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I'm Esneider, a software engineer with 7+ years of full-stack development experience across Java, Angular, React, Kotlin, GraphQL, and Spring Boot. I've led migrations to GraphQL, improved performance by up to 40%, and delivered scalable enterprise applications for global clients in Agile/Scrum environments. I enjoy collaborating with teams to ship robust software and strive to build maintainable, cloud-ready architectures. Beyond coding, I focus on automated testing, code quality, and mentoring peers. I'm always learning new tools (CI/CD, Docker, Kubernetes) and applying them to real-world problems, especially when it comes to frontend-backend integration and scalable backend services.…I'm Esneider, a software engineer with 7+ years of full-stack development experience across Java, Angular, React, Kotlin, GraphQL, and Spring Boot. I've led migrations to GraphQL, improved performance by up to 40%, and delivered scalable enterprise applications for global clients in Agile/Scrum environments. I enjoy collaborating with teams to ship robust software and strive to build maintainable, cloud-ready architectures. Beyond coding, I focus on automated testing, code quality, and mentoring peers. I'm always learning new tools (CI/CD, Docker, Kubernetes) and applying them to real-world problems, especially when it comes to frontend-backend integration and scalable backend services.

Esneider Marin Zapata

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

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I'm Esneider, a software engineer with 7+ years of full-stack development experience across Java, Angular, React, Kotlin, GraphQL, and Spring Boot. I've led migrations to GraphQL, improved performance by up to 40%, and delivered scalable enterprise applications for global clients in Agile/Scrum environments. I enjoy collaborating with teams to ship robust software and strive to build maintainable, cloud-ready architectures. Beyond coding, I focus on automated testing, code quality, and mentoring peers. I'm always learning new tools (CI/CD, Docker, Kubernetes) and applying them to real-world problems, especially when it comes to frontend-backend integration and scalable backend services.…I'm Esneider, a software engineer with 7+ years of full-stack development experience across Java, Angular, React, Kotlin, GraphQL, and Spring Boot. I've led migrations to GraphQL, improved performance by up to 40%, and delivered scalable enterprise applications for global clients in Agile/Scrum environments. I enjoy collaborating with teams to ship robust software and strive to build maintainable, cloud-ready architectures. Beyond coding, I focus on automated testing, code quality, and mentoring peers. I'm always learning new tools (CI/CD, Docker, Kubernetes) and applying them to real-world problems, especially when it comes to frontend-backend integration and scalable backend services.

Available to hire

I’m Esneider, a software engineer with 7+ years of full-stack development experience across Java, Angular, React, Kotlin, GraphQL, and Spring Boot. I’ve led migrations to GraphQL, improved performance by up to 40%, and delivered scalable enterprise applications for global clients in Agile/Scrum environments. I enjoy collaborating with teams to ship robust software and strive to build maintainable, cloud-ready architectures.

Beyond coding, I focus on automated testing, code quality, and mentoring peers. I’m always learning new tools (CI/CD, Docker, Kubernetes) and applying them to real-world problems, especially when it comes to frontend-backend integration and scalable backend services.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Full Stack Developer at SOPHOS Solutions

July 1, 2021 - Present

Led development using Angular, Kotlin, GraphQL; migrated services to GraphQL; improved performance up to 40%; demonstrated functionalities in sprint demos; collaborated with multiple teams to deliver scalable enterprise features.

Lead Developer at Perfecient Inc

July 1, 2021 - Present

Lead development using Angular, Kotlin and GraphQL; migrated Java services to GraphQL; achieved up to 40% performance improvement; managed deadlines and team delivery; coordinated testing and validation.

Lead Developer

July 1, 2021 - Present

Lead development using Angular, Kotlin, GraphQL; cloud-ready architecture; Agile/Scrum; unit testing and continuous delivery; collaboration with Jenkins and GitLab; GraphQL migration and timely release cycles.

Software Developer at Perfecient Inc

June 30, 2021 - October 7, 2025

Modernized software for a US-based client; migrated from JSP/Dreamweaver to Angular, Kotlin, GraphQL and Hibernate; delivered MVP; improved performance and scalability.

Back-End Developer and Testing Analyst at SOPHOS Solutions

June 1, 2021 - October 7, 2025

Developed backend in Java and implemented automated tests with Serenity, Selenium, Protractor, and Selenium; reduced manual QA effort and increased test reliability; contributed to CI/CD processes and cloud-ready pipelines.

Software Developer at Perficient Inc

June 1, 2021 - October 7, 2025

Modernized software for a US-based client; updated from JSP/Dreamweaver to Angular, Java, Hibernate and SQL; delivered a modern app with improved performance and scalability; coordinated testing/validation and ensured code quality; aligned with project milestones.

Backend Developer and Testing Analyst at SOPHOS Solutions

February 1, 2020 - October 7, 2025

Backend components in Java; automated tests with Serenity, Selenium, Protractor and Selenium; led team milestones and requirements; contributed to front-end components with Angular; delivered MVP to client.

Software Developer at IASS Software

February 1, 2020 - October 7, 2025

Led team efforts, conducted client meetings; defined requirements and goals for SUR A software; discussed milestones, architecture, business rules and roles; studied effort estimates to determine development timelines; frontend/backend components using Angular/Java/Spring Boot.

Software Developer at Universidad de Medellín

June 1, 2019 - October 7, 2025

Software development for the university website; worked with Oracle and MySQL databases, Java backend, Angular 8, JavaScript, and HTML; authored test cases; worked in Agile teams; also freelanced on a Student Registration App using Java, Angular, and MySQL for Universidad de Medellín.

Backend Developer and Testing Analyst at Sophos Solutions

June 1, 2019 - October 7, 2025

Developed backend components in Java; implemented automated tests with Serenity, Selenium, Protractor; Selenium for UI tests; reduced manual QA effort and increased test reliability.

Software Developer at Universidad de Medellín

February 1, 2019 - October 7, 2025

Software development for the university website using Oracle and MySQL databases; Java backend; Angular 8 and JavaScript; HTML; test cases; Scrum. Also freelanced on development of student registration app using Java, Angular and MySQL database management for Universidad de Medellín.

Software Developer at Universidad de Medellín

February 1, 2019 - October 7, 2025

Software development for the university website using Oracle and MySQL, Java backend, Angular 8 and JavaScript; agile Scrum; created test cases; contributed to university frontend/backend features.