Summary written by USA Jobs 24 from Mastercard's advert and our data on 17,030 current US jobs. How we check every job
At a glance
Mastercard is hiring a Security Monitoring and Response Analyst II in O'Fallon, MO. It is a full-time role in Software & IT, first listed on November 1. The advertised pay is $76,000–$127,000 a year. The description mentions Cybersecurity, SIEM, Python, Java, C++ and C#. Mastercard has 99 other openings in the US, 36 of them in O'Fallon, MO. Across all employers on USA Jobs 24 there are 16 Software & IT openings in O'Fallon, MO today; the typical one asks for 6 years and advertises about $186,000 a year at the midpoint.
How the pay compares
Mastercard advertises $76,000 to $127,000 a year, a midpoint of $101,500 a year. Where an offer lands in a range usually depends on experience and on the exact location. That is lower than about 89% of the 95 software & IT jobs in Missouri that publish a yearly rate on USA Jobs 24, where the typical midpoint is $180,000 a year. To see roughly what this leaves after federal and Missouri tax, try our take-home pay calculator.
Skills in this advert
How often each skill named in this advert appears across the 4,670 software & IT jobs we list today. Python is the most widely requested (31% of jobs), while SIEM is the least common (3%). Widely requested skills are what employers expect as a baseline; rarer ones show what is special about this job.
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Before you apply
- Check it is still open. We found this job on Mastercard's Workday site on November 1 and checked it again November 4, 5:17 AM ET. When an employer takes a job down, we remove it at our next daily update.
- Check the location works for you. This role is based in O'Fallon, MO. If you would need to move, ask whether relocation help is offered.
- Tailor your resume. Use the advert's own words, such as Cybersecurity, SIEM and Python, wherever they are true for you. Our resume guide shows how.
- Know your number. Decide the lowest offer you would accept before the first call. Our salary negotiation guide explains how to ask for more.
- Apply only through Mastercard's own site. Our Apply button goes straight to Mastercard's Workday page. If anyone contacts you about this job and asks for money, gift cards or bank details, stop and check it with our scam checker. Read how to spot a fake job offer.
About hiring at Mastercard
Mastercard has 100 openings on USA Jobs 24 today across 11 states. Most are in software & IT (24), product & design (17) and marketing (10). The biggest locations are Purchase, NY (44), O'Fallon, MO (37) and Arlington, VA (16). None of them is fully remote, none is marked entry level and 92% show pay. We collect Mastercard's jobs every day straight from its own careers system (Workday), never from job boards or agencies.
The employer's advert
This is Mastercard's own description of the job, copied word for word from its careers site. We have not edited it.
Show the full advert from MastercardHide the advert1,263 words
Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Security Monitoring and Response Analyst IIWho is Mastercard?Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Mission First, People Always
In Corporate Security, we are responsible for keeping Mastercard safe and secure from cyber and physical threats, and it is our people on the front line who make this happen every day.
By taking care of our people, their well-being, and their career development, we provide them with the necessary tools and environment to ensure the success of our mission.
Overview
The Security Event Management group is seeking a highly motivated and experienced security analyst specializing in Insider Threat.
As an Insider Threat Analyst, you will work within a broader security operations function, responding to cybersecurity events, identifying high-impact insider threats, and undertaking internal investigations.
You will monitor, research, assess, and analyze data and alerts from a suite of security tools, including DLP, EDR, SIEM, and user behavior analytics. You will follow defined investigative paths to ensure consistent resolution of often highly sensitive matters, and prepare and present analysis, findings, and recommendations through briefings and reports to security leads and other stakeholders, including senior legal, privacy, and executive stakeholders.
The role supports the development and enhancement of internal incident response capabilities, particularly those focused on insider threat monitoring and response. It also requires continual awareness of emerging insider threat tactics, techniques, and procedures (TTPs), industry trends, and technological advancements to help strengthen Mastercard’s overall Insider Threat capability and long-term resilience.
In this role you will:
• Work as an independent insider threat subject matter expert on often complex, high-risk, and highly sensitive cases, in compliance with Insider Threat policies, processes, procedures, and operating standards.
• Conduct technical analysis of user activity data and alerts to identify indicators of insider threats.
• Maintain the completeness and accuracy of the insider threat incident caseload.
• Analyze program trends, risks, and metrics to identify improvements and support leadership decisions.
• Support the enhancement of Insider Threat detection capabilities, controls, and countermeasures aligned to emerging TTPs.
• Liaise with Technology, Security, HR, Legal, Privacy, Compliance, and M&A partners to progress investigations.
• Identify control gaps and collaborate with engineering and operations peers to improve prevention and detection capabilities.
• Take part in exercises to test and strengthen Insider Threat capabilities, as necessary.
• Contribute to the Insider Threat Working Group.
• Collaborate with and mentor first-line analysts to embed key Insider Threat processes and procedures within their capabilities.
All About You
The ideal candidate for this position should have:
• A demonstrated ability to independently undertake confidential investigations involving employee activity while maintaining the highest standards of professionalism, discretion, objectivity, evidentiary integrity, and process compliance.
• Experience in security operations, incident response, insider risk, digital forensics, or related cybersecurity disciplines.
• An understanding of investigative methodologies, evidentiary handling, chain of custody, and detailed report writing, with the ability to influence stakeholders and explain complex technical matters to diverse audiences.
• An understanding of privacy, data protection, and regulatory considerations, including GDPR and related legislation.
• Experience with Data Loss Prevention, User Activity Monitoring, User Behavior Analytics, or related capabilities.
• Experience with Microsoft security technologies, including Microsoft Purview, Microsoft Defender / IRM, Microsoft Sentinel, and Endpoint DLP.
• Experience with Security Information and Event Management (SIEM) platforms and security event analysis.
• Working knowledge of Windows and macOS operating systems, including key architectural and investigative differences.
• Familiarity with threat hunting methodologies, open-source intelligence (OSINT), and cyber investigation techniques.
• Relevant industry certifications, such as CISSP, GCIH, GCIA, Security+, or equivalent, are desirable.
• Programming experience in at least one of PowerShell, Python, Shell/BASH scripting, Java, C/C++, C#, Perl, or other related languages is desirable.
Corporate Security Responsibility
Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks come with inherent risk to the organization; therefore, the successful candidate for this position is expected to:
• Abide by Mastercard’s security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach, and
• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
Abide by Mastercard’s security policies and practices;
Ensure the confidentiality and integrity of the information being accessed;
Report any suspected information security violation or breach, and
Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
Pay Ranges
O'Fallon, Missouri: $76,000 - $127,000 USDUSA Jobs 24 copied this listing from Mastercard's official careers site on November 1, 2026 and checked it again November 4, 5:17 AM ET. Mastercard will never ask you to pay to apply or to buy equipment with a check they send you. If anyone does, it is a scam.
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