AI Engineer - Pentesting Agent Location: Preference for the UK or US Remote | Full-time Compensation: Competitive Our client is the fastest-growing online cybersecurity training platform in the industry, currently serving more than 6 million users and over 1,000 global businesses, including government agencies and Fortune 500 organizations. With a significant initial investment, the organization is developing a fully autonomous AI pentesting agent designed to plan, exploit, adapt, and report with the speed and precision required for modern offensive security. The team is seeking a talented AI Engineer to join a small, high-impact group dedicated to building this autonomous system from the ground up. This role is ideal for a deeply curious engineer with a passion for AI agents and a strong interest in the cybersecurity domain. The successful candidate will design the core logic of the system, shaping its reasoning, memory, and execution flows to handle complex offensive security tasks reliably. Key Responsibilities - Agent Development: Contribute to the design, development, and optimization of an autonomous AI pentesting agent, focusing on core logic and decision paths. - Core Capabilities: Implement agent functions such as reasoning, complex planning, tool orchestration, and structured memory. - Testing Infrastructure: Build and maintain secure environments to execute, test, and benchmark agent behaviors against offensive security scenarios. - Model Evaluation: Assist in evaluating and comparing various Large Language Models (including Claude, OpenAI, Mistral, and Llama) to optimize specific agent tasks. - Interface & Automation: Build UI components and dashboards using React and support browser automation workflows using Playwright for agent evaluation. - Continuous Refinement: Support the iterative improvement of the agent through experimentation, observability, and rigorous lab testing. - Collaborative Research: Work closely with offensive security researchers to align agent behaviors with real-world attacker workflows and vulnerability exploitation methodologies. Interview Process - Introductory Call: A 30-minute session with the founder and the AI agent team. - Technical Evaluation: A one-hour technical exercise and a live discussion regarding previous work in building AI agents.

• Collaborate closely with our leadership team and cross-functional partners to build thoughtful, impactful end-to-end product features • Lead projects from early design through implementation, delivery, and iteration • Help shape technical systems, internal tools, and engineering practices as the team scales • Balance speed and quality, making pragmatic decisions while maintaining long-term maintainability • Support and mentor teammates, contributing to a collaborative and inclusive engineering culture

• Own and evolve complex, user-facing product areas end-to-end - from product definition and system design to implementation, launch, and iteration • Partner closely with product, design, and engineering leadership to shape roadmap decisions and translate ambiguous problems into durable solutions • Lead high-leverage initiatives that span frontend, backend, and data concerns, setting clear technical direction and guiding execution • Make thoughtful tradeoffs between user experience, system complexity, and delivery speed in a fast-moving product environment • Raise the bar on product quality, system correctness, and engineering craft across the stack • Act as a force multiplier for the team: reviewing designs, mentoring engineers, and unblocking others

• Applies scientific principles to generate new concepts and demonstrate proof of principle via design analysis and prototypes for the new medical devices design and various complex problems • Apply medical device Design Control procedures to successfully develop concepts into products and provide engineering deliverables for all phases (concept, definition, development, qualification and launch) of the Product Development Process (PDP) • Design products used for infusion of fluids and medication, focused on disposable, sterile products used in infusion pumping systems • Perform engineering analysis utilizing tools such as MatLab, and ANSYS Finite Element Analysis (FEA) to assess feasibility and robustness of design • Must be proficient in selection of medical device engineering materials, plastic and metal components design, geometric dimensioning and tolerance analysis (GD&T), critical to function (CTF) and tolerance stack-up analysis • Expertise in medical device risk analysis and Failure Mode Effects and Criticality Analysis (FMECA) as per ISO 14971:2019 regulations, Design for Manufacturability (DFM) and Design for Testability (DFT) • Must be familiar with Lean Management methodology • Develop test methods and fixtures for medical device verification and Validation • Apply analytical and statistical methodologies to support design decisions • Provide technical leadership to internal and external partners for product development and on-market product support • Propose original and innovative technologies and provide input to the legal department when preparing patent applications • Coordinate the activities of designers and technicians to meet overall project objectives • Assess the various technical and schedule risks and define appropriate contingency plans • Communicate up and down the organization with status updates and any technical issues or issues relating to the balance between scope, resource and schedule • Coordinates with third party development partners, specifies project deliverables, and reviews work output • Understands medical regulations and standards and the applicability to product performance and testing requirements • Work on special projects as they arise, including root cause, NCR and CAPA investigations, customer complaints analysis, remediation activities and other ongoing product sustaining work • All other duties as assigned