Senior Windows Engineer

NTT DATA – a part of NTT Group - is a Top 10 global IT services provider, headquartered in Tokyo, with over 150,000 employees.

We deliver consulting solutions by combining specialized sectorial knowledge, our transformation management skills and our large technology expertise (data, RPA, AI, low code, cloud, IoT, virtual reality), to keep our clients, as well as society, a step ahead in this digitally dynamic world.

At NTT DATA everything we do is guided by our core values. We respect every voice, think bold, deliver the outcome and win together. Our leadership approach enables our people to feel inspired to contribute, empowered to take initiative, and genuinely cared for in their growth and wellbeing.

NTT Data Greece team is looking for a Senior Windows Engineer (TSM Expert) in Athens to work with our clients in the European public sector.

As a Senior Windows Engineer, you will be responsible for the design, implementation, and maintenance of Windows-based systems and infrastructure. This role ensures high availability, performance, and security of enterprise systems, while also mentoring junior engineers and contributing to strategic IT initiatives.

Your role:

• Proactively monitor and ensure the operational health of client IT infrastructure and systems by identifying, investigating, and resolving technical incidents and problems.
• Lead and support incident resolution processes to ensure swift restoration of services.
• Implement and maintain Microsoft Windows Server technologies (Windows 2016 and above), System Center products such as SCOM, SCCM, and Orchestrator.
• Design and deploy solutions incorporating WAN/LAN technologies, storage systems, and database systems, particularly Microsoft SQL.
• Develop and utilize scripts (e.g., Powershell) for automation and efficiency.
• Manage Active Directory services, including DHCP, DNS, and GPO, while maintaining firewall rules and concepts.
• Collaborate in a dynamic, multinational environment, driving client-focused service and solutions.
• Take ownership of responsibilities, lead technical teams, and work under pressure to meet deadlines.
• Contribute to structured problem-solving and adhere to ITIL processes for operational efficiency.

Your profile:

• Bachelor's degree in Computer Science, Information Technology, or equivalent level through experience and professional training.
• Minimum 10 years of experience in a similar role.
• Experience with Windows infrastructure in mid-to-large size environments.
• Knowledge of Microsoft technologies, including Windows Server and System Center products.
• Familiarity with WAN/LAN technologies, storage systems, Active Directory, and firewall principles.
• Advanced scripting proficiency, particularly Powershell, to automate and enhance processes.
• Proven ability to design complex architectures and solve problems methodically.
• Service-oriented mindset and ability to communicate effectively in multicultural settings.
• Initiative, accuracy, and attention to detail in all tasks.
• Experience with McAfee ePO and related tools (VirusScan, Policy Auditor).
• Familiarity with certificate-enabled technologies (SSL/TLS, S/MIME, Authentication, etc.).
• Knowledge of VMware products, PKI implementation, and certificate lifecycle management.
• Understanding of modern IT practices, including DevOps and cloud operations.
• Excellent command of both spoken and written English , any other European languages are considered a plus.

• You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).

• This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs

Benefits:

• Competitive compensation package
• Laptop & mobile subscription
• Monthly meal vouchers
• Health and life insurance for you and your family
• Allowance for home office set-up equipment
• A mentor to support you with your employee experience
• Continuous learning opportunities & sponsored certifications (Udemy, languages etc.)
• Clear career paths & a developmental 360° feedback framework
• An international dynamic within a fast-paced working environment
• The opportunity to work in a diverse environment with talented colleagues

Why NTT DATA ?

We value a collaborative and supportive environment, celebrating curiosity and engagement

Career development. Training path and access to learning opportunities such, yearly performance reviews and a mentorship program.

We believe in work-life balance and flexibility. Wear casual clothing, decide your working hours, and enjoy our hybrid working model.

Talent Friends. Refer a friend and receive a bonus when they join.

Health & well-being. Focus on your mental health with access to a platform with certified psychologists & mental health workshops. Take a break with one of our online fitness and well-being sessions.

Diversity & inclusion. We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics. #WeAreAllUnique #YouMakeUsUnique

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Upon receiving an interview, you may request accommodation for any accessibility needs.