Full-Time
Senior Staff Machine Learning Engineer
DNS Security
Posted on 9/9/2025
Palo Alto Networks
10,001+ employees
Firewall and cloud security provider
No salary listed
Company Historically Provides H1B Sponsorship
Santa Clara, CA, USA
In Person
 AI & Machine Learning (2) |
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- BS/MS in Computer Science or related fields with security research experience
- Creative thinker and team player. Have great passion and be highly self-motivated in data-driven security research
- Expertise in DNS and DNS security
- Good knowledge of machine learning techniques and algorithms, such as k-NN, Naive Bayes, SVM, Decision Trees, Logistic Regression, Deep Learning, and Boosting
- Familiar with large-language models (LLMs) and experience to leverage them to address cybersecurity threats
- Excellent programming skills in Python, Shell script, Go, or SQL
- Understanding of core network protocols (TCP/IP, HTTP/HTTPS, etc.)
- Knowledge and experience with modern databases and big data tools, such as MySQL, MongoDB, Elasticsearch, Redis, BigQuery
- Be comfortable working independently, efficiently
- Excellent communication (written and verbal) and presentation skills
- Experience with malware traffic analysis is a plus
- Experience with graph database (e.g. Neo4j, Amazon Neptune), graph-based analysis is a plus
- Experience with Google Cloud Platform is a plus
- Proven success (past publication record, open source project contributions) is a big plus
- Track and research emerging threats and innovate new ways to identify malicious indicators used by malware and attacks, including domains, URLs, IP addresses, sha256, email addresses, etc.
- Design and build scalable and extensible prevention/detection systems
- Leverage data-driven approaches, such as statistical analysis, machine learning, and other advanced techniques
- Convert research results and discoveries into products, research papers, etc.
- PhD in Cyber Security or Machine Learning is a plus
- Experience with malware traffic analysis is a plus
- Experience with graph database (e.g. Neo4j, Amazon Neptune), graph-based analysis is a plus
- Experience with Google Cloud Platform is a plus
- Proven success (past publication record, open source project contributions) is a big plus
Palo Alto Networks provides hardware, software, and subscription-based security solutions to protect organizations from cyber threats. Its products include network firewalls (Strata), cloud security (Prisma Cloud), and AI-powered security operations (Cortex), which work together to secure on-premises and cloud environments, manage identity and access, and detect threats. The company differentiates itself by offering an integrated, end-to-end security stack that combines hardware, software licenses, and ongoing services across enterprises, SMBs, and government clients. Its goal is to deliver comprehensive protection for networks, data, and applications as organizations move between data centers and cloud environments.
Company Size
10,001+
Company Stage
IPO
Headquarters
Santa Clara, California
Founded
2015
Simplify's Take
What believers are saying
- AI-driven security demand is lifting bookings and next-generation security ARR.
- Sovereign Cortex opens regulated European buyers in healthcare, finance, and government.
- Platform consolidation increases cross-sell into multi-product enterprise customers.
What critics are saying
- CrowdStrike's faster endpoint innovation pressures Palo Alto's platform consolidation.
- Fortinet's faster revenue growth threatens firewall refresh and subscription upsells.
- Rich valuation leaves little margin for execution misses or guidance disappointments.
What makes Palo Alto Networks unique
- Built on a next-generation firewall platform that expanded into cloud and SecOps.
- Unified control plane spans network security, cloud security, and security operations.
- Prisma AIRS targets autonomous AI agents through tool-call and network-flow inspection.
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Growth & Insights and Company News
6 month growth
↓ -6%1 year growth
↓ -6%2 year growth
↓ -6%Wall Street strategists are viewing recent tech stock volatility as a buying opportunity following a two-week Iran ceasefire. The iShares Expanded Tech-Software Sector ETF has fallen 12% over the past month, despite the S&P 500 rising slightly. Ben Emons of FedWatch noted "a bit of an overreaction", whilst Mark Gibbens of Gibbens Capital said it's "time to jump in". Strategists highlighted opportunities in Palantir Technologies, Palo Alto Networks, and Oracle, despite recent share price declines. Nvidia has dropped from recent highs to trade at 21 times forward earnings. Tiffany McGhee of Pivotal Advisors praised Oracle's cash flow and enterprise contracts, whilst Gradient Investments' Keith Gangl called Palo Alto a rare opportunity to buy quality "on sale". Strategists cautioned that volatility remains, but emphasised AI as a powerful catalyst.
Palo Alto Networks has received a Buy initiation from Benchmark with a $200 price target, based on the company's trajectory towards achieving Rule of 60 profitability status in FY2026 through 22–23% revenue growth and 37% adjusted free cash flow margin. The cybersecurity firm reported Q2 FY2026 revenue of $2.594 billion, beating estimates, with non-GAAP EPS of $1.03 surpassing the 93 cent estimate. Next-Generation Security ARR reached $6.30 billion, up 33% year-over-year. Despite the stock trading down 10.33% year-to-date and below its 200-day moving average, 44 analysts rate it Buy or Strong Buy with a consensus target of $206.97. However, investors should consider the elevated 42x forward P/E valuation and integration risks from pending acquisitions.
Morgan Stanley identified five top cybersecurity stocks after attending the RSA Conference 2026: Microsoft, Palo Alto Networks, CrowdStrike, SailPoint and SentinelOne. The firm believes these companies are well-positioned to benefit from growing AI security demand as businesses deploy AI agents. Microsoft has 1.6 million security customers and a $20 billion revenue run rate, with analyst Keith Weiss setting a $650 price target, implying 80% upside. Analyst Meta Marshall gave Palo Alto Networks a $223 target (50% upside), noting its broad AI portfolio and advantageous position despite a 20% year-to-date decline. CrowdStrike received a $510 target (38% upside) and was upgraded to a top pick based on its strong endpoint franchise and AI-driven security capabilities.
Palo Alto Networks shares rose 5% on Monday to close at $154.35 following news that CEO Nikesh Arora purchased an additional stake worth $10 million in the company. According to a regulatory filing, Arora acquired 68,085 shares on 27 March at prices ranging from $146.87 to $147.48. The cybersecurity firm also unveiled Prisma AIRS 3.0, a new security platform designed to protect the entire agentic AI lifecycle. The product addresses security challenges in AI-powered enterprises by discovering AI agents across cloud environments, assessing risks continuously and providing real-time protection at scale. Palo Alto Networks said the platform enables enterprises to move beyond simply monitoring AI interactions to safely authorising autonomous execution, closing visibility gaps in AI operations.
Palo Alto Networks has received a buy rating from Freedom Capital Markets, which reduced its price target from $230 to $210 whilst maintaining its recommendation. The cybersecurity firm reported strong second-quarter fiscal 2026 results, with earnings of $1.03 per share beating estimates of $0.94, and revenue of $2.6 billion exceeding expectations of $2.58 billion. Freedom Capital attributed the performance to growing demand for cybersecurity platform integration and successful acquisitions of CyberArk and Chronosphere. The company's third-quarter forecast also surpassed expectations, driven by merger and acquisition activity. The analyst raised revenue forecasts but lowered diluted non-GAAP earnings per share estimates, citing the transitional period of merger integration. Palo Alto Networks provides cybersecurity solutions including firewalls, malware protection and cloud security.