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Jesus Ziegler

@jesusziegler

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Software engineer at Lumentrack who cut dashboard latency by 40% and shipped 20+ feature releases.

Venezuela

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What I'm looking for

I'm open to global remote opportunities.

At Lumentrack, I optimized PostgreSQL schemas and REST API endpoints for a production analytics dashboard, reducing page load latency by 40%. I also shipped 20+ feature releases and legacy-module fixes in React and JavaScript.

For the Juan Germán Roscio Mayoralty, I spearheaded a workflow automation platform that digitized 150+ administrative procedures and was used daily by 35 municipal employees. At Sintelix, I automated Python processing of investigative documents, cutting delivery times by 20%.

Experience

Work history, roles, and key accomplishments

Software Engineer / Database Analyst

Lumentrack

Mar 2025 - Dec 2025 (9 months)

Optimized PostgreSQL database schemas and REST API endpoints for a production analytics dashboard, tripling stable concurrent capacity and reducing page load latency by 40%. Shipped 20+ feature releases and legacy-module fixes in React and JavaScript.

PostgreSQL REST APIs React JavaScript Database Schema Design Query Optimization

Lead Full Stack Engineer

Freelance

Jan 2024 - Mar 2025 (1 year 2 months)

Spearheaded an end-to-end workflow automation platform for the Juan Germán Roscio Mayoralty, digitizing 150+ internal administrative procedures used daily by 35 municipal employees. Directed a large-scale database migration and query-indexing initiative, slashing procedure turnaround time by over 50%.

Fullstack Development Workflow Automation Database Migration Query Optimization React NodeJS PostgreSQL

Software Developer / Configurator

Sintelix

Sep 2022 - Jan 2024 (1 year 4 months)

Automated Python scripts to process 15-30+ unstructured investigative documents daily, developing detection algorithms and cutting delivery times by 20%. Authored 'Lookups' reference guides and translated source documents to improve recognition accuracy.

Python Automation Web Scraping Data Analysis Agile Scrum

Education

Degrees, certifications, and relevant coursework

Midudev

SQL: Beginner to Advanced, SQL and Databases

Completed the SQL: Beginner to Advanced course, covering SQLite, MySQL, and NoSQL (MongoDB) ecosystems.

Udemy

Python: 100 Days of Code, Python Programming

Completed the Python: 100 Days of Code course, a 50-hour program covering Python programming.

Commit Academy

AWS Cloud Fundamentals, Cloud Computing

Completed the AWS Cloud Fundamentals course, covering cloud, serverless, and operations.

Codédex

The Origins III: JavaScript, JavaScript

Completed The Origins III: JavaScript course, a 50+ hour program on JavaScript.

EF Standard English Test

EF SET English Certificate, English Language

Grade: C1 Advanced

Earned the EF SET English Certificate at C1 Advanced level.

Codédex

C++, C++ Programming

Completed the C++ course, a 50+ hour program on C++ programming.

Codédex

Framework Valley: React, React

Completed the Framework Valley: React course, a 50+ hour program on React.

Codédex

Java, Java Programming

Completed the Java course, a 50+ hour program on Java programming.

Universidad Nacional Experimental Simón Rodríguez

Bachelor of Science, Computer Science Engineering

2020 - 2024

Pursued a Bachelor of Science in Computer Science Engineering, completing a capstone project on a tracking and validation system for administrative procedures.