About Persistent

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.

Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We have delivered 21 sequential quarters of growth with $389.7M in Q1 FY26 revenue, up 3.9% Q-o-Q and 18.8% Y-o-Y growth. Our 25,000+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been named the fastest-growing Indian IT services brand in the “Brand Finance India 100” 2025 report. We were also cited as a Leader in the ISG Provider Lens™ 2025 for Digital Engineering Services 2025 and the Everest Group Talent Readiness for Next-generation Application Services PEAK Matrix® Assessment 2025

• Role: Senior Network Infrastructure Specialist
• Location: Krakow, Poland
• Experience: 8+ Years
• Job Type: Full-time
• Work mode: Hybrid

The Network Infrastructure Specialist is responsible for designing, implementing, maintaining, and optimizing the organization's network infrastructure. This includes ensuring high availability, security, and performance of systems to support business operations. The role requires expertise in server management, network architecture, troubleshooting, and collaboration with cross-functional teams to meet organizational goals.

Key Responsibilities

• Design, implement, and maintain LAN, WAN, VPN, and Wi-Fi networks.
• Configure and manage network devices such as routers, switches, firewalls, and access points.
• Monitor network performance and troubleshoot connectivity issues.
• Primary responsibility to manage Network Data but it will be preferred if the candidate can also Ensure network security by implementing firewalls, intrusion detection/prevention systems, and encryption protocols.
• Collaborate with ISPs and vendors to ensure reliable internet connectivity.

Security and Compliance:

• Implement and enforce Network procedures and best practices.
• Conduct regular vulnerability assessments and penetration testing.
• Ensure compliance with industry standards and regulations (e.g., GDPR, ISO 27001).

Required Skills & Qualifications

• Proficiency in networking protocols (TCP/IP, DNS, DHCP, VLANs).
• Familiarity with cloud platforms (AWS, Azure, Google Cloud)

Problem-Solving:

• Ability to diagnose and resolve complex network issues.
• Analytical mindset with a focus on root cause analysis.

Communication:

• Excellent verbal and written communication skills.
• Ability to explain technical concepts to non-technical stakeholders.

Certifications (Preferred):

• CompTIA Network+, CompTIA Server+
• Cisco CCNA/CCNP

Project Management:

• Plan and execute server and network infrastructure upgrades, migrations, and expansions.
• Collaborate with stakeholders to assess requirements and deliver solutions.
• Manage budgets and timelines for infrastructure projects.

Experience:

• 6-8 years of experience in network administration.
• Hands-on experience with enterprise-grade infrastructure.

Work Environment:

• On-site work model depending on organizational requirements.
• May require after-hours support during emergencies or scheduled maintenance.
• Collaboration with IT teams, vendors, and external service providers.

Key Performance Indicators (KPIs):

• Network latency and reliability.
• Incident response and resolution times.
• Compliance with security standards.

Benefits:

• Competitive salary and benefits package.
• Culture focused on talent development with quarterly promotion cycles and company-sponsored higher education and certifications.
• Opportunity to work with cutting-edge technologies.
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards.
• Annual health check-ups.
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents.

Our company fosters a values-driven and people-centric work environment that enables our employees to:

• Grow both professionally and personally.
• Change the world in powerful, positive ways, using the latest technologies.
• Work on collaborative innovation, with diversity and work-life wellbeing at the core.
• Have access to global opportunities to work and learn with the industry’s best talents.

Let’s unleash your full potential at Persistent - persistent.com/careers