Hello, I’m

Javier Melendez Droz

Software Engineer

Open to software engineering opportunities

I build reliable backend services and cloud infrastructure that turn complex operational needs into maintainable systems. I bring four years of experience working with Java, Python, SQL, REST APIs, and AWS.

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About

Engineering for reliability and real-world impact.

I’m a backend-focused software engineer with experience building, maintaining, and supporting production services. My work spans application development, serverless architectures, infrastructure as code, observability, and data stores.

I enjoy tracing complicated system behavior, improving inefficient workflows, and collaborating across teams to ship practical solutions. I’ve maintained services that process satellite imagery metadata and participated in a rotating 24/7 production-support schedule—experiences that sharpened my focus on resilient design, useful monitoring, and calm incident response.

Experience

Professional experience

2022 — 2026

Vantor (Formely Maxar)

San Juan, Puerto Rico / Hybrid

Software Engineer

Developed and operated backend services in a cloud-based production environment.

  • Built and maintained backend services using Java, Python, SQL, REST APIs, and AWS.
  • Supported systems that process satellite imagery metadata with an emphasis on reliability and traceability.
  • Reduced calls to an external API from approximately 10,000 per day to 180 per day through a more efficient integration design.
  • Developed serverless workflows with Lambda, Step Functions, SQS, SNS, DynamoDB, API Gateway, and CloudFormation.
  • Improved operational visibility using CloudWatch metrics, logs, dashboards, and alerts.
  • Participated in a rotating 24/7 production-support schedule, investigating incidents and restoring service.
  • Collaborated through GitHub and Jira in an iterative development and delivery process.

Technical toolkit

Skills organized by how I use them.

Languages & APIs

  • Java
  • Python
  • SQL
  • REST APIs

AWS & Serverless

  • Lambda
  • Step Functions
  • SQS
  • SNS
  • DynamoDB
  • CloudWatch
  • API Gateway
  • CloudFormation

Cloud & DevOps

  • Docker
  • Kubernetes
  • Terraform
  • Jenkins

Data & Collaboration

  • PostgreSQL
  • GitHub
  • Jira
  • Production support

Selected work

Projects and engineering impact

External API Optimization

Redesigned an integration workflow to eliminate unnecessary requests, reducing external API traffic from roughly 10,000 calls per day to just 180.

  • Backend
  • APIs
  • Performance

Satellite Metadata Services

Maintained production services responsible for processing satellite imagery metadata, with operational monitoring and incident response built into the workflow.

  • AWS
  • Python
  • CloudWatch

Serverless Processing Workflow

Built event-driven cloud workflows using managed AWS services to coordinate processing, messaging, persistence, and observability.

  • Lambda
  • Step Functions
  • SQS

Credentials

Education and certification

Education

Bachelor’s in Computer Engineering

University of Puerto Rico at Mayagüez

Certification

AWS Certified Cloud Practitioner

Amazon Web Services

Get in touch

Open to work

I’m interested in software engineering opportunities where reliability, cloud systems, and thoughtful problem-solving matter.

melendezdroz@gmail.com