Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am an experienced and versatile frontend developer and UI/UX designer with over 6 years of experience building, developing, and designing startup platforms across diverse industries. I have a proven track record in frontend development, UI/UX design, project management, and extensive QA testing. My expertise ranges from leading frontend teams to architecting high-traffic products using modern technologies, optimizing performance and SEO, to collaborating closely with design and product teams to improve user engagement. I thrive on delivering quality solutions that drive real business results.…I am an experienced and versatile frontend developer and UI/UX designer with over 6 years of experience building, developing, and designing startup platforms across diverse industries. I have a proven track record in frontend development, UI/UX design, project management, and extensive QA testing. My expertise ranges from leading frontend teams to architecting high-traffic products using modern technologies, optimizing performance and SEO, to collaborating closely with design and product teams to improve user engagement. I thrive on delivering quality solutions that drive real business results.

Eduardo Espino

Front-End Developer, UI Designer, UX Designer, +2





I am an experienced and versatile frontend developer and UI/UX designer with over 6 years of experience building, developing, and designing startup platforms across diverse industries. I have a proven track record in frontend development, UI/UX design, project management, and extensive QA testing. My expertise ranges from leading frontend teams to architecting high-traffic products using modern technologies, optimizing performance and SEO, to collaborating closely with design and product teams to improve user engagement. I thrive on delivering quality solutions that drive real business results.…I am an experienced and versatile frontend developer and UI/UX designer with over 6 years of experience building, developing, and designing startup platforms across diverse industries. I have a proven track record in frontend development, UI/UX design, project management, and extensive QA testing. My expertise ranges from leading frontend teams to architecting high-traffic products using modern technologies, optimizing performance and SEO, to collaborating closely with design and product teams to improve user engagement. I thrive on delivering quality solutions that drive real business results.

Available to hire

I am an experienced and versatile frontend developer and UI/UX designer with over 6 years of experience building, developing, and designing startup platforms across diverse industries. I have a proven track record in frontend development, UI/UX design, project management, and extensive QA testing.

My expertise ranges from leading frontend teams to architecting high-traffic products using modern technologies, optimizing performance and SEO, to collaborating closely with design and product teams to improve user engagement. I thrive on delivering quality solutions that drive real business results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Frontend Engineer & UI/UX Design Lead at Acumedia Corporation

July 1, 2018 - Present

Led and scaled a distributed 5-person frontend team, mentoring junior and mid-level developers while establishing coding standards and reducing defects by 30%. Architected and delivered three high-traffic products using modern technologies like React, Next.js, TypeScript, Vercel, and serverless APIs. Improved application performance significantly through code-splitting, critical CSS inlining, image lazy-loading, and edge caching, achieving a 4× improvement in Core Web Vitals metrics. Owned and enforced CI/CD pipelines automating builds, tests, linting, and deployments, cutting the release cycle from 3 days to under 2 hours. Collaborated with design and product teams to create high-fidelity prototypes, resulting in a 25% increase in conversions on key landing pages. Authored comprehensive QA test suites maintaining over 90% coverage and eliminating production regressions.

Retail Store Manager at T-Mobile

July 1, 2018 - September 2, 2025

Led a retail team to consistently meet monthly goals through effective meetings and coaching. Developed a flexible employee scheduling system accommodating school commitments. Managed monthly inventory with regular checks to reduce variances. Successfully launched a new store, achieving profitability within six months and attaining top sales in accessories and mobile internet devices by late 2017.

Senior Frontend Engineer & UI/UX Design Lead at Acumedia Corporation

July 1, 2018 - Present

Led and scaled a 5-person distributed frontend team by mentoring junior and mid-level developers, establishing coding standards, and reducing defects by 30% through peer reviews and paired programming. Architected and delivered three high-traffic products using React, Next.js, TypeScript, Vercel, and serverless APIs. Optimized performance metrics significantly, achieving a 4x improvement in Core Web Vitals. Defined and enforced CI/CD pipelines automating builds, tests, and deployments, cutting release cycles from 3 days to under 2 hours. Collaborated with design and product teams to translate user research into high-fidelity prototypes, resulting in a 25% increase in conversions. Owned end-to-end QA with comprehensive test coverage to eliminate regressions.

Retail Store Manager at T-Mobile

July 1, 2018 - September 2, 2025

Led a team to consistently achieve monthly goals through daily and weekly meetings, providing hands-on training and coaching. Developed a flexible scheduling system to accommodate employees' school commitments. Managed monthly inventory counts and reduced variances with regular checks. Successfully launched a new store, achieving profitability within six months and leading sales in accessories and mobile internet devices in the latter half of 2017.