Network Architect

Tata Consultancy Services Limited
Atlanta, United States of America
4 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior
Compensation
$ 160K

Job location

Atlanta, United States of America

Tech stack

Amazon Web Services (AWS)
Azure
Border Gateway Protocol
Cloud Computing
Complex Networks
Computer Networks
Dynamic Host Configuration Protocol
DNS
Cryptographic Protocols
Networking Hardware
Internet Protocol Security (IP SEC)
Intrusion Detection and Prevention
Intrusion Detection Systems
Virtual Private Networks (VPN)
Multi-protocol Systems
Network Security
Network Architecture
Network Planning and Design
Network Monitoring
Routing
Network Protocols
Open Shortest Path First
Role-Based Access Control
Release Management
Azure
TCP/IP
Wireshark
Network Routers
Transport Layer Security
Malware
Firewalls (Computer Science)
Information Technology
Low Latency
Network Support
Performance Monitor
Firewall Services Module
Cisco networks
Vulnerability Analysis

Job description

  • Design and implement high-performance, secure, and scalable network solutions that meet business requirements.
  • Plan and execute network upgrades, expansions, and optimizations to support growth and technological advancements.
  • Develop and maintain network architecture diagrams, documentation, and standard operating procedures.
  • Monitor, manage, and maintain the network infrastructure, ensuring optimal performance and minimal downtime.
  • Implement and manage network monitoring tools and systems to proactively identify and resolve issues.
  • Perform regular network maintenance tasks, including updates, patches, and configuration changes.
  • Diagnose and resolve complex network issues related to connectivity, performance, and security.
  • Provide third-tier support for network-related incidents, collaborating with other IT teams as needed.
  • Analyze network traffic and performance metrics to identify bottlenecks, inefficiencies, and security risks.
  • Implement and maintain robust network security measures, including firewalls, VPNs, and intrusion detection/prevention systems.
  • Conduct regular security audits, vulnerability assessments, and risk management activities.
  • Ensure compliance with industry standards and organizational security policies.
  • Lead or participate in network-related projects, ensuring timely delivery and alignment with business goals.
  • Collaborate with cross-functional teams to design and implement network solutions that support new applications, services, and technologies.
  • Validate ZCC agent status (running, enrolled, service health)
  • Validate user authentication (SSO login attempts, MFA prompts)
  • Business-critical app blocked (URL category, list) - Troubleshooting from VPN perspective
  • SSL Inspection exceptions (bypass specific domains)
  • URL category updates (reclassification)
  • Allow/block list changes (domain or URL) in Zscaler
  • ZIA Firewall / Cloud App Controls (if licensed: L7 firewall rules, app control)
  • Threat protection controls (ZIA IPS, malware, sandboxing)
  • Performance / slowness (latency, DNS, routing, tunnel issues)
  • Routing / DNS problems
  • WAN / ISP issues (circuit, upstream problems)
  • VPN/ZCC coexistence (split tunneling, routing overlap)
  • Unexpected Zscaler behavior (redirect loops, intermittent connection)
  • ZCC install/uninstall
  • ZCC corruption / agent malfunction troubleshooting
  • EDR/AV conflicts with ZCC troubleshooting
  • Zscaler tunnel management (GRE/IPSec health, failover)
  • Zscaler PAC file management (ruleset updates, hosting, troubleshooting)
  • ZIA admin policies (device posture, app segmentation, identity rules)
  • Identity / SSO integration (Azure AD, SCIM, user attributes)
  • Role-based admin access (RBAC roles, Zscaler admin privileges)
  • Zscaler TAC engagement (support tickets, troubleshooting escalations)
  • ZIA release management (client connector upgrades, feature adoption)
  • Zscaler reporting/dashboarding (usage, SSL, threat, performance)
  • ZIA capacity & performance monitoring (tunnel load, DC selection)
  • Change manage ment (CAB review for Zscaler changes)
  • Zscaler roadmap & strategy (align features, plan enhancements)
  • Escalation to SOC (filtering-related)
  • Escalation to IT Ops (infrastructure/platform-related)
  • Policy/exception/risk approvals (SSL, access exceptions)
  • Stay up-to-date with the latest networking technologies, trends, and best practices.
  • Identify opportunities to improve network performance, security, and reliability.

Requirements

  • Very strong knowledge on routing, switching, network security protocols especially Zscaler VPN solution, * Education: Bachelor's degree in Computer Science, Information Technology, or a related field. Advanced certifications (e.g., CCNP, CCIE, or equivalent) are highly desirable., * Lead and build strong relationships and teams.
  • 10+ years of experience in network engineering, with a focus on complex and large-scale networks.
  • Proven experience with network design, implementation, and troubleshooting in enterprise environments.
  • In-depth knowledge of networking protocols (e.g., BGP, OSPF, MPLS, TCP/IP, DNS, DHCP).
  • Extensive experience with network hardware (e.g., routers, switches, firewalls) from Cisco, Aruba, Palo Alto and others.
  • Strong understanding of network security principles and technologies (e.g., firewalls, VPNs, IDS/IPS, Zscaler).
  • Proficiency in network monitoring and management tools (e.g., Logic Monitor, Wireshark).
  • Experience with cloud networking (e.g., AWS, Azure)
  • Excellent problem-solving and analytical skills, with the ability to troubleshoot complex issues.
  • Strong communication skills, with the ability to explain technical concepts to non-technical stakeholders.
  • Ability to work independently and as part of a team, managing multiple priorities and projects.
  • Certifications: CCNP, CCIE, or other relevant network certifications are preferred.

Benefits & conditions

Salary Range-$130,000-$160,000 a year TCS Employee Benefits Summary: Discretionary Annual Incentive. Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans. Family Support: Maternal & Parental Leaves. Insurance Options: Auto & Home Insurance, Identity Theft Protection. Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement. Time Off: Vacation, Time Off, Sick Leave & Holidays. Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

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