SIEM Platform Engineer (f/m/d) @ A1 Competence Delivery Center
À1 Áúëãàðèÿ ÅÀÄ Top employer
more than 300 employees
SIEM Platform Engineer (f/m/d) @ A1 Competence Delivery Center
Ñîôèÿ, áóë. ×åðíè âðúõ 51 Á
full-time

SIEM Platform Engineer (f/m/d) @ A1 Competence Delivery Center

Ñîôèÿ, áóë. ×åðíè âðúõ 51 Á full-time

Job Description

Strength. Care. Growth

You will know we are the right place for you, if you are driven by:

  • Opportunities to learn and build your career.
  • Meaningful work in a stable and fast-paced company.
  • Diversity of people, projects, and platforms.
  • A supportive, fun, and inspiring place to work.

This job can be performed by all countries within our A1 footprint.
Role Overview:

As a SIEM Platform Engineer, you will be responsible for engineering, maintaining, and continuously improving our enterprise SIEM platform.
Your work will directly support our security operations by ensuring a reliable, scalable, and high?quality SIEM foundation.

This is a hands?on engineering position - not a SOC analyst role.

Role insights:

  • Maintain and improve Splunk Enterprise components (Search Heads, Indexers, Cluster Masters, Deployment Servers).
  • Manage and optimize heavy forwarders and universal forwarders for reliable log ingestion.
  • Onboard new data sources across cloud, on-prem, and hybrid environments.
  • Develop and maintain TAs, props/transforms, field extractions, and parsing logic.
  • Ensure CIM-compliant data models and well-structured, high-quality logs.
  • Support troubleshooting across ingestion, parsing, indexing, search performance, and configuration issues.
  • Ensure platform stability, performance, and security.
  • Handle platform upgrades, scaling activities, and architecture enhancements.
  • Work with internal teams to document integrations and maintain onboarding quality.
  • Work closely with SOC analysts, threat hunters, and detection engineers to ensure data readiness.
  • Contribute to internal engineering standards, guidelines, and best practices.
  • Automate deployments, maintenance tasks, and data onboarding workflows (Python, Bash, Ansible, or similar).
  • Build scripts and tools that improve the platform’s efficiency and reduce manual work.
  • Support SOAR automation pipelines where needed.

What makes you unique:

  • Bachelor’s or Master’s degree in Information Security, Computer Science, or related field.
  • 3–5+ years of hands?on experience administering and engineering Splunk Enterprise/SIEM platforms.
  • Strong hands-on experience with Splunk Enterprise as a platform engineer/admin.
  • Expertise in: Deployment servers, Heavy forwarders, Parsing and filtering, TA/APP development, Data onboarding at scale.
  • Solid understanding of: Linux, Networking fundamentals, Logging architectures.
  • Scripting skills (Python preferred).
  • Experience in cybersecurity/SIEM environments.
  • Familiarity with cloud environments (especially Azure/M365) is a plus.
  • Splunk certifications (Admin, Architect, Core, ES Analyst) are a strong advantage.
  • German language skills will be considered as an advantage.


Job code: AIT070P210

Job classification:P2 - 10, KV4, PT 3/1