Alan Marquez Escorcia

Senior Fullstack Software Engineer with 6+ years of experience building scalable web applications and distributed systems. Strong experience developing modern frontend applications with React, Next.js, TypeScript and JavaScript, combined with backend development using Python, Django, FastAPI and Node.js. Experienced in designing REST APIs, integrating frontend and backend systems, working with relational and NoSQL databases, and deploying applications using Docker, Kubernetes and cloud platforms such as AWS and GCP.

Also experienced with Java and Spring Boot, giving me a strong background in enterprise backend development, distributed systems and production troubleshooting.

Fullstack Engineer at ZAGA LABS, LLC (2025-03 – Present)

Worked on scalable enterprise applications and platforms for Whip Media, supporting content management and business operations workflows in the media and entertainment industry.

• Developed and maintained fullstack enterprise applications and REST APIs.
• Worked on frontend applications and user-facing workflows.
• Developed backend services and automation solutions using Python.
• Investigated and resolved production incidents across distributed microservices.
• Worked directly with customers and business stakeholders to troubleshoot complex workflow and integration issues.
• Reproduced defects in UAT and production-like environments and identified root causes.
• Supported applications deployed with AWS, Docker and Kubernetes.

Senior Software Engineer at SLABCODE S.A.S (2022-11 – 2025-02)

Worked on enterprise financial and regulatory platforms for ClearGov, developing scalable web applications and backend services with a strong focus on Python and Django.

• Developed backend services and business functionality using Python and Django.
• Designed and implemented REST APIs used by web applications and internal services.
• Worked with React and TypeScript on frontend features and integrations with backend APIs.
• Built data access and business logic using PostgreSQL and MongoDB.
• Investigated production issues and optimized SQL queries to improve application performance.
• Implemented authentication and authorization mechanisms for secure APIs.
• Collaborated with frontend, QA and business teams to diagnose and resolve functional issues.
• Supported applications running in containerized and cloud environments.

Senior Software Engineer at HIBOT CHAT (2022-02 – 2022-11)

Developed a multichannel messaging platform integrating services such as WhatsApp, Facebook and Telegram.

• Developed frontend functionality for web applications.
• Built and maintained REST APIs and backend integrations.
• Worked with Node.js for backend services and integrations.
• Supported distributed applications and production environments.
• Integrated messaging services and asynchronous communication.
• Worked with PostgreSQL and MongoDB.
• Troubleshot production issues across distributed services.

Software Engineer at SOPHOS SOLUTIONS (2020-12 – 2022-02)

Participated in the development of digital marketplaces in Bancolombia's innovation ecosystem, including TU360 platforms.

• Developed web applications and distributed backend services.
• Built frontend functionality and integrated applications with REST APIs.
• Designed and implemented distributed microservices.
• Developed secure REST APIs using authentication and authorization mechanisms.
• Worked with Node.js services as part of distributed application architectures.

Junior Software Engineer at ZEUS TECNOLOGÍA (2018-02 – 2020-12)

Participated in the modernization and maintenance of legacy systems for accounting, inventory and payroll management platforms.

• Migrated legacy applications from Visual Basic to modern web and Java-based solutions.
• Developed backend services supporting accounting and inventory workflows.
• Implemented batch processing solutions.
• Worked with relational databases and enterprise business applications.

Bachelor's Degree in Systems and Computer Engineering – Universidad de Cartagena (2014-01 – 2020-12)