Senior Staff Software Engineer

Company: Splunk
Location: Campbell
Posted on: February 5, 2026

Job Description:

In this role, you’ll play a crucial leadership role in architecting, building, and improving systems that defend against cyber threats like phishing, malware, and malicious content delivered via URLs, emails, files, and QR codes. You will drive the development of advanced automated threat analysis tools and lead initiatives to enhance our customers’ security. If youre passionate about cybersecurity and ready to make a real-world impact with your expertise, we encourage you to apply. Your work will significantly strengthen cyber defenses and protect organizations from evolving threats, while mentoring and guiding the next generation of engineers. The Splunk Attack Analyzer (SAA) team streamlines security threat analysis, providing forensic evidence and metadata to customers via API and Portal. As a Senior Staff Software Engineer, youll lead the optimization of backend code and detection capabilities, focusing on automated URL, file analysis, and web navigation. Youll spearhead innovative solutions to overcome challenges posed by threat actors, collaborating across teams to deliver impactful results and sharing your expertise to elevate team performance. Your Impact • Architect, design, and implement detection-as-code and security automation features to identify threats and protect systems and data at scale. • Lead technical investigations, analyze, triage, and respond to complex customer and detection analyst reported code-related false positives and false negatives. • Drive enhancements and maintenance of detection capabilities in existing security platforms; contribute to the continuous improvement of detection coverage, fidelity, and performance. • Champion secure coding best practices and ensure delivery of high-quality, maintainable, and well-tested detection code. • Lead design and code reviews, contribute to technical documentation, and proactively share knowledge across the team and broader organization. • Debug and resolve advanced detection issues, including tuning alerts and investigating false positives/negatives. • Actively participate in Agile workflows, help with sprint planning, and collaborate closely with cross-functional partners. • Shape CI/CD, testing, and automation strategies for detection pipelines in cloud environments. • Develop deep product and threat landscape knowledge to deliver user-focused, effective security detections. • Mentor and coach junior engineers, fostering a culture of technical excellence and growth. Key Proficiencies • Drives feature and platform design and development with advanced programming skills. • Sets and upholds best practices; leads code reviews and technical discussions. • Authors well-tested code with comprehensive test coverage. • Troubleshoots and resolves complex customer issues. • Provides technical leadership and supports system operations at the organization level. • Leads sprint estimation, planning, and technical strategy. • Possesses deep understanding of the product and demonstrates expert-level knowledge of feature areas. Minimum Qualifications • 12 years of professional experience with Bachelor’s Degree; or 8 years experience with Master’s degree in Computer Science, Engineering, Cybersecurity, or related field; or 5 years of experience with PhD and equivalent practical experience. • Experience in software engineering or security engineering, with deep, hands-on expertise in security detection, monitoring, or incident response. • Advanced proficiency in Python or Go, with a proven track record developing robust detection logic or security tooling. • In-depth understanding of file formats commonly abused by attackers; experience writing decoders and reverse engineering abused file formats. • Strong understanding of browser internals, including HTML and JavaScript execution, DOM manipulation, and security implications of active content in web browsers. • Expertise in security operations concepts, including attack techniques (MITRE ATT&CK), log analysis, threat hunting, and secure coding practices. • Strong grasp of software design principles for building scalable and maintainable detection systems. • Advanced experience with cloud platforms (e.g., AWS, GCP, or Azure). • Proficiency with development tools such as Git, CI/CD pipelines, Docker, and Kubernetes. • Excellent debugging and problem-solving skills, especially relating to detection and alerting logic in complex systems. Preferred Qualifications • Exceptional communication skills and ability to collaborate and influence across cross-functional teams. • Demonstrated ability to mentor, coach, and inspire technical teams.

Keywords: Splunk, Elk Grove , Senior Staff Software Engineer, IT / Software / Systems , Campbell, California