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Jerson Pabillo
🇵🇭Philippines (UTC+08:00)
Created AtUpstaffer since July, 2026
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Jerson Pabillo — Senior Full-Stack Engineer and Agentic AI specialist

Expertise in Full Stack Web (9.5 yr.), AI and Machine Learning (4.5 yr.).

 Last verified on July, 2026

AI Tools & Assistants

Claude
Claude
2 yr.
Cursor
2 yr.

Bio Summary

  • Senior Full-Stack Engineer with 10+ years designing and deploying scalable SaaS platforms and agentic AI systems using Python, TypeScript, Node.js, and React.
  • Expertise in building multi-step autonomous workflows, tool-calling agents, RAG pipelines, and LLM evaluation harnesses leveraging LangChain, OpenAI, Claude APIs, and vector search technologies.
  • Holds a Bachelor of Computer Science degree, with extensive experience in software development lifecycle, prompt engineering, agent orchestration, and advanced AI-driven enterprise solutions.

Technical Skills

Programming Languages Java, JavaScript, PHP, Python, TypeScript
AI & Machine Learning AI-agents, Claude, LangChain, LLM, n8n, OpenAI
JavaScript Frameworks AngularJS, Express, jQuery, Node.js, React, Vue.js
C++ Libraries and Tools C/C++/C#
Python Frameworks Django REST framework, FastAPI, Flask
PHP Frameworks Laravel
Python Libraries and Tools pytest
Java Frameworks Spring Boot
Databases & Management Systems / ORM MongoDB, MySQL, PostgreSQL, Redis, Sphinx
UI Frameworks, Libraries, and Browsers Ant Design, Bootstrap 4, CSS, HTML, jQuery, Tailwind CSS
Cloud Platforms, Services & Computing AWS
Industry Domain Experience Embedded
Deployment, CI/CD & Administration CI/CD
SDK / API and Integrations Collections API, FastAPI, GraphQL, RESTful API
Third Party Tools / IDEs / SDK / Services Cursor
Virtualization, Containers and Orchestration Docker
Version Control Github Actions
Operating Systems Linux
Web/App Servers, Middleware Nginx
Blockchain and Decentralized Software Optimism
QA, Test Automation, Security pytest
Platforms WordPress
Other Technical Skills Claude Code, Illustration and icons, Unreal Engine

Work Experience

Agentic AI / LLM Engineer & Full-Stack Developer - Azeus Systems (Agentic AI and LLM powered SaaS products for corporate governance and enterprise knowledge search)

Duration: May 2024 – Apr 2026
Summary:
  • Developed agentic AI and large language model powered SaaS platforms focused on corporate governance, board meetings, document processing, and enterprise knowledge search
  • These products automate complex multi-step workflows and provide advanced document retrieval and summarization capabilities for enterprise clients
Responsibilities:
  • Architected tool-calling agents for autonomous multi-step governance workflows across document-heavy enterprise processes.
  • Built agent orchestration logic to plan, route, and recover from failed tool calls, improving task completion reliability.
  • Designed and implemented RAG pipelines with embeddings, vector search, and retrieval filtering including source previewing.
  • Developed over forty production API endpoints handling data ingestion, metadata indexing, access control, logging, and asynchronous jobs.
  • Established LLM evaluation harness with curated datasets and prompt libraries to measure output accuracy and hallucination rates.
  • Engineered production safeguards such as retry strategies, response validation, streaming output, and graceful fallbacks.
  • Reduced average document processing time from nine to under four minutes through batching, caching, and task coordination.
  • Built reviewer-facing UIs for confidence scoring, workflow assignment, document previewing, and agent configuration.
  • Modularized legacy services into decoupled domain services for stable delivery of new AI capabilities.
  • Led rapid delivery using Claude Code and Cursor while managing architecture, deployment, and system decisions.
Technologies: Python, FastAPI, Node.js, TypeScript, React, PostgreSQL, MongoDB, Redis, LangChain, OpenAI API, Claude, vector databases, Docker, AWS, GitHub Actions, GraphQL

Backend Developer & LLM Engineer - Accenture (Cloud-native backend services and AI automation tools for digital transformation)

Duration: Feb 2022 – Apr 2024
Summary:
  • Delivered cloud-native backend services and early AI automation tools supporting digital transformation and application modernization programs for enterprise clients
  • Focused on workflow automation, AI-driven business platforms, and integration of LLM capabilities
Responsibilities:
  • Developed backend services in Python and Node.js powering enterprise modernization and AI-driven platforms.
  • Created REST APIs for customer records, workflow events, document payloads, and integration data.
  • Delivered proof-of-concept LLM automation for document Q&A, email summarization, content categorization, and knowledge retrieval.
  • Designed and optimized PostgreSQL and MySQL schemas, significantly reducing query times.
  • Integrated OpenAI API workflows with reusable prompt patterns and structured output handling.
  • Automated testing and deployment using Docker and GitHub Actions across multiple environments.
  • Collaborated with frontend engineers to define API contracts, error handling, pagination, and response formats.
Technologies: Python, Node.js, Spring Boot, TypeScript, PostgreSQL, MySQL, OpenAI API, Docker, GitHub Actions

Python Backend Engineer - CGI (Backend services and integrations for enterprise consulting and cloud migration)

Duration: Mar 2020 – Feb 2022
Summary:
  • Built backend services, APIs, and integrations to support large-scale enterprise consulting, systems integration, and cloud migration projects
  • Delivered scalable and performant backend solutions for various business needs
Responsibilities:
  • Developed backend services using Python frameworks Django, Flask, and FastAPI.
  • Implemented REST APIs for user management, reporting, notifications, file processing, and third-party integrations.
  • Optimized database queries and indexing to achieve sub-500 millisecond response times on high-traffic endpoints.
  • Collaborated with business analysts and QA teams to translate requirements into production-ready functionality.
Technologies: Python, Django, Flask, FastAPI, PostgreSQL, MySQL, Redis, REST APIs, Docker, Linux, Nginx, Git, Pytest

Full Stack Developer - Shore360 (Custom web applications, customer portals, CRM workflows, and business automation tools)

Duration: Sep 2014 – Jan 2019
Summary:
  • Delivered fully integrated custom web applications and business automation tools for offshore client teams
  • Projects included CRM workflows, admin portals, reporting dashboards, and customer-facing websites to streamline operations
Responsibilities:
  • Developed bespoke business tools replacing spreadsheet-driven operations with searchable dashboards.
  • Designed responsive front-end interfaces and data entry forms to improve operational efficiency.
  • Integrated third-party services such as payments, email, and mapping to automate client workflows.
Technologies: PHP, Laravel, JavaScript, React, Vue.js, jQuery, MySQL, HTML, CSS, Bootstrap, REST APIs, WordPress, Git

Education

  • Bachelor of Computer Science
    Taylor’s University | Kuala Lumpur, Malaysia
    2014

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