DMZ Network Security Engineer (L3 Support)

Location: Bucharest, Romania

The people we all rely on to make the world go round – they rely on Thales.  Thales rely on its employees to invent the future: right here, right now.

Present in Romania for over 40 years, Thales is expanding its presence in the country by growing its Digital capabilities and by developing a Group Engineering Competence Centre (ECC). Operating from Bucharest, Thales delivers solutions in a number of core businesses, from ground transportation, space and defence, to security and aeronautics.
Several professional opportunities have arisen. If you are looking for the solidity of a Global Group that is at the forefront of innovation, but with the agility of a human structure that tailors to the personal development of its employees and allows opportunities for evolution in an international environment, then this is the place for you!

Job summary

We are seeking a highly skilled and experienced L3 DMZ Network Security Engineer to join our team. The candidate will be responsible for the administration, support, and continuous improvement of DMZ infrastructure and security operations. This includes managing incidents, implementing changes, coaching L2 admins, and contributing to technical processes in a highly secure and dynamic environment.

Responsibilities:

• Provide Level 3 support for DMZ infrastructure (post-escalation).
• Admin coaching and mentoring for junior admins.
• Liaise with engineering teams for change operations and technical problem resolution.
• Contribute to CAB (Change Advisory Board) and knowledge base updates.
• Conduct standard operating procedure (SOP) and testbed management.
• Perform security patch testing and support audit readiness.
• Maintain and enhance deployment procedures and documentation.
• Ensure tickets are fulfilled promptly with quality assurance.

ITIL Processes:

• Event Management - beginner
• Incident Management – intermediate
• Service Request Management - beginner
• Change Management - intermediate
• Service Level Management - beginner
• Problem Management - beginner
• Service Asset & Configuration Management - beginner

Required Skills & Experience:

• IaaS, PAS, SSI – beginner
• DMZ – senior
• Administration CISCO – senior
• Dynamic Layer 3 Routing (BGP, OSPF, MPLS) – intermediate
• Layer 2 and Layer 3 VLANs – senior
• ACL/Prefix-List Management and Configuration – intermediate
• Application Filtering (IDS/IPS) – intermediate
• Scripting - beginner
• Firewall Palo Alto – senior
• Panorama (Palo Alto Firewall Administration and Supervision) – intermediate
• Reading and debugging WireShark frames – senior
• Log monitoring and management – intermediate
• IPsec (Internet Protocol Security) – intermediate
• Fluent English

Behavioral skills:

• Values-driven (Focus, Openness, Respect, Courage, Commitment)
• Self-driven and proactive problem solver
• Team player with a positive attitude
• Strong communication (spoken and written English)
• Able to work independently and in cross-functional teams
• Willing to travel between France and Belgium
• Nice to have: Leadership and presentation skills

Key Deliverables:

• Complete and accurate documentation and training materials
• Fulfilled support and change tickets
• Updated SOPs and knowledge base articles
• Deployment procedures

Certification:

• ITIL V4 foundation
• CCNA (CISCO First Level Certificate)

Mobility:

• Flexibility to travel between France and Belgium
• No work from home available

Your careeer at Thales:

Future opportunities will allow you to discover other domains or sites. You will be able to evolve and grow your competences in different areas:

• Room and attention to personal development.
• Build your talents in another domain of Thales Group, discovering new products, new customers, new country or go to a more complex Solutiom
• Choose between a technical expertise or a leadership path.
• Build an international career within a leading Engineering Group.
• Work for different Thales domains & entities.

Your immediate benefits:

• 24 holiday days a year
• Benefit Online
• A good work-life balance which includes flexible working hours
• A comprehensive compensation and benefit package including medical coverage & life insurance
• Hybrid Workplace
• GoFluent & Udemy Subscription
• Engineering, Technology & Management Academies

At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working. Great journeys start here, apply now!