System Engineer Resume
PROFESSIONAL SUMMARY
- 8 years of IT Industry experience across AWS, DevOps, System Administration, VMWare, SAN, Load - Balancing, CDN, Configuration Management, Site-Reliability, & CI/CD & Release Management
- Key technical resource for complex, large-scale company IT initiatives i.e. Digital Transformation, Disaster Recovery/Business Continuity, Site-Optimization, & Cloud-First Strategies
- Seasoned in Infrastructure/Systems Engineering i.e. Servers (UNIX/Linux), VMware, SAN, Load-Balancing, Hardware & Datacenter Operations - Adept in modernizing Infrastructure Landscapes & practices
- Technical expertise with successfully migrating on-premise business-critical Applications/Workloads to the Cloud (AWS) while subsequently minimizing cost
- Experience with leveraging DevOps practices & Build Automation Tools i.e. Jenkins, Bamboo, Hudson, & Maven to achieve end-to-end Release Automation
- Solid understanding of Ansible & Chef Automation solutions to deploy uniform configuration states & code across Dev, QA, & Production environments both on-premise and in the Cloud
- Experience in working with AWS Cloud Formation, Ansible, & Terraform templates to automate Infrastructure provisioning & versioning thereby minimizing configuration drift and ensuring rapid deployment as well as rollback
- Involved in Site-Reliability Operations - Coordinated with Development, Database, Middleware, & Architecture Teams to enhance Site & core Application performance and maximize uptime per company SLAs by way of Application, DB, & System Tuning and through the build-out of monitoring platforms and alerting mechanisms
- Proven track-record of consistently exceeding expectations and meeting objectives within deadlines; Able to set high performance benchmarks on all project deliverables both in a team and individual setting
PROFESSIONAL EXPERIENCE
Confidential
System Engineer
Responsibilities:
- Ensure 100% functional integrity of mission-critical production Red Hat Enterprise Linux servers - a critical factor for the company’s retail websites and in-house distribution operations.
- Supported a $1M SAN Refresh project (Hitachi to Pure) in an effort to support high rate of Infrastructure growth - Ongoing support of all company Storage requirements (SAN Architecture, Forecasting, Performance, Brocade FC Switch Zoning, Pure SAN Controller & Firmware Upgrades)
- Serve as primary on-call point of contact for Level 1, 2, & 3 Linux (RHEL), SAN, & F5 support of internal applications along with our Hybris omni-channel eCommerce platform.
- Maintain application/network traffic delivery & ensure site reliability via Big IP F5 (LTM) Load Balancing strategies (iRules, SSL Offloading, Deploy Virtual Servers/Pools, Provision Health Monitors, Define Traffic Optimization Profiles)
- Automated enterprise-wide server patching (On-Premise & AWS) to streamline system updates via Ansible and Satellite 6, ultimately saving over 15 hours of work each month and ensuring consistent Patch rollout within set maintenance window.
- Involved in Site-Reliability operations - Coordinating with Development & Database Teams to enhance site performance and maximize uptime - by way of System/DB Performance tuning & configuring customized alerting w/in AppDynamics & PRTG for key business applications.
- Leveraged Packer to automate the monthly rollout of Security Hardened ECS-Optimized AMI for the ECS Clusters thereby allowing us to meet Security SLAs and significantly reducing turnaround time
- Leveraged Ansible & Ansible Tower for Configuration Management & Automation capabilities - automating redundant/manual tasks via Playbooks and maintaining uniform server configuration states across environments. Playbooks were checked into and maintained in a BitBucket repository.
- Built enhancements to Jenkins & Hudson CI/CD Pipelines – setup Build-triggers to schedule job execution, integrate Testing, & display reports.
- Member of CCOE (Cloud Center of Excellence) Team Support Development/Engineering Teams to deliver complex yet resilient AWS solutions as per Pampered Chef’s Business needs (part of New Horizons Initiative to migrate all Production workloads to a Public Cloud Platform) - Designed and implemented Cloud (AWS) Solutions to add Scalability and Fault Tolerance to key applications. Including but not limited to managing AWS IAM to Azure AD Role Mappings, deploying Bastion Hosts with cross-account access, configuring RedShift Data Warehouse & RDS Databases via CloudFormation, maintaining ECS Clusters, provisioning SQS queues, architecting AWS Blue-Green deployments, setting up Elastic Load Balancers (ELBs), migrating on-premise Applications/workloads to AWS, plus ongoing support and maintenance of Pampered Chef’s AWS Infrastructure & Release Management operations.
- Key technical support for Pampered Chef’s DR & Business Continuity Initiative – Complex, year-long project to stand up our on-premise Hybris environment in AWS. Configured BIG-IP VE’s in AWS to support Load-Balancing requirements. Leveraged Rubrik Backup Appliance Cloud-Conversion capabilities to convert on-premise front-end Application Servers to AWS EC2 Instances which were then added to AWS Autoscaling groups thereby supporting self-healing immutable infrastructure.
- Consult on new server requests for the company’s Oracle R12/Modernization Project to ensure resource specifications meet Oracle R12 Application requirements without surpassing reasonable need, thus ensuring highly stable performance
- Design and implement streamlined high-efficiency processes, including system-wide Legacy Server migrations (Oracle Enterprise Linux 5.x & RedHat Enterprise Linux 4.x to RedHat Enterprise Linux 7.2) while ensuring application performance and uptime
Confidential
Senior Systems Engineer
Responsibilities:
- Escalation point of contact for all Tier 1, 2, & 3 RHEL/UNIX work orders and customer support tasks
- Supported deployment of revamped EMC VMAX SAN Solution
- Upgraded IBM WebSphere Application Server from 6.1 to 8.5.5 and integrated Automated Deployment scripts, resolving recurring time efficiency and human input error issues
- Worked closely with Development & Middleware Teams to triage Application (WebSphere) support issues
- Acted as a technical liaison between Business/Ops teams and Engineering team providing critical insight on upcoming implementations and Infrastructure Modernization initiatives.
- Deployed 150+ RHEL 7 VMs via PXE/Kickstart thereby improving operational efficiency
- Managed Server Refresh task to migrate production workloads from EOL RHEL 4 & AIX 6.1 to RHEL 6.5 OS via BladeLogic Server Automation suite - Servers were bootstrapped as per client requirement
- Implemented Server Virtualization Initiative in which a 60% of the RHEL/Solaris/Microsoft Windows Server 2012 Servers were migrated (P2V) via the VMWare Converter Tool
- Consult on new server requests for the company’s Oracle R12/Modernization Project to ensure resource specifications meet Oracle R12 Application requirements without surpassing reasonable need, thus ensuring highly stable performance.
- Register RHEL Servers to RedHat Satellite 5 en masse to meet Patching SLAs
- Integrated Microsoft AD on all new Linux servers via LDAP/Kerberos Authentication
- Configured DHCP Server on internal VLAN to auto-assign IP to in-house applications
- Leveraged Tivoli Monitoring Suite & OS Native Tools (top, nmon, sar, iostat, vmstat, & mpstat) to diagnose Server infrastructure performance issues
- Installed and configured Rundeck App Server for centralized administrative control point.
- Collaborated with Security Team Initiatives to enhance Infrastructure Security by way of Server Hardening checklists, standardizing SELinux target and Boolean configuration, and refining User/Group ACL and Access Management policies.
Confidential
Senior Systems Engineer
Responsibilities:
- Provided 24/7 Level 1, 2 & 3 on-call support for Red Hat Enterprise Linux & AIX Production Servers including Physical & Virtual system builds, application/software installs, monthly patch cycles, Performance Monitoring & troubleshooting
- Collaborate with Application/Development teams to refine CI/CD Release process and successfully maintain 99.8% uptime during code-rollout
- Create & Maintain Technical SOP Documentation & Runbooks pertaining to core UNIX (AIX 5.1 & RHEL 4) Application Support
- Deployed RHEL Server Probes to support Nagios suite for SNMP-based Server & Network monitoring for entire Infrastructure Landscape
- Coordinate with SAN Team to optimize storage needs of the UNIX server farms via LVM re-architecture and GFS2 Cluster configuration
- Responsible for Ansible Configuration Management POC
- Assisted with a massive Datacenter refresh project which included re-warehousing tasks and Server/Network (Rack & Stack) gear setup as well as re-cabling in conjunction with complete architecture topology diagrams.
- Inherited core IT responsibilities from Senior System Engineer including but not limited to administering automated AIX/RHEL/Ubuntu server-side routines, performance tuning, establishing system monitoring, application support, and ensuring IT systems are in-tune with company’s Security program.
- Served as 1st point of contact for IT System solution needs during business hours and on-call 24/7 for 1 week per month.
TECHNICAL SKILLS
OS: RedHat Enterprise Linux 4.X-8.X, CentOS 4.x-7.x, AIX 6.1, Solaris, Microsoft Windows Server 2008/2012R2/2016
Automation/Languages: Python, BASH, JSON, YAML
Hardware: HP DL380 (Gen7, 8, 9) DL580 (Gen7, 8), DL980 (Gen7) DL20 Gen9, HP BL460cc Blade Servers, HP & Cisco Blade Enclosures
Cloud: Amazon Web Services (EC2, EBS, S3, VPC, SQS, SNS, Route53, CloudFormation, ELB, RedShift, Lambda, CloudWatch, CloudTrail, CloudFront, IAM, ECS, ECR, Security Groups, RDS, DynamoDB, Direct-Connect, API Gateway) & Microsoft Azure AD
Virtualization: vSphere, Oracle Virtual Box, vRealize Automation (vRA) & Orchestrator (vRO), KVM, Hyper-V
CI/CD: Jenkins, Hudson
Containerization: Docker, ECS, Kubernetes
Content Delivery: Akamai, AWS CloudFront, CloudFlare
Monitoring Tools/Applications: Tivoli (TSM), Dynatrace, PRTG, SolarWinds, Splunk, AppDynamics, IBM QRadar
Configuration Management: Ansible, AWX Tower, Chef, RedHat Satellite
Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP
RDBMS: Oracle Veritas, Oracle 11G/12C, Oracle RAC, Oracle SOA, Oracle Enterprise Manager (OEM), MongoDB
Security: Qualys, Forescout, Protectwise, Rapid7, CyberArk, Splunk, Cimcor
SAN: Pure M70/M50 SAN Arrays, Brocade Fiber-Channel Switches, QLogic, Enterprise NAS, RedHat GFS2 Clusters
Web/Application Servers: Apache, HTML, XML, Active Directory, NGINX, JBOSS, WebLogic, Ant, Maven, Tomcat 8, Nutch, Hybris, Apache Zookeeper, Solr, Memcache, Kafka, Jenkins/Hudson CI/CD Tools, BitBucket, Git
Desktop Applications: MS Office 365, Skype for Business, MS Teams, Slack