pablo arias

I’m a Senior Python Backend Developer and Data Engineer with over 20 years in technology, specializing in critical systems for the banking and telecom industries. My work blends backend engineering with data integration—building reliable Python/PHP/SQL services, and turning messy inputs into dependable ETL/ELT pipelines that teams can trust.

At Tata Consultancy Services, I worked in an Agile environment to improve development best practices and architectural decisions. I automated networking incident resolution with pure Python to reduce manual intervention, designed and maintained ETL pipelines for automated workflows and reporting, and integrated Splunk for log monitoring and event correlation across distributed infrastructure.

At Metrotel, I started in R&D and transitioned into backend development for telecom systems using Python and PHP on a proprietary framework. I built reporting, ETL, and automation modules, delivered ETL processes on AWS integrating multiple telecom sources, and developed microservices and internal apps with Flask and FastAPI—while also contributing to business definitions for the telephony service and supporting modernization toward microservices.

I care about collaborative engineering: I share knowledge, document clearly, and mentor junior developers to strengthen team performance. I enjoy working closely with both technical and business stakeholders, and I’m motivated by roles where I can deliver robust backend systems and measurable data-driven outcomes.