Administrador de Sistemas Operativos Win & UX

📍 Job Overview

Job Title: Administrador de Sistemas Operativos Win & UX

Company: DXC Technology

Location: Ciudad de México, Mexico

Job Type: Full time

Category: Infrastructure Operations / System Administration

Date Posted: 2026-10-03

Experience Level: Mid-Senior (4-10 years)

Remote Status: Hybrid

🚀 Role Summary

• Lead the administration, protection, and optimization of Windows and Linux operating systems across on-premises, private cloud, and public cloud environments.

• Drive security initiatives by analyzing vulnerabilities, defining mitigation plans, and executing patching cycles to reduce security risks.

• Implement and maintain robust security hardening standards, compliance policies, and contribute to audit remediation efforts.

• Automate operational processes and infrastructure deployments using tools like Ansible, Python, GitHub, and Rundeck to enhance efficiency and standardization.

• Collaborate cross-functionally with Infrastructure, Security, and CISO teams to ensure a secure and optimized technology infrastructure.

📝 Enhancement Note: This role is positioned as a Senior System Administrator with a strong emphasis on security operations and infrastructure optimization. The responsibilities clearly indicate a focus on managing and securing operating systems, which falls under Infrastructure Operations and System Administration within the broader IT operations landscape. The requirement for automation and compliance also aligns with modern GTM operations where efficiency and risk mitigation are paramount.

📈 Primary Responsibilities

• Administer and provide support for Linux (Red Hat, AIX, Solaris) and Windows Server operating systems across diverse environments including on-premises, private cloud, and public cloud.

• Implement and enforce security hardening (bastion) standards and ensure compliance with organizational security policies.

• Conduct thorough analysis of operating system vulnerabilities and develop/execute remediation plans to effectively reduce security risks.

• Collaborate closely with Security teams, CISO, and other technical departments to resolve audit findings and ensure regulatory compliance.

• Execute and coordinate system patching activities using platforms such as Satellite, WSUS, SCCM, or equivalent tools to maintain system integrity.

• Manage technological upgrade initiatives and address operating system obsolescence to ensure a modern and supported infrastructure.

• Design, develop, and implement automation solutions using tools like Ansible, Python, GitHub, Rundeck, or similar mass deployment solutions.

• Create comprehensive technical documentation, operational procedures, and remediation guides to standardize processes and facilitate knowledge transfer.

• Participate actively in change planning, post-implementation reviews, and continuous improvement activities to optimize system performance and reliability.

• Identify and implement opportunities for operational efficiency through automation and process optimization within security and infrastructure domains.

📝 Enhancement Note: The primary responsibilities highlight a blend of direct system administration, security-focused tasks, and proactive process improvement through automation. This is typical for a senior-level operations role where individuals are expected to not only maintain existing systems but also to enhance their security posture and operational efficiency. The emphasis on documentation and collaboration points to a role that requires strong communication and process governance skills.

🎓 Skills & Qualifications

Education:

• Professional certification in relevant technologies (Linux, Windows Server, Cloud, Security) is highly desirable.

• A Bachelor's degree in Computer Science, Information Technology, or a related field is preferred, though equivalent practical experience will be considered. Experience:

• 4 to 10 years of proven experience in administering enterprise-level Linux and/or Windows Server environments.

• Demonstrated experience in managing and remediating operating system vulnerabilities and implementing robust security hardening configurations.

• Hands-on experience with infrastructure environments spanning on-premises, private cloud, and public cloud platforms.

• Proven track record of executing system patching processes and managing update platforms.

• Experience with ITIL Foundation principles and their application in IT service management is a plus. Required Skills:

• Proficiency in Linux Red Hat and/or UNIX systems (AIX, Solaris) administration.

• Strong experience in Windows Server administration, including core roles and functionalities.

• Expertise in vulnerability management, security hardening (bastion), and compliance standards.

• Hands-on experience with automation tools such as Ansible, Python, GitHub, or Rundeck for infrastructure deployment and management.

• Ability to analyze complex technical problems, develop effective solutions, and work collaboratively within multidisciplinary teams.

• Intermediate to advanced technical English proficiency (B2 or higher) for documentation and communication. Preferred Skills:

• Relevant certifications in Linux, Windows Server, Cloud platforms (AWS, Azure, GCP), or Cybersecurity.

• Experience working within highly regulated industries or environments subject to rigorous compliance audits.

• Knowledge of infrastructure as code (IaC) principles and their application in automation.

• Experience in developing and utilizing security metrics for continuous improvement initiatives.

📝 Enhancement Note: The qualifications emphasize a strong technical foundation in both Linux and Windows server environments, coupled with essential security administration skills. The requirement for automation tools like Ansible and Python is critical for efficiency in modern IT operations. The inclusion of technical English proficiency and preferred certifications suggests a role that operates within a global or technically advanced organization. The "professional certificate" education requirement is noted, but typically, for a 4-10 year experienced role, a degree is often preferred or equivalent experience is accepted.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate successful implementation of security hardening standards across multiple operating systems and environments, showcasing adherence to best practices and compliance requirements.

• Provide case studies detailing the execution of vulnerability remediation projects, highlighting the process from identification to mitigation, and the impact on risk reduction.

• Showcase examples of automated deployment or management processes for operating systems or related services, illustrating the efficiency gains and standardization achieved.

• Present documentation of complex system upgrades or migrations, detailing the planning, execution, and successful outcome with minimal disruption. Process Documentation:

• Examples of well-defined operational procedures for system patching, including scheduling, execution, verification, and rollback strategies.

• Technical documentation for secure configurations (hardening guides) for both Windows and Linux environments, reflecting current security best practices.

• Workflow diagrams or descriptions illustrating the process for identifying, triaging, and remediating system vulnerabilities.

• Documentation of automation scripts or playbooks used for system provisioning, configuration management, or routine maintenance tasks.

📝 Enhancement Note: For a role focused on system administration with a strong security and automation component, a portfolio should showcase practical, hands-on experience. This includes evidence of managing complex systems, implementing security controls, and driving efficiency through automation. The documentation aspect is crucial, as it demonstrates the ability to codify processes and share knowledge within an operations team.

💵 Compensation & Benefits

Salary Range:

• For a mid-senior level System Administrator with 4-10 years of experience in Mexico City, the estimated annual salary range is between MXN $450,000 and MXN $750,000. This estimate is based on current market data for similar roles in the region, considering the technical expertise required in Linux/Windows administration, security hardening, and automation. Benefits:

• Comprehensive health insurance coverage, including medical, dental, and vision plans.

• Retirement savings plan (e.g., pension fund contributions).

• Paid time off, including vacation days, personal days, and national holidays.

• Opportunities for professional development, including training, certifications, and attendance at industry conferences.

• Life insurance and disability coverage.

• Potential for performance-based bonuses or incentives.

• Access to employee assistance programs for well-being and support. Working Hours:

• Standard full-time work schedule, typically 40 hours per week, with flexibility to accommodate project needs and operational demands. Occasional on-call duties or work outside standard hours may be required to support critical system maintenance or incident response.

📝 Enhancement Note: Given the location in Mexico City and the mid-senior experience level (4-10 years), a competitive salary range is estimated. The benefits listed are standard for a large technology organization like DXC Technology, aiming to attract and retain skilled IT professionals. The mention of on-call duties is common for system administration roles that require 24/7 system availability.

🎯 Team & Company Context

🏢 Company Culture

Industry: Information Technology and Services, specializing in IT Services and Consulting. DXC Technology is a global leader in delivering critical IT services and solutions that help clients modernize their operations, drive innovation, and accelerate digital transformation.

Company Size: DXC Technology is a large enterprise, employing over 50,000 people globally. This size indicates a structured environment with established processes, a wide range of career opportunities, and access to extensive resources.

Founded: DXC Technology was formed in 2017 through the merger of CSC and the enterprise services business of Hewlett Packard Enterprise. This background suggests a company with a rich history in IT services, blending established practices with a forward-looking approach to technology.

Team Structure:

• The role is part of the Security team, which supports clients in assessing risks and proactively managing their security environments. This team likely consists of specialists in various security domains, including threat intelligence, compliance, and infrastructure security.

• This position reports within the Infrastructure Operations or Security Operations unit, with a clear reporting line to a manager or team lead responsible for system administration and security.

• Close collaboration is expected with cross-functional teams such as broader IT Infrastructure, Cybersecurity Operations Center (SOC), CISO office, application support, and client-facing account teams. Methodology:

• The team emphasizes data-driven decision-making, leveraging analytics to identify vulnerabilities, assess risks, and measure the effectiveness of security controls.

• Workflow planning and optimization are key, with a focus on streamlining processes for patching, vulnerability remediation, and system deployments.

• Automation and efficiency practices are integral, utilizing tools like Ansible and Python to reduce manual effort, minimize errors, and ensure consistent application of security standards.

Company Website: https://www.dxc.com/

📝 Enhancement Note: Understanding DXC Technology's scale and focus on IT services and security is crucial. The team structure implies a collaborative environment where specialized knowledge is shared across different IT functions. The methodology highlights a commitment to modern IT operational practices, including data analysis, process optimization, and automation.

📈 Career & Growth Analysis

Operations Career Level: This position is defined as a Senior System Administrator, indicating a role that requires significant independent work, problem-solving capabilities, and the ability to mentor junior team members. The responsibilities extend beyond basic maintenance to include strategic contributions in security, automation, and process improvement, aligning with mid-to-senior career progression in IT operations.

Reporting Structure: The role likely reports to a Manager or Lead of System Administration or Security Operations. This manager would oversee a team responsible for maintaining and securing the client's IT infrastructure, reporting higher up within the IT or Cybersecurity leadership structure.

Operations Impact: The operations impact is significant, focusing on maintaining the stability, security, and efficiency of critical IT infrastructure for clients. By reducing vulnerabilities, ensuring compliance, and automating processes, this role directly contributes to minimizing security risks, improving system uptime, and enabling clients to achieve their digital transformation goals with confidence.

Growth Opportunities:

• Specialization: Potential to specialize further in cloud security, advanced automation engineering, or specific operating system expertise (e.g., deep Red Hat or AIX specialization).

• Leadership: Opportunity to move into team lead or management roles within System Administration or Security Operations, overseeing larger teams and more complex projects.

• Skill Development: Continuous learning in emerging security threats, new automation technologies, and cloud-native infrastructure management through provided training and certifications.

• Client-Facing Roles: Transition into roles that involve direct client consultation on infrastructure security and optimization strategies.

📝 Enhancement Note: The growth trajectory for a senior administrator in a large IT services company like DXC is typically structured. It involves deepening technical expertise, moving into leadership, or expanding into related operational areas like cloud or advanced security. The emphasis on client impact highlights the strategic value of this role.

🌐 Work Environment

Office Type: The job posting mentions "MX446 - DXC Mexico City Lago Alberto Wework (MX446)," indicating a hybrid work model. This likely means the role involves working from a co-working space or a designated DXC office location for a portion of the week, with the remainder of the time being remote. This setup often fosters a dynamic and collaborative environment.

Office Location(s): The primary location is Ciudad de México, Mexico, specifically at the Lago Alberto Wework facility. This location is likely well-equipped and provides access to networking and collaborative opportunities.

Workspace Context:

• The hybrid model encourages a balance between focused individual work at home and collaborative engagement at the office. This allows for flexible scheduling while ensuring team cohesion and in-person brainstorming.

• As part of a large technology company, access to robust IT infrastructure, collaboration tools (like Microsoft Teams, Slack), and necessary software licenses is expected.

• The office environment at a Wework facility typically offers modern amenities, meeting rooms, and a community of professionals, facilitating interaction with colleagues and potentially other DXC teams.

Work Schedule: The standard work schedule is 40 hours per week, aligning with full-time employment. The hybrid nature allows for some flexibility in managing the work week, balancing remote and in-office days, and potentially adjusting hours to meet project deadlines or personal needs, subject to team and management approval.

📝 Enhancement Note: The mention of "Wework" suggests a modern, flexible office environment. The hybrid nature of the role implies a need for strong self-management skills and the ability to collaborate effectively both in-person and remotely.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or HR representative will likely conduct an initial phone screen to assess basic qualifications, experience, and cultural fit. Be prepared to discuss your career path and interest in DXC Technology.

• Technical Interview(s): Expect one or more technical interviews with hiring managers and/or senior team members. These will delve into your experience with Linux/Windows administration, security hardening, vulnerability management, and automation tools. Prepare specific examples from your experience to illustrate your skills.

• Portfolio Presentation/Discussion: You may be asked to present specific projects from your portfolio, focusing on challenges faced, solutions implemented, and quantifiable results. Be ready to discuss your approach to process optimization and automation.

• Case Study/Problem-Solving Exercise: A technical challenge or case study might be presented, requiring you to outline a solution to a common system administration or security problem. Focus on your thought process, methodology, and proposed steps.

• Final Interview: This may involve a discussion with a higher-level manager to confirm cultural fit, career aspirations, and overall suitability for the role and the company.

Portfolio Review Tips:

• Select Impactful Projects: Choose 3-5 projects that best showcase your skills in Linux/Windows administration, security hardening, vulnerability remediation, and automation.

• Quantify Achievements: For each project, highlight measurable outcomes such as percentage reduction in vulnerabilities, time saved through automation, or improvement in system uptime.

• Structure Your Narrative: Use a STAR (Situation, Task, Action, Result) or similar method to clearly explain the context, your role, the actions you took, and the results achieved.

• Highlight Process & Tools: Detail the specific processes you followed and the tools (Ansible, Python, SCCM, etc.) you utilized.

• Demonstrate Problem-Solving: Focus on how you approached and overcame technical challenges.

Challenge Preparation:

• Review Core Concepts: Refresh your knowledge on Linux/Unix commands, Windows Server roles, TCP/IP networking, security best practices, and common automation scripting techniques.

• Scenario-Based Thinking: Practice outlining solutions for hypothetical scenarios, such as responding to a critical security alert, planning a large-scale OS upgrade, or automating a repetitive administrative task.

• Articulate Your Approach: Be prepared to explain your reasoning, justify your choices, and discuss potential trade-offs or alternative solutions.

📝 Enhancement Note: The interview process for a senior technical role like this will be rigorous, focusing on both technical depth and practical application. A well-prepared portfolio is essential, and candidates should be ready to articulate their contributions and problem-solving skills clearly and concisely.

🛠 Tools & Technology Stack

Primary Tools:

• Operating Systems: Windows Server (various versions), Linux (Red Hat Enterprise Linux, AIX, Solaris).

• Automation & Orchestration: Ansible, Python, GitHub (for version control), Rundeck.

• Patch Management: Satellite, WSUS (Windows Server Update Services), SCCM (System Center Configuration Manager), or similar enterprise patching solutions.

• Configuration Management: Tools for enforcing secure configurations and desired state.

Analytics & Reporting:

• Vulnerability Scanners: Tools like Nessus, Qualys, or Rapid7 for identifying system vulnerabilities.

• Monitoring Tools: Systems for tracking performance, health, and security events (e.g., Nagios, Zabbix, Prometheus, Splunk for log analysis).

• Reporting Platforms: Ability to generate reports from security scans, patch compliance status, and system performance metrics.

CRM & Automation:

• While not directly a CRM role, understanding how infrastructure issues can impact CRM systems (e.g., Salesforce, Dynamics 365) is beneficial.

• Integration Tools: Familiarity with how systems integrate, especially for automated workflows and data synchronization between different IT management platforms.

📝 Enhancement Note: The technology stack is central to this role. Proficiency in managing both Windows and Linux environments, coupled with strong skills in automation tools like Ansible and Python, is paramount. Experience with patch management systems and vulnerability assessment tools is also critical.

👥 Team Culture & Values

Operations Values:

• Security First: A commitment to prioritizing security in all system administration tasks, ensuring data integrity and protection.

• Operational Excellence: Striving for efficiency, reliability, and high availability in all managed systems through best practices and continuous improvement.

• Collaboration & Communication: Working effectively with diverse teams, sharing knowledge, and providing clear, timely updates on system status and security matters.

• Innovation & Automation: Embracing new technologies and automation solutions to streamline processes, reduce manual effort, and enhance operational capabilities.

• Accountability: Taking ownership of system responsibilities, from implementation to maintenance and incident response, and delivering on commitments.

Collaboration Style:

• Cross-Functional Integration: Actively partnering with Security, Infrastructure, CISO, and other IT teams to achieve shared objectives and resolve complex issues.

• Process Review Culture: Participating in regular reviews of operational procedures, security policies, and automation scripts to identify areas for enhancement and ensure alignment with evolving best practices.

• Knowledge Sharing: Contributing to a culture of shared learning by documenting processes, participating in team discussions, and mentoring junior colleagues.

📝 Enhancement Note: DXC Technology, as a global IT services provider, likely fosters a culture that values expertise, collaboration, and a commitment to client success. The operational values would align with industry best practices for IT service management and cybersecurity.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of Hybrid Environments: Managing and securing systems across on-premises, private, and public cloud infrastructures presents unique challenges in consistency and control.

• Evolving Threat Landscape: Staying ahead of sophisticated and rapidly evolving cybersecurity threats requires continuous learning and adaptation of security measures.

• Balancing Security and Performance: Implementing stringent security controls without negatively impacting system performance and user experience.

• Legacy System Management: Dealing with potential technical debt or legacy systems that may be more challenging to secure and automate.

Learning & Development Opportunities:

• Advanced Certifications: Pursuing certifications in cloud security (AWS Certified Security - Specialty, Azure Security Engineer Associate), advanced Linux administration (RHCE), or cybersecurity frameworks.

• Automation Specialization: Deepening expertise in scripting languages (Python) and configuration management tools (Ansible) through advanced training and practical application.

• Cloud Technologies: Gaining hands-on experience with major cloud provider platforms (AWS, Azure, GCP) and their security services.

• Mentorship Programs: Participating in or leading mentorship initiatives to share knowledge and develop leadership skills.

📝 Enhancement Note: The challenges presented are typical for senior roles in IT operations and security, requiring adaptability and continuous skill development. The growth opportunities are clearly aligned with industry trends and career progression paths in IT infrastructure and cybersecurity.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex vulnerability you identified and remediated in a production environment. What was your process, and what was the outcome?" (Focus on your analytical process, remediation steps, and impact measurement.)

• "How do you approach automating repetitive system administration tasks? Walk us through an example using Ansible or Python." (Highlight your automation strategy, tool selection, and efficiency gains.)

• "Imagine you need to implement a new security hardening standard across hundreds of servers. What steps would you take, and how would you manage the change and potential risks?" (Emphasize planning, phased rollout, testing, and communication.) Company & Culture Questions:

• "What do you know about DXC Technology's approach to IT services and security?" (Research DXC's mission, values, and recent news regarding their security offerings.)

• "How do you stay updated with the latest security threats and system administration best practices?" (Mention industry publications, conferences, online communities, and continuous learning.)

• "Describe a situation where you had to collaborate with a difficult stakeholder or team to achieve a technical objective." (Focus on your communication and conflict-resolution skills.) Portfolio Presentation Strategy:

• Structure: For each project, clearly define the context (Situation/Task), your specific role and actions (Action), and the measurable results (Result).

• Visuals: Use diagrams, screenshots, or code snippets where appropriate to illustrate complex systems or automation processes.

• Metrics: Quantify the impact of your work whenever possible (e.g., "Reduced patching time by 30%," "Mitigated X critical vulnerabilities," "Improved system uptime to 99.99%").

• Focus on Process: Explain not just what you did, but how you did it, detailing your methodology and decision-making process.

📝 Enhancement Note: Interview preparation should focus on demonstrating both technical expertise and a strategic, problem-solving approach. Being able to articulate past successes with quantifiable results and demonstrating an understanding of DXC's business context will be key.

📌 Application Steps

To apply for this operations position:

• Submit your application through the official DXC Technology careers portal via the provided link.

• Tailor your resume: Highlight your experience with Windows Server, Linux (Red Hat, AIX, Solaris), vulnerability management, security hardening, and automation tools (Ansible, Python). Use keywords from the job description to ensure ATS compatibility.

• Prepare your portfolio: Select 3-5 key projects that demonstrate your skills in system administration, security implementation, and automation. Be ready to discuss the challenges, your approach, and the quantifiable results achieved.

• Research DXC Technology: Understand their service offerings, company culture, and recent initiatives, particularly in the areas of IT services, security, and cloud solutions.

• Practice your technical explanations: Be ready to clearly articulate your experience with specific technologies and processes, using the STAR method for behavioral questions and detailing your problem-solving methodology for technical challenges.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.