Job Description
About The Company
Tata Communications Redefines Connectivity with Innovation and IntelligenceDriving the next level of intelligence powered by Cloud, Mobility, Internet of Things, Collaboration, Security, Media services and Network services, we at Tata Communications are envisaging a New World of Communications
We are seeking a Senior Software Engineer to join
our Data Plane team, the engine room of our entire platform. This role is for a
Systems-level Engineer Who Is Passionate About Performance And Virtualization.
You will be responsible for building the high-performance Virtual Network
Functions (VNFs) that act as our multi-cloud gateways, focusing on raw packet
processing speed, low-latency, and rock-solid stability. This is a deep,
technical role where you will work close to the metal, leveraging cutting-edge
technologies to build a data plane that can handle massive throughput with
maximum efficiency.
Responsibilities
High-Performance VNF Development: Design, develop,
and maintain the core data plane software for our multi-cloud gateways in C/C++
and Go, with a relentless focus on performance and
reliability.
Packet Processing Optimization: Implement and
optimize high-speed packet processing pipelines using modern data plane
frameworks like DPDK and VPP to achieve line-rate throughput.
Linux Networking Internals: Dive deep into the
Linux kernel and networking stack to troubleshoot complex performance issues,
tune system parameters, and build highly efficient networking
components.
Virtualization and Stability: Ensure the
performance and stability of our data plane VNFs running on virtualization
platforms like KVM. You will be responsible for the entire lifecycle of the
gateway, from development to deployment.
Data Plane Integration: Collaborate closely with
the control plane team to integrate routing logic, security policies, and
tunneling protocols (IPsec, VXLAN) into the data plane.
Mentorship and Technical Excellence: Mentor junior
engineers and contribute to a culture of technical excellence, robust design,
and high-quality code.
Required Qualifications
5+ years of experience in systems-level software
development, with a focus on networking or building high-performance data
planes.
Expert-level proficiency in C/C++ and/or Go for
building low-latency, multi-threaded applications.
Hands-on, production-level experience with
high-performance packet processing technologies such as DPDK or
VPP.
Deep, practical knowledge of Linux networking
internals (kernel stack, sockets, Netfilter, etc.).
Experience with virtualization technologies,
particularly KVM, and running network functions in a virtualized environment.
Strong understanding of L2/L3 networking protocols
(e.g., TCP/IP, Ethernet, VXLAN, Routing).
Preferred Qualifications
Experience with network security protocols such as
IPsec.
Familiarity with container networking (CNI) and
cloud-native technologies like Kubernetes.
Experience with low-level performance analysis and
optimization tools (e.g., eBPF, bpftrace, SystemTap, gdb).
Contributions to relevant open-source projects
(DPDK, VPP, OVS, FRR, etc.).
Experience working in a fast-paced
environment.
