Chief Network Security Engineer (San Justo)

We are seeking a Chief Network Security Engineer to support a staff augmentation engagement with a leading Oil & Gas client, strengthening hybrid cloud and on‐prem network security. Responsibilities Lead network security architecture for hybrid environments across cloud and on‐prem connectivity. Design secure AWS networking and security controls for VPCs, routing, Security Groups, WAF, and connectivity. Implement Azure networking security using VNets, NSGs, Azure Firewall, and Application Gateway. Configure and maintain firewalls, prioritizing Palo Alto and supporting Cisco ASA/Firepower where needed. Integrate web filtering and SASE solutions such as Prisma Access to enforce secure access. Deploy and tune load balancing solutions using F5, A10, or cloud equivalents. Troubleshoot complex network issues across TCP/IP, DNS, and NAT to restore services quickly. Collaborate with client stakeholders to align security controls with operational needs in Oil & Gas environments. Qualifications 7+ years of hands‐on network security experience. Strong leadership capability to guide network security decisions and standards. Proven project experience delivering hybrid cloud and on‐prem connectivity initiatives. Advanced AWS networking and security skills (VPCs, routing, Security Groups, WAF, connectivity). Hands‐on firewall skills (Palo Alto preferred; Cisco ASA/Firepower acceptable). Load balancer knowledge (F5, A10, or cloud equivalents). SASE/web filtering experience (Prisma Access or similar). Strong TCP/IP networking fundamentals including DNS and NAT. Strong troubleshooting skills for complex network and connectivity issues. Benefits International projects with top brands. Work with global teams of highly skilled, diverse peers. Employee financial programs. Paid time off and sick leave. Upskilling, reskilling and certification courses. Unlimited access to the LinkedIn Learning library and 22,000+ courses. General career opportunities. Volunteer and community involvement opportunities. EPAM Employee Groups. Award‐winning culture recognized by Glassdoor, Newsweek and LinkedIn. EPAM Systems #J-*****-Ljbffr Postúlate en Kit Empleo: kitempleo.com.ar/empleo/qifqs