{"id":3299577,"url":"https://alion.io/job/sonicwall-software-dev-principal-engineer-dpi-ssltls-security","title":"Software Dev Principal Engineer - DPI experience is a must*","company":{"id":685324,"name":"SonicWall","domain":"sonicwall.com","url":"https://alion.io/company/sonicwall","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":86,"open_postings":7,"ghost_share":0,"stale_share":0.571,"repost_share":0,"time_to_fill_p50_days":43,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":21000,"max_usd":52000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":74},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BoringSSL","optional":false},{"name":"C++","optional":false},{"name":"OpenSSL","optional":false},{"name":"PKI","optional":false}],"status":"live","first_seen_at":"2026-10-26T18:27:05Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-28T07:29:33Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities. \nFor more information, visit www.sonicwall.com or follow us on X, LinkedIn, Facebook, and Instagram. \nAbout the Role\nWe are seeking a Principal Engineer to lead the architecture and development of Deep Packet Inspection (DPI) and SSL/TLS Decryption engines for our NGFW appliance and virtual firewall product lines. You will drive the design of high-throughput L7 inspection and threat prevention capabilities - including Anti-Virus, Anti-Spyware, IPS, Content Filtering, and Application Control - at scale across 10G-100G+ deployments.\nResponsibilities\nArchitect and evolve the DPI engine for multi-gigabit stream-based L7 traffic inspection on NGFW appliances.\nLead design of the SSL/TLS decryption pipeline to enable security services inspection over encrypted traffic.\nDefine integration strategy between the decryption layer and downstream security services (AV, IPS, Anti-Spyware, Content Filtering, Application Control).\nDrive hardware acceleration strategy for cryptographic and pattern-matching workloads.\nChampion security hardening practices and ensure compliance with modern cryptographic standards.\nOwn architecture reviews, author technical specifications, define performance benchmarks, and mentor senior engineers.\nRequirements\n10+ years of C/C++ experience in high-performance networking, packet processing, or L7 security engines on NGFW or carrier-grade platforms.\nStrong expertise in SSL/TLS internals - TLS 1.2/1.3, PKI, certificate management, and OpenSSL/BoringSSL.\nHands-on experience building or optimizing DPI or security service engines (AV, IPS, Content Filtering, or Application Control) on commercial NGFW platforms.\nProficiency in multi-core, low-latency C/C++ programming - concurrency, memory optimization, and zero-copy techniques.\nStrong debugging and profiling skills across complex, multi-threaded networking environments.\nNice to Have\nFamiliarity with NGFW security services from leading industry vendors.\nExposure to modern encrypted protocol standards (HTTP/3, QUIC, DoH, ECH/ESNI).\nExperience with virtual or cloud firewall performance tuning.\nHands-on with network traffic generation and testing tools (Spirent, IXIA, TRex).\nSonicWall is an equal opportunity employer. \nWe 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.\nAt SonicWall, we pride ourselves on recruiting a diverse mix of talented people and providing active security solutions in 100+ countries.\nApplicant Privacy Notice","description_format":"text","description_chars":3410,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Network Security","Endpoint Security"],"lifecycle":[{"event":"open","at":"2026-10-26T23:15:45Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":43,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/sonicwall-software-dev-principal-engineer-dpi-ssltls-security","json_url":"https://alion.io/job/sonicwall-software-dev-principal-engineer-dpi-ssltls-security.json","meta":{"generated_at":"2026-10-28T11:46:57Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":15503,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":685324},"rest":"https://alion.io/mcp/rest/get_company?id=685324"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsonicwall-software-dev-principal-engineer-dpi-ssltls-security"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsonicwall-software-dev-principal-engineer-dpi-ssltls-security"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsonicwall-software-dev-principal-engineer-dpi-ssltls-security"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/sonicwall-software-dev-principal-engineer-dpi-ssltls-security\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsonicwall-software-dev-principal-engineer-dpi-ssltls-security"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3299577}},{"tool":"search_jobs","arguments":{"company":"sonicwall.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3299577},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}