Ralph Kenneth Sonio

Backend-focused software engineer building serverless, cloud-native systems on AWS (Lambda, DynamoDB, SQS, API Gateway, CloudFormation) across TypeScript, Node.js, Java/Spring Boot, Python, and Rust.

Backend Developer

Intern under direct CTO and Senior Engineer mentorship at IOL Inc., with concurrent Quality Assurance experience across 5+ production systems. Maintains 6 live, production-deployed portfolio projects running on zero-cost infrastructure covering event-driven architecture, single-table DynamoDB design, idempotent CI/CD pipelines, and ISO/IEC 25010-aligned testing.

Backend Developer Intern - IOL Inc. - Baguio City, Philippines

(2026-01 - 2026-05)

• Awarded a full-time return offer (Junior Backend Developer / QA) upon internship completion, demonstrating immediate value through the successful delivery and internal adoption of production systems.
• Completed an intensive mentorship program led directly by the CTO and Senior Backend Engineers, covering production-grade coding standards, microservices architecture, and AWS serverless infrastructure (AWS Lambda, DynamoDB, CloudFormation, Serverless Framework).
• Designed, built, and presented a full-stack Service Ticket System as a CTO-assigned capstone project, the system was reviewed and flagged for adoption by the engineering team to track and triage internal defects.
• Delivered solo technical presentations of system designs to the CTO, Senior Backend Engineers, and Frontend Lead, receiving repeated commendations for accelerated progression and advanced grasp of cloud-native concepts.
• Studied and applied best practices for IAM/KMS configuration, event-driven design with SQS, and idempotent CI/CD deployment workflows.

Quality Assurance Tester (Concurrent Role) - IOL Inc. - Baguio City, Philippines

(2026-01 - 2026-05)

• Performed manual QA testing across 5+ internal company systems — identifying defects, verifying fixes, and validating release stability before production deployment.
• Documented reproducible bug reports and coordinated resolution cycles directly with backend and frontend developers, reducing turnaround time on regression issues.
• Assisted with project management activities including ticket triage, status tracking, and sprint follow-ups.
• Rotated into QA work between backend training tasks to maintain throughput and broaden cross-functional exposure to the company's product suite.

Customer Service Representative - Concentrix Baguio - Baguio City, Philippines

(2021-10 - 2022-04)

• Mediated disputes between marketplace sellers and buyers, investigating evidence and rendering decisions within strict SLA windows.
• Built strong communication, escalation handling, and root-cause analysis skills transferable to engineering incident response.

Bachelor of Science - Information Technology - STI College Baguio (2026-07)