Walter Santacruz

Security Consultant

Medellín, Antioquia, Colombia3 yrs 8 mos experience
AI ML PractitionerAI Enabled

Key Highlights

  • Led critical incident response protecting millions.
  • Implemented automation reducing manual operations by 80%.
  • Transformed teams into security advocates.
Stackforce AI infers this person is a Cloud Security Engineer with expertise in AWS and automation.

Contact

Skills

Core Skills

Cloud SecuritySecurity ConsultingAutomationCloud ComputingAws Solutions ArchitectureSoftware DevelopmentCloud Deployment

Other Skills

IAMKMSLambdaECSDynamoDBS3GuardDutyAWS ConfigSecurity HubAWSSecurity ReviewsArchitecture ReviewsAPI DevelopmentDockerLeadership

About

Cloud Engineer with experience designing, securing, and evolving cloud environments at scale across banking, telecom, energy, and public sector. I have supported complex cloud transformations by assessing architectures, implementing security controls, automating through IaC, and leading teams through best practices that balance security, velocity, and business outcomes. I'm driven by curiosity and continuous learning, I hold 5 AWS certifications, completed a Cybersecurity Specialist postgraduate degree and pick up new tools and technologies fast by building with them from day one, not just studying them. I've led critical incident response, restructured engagement scopes under pressure, and made tough escalation calls that protected millions in regulatory exposure, always grounding decisions in data and long term impact. I've turned resistant teams into security advocates and translated technical risk into business language that drives action. I lead by enabling others, mentoring emerging talent and facilitating knowledge transfer. I am known for strong ownership, clear communication, and a pragmatic approach to solving complex technical problems. Open to roles in cloud security, remote or hybrid. Open to relocation.

Experience

Amazon web services (aws)

2 roles

Security Consultant

Promoted

Oct 2022Jan 2026 · 3 yrs 3 mos

  • Acted as the primary security point of contact for multiple large scale engineering initiatives, partnering with development teams across the full software development lifecycle to identify risks, conduct security reviews, and improve cloud security posture.
  • Led 20+ security and architecture reviews and more than 40 in-depth code reviews for enterprise customers across LATAM, implementing 100+ cloud security controls across IAM, KMS, Lambda, ECS, DynamoDB, S3, GuardDuty, AWS Config, and Security Hub
  • Designed and implemented eventdriven security automation in multiple customers, reducing incident response time by up to 70% and manual security operations by up to 80%, saving hundreds of engineering hours annually.
  • Co-created an agent to reduce thread modeling time from 4 weeks to less than 15 minutes and increasing teams productivity by 70%.
Cloud SecurityIAMKMSLambdaECSDynamoDB+5

Tech U Resident at Amazon Web Services (AWS)

May 2022Oct 2022 · 5 mos

  • Designed, implemented and presented 4 end-to-end solution proposals for internal stakeholders solving real world problems using AWS cloud services.
  • Earned AWS Certified Cloud Practitioner and AWS Solutions Architect – Associate in under 2 months (program target: 6 months), applying learning and being curious and ownership leadership principals.
AWSCloud ComputingAWS Solutions Architecture

G-ocho sas

Estudiante en prácticas

Sep 2021Mar 2022 · 6 mos · Cali, Valle del Cauca, Colombia

  • Led the development of an application for the legal team, reducing the time of their litigation tracking process by 80%.
  • Developed and documented APIs, gathering requirements and collaborating with stakeholders to align scope and reduce rework.
  • Containerized applications with Docker and deployed workloads across AWS and hybrid environments to improve deployment consistency.
API DevelopmentDockerAWSSoftware DevelopmentCloud Deployment

Education

Universidad del Valle (CO)

Ingeniería — Ingeniería de sistemas

Jan 2016Dec 2022

Universidad Autónoma de Occidente

Especialización en ciberseguridad — Ingeniería de sistemas

Oct 2023Oct 2024

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