Available to hire
Hi, I’m Sebastian Hernandez, an IT and Digital Business graduate with hands-on experience building enterprise systems in real corporate environments. I specialize in backend development, automated document workflows, and structured data management to improve efficiency and data quality.\n\nI’m comfortable taking initiative or collaborating with cross-functional teams to deliver scalable solutions, maintain audit trails, and support regulatory compliance. I’m excited about enterprise architecture, cybersecurity operations, and data-driven decision making.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Beginner
Beginner
Language
Spanish; Castilian
Fluent
English
Fluent
Work Experience
Full-Stack Developer — Professional Practice Programme at None (Freelancer)
December 31, 2023 - December 31, 2024Built a backend system to automatically receive, classify, and process corporate emails, handling around 18 emails per day with peaks above 50. Designed a document classification framework with traceable identifiers to maintain full audit trails and meet regulatory requirements. Built data validation pipelines to enforce required fields and business rules before inserting records into the database, reducing manual corrections to near zero. Extracted fiscal, transactional, and entity data from JSON electronic invoicing documents into a normalised PostgreSQL schema. Automated PDF fiscal document generation from structured data, in full compliance with El Salvador's electronic invoicing (DTE) format. Reduced manual processing time in the distribution centre's document workflows, improved data consistency, and strengthened the team's audit readiness.
Full-Stack Developer at DISAL (Distribuidora Salvadoreña S.A. de C.V.)
December 30, 2023 - December 30, 2024Built a backend system to automatically receive, classify, and process corporate emails (roughly 18 emails per day with peaks above 50). Designed a document classification framework with traceable identifiers (DTE-1, DTE-2, etc.) to maintain full audit trails and regulatory compliance. Built data validation pipelines to enforce required fields and business rules before inserting records into PostgreSQL, reducing manual corrections to near zero. Extracted fiscal, transactional, and entity data from JSON electronic invoicing documents into a normalised PostgreSQL schema. Automated PDF fiscal document generation from structured data in full compliance with El Salvador's electronic invoicing (DTE) format. Reduced manual processing time in the distribution centre's document workflows, improved data consistency, and strengthened audit readiness.
Education
Bachelor's Degree at Universidad Anáhuac Mayab
January 1, 2020 - January 1, 2025High School Diploma & IB Diploma at Colegio Lamatepec
January 1, 2019 - January 1, 2019Bachelor's Degree in Information Technology & Digital Business at Universidad Anáhuac Mayab
January 1, 2020 - January 1, 2025High School Diploma & IB Diploma at Colegio Lamatepec, El Salvador
January 11, 2030 - January 1, 2019Qualifications
Security Operations Center (SOC) — Cisco
January 11, 2030 - March 10, 2026Artificial Intelligence with Machine Learning in Java — Oracle
January 11, 2030 - March 10, 2026SAP Professional Fundamentals — SAP
January 11, 2030 - March 10, 2026Agile Project Management — Google
January 11, 2030 - March 10, 2026Introduction to NoSQL Databases — IBM
January 11, 2030 - March 10, 2026Database Management Essentials — University of Colorado
January 11, 2030 - March 10, 2026HCIA Datacom — Huawei / Universidad Anáhuac Mayab
January 11, 2030 - March 10, 2026CCNA: Switching, Routing & Wireless Essentials — Cisco
January 11, 2030 - March 10, 2026CCNA: Enterprise Networking, Security & Automation — Cisco
January 11, 2030 - March 10, 2026Data Structures in Python — Universidad Austral
January 11, 2030 - March 10, 2026Security Operations Center (SOC) — Cisco
January 1, 2024 - April 8, 2026Artificial Intelligence with Machine Learning in Java — Oracle
January 1, 2024 - April 8, 2026SAP Professional Fundamentals — SAP
January 1, 2023 - April 8, 2026Agile Project Management — Google
January 1, 2023 - April 8, 2026Introduction to NoSQL Databases — IBM
January 1, 2023 - April 8, 2026Database Management Essentials — University of Colorado
January 1, 2022 - April 8, 2026HCIA Datacom — Huawei / Universidad Anáhuac Mayab
January 1, 2022 - April 8, 2026CCNA: Switching, Routing & Wireless Essentials — Cisco
January 1, 2022 - April 8, 2026CCNA: Enterprise Networking, Security & Automation — Cisco
January 1, 2022 - April 8, 2026Data Structures in Python — Universidad Austral
January 1, 2021 - April 8, 2026Industry Experience
Software & Internet, Professional Services, Education, Computers & Electronics
Personal page.
Includes some projects
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