Senior Software Developer focused on modernizing enterprise systems through RESTful microservices, scalable back-end services, and robust CI/CD. Experienced in building and operating platforms with .NET, Node.js, Python, AWS, Kubernetes, Docker, and SQL across critical business workflows.

Esteban Ferarios Castro

Senior Software Developer focused on modernizing enterprise systems through RESTful microservices, scalable back-end services, and robust CI/CD. Experienced in building and operating platforms with .NET, Node.js, Python, AWS, Kubernetes, Docker, and SQL across critical business workflows.

Available to hire

Senior Software Developer focused on modernizing enterprise systems through RESTful microservices, scalable back-end services, and robust CI/CD. Experienced in building and operating platforms with .NET, Node.js, Python, AWS, Kubernetes, Docker, and SQL across critical business workflows.

See more

Experience Level

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

Language

Work Experience

Senior Software Developer at BAC LATAM
January 1, 2024 - Present
Delivered end-to-end modernization of two enterprise systems by redesigning backend services into scalable RESTful microservices. Translated complex business requirements into modular API and SQL solutions to accelerate feature development across multidisciplinary product teams. Improved release quality and frequency by implementing CI/CD pipelines and automated testing practices to reduce production integration failures. Provided technical leadership and aligned engineering efforts with business goals across cross-functional teams.
Platform Owner – Smart Automations at Equifax
January 1, 2021 - January 1, 2024
Owned the enterprise roadmap and governance for UiPath automation platforms supporting LATAM Finance operations. Maintained high availability across multiple business units and managed migrations with zero business disruption. Reduced deployment times by approximately 25% through CI/CD pipeline adoption and ensured reliable operation of automation environments for ongoing finance workflows.
Software Engineering Intern at Hologic
January 1, 2020 - January 1, 2021
Automated materials quality and warehouse workflows using Power Automate, reducing manual effort by 5–10 hours per week and eliminating repetitive data entry and handoff processes. Maintained Qlik Sense KPI dashboards for accurate visibility into team performance. Built a graduation project using Python with a BLE library to read and process real-time device data in JSON format.
Support Software Engineer at Tek Experts
January 1, 2017 - January 1, 2018
Implemented Azure PaaS-based solutions to automate manual processes, improving operational efficiency and service response times. Created comprehensive technical documentation and support manuals to standardize service delivery and support onboarding/escalations. Monitored vendor KPIs, service quality, and customer satisfaction metrics while adapting to emerging technologies within Agile delivery and enterprise support environments.

Education

Lic. Software Engineering at Tecnological Institute of Costa Rica / Escuela Iberoamericana de Postgrado
January 1, 2000 - January 1, 2000
Master. Software Engineering at Escuela Iberoamericana de Postgrado
January 1, 2000 - January 1, 2000
Lic. Software Engineering at Tecnological Institute of Costa Rica (Instituto Tecnológico de Costa Rica)
January 11, 2030 - July 14, 2026
Master. Software Engineering at Escuela Iberoamericana de Postgrado
January 11, 2030 - July 14, 2026

Qualifications

UiPath RPA Developer Certification
January 1, 2023 - July 14, 2026
Azure Fundamentals
January 1, 2024 - July 14, 2026
DevOps Fundamentals
January 1, 2024 - July 14, 2026
Data Engineering Fundamentals
January 1, 2025 - July 14, 2026
UiPath RPA Developer Certification
January 1, 2023 - July 14, 2026
Azure Fundamentals
January 1, 2024 - July 14, 2026
DevOps Fundamentals
January 1, 2024 - July 14, 2026
Data Engineering Fundamentals
January 1, 2025 - July 14, 2026

Industry Experience

Financial Services, Software & Internet, Professional Services