Dedicated and skilled professional with solid experience in web development using stacks such as MERN and MEAN, as well as database management. Specialized in Microsoft SQL Server, JavaScript, TypeScript, Angular, React, ASP.NET. Proficient in Testing, with a focus on executing functional and regression tests, issue reporting, and production deployment.

Samuel Diaz

Dedicated and skilled professional with solid experience in web development using stacks such as MERN and MEAN, as well as database management. Specialized in Microsoft SQL Server, JavaScript, TypeScript, Angular, React, ASP.NET. Proficient in Testing, with a focus on executing functional and regression tests, issue reporting, and production deployment.

Available to hire

Dedicated and skilled professional with solid experience in web development using
stacks such as MERN and MEAN, as well as database management. Specialized in
Microsoft SQL Server, JavaScript, TypeScript, Angular, React, ASP.NET. Proficient
in Testing, with a focus on executing functional and regression tests, issue
reporting, and production deployment.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

Spanish; Castilian
Fluent
English
Advanced
French
Intermediate

Work Experience

Web Developer | Tester at Tracklog
January 1, 2023 - September 17, 2025
Responsible for overseeing and maintaining the company's technological infrastructure. Implemented an equipment cloning solution that reduced deployment time by 25%. Gathered requirements and provided solutions for issues related to test data. Designed test plans, created test cases, executed tests, and prepared closure reports. Designed and implemented responsive user interfaces using HTML, SASS, Java (Spring Boot), and Angular. Developed server-side logic and APIs using ASP.NET and C#. Conducted thorough testing and debugging. Implemented real-time processing with Apache Kafka. Performed code reviews and generated synthetic data with GenRocket. Collaborated with UI/UX designers to translate designs into functional interfaces. Implemented security best practices to prevent vulnerabilities such as SQL injection and XSS. Led a team of 5 technicians, increasing efficiency by 20%. Developed and oversaw security policies, reducing vulnerabilities by 30%.
SQL Server Database Administrator at Tracklog
January 1, 2019 - September 17, 2025
Responsible for ensuring the integrity and efficiency of the company's networks. Designed and maintained database structures, ensuring normalization and optimization through query tuning, indexing, and configuration management. Established robust backup and recovery strategies. Managed user access, permissions, and security policies. Possess solid experience in design, implementation, and maintenance of SQL databases. Optimized performance through query tuning, efficient index usage, and configuration parameter implementation. Implemented backup and recovery strategies, focusing on minimizing downtime and ensuring data integrity. Administered security, controlling access, managing accounts, and protecting sensitive data. Proactively monitored and maintained systems to ensure high availability and incident response. Worked with the IT team, achieving a 35% reduction in incidents. Managed VPN connections for over 500 employees, ensuring secure remote access.

Education

Bachelor's Degree in Chemical Engineering at Universidad de los Andes
January 1, 2011 - January 1, 2016
Master in Full-Stack Development at 4Geeks Academy
January 1, 2025 - September 17, 2025

Qualifications

SJ Agile Consulting Certification
January 1, 2025 - September 17, 2025

Industry Experience

Software & Internet, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
See more

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