Derek Montgomery
Rails | React | Front-End | AI
Partnering with high-standards individuals to build beautiful, performant, accessible, and exciting software with humans in mind.

Recent Work Experience
- Pitched AI in Content and led its front-end build, achieving 4.5x adoption, 1.6x engagement, and 5.6x upvotes versus its predecessor
- Improved Core Web Vitals of search client: LCP (54%), loading time (32%), FCP (58%), INP (46%), CLS (7%)
- Built agent-agnostic plugins and skills (Claude Code, Codex, Cursor) that documented and automated the team's manual weekly processes
- 2024 O'Reilly Hackathon: Most Impactful for the Business (Runner Up), Best Engineering (Runner Up)
- Promoted from Senior Front-End Developer to lead and mentor a team of fifteen engineers
- Hired half the team directly and mentored two of those hires to lead engineer promotions
- Developed technical training on new web APIs and co-founded an engineering mentorship program
- Built giving and payments platform acquired by Cass Information Systems in 2019
- Architected API, banking network integration, and PCI-compliant payment processing
- Promoted from Front-End Developer within a year; consulted for enterprise clients on front-end best practices
- Grew a single RGA engagement into an Agency-of-Record relationship
Education
Full Sail University
Master of Fine Arts, Media Design
- Marketing agency vision, strategy, process, and management
Tech
- HTML, CSS, JavaScript | TypeScript | Ruby on Rails | Python, Django | React, Redux | React Native, Expo | Node | Datadog
Skills & Competencies
- Agentic AI Development (Claude Code, Codex, Cursor, et al)
- People leadership
- Data visualization
- Performance optimization
- Web accessibility
- Comprehensive unit/integration testing
What I've Built
- RAG-based AI assistants
- Agent Skills
- Design systems & component libraries
- Mobile apps (Expo, React Native)
- Native platform integrations (Raycast, VS Code, Cursor)
- WebRTC video, Twilio SMS/voice
- PCI-compliant payment processing & banking network integrations
- Complex reporting & data aggregation systems
Brands Served
- Case New Holland
- Caterpillar
- Cedars-Sinai
- Daimler
- Herman Miller
- Hospital Corporation of America (HCA)
- Kaiser Permanente
- Learning Care Group
- NordicTrack
- ProForm
- Reinsurance Group of America (RGA)
- Symantec
- Thomson Reuters