Application Security Intern - GPSU/NE

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation’s top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. Overview As part of the GPSU program, we are seeking an Application Security Intern to support GuidePoint Security’s Northeast region. In this role, you will gain hands-on experience across three core areas: AppSec tool management, manual code review, and AI harness development. You will work under direct mentorship from experienced practitioners on real work, not simulations. Prior directly related experience is not required, but technical aptitude and genuine curiosity about application security are essential. Currently enrolled, or recently graduated with a degree in computer science, software engineering, or a related engineering field is required, or equivalent demonstrated by significant hands-on experience with multiple programming languages. You will work with the NE AI and AppSec teams as part of the NE DevSecOps team, building practical skills in tooling, code analysis, and AI-enabled security automation. You will also participate in limited client-facing engagements under mentorship, gaining early exposure to professional security consulting. Responsibilities AI Harness Development Build and iterate on AI-assisted security harnesses under mentorship, including prompt design, tool integration, and output validation Develop AI-driven workflows for security reporting, findings documentation, and evidence collection Research and evaluate emerging AI models and frameworks applicable to application security workflows Contribute to prototype builds that integrate LLM APIs into AppSec tooling and testing pipelines Participate in agentic pentesting tool evaluations, documenting findings and supporting harness refinement AppSec Tool Management Operate and configure SAST, DAST, SCA, IAST, and RASP tools under mentorship, gaining hands-on experience with each tool category Triage and validate findings from automated security tools, distinguishing true positives from false positives Support tool configuration, tuning, and integration tasks within CI/CD pipelines and SDLC workflows Assist in evaluating and benchmarking emerging AppSec tools, including agentic pentesting platforms Participate in client-facing tool discussions and shadowed engagements under mentorship Manual Code Review Review application source code for common vulnerability classes including injection flaws, authentication weaknesses, and insecure data handling Perform manual code review under mentorship across multiple languages, applying OWASP and secure coding standards Document findings with supporting evidence, risk context, and remediation guidance Collaborate with the AppSec team to correlate manual review findings with automated tool output Shadow client code review engagements and contribute to findings documentation under mentorship Qualifications Currently enrolled, or recently graduated with a degree in computer science, software engineering, or a related engineering field; significant hands-on experience with multiple programming languages (required) Exposure to one or more programming languages (Python, JavaScript, Java, or similar) and interest in reading and analyzing code Demonstrated interest in AI tools and their application to security workflows Strong written and verbal communication skills, with the ability to document findings and present results to technical audiences Technical aptitude and eagerness to learn hands-on in a fast-paced, practitioner-led environment Eastern/Central time zone, preferred Internship Details and Expectations This is a part-time, remote paid internship ($20/hr) that runs for 12 weeks, with potential for full-time employment at the conclusion of the internship. Interns are expected to: Be physically located within the United States during the entire duration of the internship Work 25-29hrs/wk Monday-Friday supporting the Eastern Time Zone Have a personal computing device and access to high-speed internet during working hours This position is not available for candidates living in the following states: Alaska, California, Hawaii, New Mexico, New York, Oregon, Washington and Wyoming. The below perks are for those that join GuidePoint Security for full-time employment only. We use Greenhouse Software as our applicant tracking system and Zoom Scheduler for HR screen request scheduling. At times, your email may block our communication with you. Please be sure to check your SPAM folder so that you don’t miss updates on your application. Why GuidePoint? GuidePoint Security is a rapidly growing, profitable, privately-held value added reseller that focuses exclusively on Information Security. Since its inception in 2011, GuidePoint has grown to over 1,300 employees, established strategic partnerships with leading security vendors, and serves as a trusted advisor to more than 6,200 customers. Firmly-defined core values drive all aspects of the business, which have been paramount to the company’s success and establishment of an enjoyable workplace atmosphere. At GuidePoint, your colleagues are knowledgeable, skilled, and experienced and will seek to collaborate and provide mentorship and guidance at every opportunity. This is a unique and rare opportunity to grow your career along with one of the fastest growing companies in the nation. Some added perks…. Remote workforce primarily (U.S. based only, some travel may be required for certain positions, working on-site may be required for Federal positions) Group Medical Insurance options: Zero Deductible PPO Plan (GuidePoint pays 90% of the premium for employees and 70% for family plans (spouse/children/family) or High Deductible Health Plan with HSA (GuidePoint pays 100% of the employees premiums and 75% for family plans (spouse/children/family). If you choose the High Deductible / HSA plan, GPS will contribute in 4 equal quarterly installments: ($850 per EE annually / $1750 per family annually (includes spouse/children/family options) Group Dental Insurance: GuidePoint pays 100% of the premium for employees and 75% of family plans 12 corporate holidays and a Flexible Time Off (FTO) program Healthy mobile phone and home internet allowance Eligibility for retirement plan after 2 months at open enrollment Pet Benefit Option