AVAILABLE
REMOTE · FREELANCE
US EASTERN ALIGNED
OPERATOR FRG-01 · DATA ENGINEERING

HIRE THE
OPERATOR

Freelance data engineering: ETL pipelines, analytics warehouses, RAG systems, and AI agent observability. Three shipped systems, documented from first commit. English and Spanish.

VIEW CODEX
3
SYSTEMS SHIPPED
92
TESTS GREEN
19
CONTAINERS
// CORE STACK
Python PostgreSQL Apache Airflow FastAPI ChromaDB Redpanda RisingWave Docker Kubernetes Apache Iceberg Grafana

// SERVICE MODULES · 04 AVAILABLE

AVAILABLE
ETL & PIPELINES
Batch ingestion, idempotent transformation, structured warehouse loading. Airflow-orchestrated, tested from day one. No black boxes handed off.
Python Airflow PostgreSQL ETL design
AVAILABLE
ANALYTICS WAREHOUSE
Self-hosted Amplitude-class analytics on PostgreSQL. Star schema, funnels, cohort retention, A/B testing with Wilson confidence intervals. Grafana included. Zero SaaS cost.
PostgreSQL 16 Grafana FastAPI
AVAILABLE
RAG PIPELINES
Semantic search over document collections. Local embedding, ChromaDB indexing, sub-2s query. No OpenAI dependency, fully self-hosted. Multilingual.
ChromaDB sentence-transformers
AVAILABLE
AI AGENT OBS.
Real-time observability and circuit breaking for AI pipelines. Detects runaway behaviour in <500ms, halts in <600ms via streaming SQL.
Redpanda RisingWave Kubernetes

// Not available for: agency reselling. If you are an agency hiring on behalf of a client, this is not the right engagement. NDA available on request. References available on request.

// ENGAGEMENT PROCESS

HOW IT WORKS

No agencies, no middlemen. You describe the problem, we scope it together, I build it with full documentation, and you own it completely.

01
// STEP_01 — DISCOVERY
You describe the problem and your current stack. I ask the right questions to understand the constraints before proposing anything.
02
// STEP_02 — PROPOSAL
A written document: scope, deliverables, milestones, timeline, and payment schedule (hourly or milestone-based). Delivered async, no surprises.
03
// STEP_03 — BUILD
Iterative delivery with weekly written updates and a link to the latest commit. Every system ships test-driven with CI and a full build log.
04
// STEP_04 — DELIVERY
Complete documentation, deployment guide, and a recorded walkthrough. Fully portable. You own everything from the first line of code.

// FREQUENTLY ASKED

Do you work with existing codebases or only greenfield projects?+
Both. Greenfield builds and extending or fixing existing pipelines and data infrastructure. Send the repo context in your brief.
What is the minimum project size you take on?+
No hard minimum. As small as a single database design or a one-table pipeline. If the problem is real, the size does not matter.
Can you work within my timezone?+
Yes. Based in Venezuela, aligned with US Eastern Time. Flexible for calls across US, Europe, and Latin America.
Do you have references or past client work to show?+
References available on request. Three production systems are public and documented at frogwebp.com/codex. The build logs, architecture decisions, and test suites are the work.
Do you sign NDAs?+
Yes, always. Data is sensitive and deserves to be treated that way. NDA available before any details are shared.
How long until I hear back after contacting you?+
Within 24–48 hours, usually the same day. You will receive an automatic confirmation when your request is submitted.
// READY TO BUILD SOMETHING?
SEND THE BRIEF
Describe the problem. No intake form. No agency. Direct line.
VIEW THE SYSTEMS FIRST
linkedin.com/in/frogwebp · github.com/frogwebp · English & Spanish