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I'm Marcelo Hack, a seasoned IT professional with over 25 years of experience across multiple industries. For the last 15 years I have specialized in distributed systems architecture and software development, focusing on delivering reliable, scalable solutions that improve user experience and system availability. I am passionate about evaluating new technologies and designing practical architectures that balance performance, reliability, and maintainability. I excel at modernizing legacy applications from monoliths to microservices without service disruptions, mentoring teammates, and driving results aligned with organizational goals. I enjoy collaborating with cross-functional teams to deliver robust, secure solutions and continuously improve development and deployment practices.…I'm Marcelo Hack, a seasoned IT professional with over 25 years of experience across multiple industries. For the last 15 years I have specialized in distributed systems architecture and software development, focusing on delivering reliable, scalable solutions that improve user experience and system availability. I am passionate about evaluating new technologies and designing practical architectures that balance performance, reliability, and maintainability. I excel at modernizing legacy applications from monoliths to microservices without service disruptions, mentoring teammates, and driving results aligned with organizational goals. I enjoy collaborating with cross-functional teams to deliver robust, secure solutions and continuously improve development and deployment practices.

Marcelo Hack

DevOps Developer, Full Stack Developer, Web Developer, +2

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I'm Marcelo Hack, a seasoned IT professional with over 25 years of experience across multiple industries. For the last 15 years I have specialized in distributed systems architecture and software development, focusing on delivering reliable, scalable solutions that improve user experience and system availability. I am passionate about evaluating new technologies and designing practical architectures that balance performance, reliability, and maintainability. I excel at modernizing legacy applications from monoliths to microservices without service disruptions, mentoring teammates, and driving results aligned with organizational goals. I enjoy collaborating with cross-functional teams to deliver robust, secure solutions and continuously improve development and deployment practices.…I'm Marcelo Hack, a seasoned IT professional with over 25 years of experience across multiple industries. For the last 15 years I have specialized in distributed systems architecture and software development, focusing on delivering reliable, scalable solutions that improve user experience and system availability. I am passionate about evaluating new technologies and designing practical architectures that balance performance, reliability, and maintainability. I excel at modernizing legacy applications from monoliths to microservices without service disruptions, mentoring teammates, and driving results aligned with organizational goals. I enjoy collaborating with cross-functional teams to deliver robust, secure solutions and continuously improve development and deployment practices.

Available to hire

I’m Marcelo Hack, a seasoned IT professional with over 25 years of experience across multiple industries. For the last 15 years I have specialized in distributed systems architecture and software development, focusing on delivering reliable, scalable solutions that improve user experience and system availability. I am passionate about evaluating new technologies and designing practical architectures that balance performance, reliability, and maintainability.

I excel at modernizing legacy applications from monoliths to microservices without service disruptions, mentoring teammates, and driving results aligned with organizational goals. I enjoy collaborating with cross-functional teams to deliver robust, secure solutions and continuously improve development and deployment practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Python

Intermediate

React Native

Intermediate

Work Experience

Secrets Engineer at Macquarie Group (Robert Half)

October 1, 2024 - Present

Act as a DevOps/Backend Engineer on the PAM (Privileged Access Management) and Secrets Management team within the COG Cybersecurity division. Support the Credentials Sync process to keep CyberArk Vault credentials synchronized with HashiCorp Vault for downstream clients. Implement the Dual Accounts feature on the PAM Portal using Java 17/Spring Boot microservices, Camunda workflow engine, AWS SNS/SQS, MySQL, and a React frontend. Provision and maintain a dynamic HashiCorp Vault infrastructure via Terraform, integrating Vault with AWS resources (EC2, RDS, Lambda, EKS) using multiple authentication methods. Maintain EKS clusters and Kubernetes resources (AWS Load Balancer Controller, ExternalDNS, Vault Secrets Operator, Ingress) using Helm charts. Conduct vulnerability scanning with Black Duck SCA and Fortify as part of release management.

Senior DevOps Engineer at TES / Edval Education

December 1, 2023 - October 16, 2025

Bridge Platform Engineering and Development teams, overseeing the full application lifecycle from building to deployment. Led migration of applications from on‑prem to AWS, Kubernetes and Fastly CDN. Modernization through containerization with Docker (Java 11-17, Spring Boot, PostgreSQL/DynamoDB, Node.js/TypeScript/JavaScript). Developed Java Spring Boot REST APIs, Go CLI tools, and .NET Core microservices; frontend in React/TypeScript. Implemented REST API design (OpenAPI) with versioning and caching. Implemented CI/CD with GitHub Actions/Jenkins; IaC with Terraform/CloudFormation; static analysis with SonarCloud/Snyk; monitoring with CloudWatch and ELK/Grafana.

Senior Developer at Law of the Jungle

April 1, 2019 - October 16, 2025

Led migration of a SaaS Marketing and Legal Compliance application from a monolithic architecture to a microservices-based architecture through extensive refactoring, using AWS, Terraform, Docker, Java 8, Spring Boot, Angular, Elasticsearch, HashiCorp Vault, AWS S3/SQS/Lambda, and Google Vision/OCR. Automated infrastructure with Terraform and created AMIs with Packer/Ansible. Implemented a custom CI/CD pipeline based on Bitbucket Pipelines, reducing deployment times by over 85%.

Senior Architect at INDRA

March 1, 2016 - October 16, 2025

Managed the HR Payroll system for the Brazilian Navy on RHEL/JBoss EAP 6.3/JEE 6. Optimized and parallelized a large payroll batch process using JMS, reducing processing time from over 14 hours to 3 hours. Conducted infrastructure migration from JBoss 5/JEE 5 to JBoss EAP 6.3/JEE 6, and implemented a Single Sign-On module with Keycloak. Also developed client desktop apps using JavaFX, Spring, JPA, and H2.

IT Project Management / Software Engineer at AGILE IT

March 1, 2015 - October 16, 2025

Provided consultancy and developed E-learning systems on Linux, Java, and PHP. Managed and customized web portals (e.g., for the 5th CISM Military World Games) and built investments training portals (CVM) with PHP and Moodle. Led migration and modernization initiatives, including containerization with Docker (Java 11-17, Spring Boot), PostgreSQL/DynamoDB, Elasticsearch, and Node.js/TypeScript/JavaScript. Implemented CI/CD, automation, and monitoring; delivered training and mentorship to teams.

Senior Architect / Consultant at BRQ Informática

July 1, 2005 - October 16, 2025

Integrated the MMS (ALCATEL) platform with the Billing Prepaid (TECNOMEN) platform for Brasil Telecom. Led migration to IBM WebSphere 4.x/5.1 for HSBC Internet Banking and provided consulting/support for IBM WebSphere 4.x at multiple clients. Delivered consultancy and support for IBM WebSphere 5.x at other organizations.

Senior Systems Analyst at Hotel Distribution Network

September 1, 2003 - October 16, 2025

Developed a web search engine and hotel booking e-commerce using IBM WebSphere 5.0 and Oracle 9i.