Requisition Number: 2376129 Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together. Optum AI is UnitedHealth Group's enterprise AI team. We are AI/ML scientists and engineers with deep expertise in AI/ML engineering for health care. We develop AI/ML solutions for the highest impact opportunities across UnitedHealth Group businesses including UnitedHealthcare, Optum Financial, Optum Health, Optum Insight, and Optum Rx. In addition to transforming the health care journey through responsible AI/ML innovation, our charter also includes developing and supporting an enterprise AI/ML development platform. Optum AI team members: - Have impact at scale: We have the data and resources to make an impact at scale. When our solutions are deployed, they have the potential to make health care system work better for everyone - Do ground-breaking work: Many of our current projects involve cutting edge ML, NLP and LLM techniques. Generative AI methods for working with structured and unstructured health care data are continuously being developed and improved. We are working in one of the most important frontiers of AI/ML research and development - Partner with world-class experts on innovative solutions: Our team members are developing novel AI/ML solutions to business challenges. In some cases, this includes the opportunity to file patents and publish papers about the methods we develop. We also collaborate with AI/ML researchers at some of the world's top universities You'll enjoy the flexibility to work remotely * from anywhere within the U.S. as you take on some tough challenges. For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week. Primary Responsibilities: - Developing new solutions and science best practices in Responsible AI - Developing and implementing models and methods that extend and improve LLM capabilities and reliability - Research, design and implement scalable machine learning solutions - Developing our research and innovation agenda - Design, implement and deploy Deep Learning models, RAG and LLMs - Collaborating with the Optum AI team and fellow scientist and engineers You'll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in. Required Qualifications: - Master degree in computer science, Machine Learning, statistics, engineering, mathematics, or another STEM discipline - 3+ years of DL frameworks such as PyTorch and/or TensorFlow - 2+ years of experience using ML to solve problems in natural language processing (NLP), multimodal RT processing, and/or other AI domains - 2+ years of experience in Generative AI, grounding architectures, fine-tuning LLMs and/or improving pre-train LLM's performance - 2+ years of developing machine learning applications - 1+ year of solid agentic research and developing experience Preferred Qualifications: - Ph.D. in Machine Learning with focus on NLP and/or GenAI - Experience with Advanced Deep Learning, applied math and statistics - Proven solid technical and scientific knowledge about generative AI *All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy Pay is based on several factors including but not limited to local labor markets, education, work experience, certifications, etc. In addition to your salary, we offer benefits such as, a comprehensive benefits package, incentive and recognition programs, equity stock purchase and 401k contribution (all benefits are subject to eligibility requirements). No matter where or when you begin a career with us, you'll find a far-reaching choice of benefits and incentives. The salary for this role will range from $112,300 - $134,800 annually based on full-time employment. We comply with all minimum wage laws as applicable. Application Deadline: This will be posted for a minimum of 2 business days or until a sufficient candidate pool has been collected. Job posting may come down early due to volume of applicants. At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission. #optumaiscience UnitedHealth Group is an Equal Employment Opportunity employer under applicable law and qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations. UnitedHealth Group is a drug - free workplace. Candidates are required to pass a drug test before beginning employment. #OptumTechPJ

• Build practical skills in AI, commerce, sales, media, and customer engagement • Demonstrate how you think, learn, communicate, and execute • Collaborate with Terrific team members • Complete practical challenges and compete for prizes

Role Description Für ein internationales KI-Projekt werden deutschsprachige Mitarbeiter gesucht, die einen modernen KI-Sprachassistenten im Alltag testen. Dabei führst du verschiedene Sprachbefehle aus, bewertest die Antworten der KI und dokumentierst deine Erfahrungen. Die Tätigkeit erfolgt vollständig remote und eignet sich besonders für Personen, die regelmäßig mit digitalen Anwendungen arbeiten und einen Mac besitzen. - Einen KI-Sprachassistenten mit deiner Stimme bedienen - Nachrichten, E-Mails oder Notizen per Spracheingabe erstellen - Der KI verschiedene Aufgaben geben, beispielsweise Texte zusammenfassen, Bilder erstellen oder Tabellen bearbeiten - Die Antworten der KI hinsichtlich Qualität und Verständlichkeit bewerten - Gesprochene Anweisungen dokumentieren und überarbeiten - Ergebnisse in einer strukturierten Projektübersicht erfassen und benötigte Aufzeichnungen hochladen Qualifications - Deutsch auf muttersprachlichem oder nahezu muttersprachlichem Niveau - Gute Englischkenntnisse zum Verständnis der Projektanweisungen - Eigener Mac mit Apple Silicon (M1, M2 oder M3) und macOS Sequoia 15 oder neuer - Sicherer Umgang mit typischen Anwendungen wie E-Mail, Browser, Dokumenten und Tabellen - Sorgfältige und selbstständige Arbeitsweise Benefits - 100 % Homeoffice - Flexible Arbeitszeiten - Projektlaufzeit von etwa drei Wochen - Wöchentliche Auszahlung - Mitarbeit an der Entwicklung innovativer KI-Technologien - Möglichkeit zur Teilnahme an weiteren internationalen KI-Projekten

Role Description We are seeking an AI Security Engineer to lead the design and implementation of security controls, threat models, and incident response capabilities specifically tailored to AI and machine learning systems. The role addresses the unique security challenges posed by LLMs, model APIs, training data pipelines, and AI-powered applications, including prompt injection, model abuse, data exfiltration, and supply chain risks. The ideal candidate has strong security engineering fundamentals and a deep understanding of how modern AI systems work in practice, with hands-on experience designing defenses for both AI-powered applications and the AI infrastructure that supports them. Key Responsibilities - Define and implement security controls specifically targeting LLM and AI-powered application risks. - Build threat models for AI systems, including prompt injection, jailbreaks, data exfiltration, and abuse patterns. - Design and deploy guardrails, content filters, and policy enforcement layers around model endpoints. - Implement runtime detection and response capabilities for adversarial prompts and abusive behavior. - Secure training and fine-tuning pipelines, including data provenance, integrity, and access controls. - Design controls for sensitive data handling, retention, and redaction in LLM workflows. - Lead red-team exercises against AI systems and drive remediation of identified weaknesses. - Evaluate and harden third-party AI services and open-source AI components used internally. - Implement identity, authorization, and tenant-isolation patterns for multi-tenant AI services. - Drive supply chain security for ML artifacts including weights, datasets, and inference dependencies. - Collaborate with privacy, legal, and compliance teams to ensure AI systems meet regulatory obligations. - Develop monitoring, logging, and detection strategies tailored to AI workloads. - Lead incident response for AI-specific security events and drive durable improvements. - Stay current with adversarial ML, LLM security research, and emerging regulatory developments. Qualifications - Bachelor’s or Master’s degree in Computer Science, Cybersecurity, or a related discipline. - Six or more years of security engineering experience, including significant work on AI or ML systems. - Strong understanding of LLM internals, modern AI architectures, and common failure modes. - Hands-on experience designing security controls for AI-powered applications. - Deep knowledge of application security, identity, and cryptography fundamentals. - Experience with threat modeling and security architecture review processes. - Familiarity with adversarial ML, prompt injection, and model abuse research. - Proficiency in Python and at least one systems language. - Strong understanding of cloud security and modern infrastructure controls. - Excellent written and verbal communication skills. Preferred Qualifications - Publications, talks, or CTF participation in AI security topics. - Experience with red-teaming LLM-based products. - Familiarity with privacy-preserving ML techniques such as differential privacy. - Exposure to regulated industries with strict data handling requirements. - Open-source contributions to AI security tooling. How to Apply Would you like to know more about this opportunity? For immediate consideration, please send your resume to [email protected] or contact us at (908) 650-6699. Learn more about Bright Vision Technologies at www.bvteck.com . Equal Employment Opportunity (EEO) Statement Bright Vision Technologies (BV Teck) is committed to equal employment opportunity (EEO) for all employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, veteran status, or any other protected status as defined by applicable federal, state, or local laws. This commitment extends to all aspects of employment, including recruitment, hiring, training, compensation, promotion, transfer, leaves of absence, termination, layoffs, and recall. BV Teck expressly prohibits any form of workplace harassment or discrimination. Any improper interference with employees' ability to perform their job duties may result in disciplinary action up to and including termination of employment.