Joel Juliano

Work

Professional Experience

  • Randstad Digital, Netherlands (Mar 2026 – present): Software Engineer. Currently between client assignments.
  • Belastingdienst (Dutch Tax Office), Netherlands (2025 – 2026): System Engineer — IV Analytics. Built 2 production systems integrating with Teradata, architected for DB2/PostgreSQL migration compatibility. Built Batch Service Automation (YAML) deployed across thousands of government servers. Built IMS Interface for automated role/permission management. RHEL, systemd, SELinux, Ansible, Python.
  • DAZN, Amsterdam (Apr 2019 – Sep 2024): Designed payment systems handling 10M+ daily requests using AWS, Go, TypeScript. Developed AWS Lambda functions, reduced latency by 90%. Overhauled CI/CD pipelines, mentored juniors, and managed 24/7 on-call duties.
  • Jexia B.V., Apeldoorn (Mar 2018 – Mar 2019): Built serverless platform MVP with Go, Kubernetes, gRPC, and Protobuf. Automated cluster setup, developed E2E testing scripts.
  • Altus-DC, Singapore (Oct 2016 – May 2018): Led development of iamClaire.com, a social e-commerce platform, using Ruby, Rails, AWS. Managed team of 7, built CI/CD pipelines.
  • VIPRE Security Group, Philippines (Jul 2013 – Mar 2016): Developed macOS antivirus, enhanced malware analysis with C++, Ruby, Objective-C. Created DevOps tools for VM management.
  • 2XL Games, Philippines (2012 – 2013): Developed cross-platform games using C++, RubyMotion, Objective-C. Led iOS game development, supervised 5 team members.
  • Getaroom.com, Dallas, TX (Feb 2011 – Mar 2012): Migrated Rails 2 to Rails 3, improved geolocation features. Managed remote team of 4, contributed to upstream Rails projects.
  • 8Layer Technologies, Philippines (2009 – 2010): Built VoIP infrastructure with Asterisk, developed KahelOS Linux distro, and created Ruby on Rails web apps.
  • Insync, Philippines (2008): Founding member, built initial MVP for cloud sync platform.
  • Unilox Industrial Corporation, Philippines (2005 – 2008): Freelance developer for thesis projects, Ubuntu advocate.
  • Unilox Industrial Corporation, Philippines (2004): Technical consultant, developed ERP system for manufacturing.

Skills

  • Languages/Frameworks: Go (7+ years), Ruby/Rails (10+ years), TypeScript (6+ years), JavaScript (15+ years), Node.js (6+ years), Python (4+ years), C++ (5+ years), Objective-C (4+ years)
  • Cloud/DevOps: AWS (17+ years), Kubernetes (6+ years), Terraform (6+ years), CI/CD (10+ years), GitHub Actions (4+ years), Docker
  • Platforms/Tools: Linux (20+ years), MySQL, NoSQL, Git, Jenkins, JIRA, Firebase, GraphQL
  • Methodologies: Agile, Scrum, TDD/BDD, Microservices, Serverless

Certifications

  • EITCA AI Programme (2024)
  • Certified Linux Administrator (RHEL 7, 2016–2019)
  • 30+ professional certifications: Linux Admin (RHEL 7, score 4.38), Unix Admin (4.38), JavaScript (4.34), Internet Security (3.68), Bash Shell Scripting (3.66), Cisco Network Support (3.23), C++, Python, Ruby, and more
  • Multiple EITC certifications (Google Cloud, TensorFlow, Python, etc.)

Media & Contributions