Dan A

Dan A Email and Phone Number

DevOps Engineer @ UnitedHealth Group
united states
Dan A's Location
Fremont, California, United States, United States
About Dan A

Reduced deployment times by 50% through CI/CD pipeline improvements.Migrated applications to serverless architectures, resulting in a 30% cost reduction.Increased scalability by 5x using containerization with Docker and Kubernetes.Reduced vulnerabilities by 25% with security scanning tools.Automated 50 manual tasks, freeing up engineers for strategic work.Cloud Technologies: Extensive experience with AWS (EC2, S3, ELB, VPC, IAM, Lambda) and Terraform for Infrastructure as Code (IaC).Automation & Scripting: Proficient in Python, Bash, Perl, and Ruby for automating tasks, building tools, and managing infrastructure.Configuration Management: Adept at Chef, Puppet, and Ansible for automating infrastructure configuration and deployments.Containerization & Orchestration: Expertise in Docker for containerizing applications and Kubernetes for container orchestration.Version Control: Experienced with Git, GitHub, Gerrit, SVN, and TFS for managing code changes and collaboration.CI/CD Pipelines: Proven ability to build and maintain CI/CD pipelines using Jenkins, Git, and other tools.Database Management: Experience with SQL Server, Oracle, MySQL, and NoSQL databases.Security: Knowledge of OWASP secure coding practices and security scanning tools.Linux Administration: Strong foundation in installing, configuring, and updating Linux systems.Monitoring & Alerting: Skilled in implementing automated monitoring and alerting systems.Recent Roles: Focused on cloud platforms (AWS), containerization (Docker, Kubernetes), CI/CD pipelines, and configuration management, achieving significant improvements in deployment speed, cost reduction, scalability, and security.Earlier Roles: Demonstrated strong Linux administration skills, version control expertise, and experience with older build tools and continuous integration tools.Automation & Scripting ExpertiseCloud Infrastructure Management (AWS)CI/CD Pipeline DevelopmentContainerization & Orchestration (Docker, Kubernetes)Security & Best PracticesProblem-Solving & Communication Skills

Dan A's Current Company Details
UnitedHealth Group

Unitedhealth Group

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DevOps Engineer
united states
Website:
unitedhealthgroup.com
Employees:
108749
Dan A Work Experience Details
  • Unitedhealth Group
    Devops Engineer
    Unitedhealth Group Dec 2022 - Present
    United States
    Designed and managed AWS infrastructure for large number of applications, which uses various AWS tools and services including EC2, S3, ELB, Elastic Beanstalk, VPC, IAM, and security groups, achieving better results in cost savings and performance.Implemented automated monitoring and alerting using Stackdriver and Chef, significantly reducing incident response time and improving system reliabilityUtilized infrastructure-as-code (IaC) tools like Terraform and Ansible to streamline and automate infrastructure deployments, improving consistency and minimizing manual errors.Built and managed containerized environments using Docker and Kubernetes, successfully deploying applications in containers, enhancing scalability and resource utilization.Implemented and managed continuous integration/continuous delivery (CI/CD) pipelines using Jenkins, Git, and other tools, increasing deployment frequency and reducing release time.Utilized configuration management tools such as Chef and Ansible to automate system configurations and deployments, reducing configuration time and ensuring consistency across environments.Developed and maintained automation scripts using Python, Bash, Perl, and Ruby to optimize operational tasks, streamline processes, and improve efficiency.Utilized security scanning tools like Checkmarx, SonarQube, and Coverity to identify and remediate security vulnerabilities, reducing vulnerabilities and improving application security posture.Implemented OWASP secure coding practices in application development, ensuring adherence to industry standards and mitigating security risks.Developed and maintained security policies and procedures, ensuring compliance with relevant regulations and best practices.Implemented and managed centralized logging and monitoring solutions using Elasticsearch, Logstash, Kibana (ELK), Splunk, and AppDynamics, providing comprehensive insights into application performance and health.
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  • Deloitte
    Devops Engineer
    Deloitte Mar 2021 - Nov 2022
    New York, United States
    Reduced deployment time by 50% through CI/CD pipeline improvements.Migrated 10 applications to serverless architecture, resulting in a 30% cost reduction.Implemented containerization with Docker and Kubernetes, enabling 5 times higher scalability.Reduced vulnerabilities by 25% using security scanning tools like Checkmarx and SonarQube.Implemented automated monitoring and alerting, decreasing mean time to resolution (MTTR) by 40%.Automated 50 manual tasks, freeing up 20 hours per week for more strategic work.Proficient in AWS services like EC2, S3, ELB, VPC, IAM, and Lambda, with experience in Terraform for infrastructure as code.Experience in building and maintaining CI/CD pipelines using Jenkins, Git, and other tools, including automating deployment to various environments.Proficient in using configuration management tools like Chef, Puppet, and Ansible for infrastructure automation.Expertise in Docker for containerizing applications and Kubernetes for container orchestration, enabling scalable and efficient deployments.Strong scripting skills in Python, Bash, Perl, and Ruby, used for automating tasks, building tools, and managing infrastructure.Experience with SQL Server, Oracle, MySQL, and NoSQL databases, including performance tuning and data integrity management.Knowledge of OWASP secure coding practices and implementation of security scanning tools to ensure application security.Experienced in collaborating with development teams to implement DevOps practices and effectively communicating with stakeholders.Strong analytical and problem-solving skills, capable of identifying and resolving technical issues quickly and efficientlyDedicated to staying current with the latest DevOps technologies and best practices to optimize processes and improve efficiency.
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  • Various, Inc.
    Devops Engineer
    Various, Inc. Dec 2019 - Jan 2021
    California, United States
    Gained great exposure in Configuration management experience in a complex environment including software application build, packaging and build machine environment management.Performed installation, configuration and administration of ClearCase, Subversion (SVN)and afterwards migrated src, Config and website code over to Git in Windows and Linux environmentAdministered Subversion (SVN), Mercurial version control tools: created accounts, branching, merging, patch fixes, snapshots, and trained users on the Subversion version control systemAdministered Continuous integration tools such as Cruise Control and Team City. And I have hands on experience in working with Apache Continuum.Implemented, integrated and managed Perforce as well as instituting accurate and automated build and release methodologies for Binary compilation for Apache HTTP/HTTPS, Tomcat, NginX, PHP and MySQL.Migrated source control tool from ClearCase to Subversion (SVN) and build tool from Ant to Maven.Extensively used Maven tool to do the builds, integrated Maven to different tools.Build Results are managed in Jenkins and deployed applications using post build activity.
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  • Morgan Stanley
    System Administrator
    Morgan Stanley Mar 2018 - Nov 2019
    Texas, United States
    Installed, configured, and updated Ubuntu, CentOS, and Red Hat-RHEL systems. Performed kernel tuning, troubleshooting hardware, OS, application, and network issues.Automated system administration tasks using bash scripting, including user administration, file system maintenance, backup scripting, and system startup/shutdown procedures.Configured and troubleshooted services like NFS, LDAP, web servers, and application servers. Created logical volumes, file systems, and managed file system growth for Linux servers.Maintained and monitored system activities (CPU, Memory, Disk, Swap space) to ensure optimal performance and prevent issues. Performed performance tuning to optimize system resources.Set up daily backups and restored data from backups as needed.Installed, configured, and maintained Jenkins as a Continuous Integration server. Automated build, deployment, and test execution on multiple platforms. Shared nightly build results and notified teams of build failures.Developed scripts to automate build, packaging, and other repetitive or error-prone tasks associated with the build process.Configured and deployed applications to various environments (Development, Test, Production) using Ansible.Installed Docker, created custom Docker container images, tagged and pushed images, and worked with Docker containers for development and deployment.Experienced in cloning code from Git repositories, checking out branches, and downloading code into Maven.AWS Cloud AdministrationUtilized EC2, auto-scaling, and VPC to build secure, scalable, and flexible systems that handled expected and unexpected load bursts.Proficient with services like EC2, VPC, AMI, S3, CloudFormation, ELB, ALB, ECS, ECR, IAM, EIP.Deployed applications to Tomcat using Ansible playbooks via Jenkins.
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Frequently Asked Questions about Dan A

What company does Dan A work for?

Dan A works for Unitedhealth Group

What is Dan A's role at the current company?

Dan A's current role is DevOps Engineer.

Who are Dan A's colleagues?

Dan A's colleagues are Roslyn Moore, Shravan Kumar, John Bolly Jr., Plasticos Capri, Ronald Attwood, Austin Balken, Amanda Hustad.

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