Senior SOC Platform Engineer (SIEM)

About the Role

We are operating and continuously improving an internal Security Operations Center (SOC) platform built as an end-to-end security monitoring system. The platform covers log collection, data normalization, threat detection, and alert handling. The core platform is already built and running stably in production.

This role is not about building a SOC platform from scratch. Instead, you will focus on expanding data coverage, especially new log sources generated as the company moves its infrastructure to private cloud, standardizing logs using UDM, improving threat detection capabilities, and maintaining and enhancing existing SOC components.

What You Will Do?

·       Research, design, and integrate new log sources
Integrate network, cloud/private cloud, audit, and other log sources into the existing data pipeline.

·       Develop and improve detection rules
Create and extend anomaly and threat detection rules using Sigma, Drools (DRL), and Wazuh rules/decoders, with a focus on improving coverage of the MITRE ATT&CK framework.

·       Document the SOC platform
Document system architecture, detection logic, log schemas, and operational processes to ensure the platform can be maintained and operated effectively in the long term.

·       Build and improve correlation detection
Work with other teams to develop base and correlation detection rules, and evaluate their effectiveness using real-world security cases.

·       Maintain and improve existing SOC components
Proactively maintain, troubleshoot, and improve existing components, including Falco, Wazuh, Flink pipelines, Drools, TheHive, and AI-based alert triage. Independently investigate and resolve production issues related to the SOC infrastructure.

·       Evaluate and propose new solutions
Research, evaluate, and recommend new or alternative technologies within the SOC ecosystem when needed for future expansion or improvement. This may include evaluating alternatives to Falco.

·       Support Incident Response
Work with relevant teams to investigate and respond to security incidents when attacks or suspicious activities are detected.

Requirements:

Must-Have

·       4–5+ years of experience in Security Operations, Security Analysis, or a related security role.

·       Hands-on experience operating a SOC environment, including: MITRE ATT&CK, YARA rules, Drools rules, UDM, Apache Flink, Wazuh, ELK, SIEM

·       Practical experience with log normalization using UDM (Google SecOps/Chronicle Unified Data Model) or a similar standardized log/data model.

·       Good programming and coding skills, with the ability to read, write, integrate, and customize components in a SOC environment, especially UDM, Drools, Flink, and data pipelines.

·       Strong debugging and troubleshooting skills, with the ability to independently investigate and resolve production issues involving components such as Falco, Wazuh, Flink, Drools, and TheHive.

Nice-to-Have

·       Experience with Public/Private Cloud, Kubernetes, CI/CD, Linux, Kafka, Vector, ELK, ClickHouse, and S3.

·       Experience with other open-source tools and technologies in the SOC ecosystem, such as Tetragon, AppArmor, Kyverno, Threat Intelligence, and Threat Hunting.

·       Experience training or building custom ML models to improve alert classification, beyond prompt-based approaches.

·       Ability to provide technical recommendations and propose improvements to SOC architecture and operational processes.

·       Experience designing and fine-tuning LLM prompts for security alert classification and automation, such as identifying True Positive / False Positive alerts.

Why You'll Love Working Here

Inside our lean engineering team:

·       We work on large and complex systems, with a focus on ownership and continuous learning.

·       We work within existing constraints and improve systems incrementally.

·       We value strong fundamentals and the ability to reason through unfamiliar or complex systems.

·       Collaboration is direct, and discussions focus on solving problems and delivering results.

Our offers include: 

·       MacBook provided

·       Full salary insurance

·       Health care insurance

·       19 leave days

·       Annual health check-up