Sr. Systems Administrator

Company Description

Visa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable and secure payments network, enabling individuals, businesses and economies to thrive.

When you join Visa, you join a culture of purpose and belonging - where your growth is priority, your identity is embraced, and the work you do matters. We believe that economies that include everyone everywhere, uplift everyone everywhere. Your work will have a direct impact on billions of people around the world - helping unlock financial access to enable the future of money movement.

**Join Visa: A Network Working for Everyone.**

Job Description

**Essential Functions**:
Provide Systems Administration to core Corporate IT Windows Server Platforms and Application like Citrix XenApp and XenDesktop for App and Desktop Virtualization. Active Directory Technologies, Microsoft Exchange 2016/2019 (on Premise) and O365 (Cloud).

Support the development and incorporation of best practices and approaches into the company´s processes and methodologies.

Participate in determination of root cause/solution analysis for service failure and support escalation.

Operate in complex, highly secure, and highly available, operations environments and interact with the technology domain experts required to maintain those environments.

Demonstrate a commitment to customer service, pro-active review of processes and procedures to continually enhance service quality, service delivery and support.

Willing to work closely with areas across Visa including, Operations, Engineering, Service Product office, and Global Open System Development Lines.

Execute decisive action to preserve and maintain service availability, performance, integrity, capacity and security.

Monitor incident queues, troubleshoot issues and lead conference calls with other groups to mitigate impacts.

Application performance and data optimization (including network optimization).

Will be expected to work weekends and/or on-call rotation.

Able to multitask and make decisions based on technical knowledge.

Motivated personality who is able to proactively identify additional ways to add value and contribute to a technical team.

Lead and collaborate with small to medium sized teams working in an onsite/offshore mode

Ensure team meets all SLA's and team objectives.

This is a hybrid position. Hybrid employees can alternate time between both home and office. Employees in hybrid roles are expected to work from the office three days a week, Monday (Sunday in some countries where Sunday is the start of the week) and Wednesdays. Wednesdays are designated as in-office collaboration days. The third day in the office will be decided based on team needs and determined in partnership with senior leadership.

Qualifications

Basic Qualifications:

- 4 years of work experience with a Bachelor’s Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD)

Preferred Qualifications:

- 7-10 years of systems administrator experience and a Bachelor’s Degree or 6 years of work experience with an Advanced Degree (e.g. Masters, MBA, JD, MD)
- Experience with Windows server 2019 (Core)/2016.
- Experience supporting virtual environments using VMWare 7.x and Microsoft Hyper-V, Citrix XenApp and XenDesktop for App and Desktop Virtualization, Active Directory Technologies, Microsoft Exchange 2013/2016 (on Premise) and O365 (Cloud).
- Must have strong commitment to execution, follow through and timely communication.
- Good problem solving skills with focus on troubleshooting issues in complex production environments.
- Willing to learn new technologies and software, thinking out of the box, questioning the norm and innovative.
- A good team player with excellent written/verbal communication and collaboration skills, with experience working in a global environment
- Experience supporting Physical servers (HP/DELL)
- Experience with Service Now, MS Azure, and O365, system health and performance monitoring tools as well as content replication tool Global SFTP, Repliweb

Additional Information

Visa has adopted a COVID-19 vaccination policy. As a condition of employment, all employees based in Singapore are required to be fully vaccinated for COVID-19, unless a reasonable accommodation is approved or as otherwise required by law.