L2/L3 Protocol Development Engineer - Networking Stack

Maimsd Technology

Bengaluru

6-11 Years

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Posted 12 hours ago
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Job Description

Key Responsibilities :
End-to-End Architecture : Lead the greenfield architecture and design of the entire L2/L3 networking stack, including the data plane (Fast Path) and control plane interactions, for a new platform.
Core Protocol Development : Develop high-performance, scalable, and robust code in Embedded C on Linux for the data plane, focusing on L2/L3 forwarding and feature implementation.
L4-L7 Service Integration : Design, implement, and integrate critical L4-L7 protocols with a mandatory focus on OpenSSL, NAT, IPsec, and MacSec.
NOS Expertise : Leverage your deep understanding of Network Operating System (NOS) internals to ensure seamless integration, performance tuning, and system stability.
Line-Rate Processing : Implement logic for line-rate packet processing, including specific requirements for regular expression (RegEx) matching in the data path.
Container Networking : Architect and integrate solutions for container networking, ensuring efficient and scalable connectivity for modern applications.
Validation & Performance Tuning : Utilize traffic generation tools like IXIA to perform rigorous performance validation, stress testing, and functional verification of the entire software stack.
Technical Leadership & Mentorship : Act as the senior technical authority. Mentor engineers, lead design reviews, and establish a center of excellence for network protocol development within the team.
Required Skills & Qualifications (Must-Haves) :
Experience : 12-18 years of hands-on experience in network protocol development, with a proven track record of architecting complex networking software.
Programming : Expert-level proficiency in Embedded C and a strong command of the Linux development environment.
NOS Internals : Exhaustive, hands-on knowledge of NOS internals, control plane/data plane separation, and Fast Path / data plane acceleration techniques.
L2/L3 Protocols : Deep, architectural understanding of L2 switching (VLANs, STP, LACP) and L3 routing (OSPF, BGP, VRF, ECMP).
L4-L7 Mandatory Protocols : Demonstrable, deep implementation experience with the following :
OpenSSL (Integration, session management, crypto offload)
NAT (SNAT, DNAT, connection tracking)
IPsec (Tunnel/Transport mode, IKEv1/v2, ESP/AH)
MacSec (IEEE 802.1AE)
IP Networking Stack : Comprehensive knowledge of the IP networking stack (TCP/IP, UDP) and packet flow through a system.
Testing Tools : Proven experience using IXIA or Spirent for creating complex traffic profiles, performance benchmarking, and debugging.
Container Networking : Solid understanding of container networking concepts (e.g., CNI, veth pairs, network namespaces, overlays).
Desired Skills & Qualifications (Nice-to-Haves) :
Experience with network processors, DPUs, or SmartNICs (e.g., Broadcom, Marvell, NVIDIA).
Proficiency in Python for automation and testing.
Familiarity with hardware-accelerated regex engines.
Prior experience in a customer-facing or solutions architect role.

More Info

Job Type:

Permanent Job

Industry:

Information Technology

Role:

Software Engineer /Programmer

Function:

Employment Type:

Full time

Open to candidates from:

Indian

About Company

Maimsd Technology

At MaimsD Technology, we empower businesses through innovative IT services, strategic hiring solutions, and talent development. Headquartered in Bangalore, India, with a growing presence in Georgia, USA, we deliver scalable recruitment and staffing support across the globe. Our expertise lies in IT hiring, backed by deep industry insight and a rich talent network that spans from entry-level roles to executive leadership. We also offer tailored services including RPO, SOW-based hiring, contract staffing, and executive search — designed to meet the evolving needs of both startups and enterprises. Driven by passion, guided by experience, and committed to excellence — we are your partner in building teams that drive success.

Job ID: 120633285

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