# Karin Fernandez

> Senior Software Engineer | Frontend Specialist (React, Next.js) | SaaS & AI Product Builder

Location: San Francisco, California, United States
Profile: https://flows.cv/karinfernandez

https://karinfernandez.com/

I’m a Frontend Engineer with 8 years of experience building React / Next.js products, design systems, and fast, modern user interfaces. I enjoy working from 0→1 and partnering with founders, PMs, and designers to translate ideas into clean, high-quality experiences.

I’ve worked across both SaaS platforms and early-stage startups, always focusing on performance, UX quality, and scalable frontend architecture. Recently, I’ve been deepening my expertise with React Query to improve caching strategies, background updates, and overall frontend performance.

## Work Experience
### Software Engineer @ Pallas Security
Jan 2026 – Present | California, United States

### Senior Software Engineer @ PROS
Jan 2024 – Present | Remote
Scaled and optimized the PROS Marketplace frontend (Next.js, Tailwind, Hygraph), enhancing React components for responsiveness and ensuring consistent UX across the global product showcase.

Implemented the Marketplace design system, ensuring scalable, consistent UI across customer-facing modules and improving developer velocity.

Optimized slow-loading pages across the Next.js platform, reducing page load times by ~30% through caching and rendering optimizations.

Maintained and improved a Cloudflare Workers project handling API endpoint caching and routing, ensuring reliable and efficient data delivery for high-traffic requests.

Integrated automated builds and environment configuration for the Cloudflare Workers project using GitHub Actions.

### Software Engineer @ PROS
Jan 2022 – Jan 2024
Co-developed the frontend of the PROS Marketplace platform (Next.js, Tailwind, Hygraph via GraphQL APIs, deployed on Vercel), centralizing product offerings and improving content discoverability.

Translated business requirements into scalable React/Next.js implementations, balancing usability with performance in collaboration with Product & Design.

Maintained and optimized 10+ shared React components used across teams, improving reliability and speeding up new feature development.

Built an interactive Histogram component to visualize fare trends by route, enabling users to explore price fluctuations and navigate directly to booking pages.

### Frontend Web Developer (Acquired by PROS in 2022) @ EveryMundo
Jan 2018 – Jan 2021 | Miami-Fort Lauderdale Area
Delivered core frontend features for global airline clients at a high-growth travel-tech startup, scaling solutions that were later adopted across multiple airline platforms.

Built and maintained a React-based design system and UI library (carousels, tables, form components), streamlining development and ensuring consistent UX across airline products.

Scoped, tested, and launched stable releases with Product & QA, reducing production issues and improving client satisfaction.

Partnered with Product on feature requirements and roadmap priorities, aligning technical delivery with airline business objectives.

### Teaching Assistant @ Ironhack Web Development Bootcamp
Jan 2016 – Jan 2016 | Miami-Fort Lauderdale Area
- Supported instructors in delivering the Full-Stack and Front-End Web Development courses covering HTML, CSS, JavaScript, jQuery, Ruby, Ruby on Rails, and WordPress.

- Led breakout sessions and small-group workshops to reinforce lecture topics for a class of 20+ students.

- Reviewed homework and project code to ensure understanding of key concepts and best practices.

- Provided 1:1 coaching to help students grasp theory, debug code, and improve their solutions through refactoring.


## Education
### Full-Stack Web Development Bootcamp
Ironhack

### Bachelor of Engineering - BE in Hydraulic Engineering
Instituto Superior Politécnico José Antonio Echeverria


## Contact & Social
- LinkedIn: https://linkedin.com/in/karinfernandez

---
Source: https://flows.cv/karinfernandez
JSON Resume: https://flows.cv/karinfernandez/resume.json
Last updated: 2026-04-01