Senior IT Security & SaaS Operations Engineer

Company at a GlanceOpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At OpenX, we have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
Company at a GlanceOpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At OpenX, we have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
If you’re:Open-minded - happy to give & receive feedback, not afraid to fail, and move onProactive - always want to find a satisfying solutionSelf-organized and self-motivatedWe want to talk to you

Responsibilities:

• Primary Focus – IT Security Operations & SaaS Optimization (60%)
• Develop, implement, and continuously improve IT security operations, with a strong focus on SaaS application security, event monitoring, and log analysis.
• Design, build, and maintain security automations to efficiently detect and remediate threats, reducing time spent on false positives and repetitive manual reviews.
• Optimize security configurations, workflows, and policies across our cloud applications and endpoints (MacOS, Windows), balancing security with usability.
• Provide actionable recommendations and creative workarounds when budget or tooling limitations exist, ensuring ongoing risk reduction.
• Lead or participate in security incident response, investigations, and post-incident reviews; coordinate vulnerability management and remediation.
• Partner with IT leadership and business stakeholders to align security improvements with company goals.


• Onboarding & IT Support (25%):
• Deliver exceptional onboarding experiences for new employees, ensuring timely and secure access to systems and SaaS platforms.
• Respond to general IT support requests, troubleshooting user access, application, and endpoint issues, and escalating as necessary.
• Serve as a knowledgeable resource for SaaS, identity, and endpoint management questions, including Google Workspace, Okta, MS365, Jamf, and InTune.


• Ad-Hoc and Cross-Functional IT Support (15%)
• Provide support for urgent or special projects, such as new system integrations, IT audits, compliance initiatives, and cross-functional IT-business partnership needs.
• Represent IT in meetings with other departments, helping to translate business requirements into technical solutions.
• Contribute to documentation, policy updates, and knowledge sharing to raise security awareness and technical maturity across the organization.

Required Qualifications:

• 3+ years of hands-on experience in IT security operations, SaaS application management, or similar technical support roles.
• Demonstrated experience building or optimizing security automations and log/event monitoring (e.g., SIEM, custom scripting, or similar tools).
• 3+ years of experience with MDM tools (preferably Jamf and Intune), including both support and security optimization.
• Practical knowledge of Google Workspace, Okta, MS365 user lifecycle management and SaaS security controls.
• Experience supporting endpoint security (e.g., CarbonBlack or similar), as well as identity & access management (IAM) and single sign-on (SSO) technologies.
• IT Security certification(s) required (e.g., Security+, SSCP, CISSP, or equivalent).
• Strong understanding of cloud security principles, network security, and modern best practices for securing SaaS environments.
• Experience conducting security audits, vulnerability assessments, and incident investigations in regulated environments (SOC2 preferred).
• Effective troubleshooting, problem-solving, and communication skills; able to explain complex technical concepts to non-technical users.
• Ability to work independently, prioritize effectively, and drive continuous improvement—even when resources or budgets are constrained.
• Familiarity with automation tools or scripting (Windows and Mac), flowcharts & diagramming.
• Tolerance for repetitive/manual tasks, with a drive to automate and optimize processes.

Desired Qualifications:

• Experience in a global, multi-time-zone company.
• Experience with Atlassian Jira Service Desk, Confluence, and modern ticketing platforms.
• Hands-on experience supporting MacOS and Windows endpoints, including zero-touch deployment.
• Exposure to cloud migrations, system integrations, or business process automation projects.
• Strong interpersonal skills; comfortable representing IT to business partners and external vendors.

What we offer:

• Employment contract (88 541 - 98 958 MXN $ gross/monthly)
• Working with the newest technologies such as Cloud Computing (GCP)
• Challenges at work that are difficult to find anywhere else!
• Solving important problems in a scale
• Joining a company that is growing and scaling
• Flexible working hours & remote work option

OpenX VALUESOur five company values form a solid bedrock serving to define us as a group and guide the company. Our values remind us that how we do things often matters as much as what we do.
WE ARE ONEWe are one team. There are no exceptions. We are a group of strong and diverse individuals unified by a shared mission. We embrace challenges and win together as a team. We respect and care about our colleagues and cultivate an inclusive culture
WE ARE CUSTOMER CENTRICWe innovate on behalf of our customers. We understand, respect, and listen carefully to our customers. We build great products to solve our customers’ problems. We manage our customers’ expectations clearly and honestly. We are a trusted partner to all of our customers - we act with integrity at all times. We care.
OPENX IS OURSWe are all owners of OpenXWe all have a voice to improve OpenXWe stake our personal and professional reputations on the excellence of our workWe are not interested in just "doing our jobs"; we take ownership to drive results
WE ARE AN OPEN BOOKWe understand and respect what each of us does. We are eager to teach and share what we know with others, both internally and externally. We are eager to learn from others and we ask questions internally and externally. 
WE EVOLVE FASTWe take responsible risks and own and learn from our mistakes. We recognize and repeat success. We actively seek out and provide constructive feedback. We adapt quickly and embrace change. We tackle growth and learning with real urgency. We are endlessly curious.
OpenX TRAITSOur three traits capture what makes a great team member at OpenX.
HUMBLEIdeal team players are humble and demonstrate integrity. They put the team's success above their own, share credit generously, and value collective achievements. They are self-assured, open to coaching, and committed to continuous learning.
DRIVENIdeal team players are results-driven and motivated. They are curious, always seeking more to do, learn, and take on. As proactive problem-solvers, they take initiative without needing external motivation. They continuously think about the next steps and opportunities for improvement.
SMARTIdeal team players are smart and possess the intellectual acumen to understand the complexities of our organization and industry. They are interpersonally intelligent, good communicators, and exemplify sound judgment in their interactions across the company to foster a collaborative environment.
OpenX is committed to equal employment opportunities. It is a fundamental principle at OpenX not to discriminate against employees or applicants for employment on any legally-recognized basis including, but not limited to: age, race, creed, color, religion, national origin, sexual orientation, sex, disability, predisposing genetic characteristics, genetic information, military or veteran status, marital status, gender identity/transgender status, pregnancy, childbirth or related medical condition, and other protected characteristic as established by law.
OpenX Applicant Privacy PolicyApplicants can review our Applicant Privacy Policy at any time by visiting the following link: https://www.openx.com/privacy-center/applicant-privacy-policy/. Effective Date of the Privacy Policy: November 21, 2024