---
title: 'Senior Software Engineer - IPv6 Networking exp is a must** at SonicWall'
canonical: 'https://feeny.ai/job/senior-software-engineer-ipv6-networking-exp-is-a-must-sonicwall-pune-se95qaqp63pj'
type: 'job'
last_seen: '2026-09-14'
---

# Senior Software Engineer - IPv6 Networking exp is a must** at SonicWall

- **Company:** SonicWall
- **Location:** Pune, India
- **Posted:** 2026-09-07
- **Last confirmed live:** 2026-09-14
- **Apply:** https://job-boards.greenhouse.io/sonicwall/jobs/8121346

## Job description

[SonicWall](https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fc212.net%2Fc%2Flink%2F%3Ft%3D0%26l%3Den%26o%3D4263951-1%26h%3D4126915226%26u%3Dhttps%253A%252F%252Fnam04.safelinks.protection.outlook.com%252F%253Furl%253Dhttps%25253A%25252F%25252Fwww.sonicwall.com%25252F%2526data%253D05%25257C01%25257Cbfitzgerald%252540SonicWall.com%25257Ca6c16b82afc749239f1c08dbda330d94%25257C84fe6f401cbc473083288018b2af88bc%25257C1%25257C0%25257C638343685070400977%25257CUnknown%25257CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%25253D%25257C3000%25257C%25257C%25257C%2526sdata%253DQiWUyjNRdG%25252F5Rg2xvGXa1CYzr9V6BNnIgriz33Hk4vw%25253D%2526reserved%253D0%26a%3DSonicWall&data=05%7C02%7CNikhilaR%40SonicWall.com%7Cfd3ae83762384be031d508dcdf3d2ddf%7C84fe6f401cbc473083288018b2af88bc%7C1%7C0%7C638630701067920926%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=GhrhwS9jae1nk4KBGBzKfBcXS7BDBmkWDO87fbJLQxQ%3D&reserved=0) is a cybersecurity forerunner with more than 30 years of expertise and is recognized as a leading partner-first company, ensuring our partners and their customers are never alone in the fight against cybercrime. With the ability to build, scale and manage security across the cloud, hybrid and traditional environments in real-time, SonicWall provides relentless security against the most evasive cyberattacks across endless exposure points for increasingly remote, mobile and cloud-enabled users. With its own threat research center, SonicWall can quickly and economically provide purpose-built security solutions to enable any organization—enterprise, government agencies and SMBs—around the world. For more information, visit [www.sonicwall.com](https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fc212.net%2Fc%2Flink%2F%3Ft%3D0%26l%3Den%26o%3D4263951-1%26h%3D2643321098%26u%3Dhttps%253A%252F%252Fnam04.safelinks.protection.outlook.com%252F%253Furl%253Dhttp%25253A%25252F%25252Fwww.sonicwall.com%25252F%2526data%253D05%25257C01%25257Cbfitzgerald%252540SonicWall.com%25257Ca6c16b82afc749239f1c08dbda330d94%25257C84fe6f401cbc473083288018b2af88bc%25257C1%25257C0%25257C638343685070400977%25257CUnknown%25257CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%25253D%25257C3000%25257C%25257C%25257C%2526sdata%253DXI%25252FDFdF08xnLTx4H7uCLIOH1N6kWKxObFvd9KJwK2Lc%25253D%2526reserved%253D0%26a%3Dwww.sonicwall.com&data=05%7C02%7CNikhilaR%40SonicWall.com%7Cfd3ae83762384be031d508dcdf3d2ddf%7C84fe6f401cbc473083288018b2af88bc%7C1%7C0%7C638630701067946534%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=4g9iPS3CN7E0hNoG8nisr9%2F%2B1iThtyJLQkZfTTFjk38%3D&reserved=0) or 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## About the Role

SonicWall is seeking a Senior Software Engineer with deep IPv6 expertise to lead the design, implementation, and hardening of IPv6 capabilities across the Sonicwall firewall firmware stack. As a Principal Engineer, you will be the technical authority for IPv6 feature parity, protocol correctness, and interoperability across SonicWall Next-Generation Firewall (NGFW) platforms. This role is ideal for engineers with hands-on experience delivering IPv6 in high-performance router, switch, or carrier-grade networking products who are looking to apply that expertise in the embedded network security domain.

## Responsibilities

- Lead IPv6 Architecture & Feature Delivery — Own end-to-end design and implementation of IPv6 features across the Sonicwall frewall networking stack, including IPv6 routing, interface addressing, DHCPv6, NDP, MLDv2, and IPv6 Policy-Based Routing (PBR).
- Drive IPv6 Feature Parity — Identify and close gaps between IPv4 and IPv6 feature sets across subsystems — including VPN Tunnel Interfaces, IPsec/IKEv2, SSL-VPN, Syslog, SNMP, and NAT64 — ensuring consistent dual-stack and IPv6-only operation.
- Design High-Performance IPv6 Packet Processing Paths — Architect and optimize the IPv6 dataplane for packet forwarding, classification, ACL matching, and session lookup within the sonicwall high-performance packet-processing pipeline.
- Resolve Complex IPv6 Protocol Issues — Diagnose and resolve deep-rooted interoperability, conformance, and performance issues involving IPv6 neighbor discovery, prefix delegation, ICMPv6 error handling, and fragmentation edge cases.
- Establish IPv6 Protocol Conformance Standards — Define and drive compliance with IETF IPv6 RFCs (RFC 2460, RFC 4291, RFC 4861, RFC 4862, RFC 6724, RFC 8200, and related extensions) within the Sonicwall frewall codebase.
- Cross-Functional Collaboration — Work closely with Platform, Security, Data Platform, and QA teams to integrate IPv6 changes safely across subsystems and validate correctness at scale.
- Prototype and Evaluate IPv6 Technologies — Evaluate emerging IPv6 transition mechanisms (464XLAT, MAP-T, CLAT, SRv6) and contribute to next-generation NGFW networking capabilities.
- Influence Technical Direction — Drive architectural decisions, IPv6 scalability strategies, and long-term technical roadmap for protocol parity and government/federal compliance (USGv6, IPv6-ready certification, DoD IPv6 mandates).
- Mentorship & Technical Leadership — Serve as the IPv6 subject-matter expert (SME) for the Sonicwall frewall engineering org; mentor senior and mid-level engineers and lead cross-team IPv6 technical design reviews.

## Requirements

- 7- 9+ years of hands-on C/C++ systems-level development for networking platforms — with a strong emphasis on routers, Layer-3 switches, carrier-grade NAT (CGNAT) devices, or network security appliances.
- Deep IPv6 Protocol Expertise — Proven, production-level implementation experience with:
- IPv6 addressing, subnetting, and prefix delegation (DHCPv6-PD)
- Neighbor Discovery Protocol (NDP), Router Advertisements (RA), and MLDv2
- IPv6 routing protocols (OSPFv3, BGP with IPv6 AFI/SAFI, RIPng)
- IPsec/IKEv2 over IPv6 transport
- IPv6 ACLs, PBR, and traffic classification at line rate
- IPv6 transition and coexistence mechanisms (Dual-Stack, 6in4, 6rd, NAT64/DNS64, 464XLAT)
- L2/L3/L4 Networking Depth — Solid understanding of Ethernet, VLANs, 802.1Q, bridging, routing (static and dynamic), NAT, firewall state tables, and VPN tunneling in the context of both IPv4 and IPv6.
- High-Performance Packet Processing — Experience with DPDK, ODP, OFP, XDP/eBPF, or comparable frameworks for low-latency, high-throughput packet forwarding is a strong advantage.
- Protocol Conformance & Testing — Experience validating IPv6 implementations against IETF RFC requirements and government IPv6-ready test suites (USGv6, IPv6-Ready Logo Phase-2) is highly desirable.
- Strong Debugging & Diagnostic Skills — Proficient with tcpdump, Wireshark (IPv6 dissectors), GDB, kernel trace tools, and network emulation environments (GNS3, EVE-NG, or equivalent) for root-cause analysis of IPv6 issues.
- Communication & Leadership — Excellent written and verbal communication skills with the proven ability to lead cross-functional IPv6 design discussions, write technical specifications, and represent engineering in product and architecture reviews.

## Nice to Have

- Experience with government / federal IPv6 compliance requirements (DoD IPv6 mandate, NIST SP 500-267, USGv6 Profile).
- Exposure to SRv6 (Segment Routing over IPv6) or MPLS over IPv6 architectures.
- Familiarity with Sonicwall frewall, SonicWall NGFWs, or similar embedded network security firmware.
- Working knowledge of WireGuard over IPv6 transport.
- Experience with automated IPv6 test frameworks (RFC 2544, IXIA, Spirent, or similar).

## #LI-DS9

#LI-Pune

#LI-Hybrid

## #LI-IPv6

SonicWall is an equal opportunity employer.

We are committed to creating a diverse environment and are an equal opportunity employer. All qualified applicants receive consideration for employment without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law.

At SonicWall, we pride ourselves on recruiting a diverse mix of talented people and providing active security solutions in 100+ countries.

[Applicant Privacy Notice](https://www.sonicwall.com/legal/job-applicant-privacy-notice/)

## About SonicWall

## Company Overview
- **One-liner**: SonicWall delivers advanced, cost‑effective cybersecurity solutions for organizations of all sizes, powered by real‑time threat intelligence and a partner‑first platform.
- **Entity Type**: Private (owned by Francisco Partners; no public ticker)
- **Headquarters**: Milpitas, California, USA
- **Founded**: 1991
- **Founders**: Not publicly listed (company was originally founded as SonicWALL, Inc.)

## Core Business
- **Primary industries**: Computer and Network Security, Cybersecurity
- **Target customers**: SMBs, mid‑market enterprises, government agencies, channel partners (10,000+ global partners)
- **Mission**: To design and develop advanced, cost‑effective cybersecurity solutions built on superior threat intelligence that evolves with partners’ and customers’ needs.
- **Purpose**: To protect and empower the well‑being of organizations online.

## Products & Services
- **Next‑Generation Firewalls (NGFW)**: Hardware and virtual firewalls with integrated threat prevention, intrusion detection, and application control.
- **Cloud Secure Edge (CSE) / ZTNA**: Zero‑trust network access solutions for secure remote access.
- **Endpoint Protection**: Anti‑virus, anti‑malware, and advanced threat protection for endpoints.
- **SonicWall Unified Management**: Multi‑tenant architecture for centralized policy and device management.
- **Managed Protection Bundle**: Subscription service backed by SonicWall’s threat research and 24/7 SOC.
- **SAMI (SonicWall AI)**: Embedded AI to simplify operations, resolve issues faster, and reduce noise.
- **Global Response Intelligent Defense (GRID) Threat Network**: Real‑time threat intelligence network powering all products.

## Market Standing
- **Valuation**: Not disclosed (private company)
- **Annual Revenue**: Approximately $480 M (estimated; source: LinkedIn)
- **Total Funding**: Not applicable (private, owned by Francisco Partners; previously acquired by Dell and later taken private)
- **Notable Investors/Partners**: Francisco Partners (parent company); 10,000+ channel partners; 1.1 million security sensors deployed in 215 countries
- **Growth Signals**: 
  - Active job postings surged +92.7% monthly and +172.4% quarterly (LinkedIn data)
  - Recent introduction of SAMI AI and new Managed Protection bundle
  - Expanding Cloud Secure Edge (ZTNA) offerings
  - Headcount of ~1,241 (LinkedIn) to ~1,832 (Built In) – conflicting reports; both cited below

## Competitive Advantages
- **Partner‑first ecosystem**: Strong channel partner network (10,000+) gives broad reach and loyalty.
- **30+ years of cybersecurity expertise**: Deep domain knowledge and a dedicated threat research center (GRID).
- **Real‑time, multi‑vector protection**: Covers network, cloud, endpoint, and remote access in a unified platform.
- **Cost‑effective for SMBs**: Positioned as affordable yet enterprise‑grade security.
- **Embedded AI (SAMI)**: Differentiates by simplifying operations and reducing alert fatigue.

## Strategic Focus
- **AI‑driven automation**: Expanding SAMI to automate threat response and streamline management.
- **Cloud‑first security**: Growing Cloud Secure Edge (ZTNA) and managed services for hybrid/remote work.
- **Partner enablement**: Strengthening tools and programs for channel partners.
- **Global expansion**: Operating in 46 countries; hiring aggressively in India, US, Canada, and Europe.

## Why Work Here
- **Culture**: Collaborative, innovative, and fun environment with a “never alone” philosophy. Employee Resource Groups (ERGs) foster inclusion and belonging.
- **Remote/Hybrid Policy**: Mix of remote, in‑office, and hybrid roles; many positions are fully remote (US, Canada, Europe, India).
- **Wellness & Benefits**: Mental and physical wellness programs, paid time off, ample holidays, work‑life balance, and competitive compensation.
- **Recognition**: Awards tied to core values; outstanding performance is celebrated.
- **Engineering Culture**: Heavy focus on networking, security, and AI; teams in Pune, Bengaluru, and US offices. Strong learning and development opportunities.
- **Social Responsibility**: Community engagement, fundraising for nonprofits, and partnerships to access untapped talent pools.

## Sources
1. [SonicWall Careers](https://www.sonicwall.com/careers)
2. [SonicWall Website](https://www.sonicwall.com/)
3. [SonicWall Jobs on Greenhouse](https://job-boards.greenhouse.io/sonicwall)
4. [LinkedIn Company Page](https://www.linkedin.com/company/sonicwall)
5. [Built In SonicWall Profile](https://builtin.com/company/sonicwall)

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