Flagship project
JetSight
Architecture, the RLS finding, and roadmap reasoning for the project.
Python · Data · AI/LLM engineering
Jethro Arciaga
Python and data engineer building scalable pipelines, automated scraping and extraction systems, and AWS integrations — specialising in AI-native workflows: LLM classification, structured extraction, and systematic prompt evaluation.
Open to remote and visa-sponsored roles.
Muntinlupa, Philippines
About
Python, data, and AI-native workflows.
I build scalable pipelines, automated scraping and extraction systems, and AWS integrations — specialising in AI-native workflows: LLM classification, structured extraction, and systematic prompt evaluation.
My experience spans Python development, data engineering, full-stack delivery, and frontend work across GovConnex, CreativeJourneysPH, Penbrothers, and Indra Philippines.
Credentials
- Meta Front-End Developer · Aug 2024
- Google IT Automation with Python · Dec 2020
- Google AI Essentials · Sept 2024
- AWS Cloud Practitioner Essentials · Apr 2024
- Web Application Technologies and Django · Jan 2021
Education
- BS Information Technology · Pamantasan ng Lungsod ng Muntinlupa
- College Degree in Multimedia Arts · CIIT College of Arts and Technology
Work
Systems, products, and the reasoning behind them.
Extraction, ingestion, full-stack delivery, and backend systems across public products and capability-level work.
View repository ↗
GovConnex · Python Developer / Data Engineer · 19 Aug 2025 — early Aug 2026
AI-native extraction at scale
PDF mining of unstructured text and tabular layouts; Live-Transcript low-latency streaming with concurrent closed-caption capture; Instant-Transcript on-demand URL-driven video extraction; an async email pipeline using Claude for extraction and classification; Promptfoo benchmarking and regression prevention; and MCP servers with Copilot for delivery velocity.
AWS · Python · TypeScript · Node.js · Scrapy · Pytest · Datadog · CI/CD
Penbrothers · Python Developer / Data Engineer · 4 Dec 2023 — Aug 2025
ETL for OpenArchitects
ETL pipelines for OpenArchitects: secure client-data integration via API and Selenium, transformed to spec and landed in Azure Blob Storage.
Azure Blob Storage · Selenium · BeautifulSoup · Slack · Postman · Rundeck · Docker · GitHub Actions · CI/CD · Pytest · TDD
Full Stack Developer (freelance) · 2025
CreativeJourneysPH
Built and maintains creativejourneysph.com.
React · Python/Django · Vercel · Google Cloud · SquareSpace · AWS EC2 · GitHub Actions · Pytest · TDD
Indra Philippines · Python Developer / Analyst · 2 Aug 2021 — 22 Sep 2023
peccbm.ph
Backend for the client's award-winning peccbm.ph: AWS Lambda, APIs, Cognito permissions, Neo4j graph database, EventBridge report scheduling, and S3.
Lambda · API Gateway · Cognito · S3 · EC2 · Boto3 · Serverless · Neo4j · SharePoint · BitBucket
Writing
Notes from building data systems.
Technical threads on infrastructure failures, model choices, and the boundaries worth keeping.
Aug 2026
Four ways connection pooling broke my data pipeline
IPv6-only Supabase hosts, server-side prepared statements under PgBouncer, libpq pipeline mode, and an unescaped @ in a generated password.
Featuredpostgrespgbouncerpythondebugginginfrastructure
Aug 2026
Why Claude Haiku, not a bigger model
Choosing the cheapest model that clears the accuracy bar.
llmclaude+2
Aug 2026
Direct Postgres over the BaaS SDK
Extending the same pooling and schema knowledge into a second runtime.
postgressupabase+1
All writing →Contact
A clear route to get in touch.
For remote or visa-sponsored roles, email or connect on LinkedIn.
Open to remote and visa-sponsored roles.
Muntinlupa, Philippines