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Professional

⭐ Backend Developer focused on scale and reliability

Backend developer with solid experience in distributed systems, cloud infrastructure, and observability. I work with a strong focus on clean code, performance, and pragmatic technical decisions.

  • 🚀 Java & Spring Boot for robust backend services
  • ☁️ AWS with automation and monitoring in mind
  • 📊 Observability as a core pillar, not an afterthought

🧩 Projects

What I really build

👨‍💻 About Me

A summary of my journey

🌍 1 year as an International Backend Developer at KWAN

  • Develop and maintain backend services using Java in distributed system environments
  • Work with cloud-based architectures, leveraging AWS services to support scalable applications
  • Contribute to system reliability and performance through monitoring and observability practices
  • Collaborate with cross-functional and distributed teams in a fully remote setup
  • Support continuous improvement initiatives focused on code quality, stability, and maintainability

🔥 4 years as a Backend Developer at Zup

  • Maintained and evolved Java backend services handling high-volume traffic
  • Modernized legacy applications to support cloud migration strategies
  • Worked with containerized environments and AWS services
  • Implemented monitoring, dashboards, and alerting for distributed systems
  • Contributed to infrastructure cost reduction through cloud optimization initiatives

🌱 1 year as a Frontend Developer Intern

  • Developed automation tools in Python to support marketing and social media operations
  • Built a system to manage and track Instagram and Facebook follower growth
  • Created internal tools such as a client document management system
  • Improved operational efficiency by enabling sales teams to quickly access and manage client data
  • Collaborated with non-technical teams to translate business needs into technical solutions

Experienced in high-demand technical environments, international collaboration, and mission-critical systems.

📬 Contact Me

Let's talk!

💼 LinkedIn: walteralleyz

🚀 Open to backend, cloud, and architecture challenges.