About this Senior Network Engineer role at Thinkahead
Thinkahead · Onsite · Gurugram, Haryana
AHEAD builds platforms for digital business. By weaving together advances in cloud infrastructure, automation and analytics, and software delivery, we help enterprises deliver on the promise of digital transformation.
At AHEAD, we prioritize creating a culture of belonging, where all perspectives and voices are represented, valued, respected, and heard. We create spaces to empower everyone to speak up, make change, and drive the culture at AHEAD.
We are an equal opportunity employer, and do not discriminate based on an individual's race, national origin, color, gender, gender identity, gender expression, sexual orientation, religion, age, disability, marital status, or any other protected characteristic under applicable law, whether actual or perceived.
We embrace all candidates that will contribute to the diversification and enrichment of ideas and perspectives at AHEAD.
We are seeking a Sr. Network Engineer to provide L3 network support across enterprise infrastructure, security, routing, switching, wireless, and connectivity environments. The role will be responsible for resolving complex incidents, supporting network changes, and maintaining reliable and secure network operations.
Key Responsibilities
- Provide L3 troubleshooting and resolution for complex network and firewall incidents.
- Manage and support FortiGate Firewall and Cisco Firepower Threat Defense (FTD) environments using Firewall Management Center (FMC).
- Design, configure, and troubleshoot Cisco routing and switching environments, including VLANs, OSPF, BGP, and STP.
- Support enterprise wireless networks and resolve performance, connectivity, and authentication issues.
- Troubleshoot DHCP, DNS, NAT, VPN, and end-to-end network connectivity issues.
- Participate in network monitoring, incident management, problem management, and change management activities.
- Perform root-cause analysis, document resolutions, and recommend preventive actions.
- Collaborate with cross-functional teams, vendors, and stakeholders to restore services and deliver network changes effectively.
- Maintain accurate network documentation, operational procedures, and knowledge articles.
Required Skills & Qualifications
- 10+ years of hands-on experience in network engineering and enterprise network operations.
- Strong experience with FortiGate Firewall and Cisco Firepower Threat Defense (FTD).
- Practical experience with Cisco Firewall Management Center (FMC).
- Strong knowledge of Cisco routing and switching.
- Expertise in VLANs, OSPF, BGP, and STP.
- Experience supporting and troubleshooting enterprise wireless networks.
- Strong troubleshooting skills across DHCP, DNS, NAT, VPN, and network connectivity.
- Experience with network monitoring, incident management, and change management processes.
- Strong analytical, communication, documentation, and collaboration skills.
Desired Skills
- Cisco ISE, including RADIUS, TACACS+, and 802.1X.
- Azure Networking, including VNet, NSG, VPN Gateway, and ExpressRoute.
- SD-WAN experience with Aruba EdgeConnect/Silver Peak.
- Experience with LogicMonitor, Splunk, and ServiceNow.
Why AHEAD:
Through our daily work and internal groups like Moving Women AHEAD and RISE AHEAD, we value and benefit from diversity of people, ideas, experience, and everything in between.
We fuel growth by stacking our office with top-notch technologies in a multi-million-dollar lab, by encouraging cross department training and development, sponsoring certifications and credentials for continued learning.
India Employment Benefits include:
Comprehensive health insurance coverage for employees, with options to extend coverage to dependents
Paid time off and company holidays, along with additional leave benefits as per policy
Flexible work arrangements, supporting work-life balance
Learning and development opportunities to support continuous growth and upskilling
Employee wellness initiatives and programs focused on physical and mental well-being
Retirement and statutory benefits in line with India regulations
Inclusive and people-first culture, with a strong focus on collaboration and ownership
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