Technical Solution Expert

Orange; Mumbai; Hybrid; INR 2,000,000 - 4,200,000; Full time

Benefits offered by this job

Global opportunities

Hybrid work environment

Professional development

Career growth

Well-being programs

Job summary

Orange Business is seeking an experienced Network & Security Engineer to provide advanced support for enterprise data centre, network and security infrastructure in a 24×7 environment.

You will handle L3 issues, perform RCA, support upgrades, implement security measures and mentor L1/L2 engineers across Cisco Nexus technology and related tooling.

Qualifications

• 8+ years of experience in Network & Security / Infrastructure operations.
• Strong L2/L3 enterprise networking experience.
• Significant Data Centre networking experience and incident handling.
• Experience with OEM/TAC coordination and technical mentoring.
• Certifications: CCNA, CCNP Enterprise or related security/firewall certs.

Responsibilities

• Provide L3 technical support for enterprise Network and Security infrastructure.
• Troubleshoot and resolve complex Nexus L2/L3 incidents.
• Support data centre fabric implementation and upgrades.
• Lead configuration reviews and migration activities.
• Coordinate security incidents with Security teams and OEM teams.

Skills

L3 troubleshooting

L2/L3 enterprise networking

Data Centre networking

Incident management

Mentoring L1/L2 engineers

Network security

Education

Bachelor's degree in Computer Science or IT or Electronics or Telecommunications

Tools

Cisco Nexus

NDFC

Radware Alteon

Trend Micro Antivirus

OSPF/BGP routing

Job description

Orange Business is here!

About us

Join us at Orange Business!We are a network and digital integrator that understands the entire value chain of the digital world, freeing our customers to focus on the strategic initiatives that shape their business.Every day, you will collaborate with a team dedicated to providing consistent, sustainable global solutions, no matter where our customers operate. With over 30,000 employees across Asia, the Americas, Africa, and Europe, we offer a dynamic environment to develop and perfect your skills in a field filled with exciting challenges and opportunities.

About the role

We are looking for an experienced Network & Security Engineer to provide advanced technical support and administration for enterprise **Data Centre, Network and Security infrastructure**.

The role will be responsible for L3 troubleshooting, complex incident resolution, root cause analysis, network/security implementation, infrastructure upgrades, change management, technical documentation, OEM coordination and mentoring of L1/L2 engineers.

The candidate should have strong hands-on experience in **Cisco Nexus Data Centre switching, routing, load balancing, firewalls and enterprise network security** and should be capable of independently handling critical production issues in a 24×7 Data Centre environment.

• Provide **L3 technical support** for enterprise Network and Security infrastructure.
• Troubleshoot and resolve complex network and security incidents.
• Act as the technical escalation point for L1/L2 teams.
• Support critical production incidents and participate in major incident bridges.
• Perform detailed troubleshooting using logs, packet captures, device statistics and configuration analysis.
• Ensure timely restoration of services while maintaining proper change and security procedures.

2. Cisco Data Centre Networking

Strong hands-on experience with **Cisco Nexus switches**, including:

• Cisco Nexus 9000 series
• Layer 2 and Layer 3 configuration
• VLAN, trunking and EtherChannel
• STP/RSTP
• vPC and vPC peer-link
• HSRP
• Inter-VLAN routing
• OSPF and BGP
• VRF
• VXLAN/EVPN concepts
• NDFC administration and troubleshooting
• Interface, port-channel and transceiver troubleshooting
• Nexus upgrade and migration activities

Responsibilities include:

• Troubleshooting complex Nexus L2/L3 issues.
• Troubleshooting vPC, peer-link and keepalive-related issues.
• Troubleshooting routing and forwarding problems.
• Supporting Data Centre fabric implementation and expansion.
• Performing configuration reviews and optimization.
• Supporting Nexus/NDFC upgrades and migration activities.

3. Routing & WAN

• Advanced troubleshooting of enterprise routing environments.
• Troubleshoot routing adjacency and route propagation issues.
• Troubleshoot inter-Data Centre connectivity.
• Support DR connectivity and network failover activities.

4. Load Balancer Administration

Hands-on experience with enterprise load-balancing technologies such as:

Radware Alteon**

Responsibilities include:

• VIP creation and troubleshooting.
• Server pool and member configuration.
• Health monitor configuration.
• Load-balancing method and persistence troubleshooting.
• NAT and SNAT configuration.
• SSL offloading concepts.
• GSLB configuration and troubleshooting.
• Troubleshooting application connectivity through load balancers.
• Supporting planned migrations and DR/failover activities.

5. Antivirus/Security

Provide L3 support for Trend micro antivirus, SPS, TMDSM, etc.

Responsibilities include:

• Firewall rule troubleshooting and analysis.
• NAT and security-policy troubleshooting.
• Application/service connectivity troubleshooting.
• Log analysis and traffic-flow verification.
• Coordinate with Security teams for security incidents.
• Ensure network changes follow security and compliance requirements.

About you

• 8+ years of experience in Network & Security / Infrastructure operations**.
• Strong L2/L3 enterprise networking experience.
• Significant experience in Data Centre network environments.
• Experience handling critical incidents and complex technical escalations.
• Experience with network implementation, upgrades and migration projects.
• Experience working with OEM/TAC and multiple technology teams.
• Experience providing technical guidance to L1/L2 engineers.

Preferred certifications include:

• **CCNA**
• **CCNP Enterprise**
• Cisco Certified Specialist – Enterprise Core
• Relevant firewall/security certifications
• Relevant Radware certifications

---

Educational Qualification

• Bachelor's degree in **Computer Science, Information Technology, Electronics, Telecommunications or a related technical field**.

---

Key Competencies

• Advanced network troubleshooting
• Strong analytical and RCA skills
• Critical incident handling
• Problem-solving and decision-making
• Network security awareness
• Technical ownership
• Strong communication and stakeholder management
• Vendor/OEM coordination
• Technical documentation
• Team mentoring and knowledge sharing
• Ability to work under pressure in a 24×7 Data Centre environment

You bring open mindedness, ability to handle pressure, leading with courage and empathy, assertiveness and communicate effectively.

What we offer

• Global Opportunities: Work in multi-national teams with opportunity to collaborate with colleagues and customers from all over the world.
• Flexible Work Environment: Flexible working hours and possibility to combine work from office and home (hybrid ways of working).
• Professional Development: training programs and upskilling/re-skilling opportunities.
• Career Growth: Internal growth and mobility opportunities within Orange.
• Caring and Daring Culture: Health and well-being programs and benefits, diversity & inclusion initiatives, CSR and employee connect events.
• Reward Programs: Employee Referral Program, Change Maker Awards.

Only your skills matter

Regardless of your age, gender identity, race, ethnic origin, religion/belief, sexual orientation, marital status, neurotype, disability, veteran status or appearance, we encourage diversity within our teams because it is a strength for the collective and a vector of innovation. Orange Group is a disabled‑friendly company and equal opportunity employer: don't hesitate to tell us about your specific needs.