Miguel Roman

I am a Senior Linux Engineer with 30 years of experience in the deployment and architecture of Linux/UNIX servers. Proficient with configuration management tools, and in developing CI/CD pipelines. Ability to lead technical projects and mentor junior team members. I enjoy staying on top of the latest technology trends and acquiring new skills quickly and independently.

Senior Systems Engineer - Morgan Stanley

(2023-07)

• Provide support for virtualization technologies such as VMware and KVM, as well as for containerization tools like Docker and Kubernetes.
• Using VMware, Cisco UCS, and Ansible, set up new Linux environments for a number of new tasks.
• Implementation of CIS benchmarks, SELinux, Firewalld, and SSH fortification for Linux security hardening.
• Developed a proactive patch management strategy that improved system security and compliance, ensuring adherence to industry standards.
• Install and manage the Red Hat Linux Server operating system together with a number of Linux services and applications, including Postfix, Bash, Python, Perl, Apache, TomCat, Kerberos, LDAP, Puppet, Satellite Server, and Bind.
• Automate routine tasks and processes through scripting and automation tools to streamline operations and reduce manual intervention.
• Migrate legacy Red Hat Linux versions to Red Hat 9
• Support a wide range of data analysis, systems engineering, and business intelligence tools in their daily use.
• Produce reports and documents in support of system requirements and security certifications.
• Proficient at using the AWS CLI to quickly perform tasks and gather data regarding AWS services (EC2, S3, EBS, etc.).

Senior Systems Engineer - MEMX

(2023-03 - 2023-06)

• Contribute to system architecture planning, and policies and procedures
• Conduct impact analysis
• Build run books for orchestration tools used by the firm

Lead Systems Engineer - FactSet Research Systems

(2017-05 - 2023-03)

• Experienced in automating, configuring and deploying EC2 instances on AWS with Terraform.
• Created Packer templates to customize Amazon Machine Images (AMI) and bake immutable configurations to disk.
• Managed several EKS clusters running 100s of containers, 50+ Helm charts, Argo Workflows, ingress-nginx and multiple namespaces.
• Setup a Jenkins master with multiple slaves as a CI tool to support continues development and deployment processes.
• Developed and maintained automated CI/CD pipelines for code deployment using Jenkins.
• Conducted a security audit of a large distributed Linux environment (2400+ hosts) using the CIS Configuration Assessment Tool (CIS-CAT).
• Implemented security hardening of Linux servers using the Center for Internet Security CIS benchmark as a guide.
• Administered IBM Spectrum Scale (GPFS) for clustered file-systems.
• Skilled at using debug tools such as tcpdump (wireshark .pcap), systemtap, collectl and kexec-tools.
• Used CFEngine and Puppet for configuration management.
• Created Ansible playbooks to automate build and deployment processes on servers.
• Created RPM packages to package application software.

Systems Engineer - Rocket Fuel

(2015-09 - 2017-05)

• Linux administration: configure modules, kernel updates, network bonding, IPtables, PAM, and kickstart.
• Used Ansible and Puppet for application provisioning and general maintenance.
• Installed developer tools, including Eclipse, Aptana Studio, SDK repos, libraries and XNVC.
• Perform CPU, memory, network, kernel and disk I/O tuning on Linux servers.

Linux Engineer - Emigrant Bank

(2014-08 - 2015-09)

• Administration of WebSphere Application Server, including: configuring nodes, clusters, applications, plug-ins and virtual hosts.
• Perform application deployments using EAR/WAR files as requested by Emigrant Bank application teams.
• Install, configure and maintain web services, including MySQL, Apache with PHP and SSL extensions, WordPress and Precurio Intranet.

Senior UNIX/Linux Engineer - UBS

(1998-04 - 2014-08)

• Assist in critical outage situations to isolate the root cause, put a temporary fix in place, and recommend long-term fixes.
• Perform CPU, memory, network, kernel and disk I/O tuning on UNIX servers.
• Provide recommendations for server, storage and network capacity planning to management.
• Linux administration: configure modules, kernel updates, network bonding, IPtables, PAM, and kickstart.
• Solaris 10 administration: ZFS pools/vols, container setup, converting rc scripts to SMF services and using Dtrace for troubleshooting.
• Configure Sun DiskSuite, LVM, Veritas Storage Foundation and ZFS for volume management.
• Setup and configure Veritas Cluster Server (VCS 1.3 - 5.x) for application failover.
• Installation and configuration of Sun LDoms on T5xx hardware to consolidate EOL servers.
• Installation and configuration of Solaris containers (zones) for P2V consolidations.
• Migrated UNIX Infra servers (NIS, DNS, NTP, Sendmail, Jumpstart) to Solaris x86 VMware virtual machines (VMs).
• Install and administer VMware ESXi 5.x servers on HP BL460c G8 blades and HP rack-mount servers.
• Setup and configure NFS and SAN datastores in vCenter.
• Administered EMC SAN environment, including: updating zones with Fibre Zone commands, setup LUN access with Volume Logix and mapping LUNs to front-end adapters (FA) using SYMCLI.
• Create templates from VM's for rapid deployment and standardization.

Senior UNIX Administrator - NYFIX, Inc.

• UNIX systems administrator for a large Solaris/SAN environment which routes 40% of all trades to the New York Stock Exchange.
• Participated in the design, enhancement and installation of UNIX systems, including: Sun servers, StorEdge arrays, Clariion arrays and SAN hubs/switches.
• Oracle 8i database administration, including: installing Oracle 8i, managing user accounts, backups, restores, startups, shutdowns and creating table spaces.

UNIX/LAN Administrator - Priceline

• UNIX SA supporting Sun Servers.
• Administered DNS, SMTP, POP, NNTP, FTP and HTTP services.
• Performed UNIX SA tasks, including: adding user accounts, mail accounts, backups, restores and server maintenance.

UNIX Systems Administrator - MIMCO

• UNIX SA for a network of 75 Sun servers.
• Recommended to management procedures and practices to reduce costs and improve productivity, I coordinated the trade-in of older Sun hardware for credit on new server purchases.

UNIX Systems Administrator - Morgan Stanley & Co.

• Supported Commodities and FX traders from the trading floor, I was responsible for the daily support of 172 workstations and 12 servers.
• Performed UNIX SA tasks, including: adding user accounts, mail accounts, backups, restores and server maintenance.

UNIX Systems Administrator - Goldman Sachs & Co.

• Performed UNIX SA tasks for an environment of 150+ Sun servers, including: NIS, NFS, DNS and AMD configurations.
• Supported 3rd party software, worked with market-data vendors, fixed hardware problems and answered help desk calls from traders and developers.

Batcherlor's Degree - Computer Science - New York University New York, NY