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Hi, I’m Carlos Medina, a dedicated Full Stack Developer with 7+ years of experience building scalable web applications. I specialize in React, Next.js, Node.js, and TypeScript, delivering fintech, e-commerce, and AI-driven automation solutions. I’ve modernized 12–15 legacy microservices, improved backend efficiency, and orchestrated containerized deployments on AWS to cut costs and speed up releases. I enjoy collaborating with cross-functional teams, designing robust architectures, and mentoring peers to raise code quality and performance. I’m passionate about observability, automated testing, and delivering reliable systems with a focus on security and user experience.…Hi, I’m Carlos Medina, a dedicated Full Stack Developer with 7+ years of experience building scalable web applications. I specialize in React, Next.js, Node.js, and TypeScript, delivering fintech, e-commerce, and AI-driven automation solutions. I’ve modernized 12–15 legacy microservices, improved backend efficiency, and orchestrated containerized deployments on AWS to cut costs and speed up releases. I enjoy collaborating with cross-functional teams, designing robust architectures, and mentoring peers to raise code quality and performance. I’m passionate about observability, automated testing, and delivering reliable systems with a focus on security and user experience.

Carlos Medina

Full Stack Developer, Web Developer, Back-End Developer, +2

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Hi, I’m Carlos Medina, a dedicated Full Stack Developer with 7+ years of experience building scalable web applications. I specialize in React, Next.js, Node.js, and TypeScript, delivering fintech, e-commerce, and AI-driven automation solutions. I’ve modernized 12–15 legacy microservices, improved backend efficiency, and orchestrated containerized deployments on AWS to cut costs and speed up releases. I enjoy collaborating with cross-functional teams, designing robust architectures, and mentoring peers to raise code quality and performance. I’m passionate about observability, automated testing, and delivering reliable systems with a focus on security and user experience.…Hi, I’m Carlos Medina, a dedicated Full Stack Developer with 7+ years of experience building scalable web applications. I specialize in React, Next.js, Node.js, and TypeScript, delivering fintech, e-commerce, and AI-driven automation solutions. I’ve modernized 12–15 legacy microservices, improved backend efficiency, and orchestrated containerized deployments on AWS to cut costs and speed up releases. I enjoy collaborating with cross-functional teams, designing robust architectures, and mentoring peers to raise code quality and performance. I’m passionate about observability, automated testing, and delivering reliable systems with a focus on security and user experience.

Available to hire

Hi, I’m Carlos Medina, a dedicated Full Stack Developer with 7+ years of experience building scalable web applications. I specialize in React, Next.js, Node.js, and TypeScript, delivering fintech, e-commerce, and AI-driven automation solutions. I’ve modernized 12–15 legacy microservices, improved backend efficiency, and orchestrated containerized deployments on AWS to cut costs and speed up releases.

I enjoy collaborating with cross-functional teams, designing robust architectures, and mentoring peers to raise code quality and performance. I’m passionate about observability, automated testing, and delivering reliable systems with a focus on security and user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Full Stack Developer at EPAM Systems

January 2, 2024 - Present

Built and optimized identity-verification and documentation-automation platforms using React, Next.js, Node.js, and TypeScript within a microservices ecosystem, handling 10k+ monthly verification workflows. Architected authentication pipelines using JWT, OAuth 2, and biometrics, increasing validation speed by 30% and reducing authentication failures by 15%. Developed REST and GraphQL APIs on AWS (Lambda, S3, RDS), achieving 99.9% uptime and enabling ~20% throughput gains. Automated CI/CD pipelines with GitHub Actions and Docker, enabling zero-downtime deployments and 25% more release stability. Implemented observability with CloudWatch, Prometheus, and Grafana, cutting incident detection time by 40% and MTTR by 30%. Collaborated with UI/UX teams and enforced WCAG 2.1 accessibility, raising accessibility scores by 20% and smoothing key user flows. Mentored junior engineers in TypeScript, clean architecture, and TDD, accelerating onboarding by 30% and improving overall code quality.

Full Stack Developer at Simbo

January 1, 2020 - December 1, 2023

Delivered platform enhancements for SMB and enterprise customers using React, Next.js, Node.js, and PostgreSQL, increasing active user engagement by 15–20%. Modernized legacy microservices with GraphQL federation, reducing API latency by 25% and improving cross-service interoperability. Boosted frontend performance by ~40% through Webpack optimizations, lazy loading, and dynamic imports, raising Lighthouse scores and expediting onboarding. Implemented RBAC and JWT-based sessions to strengthen security and reduce unauthorized-access incidents. Built real-time dashboards and integrated error tracking to improve system resilience and incident response times. Mentored junior developers in TypeScript, clean architecture, and TDD, accelerating onboarding by about 30%.

Frontend Developer at Valpac Toll Manufacturing

January 1, 2022 - December 1, 2022

Architected and delivered a modern, responsive website and product platform for Valpac, highlighting adhesive manufacturing capabilities and streamlining access to technical data. Built product and resources sections, including V-TAC dispersions, cold-seal adhesives, and SDS/downloads to drive qualified leads and improve user experience.

Frontend Developer at Lemonade Full-funnel Marketing Agency

January 1, 2019 - June 1, 2019

Collaborated with the Lemonade.io team to design and execute full-funnel marketing strategies, including paid social, Google Ads, and CRO, servicing clients from SMEs to global brands. Leveraged AI-driven automation and analytics to optimize ad creativity and delivery, increasing ROI and client reach. Built engaging landing pages and assets to accelerate conversions and deliver measurable results.

Full Stack Developer at Epam

January 1, 2024 - Present

Architected a scalable backend identity verification platform using React, Next.js, Node.js and TypeScript within a microservice ecosystem, supporting 10,000+ monthly workflows. Innovated JWT, OAuth2, and biometric authentication pipelines, improving validations speed by 30%. Integrated AI-driven document analysis and anomaly detection workflows, reducing manual review rates by 25%. Deployed and scaled REST and GraphQL APIs on AWS Lambda, API Gateway, S3, and RDS, increasing data throughput by 20% and ensuring 99.9% uptime. Implemented observability with CloudWatch, Prometheus, and Grafana, reducing incident detection time by 40%. Reinforced ownership across security-critical and AI-enabled workflows, influencing 5+ architecture decisions and platform standards.