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Splunk Penetration Tester (Remote US Available) in Boulder, Colorado

Penetration Tester

San Jose, CA | San Francisco, CA | McLean, VA | Remote

We are looking for a smart, passionate, and experienced Penetration Tester with a broad range of experience working in dynamic enterprise environments. Do you want to utilize your hard-won offensive security experience to drive security posture improvements across our organization? As a Penetration Tester, you will do that and more!

Join us as we pursue our disruptive new vision to make machine data accessible, usable and valuable to everyone. Splunk is a company filled with people who are passionate about our product and seek to deliver the best experience for our customers. At Splunk, we’re committed to our work, customers, having fun and most meaningfully, to each other’s success. Learn more about Splunk careers and how you can become a part of our journey!


The Penetration Tester reports to the Sr. Manager of Threat & Vulnerability Management (TVM). This role will be responsible for performing penetration testing, red team assessments, and adversary emulation. The ideal candidate will have previous experience in the following areas: network, web application, and cloud-centric penetration testing. Ability to influence change across functions and apply critical thinking skills are key success factors. Exceptional technical, communication and negotiation skills are necessary for this role, as you will need to provide technical guidance to junior pentesters, perform advanced technical assessments, translate highly technical concepts into business impact and make remediation recommendations.


  • Prioritize, lead, and perform advanced penetration testing for network, web applications, business application, and cloud infrastructure.

  • Guide the team in the development of technical frameworks, tools and execution of pen tests

  • Conduct red team assessments and adversary emulation engagements

  • Coordinate and execute “Purple teaming” exercises in collaboration with the Security Operations team

  • Collaborate with 3rd parties including consulting firms and security researchers on coordinating assessments, validating vulnerability reports/findings and influencing remediation

  • Build processes to coordinate pentests and establish remediation cadence cross-functions

  • Be a standout colleague who enjoys collaborating with, learning from, mentoring, and teaching other team members to create a positive work environment

  • Foster a collaborative environment across a remote team


  • At least 4 years experience in an IT or security function, with at least 2 years of hands-on experience in a penetration testing role

  • Experience with Python, PowerShell, or similar scripting language

  • Experience using industry standard offensive security tools

  • You have proven experience pen testing in web applications, network, wifi and cloud computing solution (AWS, GCP, Kubernetes)

  • You have a proficiency with enterprise operating systems, including Linux and Windows

  • You have practical experience with assessing encryption, IAM systems, VPN and authentication technologies

  • You have extensive knowledge of TCP/IP networking and packet analysis

  • You pride yourself on your proven attention to detail

  • Excellent, efficient problem-solving skills

  • Strong familiarity with at least one of the following: OWASP Top 10, PTES, or NSA Vulnerability and Penetration Testing Standards

  • Experience facilitating penetration testing efforts in one or more of the following Compliance frameworks (FedRAMP, PCI, SOCII, HIPAA)


  • You have professional-level certifications (OSCP, GPEN, GWAPT, GXPN)

  • Experience with higher-level programming languages (C, C++, etc.)

  • Experience with API penetration testing

  • Experience with containerization offensive techniques

  • Exploit development, vulnerability research, bug bounty submissions

We value diversity at our company. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or any other applicable legally protected characteristics in the location in which the candidate is applying.

For job positions in San Francisco, CA, and other locations where required, we will consider for employment qualified applicants with arrest and conviction records.

About Splunk

Splunk was founded to pursue a disruptive new vision: make machine data accessible, usable and valuable to everyone. Machine data is one of the fastest growing and most complex areas of big data—generated by every component of IT infrastructures, applications, mobile phone location data, website clickstreams, social data, sensors, RFID and much more.

Splunk is focused specifically on the challenges and opportunity of taking massive amounts of machine data, and providing powerful insights from that data. IT insights. Security insights. Business insights. It’s what we call Operational Intelligence.

Since shipping its software in 2006, Splunk now has over 13,000 customers in more than 110 countries around the world. These organizations are using Splunk to harness the power of their machine data to deepen business and customer understanding, mitigate cybersecurity risk, prevent fraud, improve service performance and reduce costs. Innovation is in our DNA – from technology to the way we do business. Splunk is the platform for Operational Intelligence!

Splunk has more than 2,700 global employees, with headquarters in San Francisco, an office in San Jose, CA and regional headquarters in London and Hong Kong.

We’ve built a phenomenal foundation for success with a proven leadership team, highly passionate employees and unique patented software. We invite you to help us continue our drive to define a new industry and become part of an innovative, and disruptive software company.

Benefits & Perks: Wow! This is really cool!

SF Only

Medical, full company paid Dental, Vision and Life Insurance, Flexible Spending and Dependent Care Accounts, Commuter Accounts, Employee Stock Purchase Plan (ESPP), 401(k), 3 weeks of PTO, sick leave, stocked micro kitchens in Splunk offices, catered lunches on Mondays, catered breakfast on Fridays, basketball hoops, ping pong, arcade games, BBQ’s, soccer, “Fun Fridays”.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Non SF

Medical, full company paid Dental, Vision and Life Insurance, Flexible Spending and Dependent Care Accounts, Commuter Accounts, Employee Stock Purchase Plan (ESPP), 401(k), 3 weeks of PTO and sick leave. Our work environments vary by location however we believe in hosting amenities and fun activities to fuel our energy. You may find fully stocked micro kitchens, catered lunches on Mondays and breakfast on Fridays, basketball hoops, ping pong, arcade games, BBQ’s, soccer and “Fun Fridays”.

This isn’t a job – it’s a life changer – are you ready?

Individuals seeking employment at Splunk are considered without regards to race, religion, color, national origin, ancestry, sex, gender, gender identity, gender expression, sexual orientation, marital status, age, physical or mental disability or medical condition (except where physical fitness is a valid occupational qualification), genetic information, veteran status, or any other consideration made unlawful by federal, state or local laws. Click here to review the US Department of Labor’s EEO is The Law notice. Please click here to review Splunk’s Affirmative Action Policy Statement.

Splunk does not discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. Please click here to review Splunk’s Pay Transparency Nondiscrimination Provision.

Splunk is also committed to providing access to all individuals who are seeking information from our website. Any individual using assistive technology (such as a screen reader, Braille reader, etc.) who experiences difficulty accessing information on any part of Splunk’s website should send comments to Please include the nature of the accessibility problem and your e-mail or contact address. If the accessibility problem involves a particular page, the message should include the URL of that page.

Splunk doesn't accept unsolicited agency resumes and won't pay fees to any third-party agency or firm that doesn't have a signed agreement with Splunk.

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