Jonathan Narvaez Sosa Backend Engineer

Python, Java, backend systems

Backend engineer focused on Django and Spring Boot.

Engineer with a background in electronics and networking who moved into software through SQL, Python and web development. I now focus on backend systems, internal tools and engineering work across Python, Java and TypeScript, and I am targeting remote backend engineering roles.

Remote-ready AZ-204 certified System analysis
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Selected Work

Projects that best represent my software engineering work.

Engineering tooling

Java modernization accelerator

Internal accelerator that analyzes Java codebases through Neo4j and Cypher to surface architecture relationships and modernization insights.

Java, Neo4j, Cypher

  • Supported codebase ingestion and analysis flows for modernization use cases.
  • Implemented tooling that exposed graph-driven architecture insights to engineering teams.

Client delivery

CMDB relationship graph

Visualization experience that maps relationships between enterprise applications using extracted CMDB data and graph-based UI components.

React, TypeScript, React Flow, ELK

  • Built frontend flows to render application relationships clearly.
  • Helped shape a client-facing accelerator for dependency exploration.

Backend application

Django document management platform

Research submission and validation system built for academic workflows, with secure backend logic, messaging and background task support.

Django, Redis, RabbitMQ, Celery, Docker

  • Designed backend workflows for validation, notifications and administration.
  • Introduced supporting services for caching and asynchronous processing.

Experience

Professional experience

Sep 2024 - Present Remote

Encora

Software Engineer

  • Developed a visualization platform using React Flow to map relationships between enterprise applications from CMDB data in support of system analysis and modernization work.
  • Contributed to an internal modernization accelerator that analyzes Java codebases through Neo4j graph databases and Cypher queries.
  • Implemented backend services and analysis tools to support codebase exploration and architecture analysis workflows.
  • Contributed to an internal application for engineering trainees, implementing backend features with Spring Boot and frontend components with React and TypeScript.
  • Worked in Docker-based, Git-driven Agile environments across backend and product-facing engineering work.
Jan 2024 - Dec 2024 Mexico City

Instituto Politecnico Nacional

Software Developer

  • Led backend development of a Django-based document platform for research submission and validation workflows.
  • Modeled the database and implemented review, notification and administration logic.
  • Added Redis, Celery, RabbitMQ, secure authentication and Docker-based packaging.
Dec 2023 - Feb 2024 Remote

ConfiAbogado

Intern

  • Automated client workflows by integrating Django-based webhooks with HubSpot and Typeform to streamline data processing.
  • Designed and implemented HubSpot workflows to optimize lead management and internal notifications.
  • Improved operational efficiency by automating recurring tasks through Zapier integrations.
  • Worked across Typeform, HubSpot, Django, Python and Zapier in support of internal workflow automation.
Apr 2023 - Dec 2023 Mexico City

Instituto Politecnico Nacional

Technical and Administrative Support

  • Produced reporting through SQL queries in Microsoft SQL Server for academic and administrative needs.
  • Automated repetitive internal tasks with Excel macros and VBA.
  • Deployed a static AWS website and supported researchers with legacy system troubleshooting.

Credentials

Verified certifications and current learning priorities.

Current learning

I am continuing to deepen cloud application delivery knowledge across Azure and AWS while keeping backend engineering as the center of my profile.

Education

Engineering background in communications, networking and systems.

BS Electronics and Communications Engineering

Instituto Politecnico Nacional

Graduate with specialization in communications and networking, with continued hands-on interest in systems, electronics and instrumentation projects.

This site is a personal project built as a static site and deployed on AWS through GitHub Actions, with delivery via S3 and CloudFront.