Role Description Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey. Position: ChatGPT Power User Type: Contract Compensation: $100 (one-time) Location: Remote Role Responsibilities - Complete a short consent form via DocuSign to authorize access to your personal ChatGPT history. - Link and share your ChatGPT history following provided instructions. - Provide the email associated with your personal ChatGPT account. - Self-verify that your account meets eligibility criteria with provided instructions. Qualifications - Must be based in the United States. - Heavy ChatGPT user: 40+ conversations between January 1 and June 1, 2026. - At least 1 saved memory on your account. - A personal ChatGPT account that is more than 3 months old. - Conversations primarily in English. Requirements - $100 (one-time) for linking your personal ChatGPT history and completing the consent form, paid after verification. - Payment issued after verification, which may take up to two weeks. Application Process - Upload resume - AI interview based on your resume - Submit form Resources & Support - For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome - For any help or support, reach out to: support@mercor.com - Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

• Partner with product leaders to develop and embed a UX research and testing strategy • Identify, design, and prioritize research and testing opportunities across multiple modalities • Manage and collaborate with a specialized third-party research firm for study design, recruitment, and execution • Develop unbranded prototypes and simulated experiences for testing new features

• Plan, design, and conduct qualitative and quantitative user research studies across multiple product areas, including ACA, Payments, Platform Integrations, Administration, and Civic Platform. • Lead usability testing efforts to evaluate product experiences and identify opportunities for improvement. • Analyze research findings and synthesize insights into clear, actionable recommendations for Product, Design, and Engineering teams. • Develop and maintain user personas, journey maps, and other research artifacts that support product strategy and design decisions. • Partner with Product Managers and UX Designers to define research objectives and align studies with business and customer goals. • Conduct user interviews, surveys, contextual inquiries, and other research activities to better understand customer needs and behaviors. • Communicate research findings through presentations, reports, workshops, and stakeholder discussions. • Advocate for user-centered design principles and promote the integration of research throughout the product development lifecycle. • Establish and maintain research best practices, methodologies, and repositories of customer insights. • Collaborate with cross-functional teams to ensure research findings are incorporated into product roadmaps and design solutions.

About the Team: The Sensors Division at STR focuses on technology development for advanced sensor systems and platforms in support of national security requirements. Our particular focus areas include airborne/spaceborne/surface-based radar, electronic warfare, underwater acoustics, hyperspectral imaging, and EO/IR sensing. To support these missions, the Division’s efforts span multiple technical areas, including RF analog/digital hardware, acoustic hardware, signal processing algorithms, machine learning algorithms, systems analysis, and real-time embedded processor implementation. The Algorithms, Processing and Experimentation (APEX) Group specializes in development of RF/radar modes, skills and applications, with particular emphasis on advanced signal processing chains and associated algorithm research. We mature these technologies with the objective of implementation, integration, and eventual utility in RF-based systems, typically tailoring our work for highly specific Defense (e.g., Air Force, Space Force, Navy, DARPA, etc.) and Intelligence Community needs. About the Role: As a Lead Signal Processing Researcher, you will create and lead technical teams that develop, test, integrate, and demonstrate novel signal processing, optimization, and machine learning algorithms for advanced electronic warfare and sensor applications. A successful candidate will have demonstrated leadership skills and substantial expertise in several of the following areas: optimization, electronic warfare, adaptive signal processing, machine learning, algorithm development, algorithm integration, test & evaluation, model & simulation, systems engineering, radar systems, or communications systems. This position requires skills working as part of and leading multi-disciplinary teams designing, analyzing, integrating, and demonstrating signal processing algorithms for complex systems. What you will do: - Develop electronic warfare and radar system concepts, signal processing and machine learning algorithms, and RF solutions to remote sensing challenges - Provide technical leadership to small, multi-disciplinary teams that develop, implement, test, and integrate novel sensing, electronic warfare, and signal processing systems - Direct Modeling and Simulation activities of advanced RF systems in support of algorithm development, test, and integration - Plan and support algorithm test and evaluation activities, including performance assessment in laboratory and field environments - Clearly communicate with customers, stakeholders, sponsors, prime- and subcontractors Who you are: - Active Security Clearance, with eligibility to support special access programs, for which US Citizenship is required by the US government - PhD, MS, or BS in Electrical Engineering, Applied Mathematics, Physics, or related technical discipline with 3-8+ years of relevant experience depending on degree - Strong scientific programming skills including Matlab, Python, Simulink and/or C/C++ - Strong communication skills and the ability to describe complex technical concepts to fellow researchers as well as to non-technical people - Ability to translate customer requirements to determine research focus - Ability to create and present deep technical briefings as well as high-level briefings to Customers and senior management - Experience with designing, implementing, testing, and analyzing ML/AI algorithms - Strong understanding of radar architectures, waveforms, modes, and RF signal chains Even Better: - Current TS/SSBI with SCI and ability to gain and hold SCI/SAP accreditations - Experience with advanced RF system concepts, signal processing, open architectures, and systems integration - Experience in Software Development - Ability to survey literature to determine state-of-the-art, incorporate recent research, and transition it into integrated, tested solutions - Understanding and experience interacting with decision-makers and customers to translate mission needs into an end-to-end, integrated analytical solution Pay Information Full-Time Salary Range: $173,000 - $216,000 The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions. STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us. STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer. STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info. STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws. If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info. Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.