Security Engineer

Accesa is a leading technology company headquartered in Cluj-Napoca, with offices in Oradea and 20 years of experience in turning business challenges into opportunities and growth.

A value-driven organisation, it has established itself as a partner of choice for major brands in Retail, Manufacturing, Finance, and Banking. It covers the complete digital evolution journey of its customers, from ideation and requirements setup to software development and managed services solutions.

With more than 1,200 IT professionals, Accesa also has a fast-growing footprint, establishing itself as an employer of choice for IT professionals who are passionate about problem-solving through technology. Coming together in strong tech teams with a customer-centric approach, they enable businesses to grow, delivering value for our clients, partners, industry, and community.

We are seeking an experienced Security Engineer to join a security project, responsible for the administration, monitoring, and continuous improvement of the organization's security infrastructure.

Responsibilities

Administer and fine-tune Microsoft Sentinel (SIEM), including rule creation, use-case development, and incident triage; Manage and optimize Elastic Stack (Elasticsearch/ELK) for log ingestion, indexing, and security analytics; Configure, maintain, and troubleshoot enterprise firewalls (rule management, policy hardening, traffic analysis); Operate and tune EDR (Endpoint Detection & Response) solutions for threat detection and incident response; Collaborate with SOC/IT teams to ensure compliance with banking regulatory and security standards

Requirements

Proven hands-on experience with Microsoft Sentinel (or equivalent SIEM); Strong working knowledge of Elastic/ELK Stack administration; Solid experience configuring and managing firewalls (e.g., Palo Alto, Fortinet, Check Point); Practical experience with EDR platforms (e.g., CrowdStrike, Defender for Endpoint, SentinelOne); Solid Linux administration knowledge; Understanding of cloud environments and cloud security concepts (e.g., Azure, AWS, or GCP); Regular use of AI tools to improve productivity, automate or reduce repetitive work, support decision-making, and deliver higher-quality outcomes.; Ability to use AI tools responsibly by structuring effective prompts, critically validating outputs, understanding limitations, and taking ownership of the final result.

Nice to have

Understanding of banking/financial sector security and compliance requirements; Relevant certifications (e.g., Security+, CySA+, SC-200, or vendor-specific)