Senior Security Analyst — Remote Threat & Incident Response

Netrix LLC; Buenos Aires; Presencial; Jornada completa

Descripción del empleo

About The Opportunity

Netrix Global is looking for a Senior Security Analyst for the Managed Services – Security department. We are looking for a people with experienced Senior Security Analyst to join our technology team. The ideal candidate will be responsible for monitoring, triaging, and investigating security events across client environments. This role supports timely incident identification, clear client communication, and effective escalation of confirmed or high-risk threats. The Threat Analyst applies technical analysis, threat intelligence, and documented response procedures to help protect client information assets.

How You Will Make An Impact

• Monitor and triage security alerts from SIEM, EDR/XDR, firewall, IDS/IPS, endpoint, identity, email, cloud, and other client telemetry sources.
• Perform initial investigations to validate alerts, determine scope, assess severity, and identify likely root cause.
• Analyze intrusion detection alerts, firewall events, endpoint activity, system logs, network traffic, and authentication events to identify suspicious or malicious activity.
• Determine whether attacks were successful, document supporting evidence, and notify clients according to established escalation and communication procedures.
• Identify indicators of compromise, enrich events with threat intelligence, and map relevant activity to frameworks such as MITRE ATT&CK when appropriate.
• Support incident response efforts by providing technical findings, recommended containment actions, and timely updates to clients and internal teams.
• Document investigation steps, timelines, findings, client communications, and recommendations in case management systems.
• Contribute to detection tuning, false-positive reduction, knowledge base articles, runbooks, and process improvements.
• Conduct ongoing research on emerging threats, vulnerabilities, attacker tactics,and security operations best practices.

What You Will Bring To The Table

• Strong interpersonal, organizational, communication, and technical writing skills.
• Ability to communicate technical findings, threat details, and recommended actions clearly to clients and internal stakeholders.
• Ability to work independently, follow established procedures, prioritize alerts, and accelerate appropriately.
• Working knowledge of TCP/IP, common network services, and major application layer protocols such as HTTP, SMTP, DNS, and SMB.
• Conceptual understanding of network and systems architecture, including firewalls, DMZs, intrusion detection systems, web application architecture, endpoint security, and Active Directory.
• Familiarity with common malware categories, attacker techniques, vulnerabilities, and attack vectors such as phishing, brute force attacks, port scanning, SQL injection, credential abuse, and drive-by/redirection attacks.
• Ability to review and analyze logs, alerts, packet captures, or endpoint telemetry to support security investigations.
• 1 to 3 years of experience in security operations, IT operations, help desk, desktop support, networking, systems administration, or a related technical role preferred.
• Experience with SIEM, EDR/XDR, ticketing, case management, email security, cloud security, or network security tools preferred.
• Working experience with Elastic SIEM, Elasticsearch Query Language (ES|QL), Microsoft Sentinel and Microsoft Kusto Query language (KQL).
• Security-related certifications such as CompTIA Security+, CompTIA Network+, Microsoft SC-900, or equivalent experience preferred.
• Basic scripting or automation experience using Python, PowerShell, Bash, or similar languages.
• Excellent communication skills and ability to work collaboratively in a team environment.
• Advanced English.

Location

• Buenos Aires, Argentina (Any part of the country it is great for us)

Shift

• Sunday to Thursday or Tuesday to Saturday day shift.

What We Offer

• Swiss Medical SMG 30 (primary family group)
• AWS certifications.
• Corporate benefit program with Pedidos Ya!
• Discounts at Unilever, Samsung, BGH, Peña Flor, among others
• Discounts in educational institutions
• Internet and connectivity
• Compensation for childcare expenses (from 0 to 3 years old)
• Competitive salary and benefits
• English in company
• Work from Anywhere: You can work from all over the world
• Gifts for special dates (marriage, graduation, birthdays, etc.)
• Christmas Box
• Day off for birthdays
• 10 calendar days of paternity leave
• An awesome learning environment for you to develop

What You Can Expect From Us

We offer a competitive compensation package, comprehensive group benefits to meet the needs of you and your family, flexibility, and time off when you need it, and a casual work environment. The role can be remote/home office, with some travel required.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. As part of this commitment, we will ensure that persons with disabilities are provided reasonable accommodations. If you need reasonable accommodations, please let us know by contacting NetrixHR@Netrixglobal.