Sr Network Engineer

Fluence BESS India Private Limited; India; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Fluence BESS India Private Limited seeks a Senior Network Engineer to design, implement, and maintain secure industrial network infrastructure for utility-scale BESS and OT environments. You will collaborate with engineering, cybersecurity, deployment teams to ensure reliability, scalability, and compliance.

Responsibilities include configuring Cisco switches/routers, Palo Alto firewalls, VPNs, VLANs; implementing IEC 62443-aligned security, and contributing to network automation with Ansible or

Qualifications

• Bachelor's degree in CS/IT/EE or related field.
• 5-8+ years in network engineering or industrial networking.
• Strong knowledge of TCP/IP, VLANs, VPNs, DNS, DHCP, NTP.
• Experience with Cisco switches/routers and Palo Alto firewalls.
• Experience with network segmentation and secure remote access.
• Experience with Linux networking (Ubuntu) and network diag tools.

Responsibilities

• Design, configure, and maintain network infra for BESS/OT.
• Implement architectures with routers, switches, firewalls, VPNs.
• Configure and troubleshoot Cisco and Palo Alto gear.
• Implement network segmentation and ACLs and secure remote access.
• Support OT/ICS integration between devices and Fluence software.
• Troubleshoot routing, DNS, DHCP, NTP issues.
• Develop network diagrams and deployment procedures.
• Participate in network automation using Ansible or Python.

Skills

Network design

TCP/IP

Wireshark

Linux networking

Troubleshooting

Documentation

Education

Bachelor's degree in CS/IT/EE

Tools

Cisco switches

Cisco routers

Palo Alto firewalls

Ansible

Python

Job description

Fluence (Nasdaq: FLNC) is a global market leader delivering intelligent energy storage and optimization software for renewables and storage. Our solutions and operational services are helping to create a more resilient grid and unlock the full potential of renewable portfolios. With gigawatts of successful implementations across nearly 50 markets, we are transforming the way we power our world for a more sustainable future. For more information, please visit fluenceenergy.com .

Job Description:

Role Overview

The Senior Network Engineer is responsible for designing, implementing, maintaining, and troubleshooting secure and reliable network infrastructure for utility-scale Battery Energy Storage Systems (BESS) and Operational Technology (OT) environments. This role focuses on network architecture, industrial networking, firewall configuration, network segmentation, and connectivity across Fluence Energy Storage products. The engineer will collaborate with cross-functional engineering, cybersecurity, deployment, and product development teams to ensure network reliability, scalability, security, and compliance with industry standards.

Key Responsibilities

• Design, configure, and maintain network infrastructure supporting utility-scale BESS and OT environments.
• Develop and implement network architectures involving routers, switches, firewalls, VLANs, VPNs, and industrial communication networks.
• Configure and troubleshoot Cisco, Palo Alto, and other enterprise networking technologies.
• Implement network segmentation, firewall policies, access control lists (ACLs), and secure remote connectivity.
• Support network integration between industrial controllers, SCADA systems, RTACs, gateways, and Fluence software platforms.
• Troubleshoot complex network issues involving routing, switching, DNS, DHCP, NTP, TCP/IP, and communication protocols.
• Support industrial communication protocols, including Modbus TCP, OPC UA, MQTT, and BACnet.
• Collaborate with cybersecurity teams to implement network security controls aligned with IEC 62443 and OT cybersecurity best practices.
• Develop and maintain network architecture diagrams, configuration standards, deployment procedures, and technical documentation.
• Support network testing, validation, commissioning, and troubleshooting across development, laboratory, and customer environments.
• Participate in network automation initiatives using Ansible, Python, or similar technologies.
• Work with cross-functional teams to identify network risks, improve reliability, and standardize network configurations across Fluence products.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Electrical Engineering, or a related technical field.
• 5-8+ years of hands-on experience in network engineering, infrastructure, or industrial networking.
• Strong knowledge of TCP/IP, routing, switching, VLANs, VPNs, NAT, DNS, DHCP, and NTP.
• Hands-on experience configuring and troubleshooting Cisco switches, routers, and Palo Alto firewalls.
• Experience with network segmentation, firewall policies, and secure remote access solutions.
• Strong troubleshooting skills using tools such as Wireshark, tcpdump, traceroute, and other network diagnostic utilities.
• Working knowledge of Linux networking, particularly Ubuntu-based environments.
• Experience developing network diagrams, technical documentation, and configuration standards.
• Strong analytical, problem-solving, and communication skills.
• Ability to collaborate effectively with geographically distributed engineering and product development teams.

Preferred Qualifications

• Experience working in Operational Technology (OT), Industrial Control Systems (ICS), energy storage, renewable energy, or power generation environments.
• Knowledge of industrial protocols such as Modbus TCP, OPC UA, MQTT, and BACnet.
• Familiarity with IEC 62443, NERC CIP, and industrial cybersecurity practices.
• Experience with network automation using Ansible, Python, or infrastructure-as-code tools.
• Knowledge of virtualization technologies, including VMware ESXi and virtual networking.
• Experience with network monitoring tools such as Zabbix, PRTG, or similar platforms.
• Familiarity with high-availability network architectures, redundancy, and industrial network reliability.
• Professional certifications such as CCNP, CCNA, PCNSE, or equivalent.

Key Competencies

• Network Architecture and Design
• Routing, Switching, and Firewall Management
• OT/ICS Network Security
• Industrial Communication Protocols
• Linux Networking and Troubleshooting
• Network Automation and Standardization
• Cross-Functional Collaboration
• Technical Documentation and Problem-Solving

Our Culture

At Fluence, our culture is the foundation that drives our ambitious growth strategy and fuels our mission to transform the future of energy. Our core cultural pillars empower us to innovate, collaborate, and lead with purpose, ensuring we continue to deliver unparalleled value to our customers and the world.

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