Senior Systems Administrator
- Highlands Ranch, CO, USA
Common Purpose, Uncommon Opportunity. Everyone at Visa works with one goal in mind – making sure that Visa is the best way to pay and be paid, for everyone everywhere. This is our global vision and the common purpose that unites the entire Visa team. As a global payments technology company, tech is at the heart of what we do: Our VisaNet network processes over 13,000 transactions per second for people and businesses around the world, enabling them to use digital currency instead of cash and checks. We are also global advocates for financial inclusion, working with partners around the world to help those who lack access to financial services join the global economy. Visa’s sponsorships, including the Olympics and FIFA™ World Cup, celebrate teamwork, diversity, and excellence throughout the world. If you have a passion to make a difference in the lives of people around the world, Visa offers an uncommon opportunity to build a strong, thriving career. Visa is fueled by our team of talented employees who continuously raise the bar on delivering the convenience and security of digital currency to people all over the world. Join our team and find out how Visa is everywhere you want to be.
The Operational Security Resolution team prides itself in keeping Visa systems up and secure, catering to the 24*7 needs of the business. As part of the team, you will be responsible for developing and supporting critical system and network solutions to ensure the security of the applications and data by performing proactive maintenance activities, engage in automation activities, root cause analysis, and remediation. The role requires working knowledge of production support processes such as incident/change/problem management, remediation packaging, and package deployment and reporting. The role will also demand the ability to write and maintain scripts to remediate vulnerabilities during pre- and post-production implementations, and working with application teams to perform post-remediation validation
Responsible for the ongoing security maintenance (while safeguarding availability) of Systems infrastructure based on business requirements and adhering to tight operations, security, and procedural models
Demonstrate a high level of technical expertise to support complex Windows systems and patch management
Automate day to day network operations task.
This position requires a dynamic, hard-working and ambitious individual, with excellent oral and written communication skills
Security tool and problem analysis documentation; must be able to write and proof documents intended for technical and executive audiences.
Build / collaborate tools using Ansible/SCCM / Blade Logic / BAO to automate production support activities that enable efficiency and productivity
Mentoring several teams and stakeholders to the process changes and enhancements in the tools to increase self-service capabilities
Work in a time-sensitive environment; must be detail oriented and able to multitask to meet deadlines and company objectives
Continued support and partnership with Visa technology leadership / operations / engineering / development teams
Managing vulnerability tracking / patching systems and network and lead projects for continual improvements
Implement changes and requests to meet project deliverables within defined guidelines and low MTTR(mean time to resolve) for all customers
Automating server patch deployment, scripting and development of patching tools using python, PowerShell, C#.NET, RESTful API and building APIs for self-service
Automate network dy to day work, health check using Ansible and python.
Document and thoroughly understand the Ansible, SCCM / Blade Logic BSA application architecture, system configuration and interface with various teams and use this knowledge effectively to resolve issues
Achieve and understand Service Level commitments and resolution timelines for all requests
Develop solutions using available tools and technologies and assist the global team in problem resolution by hands-on participation.
Support the development and incorporation of best practices and approaches into the company´s processes and methodologies
Improve the efficiency by continual improvement in current processes with key goals to standardize, simplify, automate and commoditize.
Bachelor's degree in Computer Science/Engineering from an accredited university or related field is preferred
Experience working in large, complex, enterprise in data center environments
Must have 5+ years of Windows system administration and network automation experience
5-8 years solid experience in Scripting to include Python/PowerShell / VB Scripting / Batch scripting / ASP.NET
6+ years of expert level experience with Ansible, Blade Logic, BAO and SCCM in a 24*7 environment
2-3 years of experience in RESTful/SOAP API on both client and server side
2-3 years of experience in database / information management with complex requirements
- Languages: preferably Java/J2EE, Java Script, AJAX, JQuery, XML, JSP coding experience
- Databases: MySQL, MS Access, Oracle
- Version control – Git or bitbucket.
Application Management: Application Packaging, unit / integration testing and phased production release management
Software Updates: Patch Management experience (Downloading patches, testing, bundling of patches, deployment packages, troubleshooting patch)
Experienced in implementing ITIL concepts in addition to technical aptitude are highly valued
Experienced with security tools and their modules such as Qualys / Nessus for scanning infrastructure and applications for vulnerabilities, policy compliance and security assessments.
2-3 years of experience in Business Intelligence and reporting technologies such as Tableau / SSRS
Ability to write technical design and build documentation for all aspects of Windows Infrastructure
Excellent oral and written communication skills and strong inter-personal skills
Experience in supporting virtualization technologies such as VMWare/Hyper-V/Docker/kvm/
Experience in network automation.
Experienced in failover cluster management
Individual should be self-motivated with the ability to work independently
Sound planning, organizational and problem solving skills
Strong project management, coordination, presentation skills
Demonstrated ability to meet deadlines / MTTR(mean time to resolve) and commitments in an environment that requires multitasking among concurrent projects
All your information will be kept confidential according to EEO guidelines.