206 IT Security jobs in Houston

Oxy is an international energy company with assets primarily in the United States, the Middle East and North Africa. We are one of the largest oil and gas producers in the U.S., including a leading producer in the Permian and DJ basins, and offshore Gulf of Mexico. Our midstream and marketing segment provides flow assurance and maximizes the value of our oil and gas. Our chemical subsidiary OxyChem manufactures the building blocks for life-enhancing products. Our Oxy Low Carbon Ventures subsidiary is advancing leading-edge technologies and business solutions that economically grow our business while reducing emissions. We are committed to using our global leadership in carbon management to advance a lower-carbon world. Visit oxy.com for more information.

Occidental strives to attract and retain talented employees by investing in their professional development and providing rewarding opportunities for personal growth. Our goal is to meet the highest employer standards by ensuring the health and safety of our employees, protecting the environment and positively impacting our communities where we do business.

Occidental strives to attract and retain talented employees by investing in their professional development and providing rewarding opportunities for personal growth. Our goal is to meet the highest employer standards by ensuring the health and safety of our employees, protecting the environment, and positively impacting communities where we do business.

We are looking for an experienced and highly motivated individual to fill the position of ICS Network Security Advisor within our IT ICS Security and Network Security group based in Houston, Texas.

Key Responsibilities:

The network security position will lead and be an innovator for network security solutions. The position will work closely with internal and external resources to design, deploy, standardize, maintain, and audit the industrial control systems (ICS) global network.

Qualifications - External

Required Qualifications:

• Bachelor's degree
• 5+ years experience in the network security field
• Extensive knowledge in routing, switching, firewalls, IDS/IPS, VPN technologies, logging configurations, authentication methods, network access control, Netflow, TCP/IP, routing protocols, load balancing, and network design
• Experience with designing and reviewing data flows for network segmentation solutions
• Experience with network packet analysis to resolve complex network and network security issues
• Ability to produce diagrams and documentations for large and complex network architectures
• Collaborate with key stakeholders to define, implement, and enforce network security standards
• Availability to provide 24X7 on-call support on a rotational basis

• Bachelor's degree in a technical field
• Experience supporting international networks
• Experience with scripting languages to automate workflows
• Experience with designing secure connectivity for IIoT technologies and cloud networks
• Experience with migrating legacy firewall rules to application based security policies
• Knowledge of cyber security frameworks such as NIST CSF, CIS, and Mitre ATT&CK
• Knowledge of the Oil and Gas industry and ICS networking
• Networking and/or Security Certifications are desirable such as CISSP, Cisco CCNP Security

• Design, implement, and manage security solutions and tools, including firewalls, intrusion detection/prevention systems (IDS/IPS), SIEM, EDR, and vulnerability management platforms.
• Conduct security assessments, penetration tests, and vulnerability scans to identify and remediate security weaknesses.
• Develop and enforce security policies, standards, and procedures in alignment with industry best practices and regulatory requirements (e.g., NIST, ISO 27001).
• Participate in incident response activities, including investigation, containment, eradication, and recovery from security incidents.
• Collaborate with IT and development teams to integrate security controls into new and existing systems and applications, adhering to Secure Software Development Life Cycle (SSDLC) principles.
• Perform security reviews of network architectures, cloud environments (AWS/Azure/GCP), and application designs.
• Monitor security logs and alerts for suspicious activity, performing threat analysis and intelligence gathering.
• Provide technical expertise and guidance on security-related matters to various internal teams.
• Manage security projects from conception to completion, ensuring timely delivery and adherence to budget.
• Stay current with emerging threats, vulnerabilities, and security technologies, recommending proactive countermeasures.
• Develop and deliver security awareness training to employees.
• Document security configurations, processes, and incident response procedures.
• Assist with compliance audits and ensure regulatory requirements are met.

• Bachelor's degree in Computer Science, Information Security, or a related engineering field.
• 4+ years of hands-on experience in information security engineering or architecture.
• Strong understanding of network security, operating systems (Windows, Linux), cloud security (Azure preferred), and application security principles.
• Proficiency with security tools such as SIEM (e.g., Splunk), vulnerability scanners (e.g., Nessus, Qualys), and endpoint protection solutions.
• Experience with scripting languages (e.g., Python, PowerShell) for automation is a plus.
• Relevant industry certifications (e.g., CISSP, CCSP, Security+, CySA+) are highly desirable.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Strong written and verbal communication skills, with the ability to explain complex technical concepts clearly.
• Ability to work independently and collaboratively in a fast-paced, dynamic environment.
• Knowledge of security frameworks (e.g., MITRE ATT&CK) and risk management methodologies.
• Experience with industrial control systems (ICS) security is a significant advantage.

Segra is searching for a dynamic and experienced Network Security Engineer II .

Role Overview:

The primary responsibilities of the Network Security Engineer II include providing Tier III support, standards development and maintenance, project support, and capacity planning and management of firewalls and other security technologies, products, and solutions supported by the Security Operations Center. The successful candidate will be an integral member of the security operations team and will need to be fully cognizant of state-of-the-art network, firewall, and other security technologies, products and solutions, as well as industry best practice with regard to the design, implementation and deployment of firewall solutions. The successful candidate should also have deep hands-on experience with firewalls, networking, and security technologies. Candidate will also maintain Segra's DDoS mitigation processes and procedures.

Required Qualifications:

• Must have a minimum of 5 years of experience in network security, such as firewall management, IDS, and IPS technologies.
• Must have proficiency Fortinet (FortiGate) experience.

Preferred Qualifications:

• Cisco Meraki is highly preferred
• Bachelor degree or equivalent combination of education and experience
• 5+ years supporting configuration and testing Firewall, IDS, and IPS technologies
• 5+ years of experience implementing/deploying Information Security Best Practices, Network Routing, Switching, and Security Design infrastructures

• 5+ years of experience in Networking and Network Operations
• 5+ years of experience in Troubleshooting & Analysis tools
• 5+ years of experience supporting Virtual Private Networking (VPNs)/MPLS VPN
• 5+ years of experience with system administration

Key Competencies:

• Evaluates and recommends solutions for highly complex security systems according to industry best practices to safeguard internal information systems and database
• Exceptional ability to work in a cooperative team environment to formulate complex technical solutions
• Ability to be available for on-call duties

• Excellent verbal and written communication skills
• Must possess and demonstrate excellent customer service skills
• Must be detail oriented with good organizational and time management skills
• Must be analytical and have proven problem solving abilities

About Segra:

Segra is one of the largest independent fiber network companies in the nation, able to offer state-of-the-art communication solutions backed by always-on customer service. We are known for our future-forward infrastructure and state-of-the-art voice and data technology solutions for businesses and the public sector, as well as wholesale transport services to some of the world's largest carriers. Our network features the latest advances in IP, ethernet, and dark fiber architectures, as well as high performance data centers. Furthermore, our network powers technology solutions such as hosted voice, security, and cloud.

Segra has engineered our entire company operations to put our customers at the very center of everything we do. We invest in the communities we serve by hiring locally and continually upgrading our network infrastructure. Segra has over 1200 employees, 500k+ on-net and near-net buildings, and 44k+ fiber-route miles. We exist purely to help businesses within our footprint be successful.

Benefits Overview:

Segra offers a very robust benefits package to our full-time employees, some of which include:

• Medical, dental, vision insurance
• Life insurance
• 401(k) match
• Flexible Spending/Health Savings Accounts
• Tuition and gym reimbursements
• Vacation/PTO, paid holidays, floating holidays
• Volunteer days, parental leave
• Legal, accidental, hospital indemnity, identify theft, pet insurance

Our Commitment to Equality:

Segra is an equal opportunity employer and prohibits discrimination of any kind. Segra does not discriminate on the basis of race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, or other non-merit factor.

Job Type

Full-time

Description

Binary Defense is seeking a client-facing Network Security Engineer to serve as a hands-on contributor within a clients' Security Engineering function. This is a technical position responsible for the full-scope configuration, change management, and implementation of a client's micro segmentation and firewall policies.

You'll play a key role in expanding capabilities with leading tools in the client's environment such as Akamai Guardicore and Firemon. This role requires deep technical expertise, strong cross-functional communication, and the ability to deliver secure policy enforcement at scale while mitigating any impact on business operations.

Key Responsibilities

• Lead client technical policy definitions and the optimization of Guardicore and Firemon capabilities

• Analyze network traffic to determine appropriate traffic patterns

• Build allowlists and blocklists for network traffic

• Analyze technical policies to determine appropriate rulesets

• Complete integrations with other tools, if requested

• Create and document operational processes, including existing process and proposed process

• Document architecture

Requirements

• 5+ years of experience in security engineering and architecture roles

• Strong Network background with a focus on Security

• Deep understanding of common network ports and protocols in an enterprise environment

• Familiarity with the latest trends in attacker TTPs

About Binary Defense

Binary Defense is a trusted leader in security operations, supporting companies of all sizes to proactively monitor, detect and respond to cyberattacks. The company offers a personalized Open XDR approach to Managed Detection and Response, advanced Threat Hunting, Digital Risk Protection, Phishing Response, and Incident Response services, helping customers mature their security program efficiently and effectively based on their unique risks and business needs.

With a world-class 24/7 SOC, deep domain expertise in cyber, and sophisticated technology, hundreds of companies across every industry have entrusted Binary Defense to protect their business. Binary Defense gives companies actionable insights within minutes not hours, the confidence in their program to be resilient to ever-changing threats, and the time back that matters most to their business.

Binary Defense is also the Trusted Cybersecurity Partner of the Cleveland Browns and partners with PGA TOUR players. For more information, visit our website , check out our blog , or follow us on LinkedIn .

Binary Defense offers competitive medical, dental and vision coverage for employees and dependents, a 401k match which vests every payroll, a flexible and remote friendly work environment, as well as training opportunities to expand your skill set (to name a few!). If you're interested in joining a growing team with great perks, we encourage you to apply!

Wipro Limited (NYSE: WIT, BSE: 507685, NSE: WIPRO) is a leading technology services and consulting company focused on building innovative solutions that address clients' most complex digital transformation needs. Leveraging our holistic portfolio of capabilities in consulting, design, engineering, and operations, we help clients realize their boldest ambitions and build future-ready, sustainable businesses. With over 230,000 employees and business partners across 65 countries, we deliver on the promise of helping our customers, colleagues, and communities thrive in an ever-changing world. For additional information, visit us at

Job Description

Experience/Skills:
• Must have proficiencies:

o Expert - securing & managing Palo Alto Firewalls & Prisma Access

o Expert - network security standards, methodologies, and best practices

o Expert - knowledge of network-based vulnerabilities, threats, and risks

o Understanding of networking protocols and services

o Advanced knowledge of network access control (NAC) solutions and methodologies

o 5+ years experience in network security operations and design
• Nice to have proficiencies:

o Forescout network access control

o Web Application Firewall (F5 and/or Cloudflare)

o Secure routing & switching

o Scripting, automation & orchestration

o Threat Hunting

o Cisco ISE / RADIUS authentication

o Data center segmentation technologies

o Network authentication methodologies (PSK, certificates, SAML, etc.)

Competencies:
• Must have a security mindset, well versed in general security principles and best practices.
• Ability to communicate in English clearly and effectively, both orally and in writing.
• Professional security certifications are a plus. (CISSP, GIAC, CEH, etc.)
• Ability to work within a team and with limited direction and guidance.
• Strong analytical, organizational, troubleshooting and time management skills.
• Effective troubleshooting and problem-solving skills.

͏

Do

1. Design and develop enterprise cyber security strategy and architecture

a. Understand security requirements by evaluating business strategies and conducting system security vulnerability and risk analyses

b. Identify risks associated with business processes, operations,

information security programs and technology projects

c. Identify and communicate current and emerging security threats and design security architecture elements to mitigate threats as they emerge

d. Identify security design gaps in existing and proposed architectures and recommend changes or enhancements

e. Provide product best fit analysis to ensure end to end security covering different faucets of architecture e.g. Layered security, Zoning, Integration aspects, API, Endpoint security, Data security, Compliance and regulations

f. Demonstrate experience in doing security assessment against NIST Frameworks, SANS, CIS, etc.

g. Provide support during technical deployment, configuration, integration and administration of security technologies

h. Demonstrate experience around ITIL or Key process-oriented domains like incident management, configuration management, change management, problem management etc.

i. Provide assistance for disaster recovery in the event of any security breaches, attacks, intrusions and unusual, unauthorized or illegal activity

j. Provide solution of RFP's received from clients and ensure overall design assurance

͏

i. Develop a direction to manage the portfolio of to-be-solutions including systems, shared infrastructure services, applications, hardware related to cyber risk security in order to better match business outcome objectives

ii. Analyse technology environment, enterprise specifics, client requirements to set a collaboration design framework/ architecture

iii. Depending on the client's need with particular standards and technology stacks create complete RFPs

iv. Provide technical leadership to the design, development and implementation of custom solutions through thoughtful use of modern technology

v. Define and understand current state solutions and identify improvements, options & tradeoffs to define target state solutions

vi. Clearly articulate and sell architectural targets, recommendations and reusable patterns and accordingly propose investment roadmaps

vii. Evaluate and recommend solutions to integrate with overall technology ecosystem

viii. Tracks industry and application trends and relates these to planning current and future IT needs

͏

2. Stakeholder coordination & audit assistance

a. Liaise with stakeholders in relation to cyber security issues and provide timely support and future recommendations

b. Provide assistance in maintaining an information security risk register and help with internal and external audits relating to information security

c. Support audit of security best practices and implementation of security principles across the organization, to meet business goals along with customer and regulatory requirements

d. Assist with the creation, maintenance and delivery of cyber security awareness training to team members and customers

e. Provide training to employees on issues such as spam and unwanted or malicious emails

͏

Deliver
No Performance Parameter Measure 1 Customer centricity Timely security breach solutioning to end users, Internal stakeholders & external customers experience, CSAT, educating and suggesting right control to the customers. 2 Support sales team to create wins % of proposals with Quality Index >7, timely support of the proposals, identifying opportunities/ leads to sell services within/ outside account (lead generation), no. of proposals led

Mandatory Skills: Palo Alto Networks - Firewalls.

Experience: 8-10 Years.

Expected annual pay for this role ranges from $80,000 to $1,58,000 . Based on the position, the role is also eligible for Wipro's standard benefits including a full range of medical and dental benefits options, disability insurance, paid time off (inclusive of sick leave), other paid and unpaid leave options.

Reinvent your world. We are building a modern Wipro. We are an end-to-end digital transformation partner with the boldest ambitions. To realize them, we need people inspired by reinvention. Of yourself, your career, and your skills. We want to see the constant evolution of our business and our industry. It has always been in our DNA - as the world around us changes, so do we. Join a business powered by purpose and a place that empowers you to design your own reinvention. Come to Wipro. Realize your ambitions. Applications from people with disabilities are explicitly welcome.

If you encounter any suspicious mail, advertisements, or persons who offer jobs at Wipro, please email us at Do not email your resume to this ID as it is not monitored for resumes and career applications.

Any complaints or concerns regarding unethical/unfair hiring practices should be directed to our Ombuds Group at .

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, caste, creed, religion, gender, marital status, age, ethnic and national origin, gender identity, gender expression, sexual orientation, political orientation, disability status, protected veteran status, or any other characteristic protected by law.

Wipro is committed to creating an accessible, supportive, and inclusive workplace. Reasonable accommodation will be provided to all applicants including persons with disabilities, throughout the recruitment and selection process. Accommodations must be communicated in advance of the application, where possible, and will be reviewed on an individual basis. Wipro provides equal opportunities to all and values diversity.

2 days ago Be among the first 25 applicants Direct message the job poster from KTek Resourcing Job Title: Subject Matter Expert—Digital Network & Security Location: Onsite-Hybrid: Houston, TX Job Type: Contract Job Description: Must have: NSE 4 certification & Cisco ASA. Core Competency Networking with 10 years of experience—networking, Switching, Routing & Firewalls. NSE 4 Certified Cisco to Fortinet migration experience CCNA/CCNP certified. Excellent Communication and Stakeholder management skills Additional Info: Knowledge and understanding of Load Balancing, Firewalls, and IPSs. Knowledge and understanding of Cisco ASAs, Fortinet Firewalls, and switches. Knowledge and understanding of SD-WAN architecture. Knowledge of Private VLANs, RSPAN, and advanced switching technologies Knowledge in wireless bridges like Fluid Mesh and Ubiquity LAN/WAN systems, networks, and applications. Analytical, technical, and problem-solving skills and abilities. Experience working as part of a team in a project-centered environment. IPSec and SSL VPN in depth knowledge Ability to effectively communicate information to peers, remote users, and management. Having knowledge of monitoring tools like Splunk and NetScout Having knowledge in automation using SOAR and Python is an added advantage. Seniority level Seniority level Mid-Senior level Employment type Employment type Contract Job function Industries IT Services and IT Consulting Referrals increase your chances of interviewing at KTek Resourcing by 2x Get notified about new Network Security Engineer jobs in Houston, TX . Houston, TX $110,000 - $130,000 3 weeks ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr

Mainframe Security EngineerRemote - United StatesJR011549

About the role and what you'll be doing:

Job Description Summary:

This is a Mainframe Security Administration position, working on IBM z/OS operating systems. Experience using TSO, JCL, ISPF, JES2, and IBM Utilities will be required.

A passing of a Federal Background Check is required for this position.

• Hands-on security administration experience with RACF, ACF2 and Top-Secret logon ID's, datasets, and resource rules.

• Top Secret security administration experience required for this position, ACF2 and RACF experience desired.

• Provision user access in response to tickets opened in Service Now within defined SLAs.

• Monitor system security policy and violations/incidents.

• Perform and review daily, weekly, and monthly audit reports.

• Liaison with business areas and other technical support areas.

• Provide customer support by preparing ad hoc reports and giving presentations.

• Monitors the environment for adherence to security standards.

• Must be available 24 x 7. On-call support will be required.

• Experience using Vanguard and/or IBM zSecure security products.

• iSeries security knowledge a plus.

Technical Skills:

• Excellent TSO, JCL, IBM UTILITIES, JES2, and ISPF a must.

• Experience with REXX or any programming language is desired.

• Experience with CICS security administration preferred.

• Experience using Vanguard and/or IBM zSecure security products is desired.

• Experience with IAM, MFA and PAM is desired.

General Knowledge:

• z/OS experience is highly desired

• PC Skills (Microsoft Outlook, Word, Excel, PowerPoint)

Personal Skills:

• Strong written and verbal communication skills.

• Strong organisational skills with the ability to manage multiple concurrent project deliverables and the ability to work as a global team.

• Ability to work on own initiatives.

• Strong analytical skills and problem-solving skills

• Must be an excellent team player with the ability to work independently in a fast-paced environment

• Self-starter, detail-oriented and ability to multitask

• Excellent Communication skills required

• Good written skills are required

Education:

• CISSP, CISA, CISM or ITIL Certification a plus

• Bachelor's or master's degree preferred

• Other mainframe security products a plus

Why Ensono?

Ensono is a place to make better happen - for our clients and for your career. You can do great things through innovation or collaboration, by learning or volunteering, or to promote diversity and inclusion. You can do great things for your own health or for a healthier planet. Whatever it means to you to do great things we want Ensono to be the place you can do it.

We are a client-facing business, but we do encourage clients to allow us to work remotely most of the time so if you are not required to be on a client site, you can choose to work from home or in our Ensono offices.

Some of our benefits include:

• Unlimited Paid Days Off

• Three health plan options through Blue Cross Blue Shield

• 401k with company match

• Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts

• Paid Maternity Leave, Paternity Leave, and Sabbatical Leave

• Education Reimbursement, Student Loan Assistance or 529 College Funding

• Enhanced fertility coverage

• Wellness program

• Depending on location, ability to take Flexible work schedule

• Advantage of fitness centers

As of the date of this posting, a good faith estimate of the current pay scale for this role is $75,000 to $123,000 annually based on a full-time schedule. Please note that placement in the range may vary based on numerous factors including but not limited to skills, experience, internal equity, and business needs. In addition to base salary, other compensation programs, depending on eligibility, include an annual bonus plan based on company and individual performance and an equity grant under our Associate Equity Appreciation Program.

Ensono is an Equal Opportunity/Affirmative Action employer. We are committed to providing equal employment to our Associates and building a diverse and inclusive workforce. All qualified applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or other legally protected basis, in accordance with applicable law.

Pay transparency nondiscrimination statement/posting OFCCP's pay transparency policy can be found onOFCCP's website ( .

If you need accommodation at any point during the application or interview process, please let your recruiter know or email .

JR011549