Senior Systems Administrator Jobs in Plano, TX
Senior Systems Administrator jobs in Plano, Texas are available now at employers like Sally Beauty, Cheil, and itecs and other local employers, from entry level to senior. Find a role that fits below and apply directly.
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Showing 5 of 18+ Senior Systems Administrator jobs
Are you looking to Optimize your life? Start your exciting path to a rewarding career today!
We are Optimum, a leader in the fast-paced world of connectivity, and we're seeking driven and enthusiastic professionals to join our team, empower lives, fuel businesses, and drive innovation. Connectivity is now longer a luxury, but a necessity. A career at Optimum means you'll be enabling progress and enhancing lives by providing reliable, high-speed connectivity solutions that keep the world connected. Our successes, now and in the future, are powered by our amazing product, a commitment to our people and culture, and the connections we make in our communities.
If you are resourceful, collaborative, and passionate about delivering consistent excellence, Optimum is for you!
Job Summary
The IT Security Engineer position is responsible for maintaining security operations and troubleshooting escalations from Service Desk. Primary duties include providing tier-3 support, resolving security incidents and requests, and implementing configuration changes. The security engineer responds in a timely manner to security incidents including loss, misuse or potential compromise of information assets. This position will implement and assist with security technology projects as needed.
Responsibilities
- Daily operation, log review, incident response, administration of firewalls, TACACS, IDS/IPS and other security infrastructure.
- Respond in a timely manner to security incidents including loss, misuse or potential compromise of information assets.
- Support security technologies such as Firewalls, VPN, IDS/IPS, SIEM, DLP, Wireless, SSL VPN, and Content Filtering.
- Implement and monitor security events for routers/switches, servers, operating systems, databases, applications and other technologies.
- Assist with analysis of logs to identify anomalies and unauthorized use or access.
- Participate and provide support in security incident emergency response activities including internal violations, attacks, and system outages.
- Maintain information security diagrams, guidelines, and other technical documents.
- Assist in the implementation of security technology projects.
- Simultaneously handles multiple tasks and interactions.
- Ability to work an on call rotation.
- Ability to multi-task, prioritize and organize effectively.
Qualifications
- Bachelor's degree in Information Technology, related field or equivalent experience
- 3-5 years hands on experience with a variety of firewall and security products
- Network and security troubleshooting experience
- Experience with network based intrusion detection techniques
- Knowledge of standard internet protocols such as HTTP, FTP, SNMP, SMTP, DNS, POP3, IMAP, SSH, TELNET
- Strong people and relationship management skills
- Ability to work with minimal supervision on short term projects
- Security certifications a plus (ex. CISSP, CEH, OSCP, GISP, GCIH, GPEN, and CCSP)
- Experience with next generation enterprise-level Cisco firewalls are a plus
- Experience with Web Application Firewalls is a plus
- Experience with Endpoint Protection is a plus
At Optimum, every action and interaction we take part in, is driven by our three Guiding Principles: Do What’s Right, Drive One Optimum, and Make It Happen. These aren’t just words, they help us build trust, create real community, and embrace new ways of thinking. Our employees are empowered to do the right thing for our customers and co-workers and to recognize and reward these behaviors when we see them. It’s all part of the bigger picture of “Be The Difference” where each employee knows they have the power to enact real change, share new ideas, and understand that learning never stop.
If you have the drive to succeed and are ready to embark on a thrilling career, seize this opportunity today, and join our winning team. Together, we'll shape the future of connectivity.
All job descriptions and required skills, qualifications and responsibilities for a particular position are subject to modification by the Company from time to time, in the Company’s discretion based on business necessity.
We are an Equal Opportunity Employer committed to recruiting, hiring and promoting qualified people of all backgrounds regardless of gender, race, color, creed, national origin, religion, age, marital status, pregnancy, physical or mental disability, sexual orientation, gender identity, military or veteran status, or any other basis protected by federal, state, or local law.
The Company collects personal information about its applicants for employment that may include personal identifiers, professional or employment related information, photos, education information and/or protected classifications under federal and state law. This information is collected for employment purposes, including identification, work authorization, FCRA-compliant background screening, human resource administration and compliance with federal, state and local law.
Applicants for employment with The Company will never be asked to provide money (even if reimbursable) as part of the job application or hiring process. Please review our Fraud FAQ for further details.
Pay is competitive and based on a number of job-related factors, including skills and experience. The starting pay rate/range at time of hire for this position in New York is $83,538.00 - $137,241.00 / year. For other locations, please inquire with your recruiter. The rates/ranges provided herein are the anticipated pay at the time of hire, and do not reflect future job opportunity.
Are you looking to Optimize your life? Start your exciting path to a rewarding career today!
We are Optimum, a leader in the fast-paced world of connectivity, and we're seeking driven and enthusiastic professionals to join our team, empower lives, fuel businesses, and drive innovation. Connectivity is now longer a luxury, but a necessity. A career at Optimum means you'll be enabling progress and enhancing lives by providing reliable, high-speed connectivity solutions that keep the world connected. Our successes, now and in the future, are powered by our amazing product, a commitment to our people and culture, and the connections we make in our communities.
If you are resourceful, collaborative, and passionate about delivering consistent excellence, Optimum is for you!
Job Summary
The IT Security Engineer position is responsible for maintaining security operations and troubleshooting escalations from Service Desk. Primary duties include providing tier-3 support, resolving security incidents and requests, and implementing configuration changes. The security engineer responds in a timely manner to security incidents including loss, misuse or potential compromise of information assets. This position will implement and assist with security technology projects as needed.
Responsibilities
- Daily operation, log review, incident response, administration of firewalls, TACACS, IDS/IPS and other security infrastructure.
- Respond in a timely manner to security incidents including loss, misuse or potential compromise of information assets.
- Support security technologies such as Firewalls, VPN, IDS/IPS, SIEM, DLP, Wireless, SSL VPN, and Content Filtering.
- Implement and monitor security events for routers/switches, servers, operating systems, databases, applications and other technologies.
- Assist with analysis of logs to identify anomalies and unauthorized use or access.
- Participate and provide support in security incident emergency response activities including internal violations, attacks, and system outages.
- Maintain information security diagrams, guidelines, and other technical documents.
- Assist in the implementation of security technology projects.
- Simultaneously handles multiple tasks and interactions.
- Ability to work an on call rotation.
- Ability to multi-task, prioritize and organize effectively.
Qualifications
- Bachelor's degree in Information Technology, related field or equivalent experience
- 3-5 years hands on experience with a variety of firewall and security products
- Network and security troubleshooting experience
- Experience with network based intrusion detection techniques
- Knowledge of standard internet protocols such as HTTP, FTP, SNMP, SMTP, DNS, POP3, IMAP, SSH, TELNET
- Strong people and relationship management skills
- Ability to work with minimal supervision on short term projects
- Security certifications a plus (ex. CISSP, CEH, OSCP, GISP, GCIH, GPEN, and CCSP)
- Experience with next generation enterprise-level Cisco firewalls are a plus
- Experience with Web Application Firewalls is a plus
- Experience with Endpoint Protection is a plus
At Optimum, every action and interaction we take part in, is driven by our three Guiding Principles: Do What’s Right, Drive One Optimum, and Make It Happen. These aren’t just words, they help us build trust, create real community, and embrace new ways of thinking. Our employees are empowered to do the right thing for our customers and co-workers and to recognize and reward these behaviors when we see them. It’s all part of the bigger picture of “Be The Difference” where each employee knows they have the power to enact real change, share new ideas, and understand that learning never stop.
If you have the drive to succeed and are ready to embark on a thrilling career, seize this opportunity today, and join our winning team. Together, we'll shape the future of connectivity.
All job descriptions and required skills, qualifications and responsibilities for a particular position are subject to modification by the Company from time to time, in the Company’s discretion based on business necessity.
We are an Equal Opportunity Employer committed to recruiting, hiring and promoting qualified people of all backgrounds regardless of gender, race, color, creed, national origin, religion, age, marital status, pregnancy, physical or mental disability, sexual orientation, gender identity, military or veteran status, or any other basis protected by federal, state, or local law.
The Company collects personal information about its applicants for employment that may include personal identifiers, professional or employment related information, photos, education information and/or protected classifications under federal and state law. This information is collected for employment purposes, including identification, work authorization, FCRA-compliant background screening, human resource administration and compliance with federal, state and local law.
Applicants for employment with The Company will never be asked to provide money (even if reimbursable) as part of the job application or hiring process. Please review our Fraud FAQ for further details.
Pay is competitive and based on a number of job-related factors, including skills and experience. The starting pay rate/range at time of hire for this position in New York is $83,538.00 - $137,241.00 / year. For other locations, please inquire with your recruiter. The rates/ranges provided herein are the anticipated pay at the time of hire, and do not reflect future job opportunity.
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Find JobsSenior Systems Administrator Job Market in Plano
Who's Hiring
- Sally Beauty4
- Cheil1
- itecs1
- Integer1
- Optimum1
Top Industries Hiring
- Retail4
- Insurance2
- Banking & Financial Services2
- Medical Devices1
- Staffing & Recruiting1
Senior Systems Administrator Jobs in Plano: Frequently Asked Questions
How many senior systems administrator jobs are there in Plano?
There are 18+ senior systems administrator openings in Plano, Texas on Migrate Mate as of June 2026. New positions post regularly as Plano employers hire.
Which companies hire senior systems administrators in Plano?
Employers hiring senior systems administrators in Plano include Sally Beauty, Cheil, and itecs, based on current listings on Migrate Mate as of June 2026.
Are there remote senior systems administrator jobs in Plano?
Yes. About 40% of senior systems administrator openings tied to Plano are remote or hybrid as of June 2026. The rest are on-site roles based in and around Plano.
Which industries hire the most senior systems administrators in Plano?
The sectors hiring the most senior systems administrators in Plano are Retail, Insurance, and Banking & Financial Services, based on current listings on Migrate Mate as of June 2026.
Related Jobs in Texas
See All 18 Senior Systems Administrator Jobs in Plano
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