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 reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries.
About Position
We are looking for a Network Security Engineer specializing in DNS security to protect and optimize enterprise DNS infrastructure.
- Role: Network Security - DNS
- Location: Pune
- Experience: Between 5 to 8 Years
- Job Type: Full Time Employment
What You'll Do
- Design, implement, and operate secure DNS infrastructure (DNS, DHCP, IPAM/DDI).
- Deploy and manage DNS security controls – DNSSEC, DNS firewalling, filtering.
- Detect and respond to DNS-based threats (tunneling, exfiltration, DGA).
- Harden and optimize network and DNS configurations.
- Integrate DNS telemetry with SIEM/SOC for monitoring.
- Document architecture, standards, and operational runbooks.
Expertise You'll Bring
- Between 5 to 8 years of experience in DNS and network security.
- Hands-on experience with DNS, DHCP, and DDI platforms (e.g., Infoblox, BlueCat).
- Strong understanding of DNS security (DNSSEC, DNS firewall, threat detection).
- Knowledge of network security, firewalls, and TCP/IP.
- Experience detecting and mitigating DNS-based attacks.
- Familiarity with SIEM integration and automation.
- Relevant networking/security certifications are a plus.
Benefits
- Competitive salary and benefits package
- Culture focused on talent development with quarterly growth opportunities 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
Values-Driven, People-Centric & Inclusive Work Environment
Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.
- We support hybrid work and flexible hours to fit diverse lifestyles.
- Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
- If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment.
Let's unleash your full potential at Persistent – persistent.com/careers
Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.
DNS Security (DNSSEC, DDI), Network Security, Firewall / Secure DNS Platforms
