Dan Gabriel Lettac
Dan Gabriel Lettac

Software Engineer | Consultant

Open to offers · Member since 3 Sep 2026
Message
Location
Manila, Philippines
Desired salary
Confidential
Work preference
Remote Only / Part Time, Contract, Freelance, Temporary
Experience level
Junior

About

Professional summary

I am a Computer Engineering graduate with experience in customer support, production support, software engineering, and data-driven process improvement.

I previously managed high-volume data streams in a regulated support environment, using enterprise CMS and diagnostic tools to identify and mitigate platform and operational risks while maintaining strong quality and KPI performance.

My technical background includes backend development with .NET C#, RESTful APIs, SQL databases, Python, Java, JavaScript, React, and cloud platforms such as AWS and Azure.

I have experience validating banking systems, investigating production anomalies, documenting system architecture, and building automated reporting and data visualization workflows using the Microsoft Power Platform.

I have also led and contributed to public-service and AI projects, including a localized government service directory and a CNN-based emotion recognition application with a companion mobile app and AI chatbot.

I work effectively in Agile/Scrum, Waterfall, and DevOps-oriented environments, combining technical problem-solving, quality assurance, collaboration, and clear documentation.

Skills

29 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Associate - Customer Support Tech Mahindra

I manage real-time, high-volume data streams in a regulated environment to help mitigate digital and operational risks. I consistently maintain a QA accuracy rating above 92% while exceeding daily KPI requirements.

I use enterprise CMS and diagnostic tools to proactively identify, isolate, and mitigate sensitive platform risks. My work requires strong attention to detail, policy compliance, and effective handling of high-volume operational workflows.

Production Support Intern EastWest Banking Corporation

I validated core banking infrastructure across web, mobile, and transaction workflows as part of the Shared Testing Services unit. I supported testing activities for enterprise systems and helped identify production-level platform anomalies.

I engineered internal report-generation workflows and interactive data visualization solutions using the Microsoft Power Platform, reducing manual data compilation effort. I also collaborated with cross-functional engineering teams and documented enterprise system architecture.

Software Engineer Intern Dewise Solutions Philippines Inc.

I contributed to backend development for the DevEx API using .NET C#. I implemented and tested CRUD operations and verified endpoint functionality and operational performance.

I participated in Scrum sprints, daily virtual stand-ups, project status reporting, team presentations, and deployment workflow evaluation. This experience strengthened my understanding of collaborative software delivery practices.

Core Contributor BetterTaytay (BetterGovPH Initiative)

I contributed to a localized municipal deployment of the BetterGov open-source ecosystem through BetterLB. The initiative established a centralized public service directory for Taytay, Rizal.

I restructured configuration layers and environment schemas using a modular directory matrix to convert regional administrative data into secure public-facing portal assets. I also audited data integrity and validated localized translation schemas in JavaScript- and Python-based processing pipelines.

Lead Researcher Project EYES - Undergraduate Thesis

I led a technical development team through a Waterfall SDLC process to develop and deploy a CNN-based emotion recognition system for children with Down syndrome. The project also included a companion mobile application with an AI-powered chatbot for expert-verified guidance.

The system achieved more than 85% recognition accuracy and a 70% usability score through expert evaluation panels and real-world testing at Gen. Tiburcio Elementary School in Valenzuela City. I coordinated development, evaluation, and deployment activities across the project lifecycle.

Education

Learning history

Polytechnic University of the Philippines

Bachelor of Science, Computer Engineering, System Development

Graduated with a Bachelor of Science in Computer Engineering, specializing in System Development. Achieved a 1.476 GWA and was recognized as a President's Lister.

Siena College of Taytay

Senior High School, STEM Strand

Completed the STEM Strand and graduated as Salutatorian.

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