Figma





