Oscar I Hernandez V.

Oscar I Hernandez V

Software & Cloud Architect - Software Developer

location_on Mexico City, Mexico mail touch@maleficarum.mx www.linkedin.com/in/oscariventura/ github.com/maleficarum

About Me

Software Developer with 20+ years of experience specializing in cloud-native applications and scalable software architecture. Proven track record in designing, developing, and maintaining robust software solutions.

Expertise in Java and TypeScript ecosystems with strong focus on DevOps practices, Infrastructure as Code (Terraform), and Site Reliability Engineering (SRE) principles. Delivers high-quality, maintainable systems through collaborative development and continuous improvement.

Experience

Master Principal Cloud Engineer

May 2025 - Present

• Provisioned and configured 20+ OKE clusters for enterprise clients, achieving 99.9% uptime and 40% cost reduction through optimized autoscaling.
• Implemented GitOps workflows that cut deployment time by 70% and eliminated configuration drift.
• Accelerated customer onboarding from weeks to days using standardized Terraform modules across 15+ deployments.
• Automated infrastructure provisioning reducing manual effort by 80% while ensuring security compliance.
• Migrated critical workloads from AWS/GCP to OCI, delivering 30-50% TCO reduction for key accounts.
• Architected highly available solutions across OCI regions, reducing RTO for mission-critical applications.
• Reduced time-to-market by 60% through automated infrastructure and deployment pipelines.
• Strengthened customer partnerships leading to 35% increased OCI consumption and expanded cloud footprints.
• Enabled cloud diversification by moving workloads from single-cloud vendors to OCI.
• Architected a full-stack Disaster Recovery service on OCI for OKE clusters, protecting the entire application lifecycle from cluster state to application data.

Master Principal Cloud Architect

July 2020 - May 2025

• Designed and implemented a hybrid and multi-cloud architectures (Oracle, AWS, GCP and/or on-premises) for financial and retail institutions, reducing infrastructure costs by 30% and improving scalability.
• Led a cloud cost optimization initiative, leveraging auto-scaling, reserved instances, spot instances and creating an on-demand consumption architecture to reduce down time in 15%.
• Collaborated with development, operations teams, product managers and customers to implement a cloud-native microservices architecture, reducing deployment times by 50%.
• Designed and implemented a disaster recovery plan for critical cloud applications, achieving the customer’s RTO (Recovery Time Objective) and RPO (Recovery Point Objective) which may differ according their deployments.
• Pioneered the adoption of Kubernetes for container orchestration, enabling seamless deployment and scaling of microservices.
• Designed an elastic cloud architecture capable of handling seasonal traffic spikes, supporting a 15x increase in user load during peak periods.
• Ensured consistent performance and avoided costly over-provisioning.

Principal Sales Consultant

November 2012 - May 2021

• Developed Middleware Sales opportunities and maintain customer relationships.
• Promoted and evangelized Oracle products to selected customers, partners, and internal audiences.
• Developed relationships and collaborate with our partners to define, recommend, and drive sales.
• Developed and execute a sales plan that provides complete territory and sector specific coverage to ensure sales targets, forecast accuracy and prioritization.
• Contribute individually and as a team member, providing direction and mentoring to others.

Technology Advisor @ Sinformex

May 2007 - 2012

• Driving technology strategy aligning with business goals and market trends.
• Lead cross-functional teams to implement innovative technology solutions.
• Foster a culture of continuous learning and technology adaptation.
• Mentor and develop engineering leadership to enhance team capabilities.
• Collaborate with stakeholders to prioritize technology investments and resources.
• Implement agile methodologies to improve project delivery and efficiency.
• Ensure cybersecurity measures are robust and align with industry standards.
• Analyze data to inform strategic decisions and optimize technology operations.
• Promote remote collaboration tools to enhance team productivity and connectivity.
• Evaluate emerging technologies to maintain competitive advantage and innovation

Senior Java Developer

May 2005 - Oct 2012

• Designed and developed a high-performance, low-latency Java-based prepaid platform for a Telco services, handling 10,000+ transactions per second.
• Enhanced application performance by 25% and reduced bug resolution time by 40%.
• Integrated multiple third-party APIs and WebServices (e.g., payment gateways, geolocation services) into a Java-based prepaid platform, ensuring seamless data flow and error handling.
• Increased conversion rates by 15% and improved customer retention.
• Architected a scalable Java-based backend system for a prepaid backend platform, supporting 3M+ daily sales.
• Ensured high availability and performance during peak traffic periods. Worked effectively with cross-functional teams (including QA, DevOps, and product management) to ensure seamless integration and delivery of software.

Oscar I Hernandez V