DENNIS JOSON
Dubai
Summary
Industrious Dev Operations Engineer offering 23-year background setting up CI and CD pipelines and scripting deployment activities. Well-rounded and conscientious professional committed to proactively managing change and quickly deploying critical applications. Expertise in configuration management and Agile, Scrum and Waterfall methodologies.
Overview
23
23
years of professional experience
1
1
Certification
Work History
Senior DevOps Engineer
Valsense FZ LLC
01.2025 - Current
- Create and maintain CI/CD pipeline
- Deploy AWS infrastructure with terraform codes and modules
- Technologies: Could: AWS
- CI/CD: Github actions
- IAC: Terraform, Ansible
Senior DevOps Engineer
ING Business Shared Services Manila B.V.
12.2021 - Current
- Manage Kubernetes cluster deployed in AKS
- Provision new k8s cluster for new customer
- Maintain IAC managed via terraform codes
- Manage application deployment in Kubernetes cluster via helm and ArgoCD
- Manage and configure Azure DevOps pipeline
- Prometheus and Grafana integration to monitor Kubernetes cluster
Lead Software Engineer - DevOps
ThreatTrack Security Philippines Inc. - VIPER
12.2018 - 09.2021
- Automated deployment Infrastructure as code – AWS CDK (ECS, Fargate, Lambda, Redis, CloudFront, S3, SnS)
- Elasticsearch migration from 2.x to 7.x
- Jenkins install, configure and manage jobs
- Create and customize docker image
- Manage Elasticsearch and Hadoop Cluster
- Responsible for the configuration management and automation of task (Ansible and Puppet)
- Manage and configure AWS services
- Manage on premise servers (VMWare)
- Provide technical support for the R&D team
Senior DevOps Engineer
Philippine Digital Asset Exchange - PDAX
06.2018 - 11.2018
- Build, deploy and manage the AWS environment for the blockchain technology
- Responsible for the configuration manage and automation of task (Ansible and Puppet)
Service Engineering Specialist (DevOps)
Voyager Innovations, Inc.
01.2018 - 06.2018
- Build, manage and deploy AWS infrastructure for the Digital Commerce
- Automate deployment from OS level up to applications and services in AWS Cloud
- Deployment with Docker, AWS ECS and ECR
- Manage AWS services SQS, ELB, Auto-scaling, Elasticache, Redis, VPC, Route 53, IAM, RDS, CloudWatch
- Manage node.js, Tomcat and Apache
- Manage and configure MySQL, MongoDB
- Server security patching and upgrade
- Provide support with staging and production environment in AWS
- Help and provide support for the Development team
- Manage and deploy with automation tools Puppet, terraform and Ansible
Senior UNIX Systems Engineer
Champ Cargosystems
10.2012 - 11.2017
- Support all the activities related to AWS cloud, starting from VM Creation, adding storage, adding network, and troubleshooting technical issues
- Migration of VMware image to AWS
- Creating automated deployment infrastructure and processes for multiple projects
- Using Docker, VMWare, RHEL, kickstart, Ansible & Git
- Working closely with Development, Test, Security team
- Experience in CentOS/RedHat cluster
- Task automation and configuration management
- Supports all activities related to all the servers in the Datacenter, starting from VM creation, adding storage (LVM disk management), network and troubleshooting technical issues
- Supports and helps the software development team with technical issues and deployment of their application
- Export and import Oracle database in both Production and Test environment
- Build and supports the network monitoring system Nagios
- Contribute to and maintain operational system standards, configurations and procedures
- Log all useful information, problem solving documentation in appropriate standards
- Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs
- Research and recommend innovative, and where possible automated approaches for system administration tasks
- Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities
- Configure / add new services as necessary
Linux Systems Administrator
Novenix Corporation
05.2010 - 10.2012
- Performing OS and application upgrades on existing systems
- Provide support with production for Linux servers with the global operation for Bovada and Bodog
- Diagnosing system problems, deployment of new systems and application of patches
- Handled the project to build monitors for more than 1000+ servers both virtualized and bare metal
- Provide technical support and liaise with the client
- Installation, configuration and maintenance of firewall, SMTP, web filter and internet proxy
- Handle configurations, installations, monitoring, testing and support of our Linux systems
- Maintain data backups for all Linux based server
- Shell script creation for log deletion with retention period and automation of jobs
- Monitor all Linux servers’ disk utilization, CPU and memory usage
- Ensure the accurate and timely preparation, processing, distribution, monitoring and retention of all systems related records
- Diagnose and report all problems and outages of the Linux infrastructure to local and international technical partners and equipment vendors
- Develop and direct programs to ensure the efficient and cost-effective operation of all Linux based systems and services
- Research and implement highly efficient security strategies for Linux computing systems
- Assist in developing IT policies for Linux systems performance and security
- Responsible for the installation, setup, roll-out, and maintenance of all Linux based infrastructure projects and operations support activities
- Create scripts to automate jobs to help IT operations
- Provide resolution to resolve issue and restore service as soon as possible
- Recommend solutions and suggestions with the current IT operations
- Help and lead with projects that the IT operations manager assigned
- Perform server checks prior to server deployment to production environment
- Follow defined change management process
- Transfer technical knowledge to others
- Work as part of a team that operates large number of mission critical Linux servers
- Diagnose and troubleshoot incidents while attempting to resolve the majority on your own
- Perform required production software deploys and liaise with product development teams to ensure deployments are done properly and in a timely fashion
IT Engineer
REWSS Philippines, Inc.
11.2008 - 04.2010
- Diagnosing system problems, deployment of new systems and application of patches
- Performing OS and application upgrades on existing systems
- Handle configurations, installations, monitoring, testing and support of our Linux systems
- Provide technical support and liaise with the client
- Installation, configuration and maintenance of firewall, web filter and internet proxy, SMTP and webmail
- Maintain data backups for all Linux based server
- Shell script creation for log deletion with retention period and automation of jobs
- Monitor all Linux servers’ disk utilization, CPU and memory usage
- Ensure the accurate and timely preparation, processing, distribution, monitoring and retention of all systems related records
- Diagnose and report all problems and outages of the Linux infrastructure to local and international technical partners and equipment vendors
- Develop and direct programs to ensure the efficient and cost-effective operation of all Linux based systems and services
- Research and implement highly efficient security strategies for Linux computing systems
- Assist in developing IT policies for Linux systems performance and security
- Responsible for leading the installation, setup, roll-out, and maintenance of all Linux based infrastructure projects and operations support activities
Systems Administrator
Machine2Machine Interactive Intelligence Inc
03.2008 - 09.2008
Systems Administrator
TELUS International Philippines
02.2006 - 02.2008
Network Administrator/Computer Technician
Perfidia Industries Incorporated
07.2004 - 02.2006
Programmer/Consultant
Hanes brands Philippines Inc.
02.2004 - 07.2004
Jr. Programmer
Filpride Resources Incorporated
05.2002 - 01.2004
Education
B.S. - Computer Science
Asian College of Science And Technology
Philippines01.2000
Skills
Kubernetes
- EKS
- Helm
- ArgoCD
- Terraform
- Infrastructure as Code (IAC)
- Amazon Web Services (AWS)
- Docker
- Jenkins
- Ansible
- Azure DevOps
- CI/CD
- Configuration Management
- VMWare Virtualization
- Linux Server Installation
Certification
ITIL V3 Foundation Certified, GR750024827DJ
Training
- Linux System Administration, Meralco Foundation Inc., 2005
- Java Programming Fundamentals, Meralco Foundation Inc., 2005
- VMware vSphere: Install, Configure, Manage [V5.5], 2014
Languages
English
Bilingual or Proficient (C2)
Timeline
Senior DevOps Engineer
Valsense FZ LLC
01.2025 - Current
Senior DevOps Engineer
ING Business Shared Services Manila B.V.
12.2021 - Current
Lead Software Engineer - DevOps
ThreatTrack Security Philippines Inc. - VIPER
12.2018 - 09.2021
Senior DevOps Engineer
Philippine Digital Asset Exchange - PDAX
06.2018 - 11.2018
Service Engineering Specialist (DevOps)
Voyager Innovations, Inc.
01.2018 - 06.2018
Senior UNIX Systems Engineer
Champ Cargosystems
10.2012 - 11.2017
Linux Systems Administrator
Novenix Corporation
05.2010 - 10.2012
IT Engineer
REWSS Philippines, Inc.
11.2008 - 04.2010
Systems Administrator
Machine2Machine Interactive Intelligence Inc
03.2008 - 09.2008
Systems Administrator
TELUS International Philippines
02.2006 - 02.2008
Network Administrator/Computer Technician
Perfidia Industries Incorporated
07.2004 - 02.2006
Programmer/Consultant
Hanes brands Philippines Inc.
02.2004 - 07.2004
Jr. Programmer
Filpride Resources Incorporated
05.2002 - 01.2004
ITIL V3 Foundation Certified, GR750024827DJ
B.S. - Computer Science
Asian College of Science And Technology
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