John Sexton
Staff Software Engineer at Macy\'sFocus areas: Cloud Architecture | SRE | DevOps | IaC | Kubernetes | Observability | Incident Mgmt
- Role
- Staff Software Engineer at Macy's
- Location
- Asheville, NC, US
- LinkedIn followers
- 500 followers
About John Sexton
Staff Software Engineer specializing in Digital Transformation, Site Reliability Engineering (SRE) and DevOps Architectures; Establishing: configuration management, Infrastructure as Code (IaC), source control management (SCM), branching and merging design patterns, observability, audit, test automation, and security compliance practices, all in large enterprise, mission critical and core revenue environments; Servicing geographically dispersed systems and teams, utilizing Agile methodologies like Kanban, Scrum, Lean & Kata; Leveraging best in class industry standard tooling as defined by CNCF and practices as quantified by industry white-papers such as the annual DORA State of DevOps Report; Driving improved: Time to Value (T2V), quality, efficiency and compliance, while reducing manual efforts required via API driven Enterprise design patternsresume:
Experience
Staff Software Engineer
Feb 2020 — Present · Johns Creek, GA, US
Staff Software Engineer - Macys Technology, Duluth GA 2016-presentPrevious Titles:\"Staff DevOps Engineer\",\"Lead DevOps Engineer, D2C DevOps Architecture\" and \"Systems Specialist, Development, D2C DevOps Architecture\"• Led large-scale Digital Transformation effort, migrating 100+ Java services from CI, to CICD, accelerating deployment cadence from every 2 months to daily, radically reducing deployment team effort required to implement production changes. Implemented following advancements:o From SVN to Git - Co-led small team that rolled out GitLab Enterprise to entire Macys Technology footprinto From branching anti-pattern to modern trunk-based development patterno From legacy SOA, SOAP, XML services to true containerized, 12-factor REST API microserviceso From very basic CI to advanced CI, with compliance gates & modern declarative CD via Spinnakero From handcrafted VMs to 100% defined as Ruby code in Chef Cookbookso From no containers on-prem to a cloud native, container orchestration practice via Docker, Helm, Spinnaker, Kubernetes & GKEo From no observability to whitebox / blackbox monitoring via Stackdriver, Prometheus & Grafanao From no IaC practice, to Terraform provisioned Kubernetes, Spanner, Datastore, PubSub, CloudTasks, Dataflow self-serviceo From 100% human monitoring to automated Prometheus alert-manager alerts firing PagerDuty incident response incidentso From 100% on-prem Data Center to all lower lifecycle environments in GCE, to all greenfield projects in GKE via Docker / Kubernetes
Skills
- Data Center
- Virtualization
- Disaster Recovery
- Network Security
- Servers
- Troubleshooting
- Cloud Computing
- Enterprise Architecture
- Tcp/Ip
- Unix
- Dns
- Iis
- Active Directory
- Databases
- Project Management
- Microsoft Sql Server
- Sdlc
- Business Intelligence
- Sql
- Integration
- Agile Methodologies
- Software Development Life Cycle (Sdlc)
- Wan
- Shell Scripting
- Vmware
- Windows Server
- Oracle
- Unix Shell Scripting
- Obiee
- Scalability
- Oracle Rac
- Informatica Administration
- San
- Governance
- Weblogic Administration
- Obia
- Vendor Relationships
- Risk Assessment
- Configuration Management
- Thought Leadership
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