• Own a zone of the codebase: its architecture, its quality, its technical debt, and its path forward. • Write the tests and ship to production, staying accountable for what happens after. • Work with agentic tools daily, orchestrating AI to handle execution while focusing on architecture, judgment, and quality. • Collaborate with product managers to clarify requirements before development starts. • Write tests as part of building, not after. Every PR includes tests for the code it introduces.

Role Description We are looking for a seasoned full-stack engineer to build out and manage our entire web infrastructure. Our project entails implementing our pre-approved UI, constructing our API, connecting the two, and setting up our server infrastructure. This includes all associated areas such as database and architecture design. - Design and implementation of the overall web architecture - Pixel-perfect implementation of our approved user interface - Design and deployment of our database - Ensuring the entire stack is designed and built for speed and scalability - Design and construction of our GraphQL APIs - Integrating our front-end UI with the constructed APIs - Design and implementation of continuous integration and deployment Qualifications - Strong problem-solving skills - 7+ years of demonstrated history of shipping scalable applications - Proven experience with e-commerce infrastructure development is a big plus - Strong proficiency in HTML, CSS, and Typescript/JavaScript - Database design and management of both NoSQL and SQL databases - Server management and deployment for the relevant environment - Proven experience with GraphQL API development - Strong expertise in ReactJS and Express - Thorough understanding of user experience and possibly even product strategy - Experience implementing testing platforms and unit tests - Proficiency with Git - Familiarity with Google Cloud - Experience with e-commerce platforms like Shopify, etc. is a plus - You must be a world-class individual contributor to thrive at Taffi Culture at Taffi We’re highly energetic, insanely hardworking individuals who are extremely happy about the work we do. We’re diverse & distributed. We work remotely across 5 time zones, and our team is a game changer. We move fast but also find time to laugh and get to know more about each other's cultures and backgrounds. We believe in individual freedom, and with freedom comes great responsibility. Most of us wear multiple hats, sometimes even taking up responsibilities that are not in our role which needs an individual to be super curious and pretty open about the work responsibility.

Lead AI/ML Software Engineer - Remote Requisition number: 2366936 Job category: Technology Primary location: Eden Prairie, MN Overtime status: Exempt Travel: No Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health care's most complex challenges. Your contributions here have the potential to change lives. Ready to build the next breakthrough? 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. You'll enjoy the flexibility to work remotely * from anywhere within the U.S. as you take on some tough challenges. 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 Primary Responsibilities: - Own the inference and delivery of machine learning insights to multiple customers - Manage, monitor, and scale machine learning systems, delivering insights to multiple customers - Partner with cross-functional engineering teams to implement scalable, flexible pipelines that bring AI innovations into real-world products - Work with large-scale data and distributed computing frameworks to process and analyze high-volume healthcare datasets efficiently - Drive pipeline efficiency and reliability through profiling, refactoring and advanced engineering - Develop new data pipelines to improve ML model usage 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: - Bachelor of Science in computer science or related quantitative field - 7+ years of professional software engineering experience, with at least 5+ years building and operating production ML systems - Expert-level Python experience, including writing production-grade, testable, and maintainable code - Hands-on experience building and deploying APIs using FastAPI (or similar Python web frameworks) in a production environment - Solid experience deploying, managing, and scaling services in Kubernetes, including: - Containerization (Docker) - Helm or equivalent deployment tooling - Resource tuning, autoscaling, and failure recovery - Proven experience with MLOps practices, including: - Model deployment and versioning - Monitoring model performance, drift, and system health Preferred Qualifications: - Experience with AzureML, DataBricks, and Azure Kubernetes - Experience with distributed computing approaches - Expertise in ML Ops, for example, model monitoring, drift detection, and event-based model retraining - Proven solid technical communication skills - Proven ability and drive to learn independently - Proven problem-solving and analytical thinking - Proven ability to explain technical decisions to stakeholders *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 $112,700 to $193,200 annually based on full-time employment. We comply with all minimum wage laws as applicable. 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

FullStack Java Engineer Requisition number: 2363747 Job category: Technology Primary locations: Eden Prairie, MN Hartford, CT Overtime status: Exempt Travel: No Hybrid 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, and data they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits, and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together. Position Summary As a FullStack Java Engineer on our Consumer Engineering team, you will play a key role in developing, enhancing, and maintaining our robust consumer-facing software applications. You will work within a collaborative, fast-paced environment to build scalability, optimize backend performance, and create seamless integrations between frontend interfaces and backend services. This role is ideal for an engineer who is passionate about leveraging modern tools and technologies-including AI-assisted development practices and public cloud infrastructure (AWS or Azure)-to streamline daily workflows and deliver high-quality health platform solutions. If you reside near Eden Prairie, MN or Hartford, CT, you'll enjoy the flexibility of a hybrid-remote position* as you take on some tough challenges. Primary Responsibilities - Design, develop, and deploy scalable full-stack applications with a primary focus on robust Java backend services. - Write clean, well-designed, testable, and efficient code using Java and modern JavaScript frameworks. - Use enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous improvement. - Evaluate emerging trends to inform solution design and strategic innovation. - Collaborate with product managers, UX designers, and cross-functional teams to define, design, and ship new features. - Design and integrate secure, performant RESTful APIs and microservices. - Design, optimize, and maintain relational or non-relational database schemas. - Participate in code reviews to ensure code quality, performance, and adherence to security and development standards. - Maintain and enhance continuous integration and continuous deployment (CI/CD) pipelines. - Troubleshoot, debug, and resolve application issues and performance bottlenecks in production and non-production environments. 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: - Bachelor's degree OR 4+ years of equivalent software development experience - 4+ years of professional software engineering experience - 3+ years of experience with backend development using Java (Java 17 or higher) and frameworks like Spring Boot or Spring - 2+ years of experience with public cloud technologies, specifically AWS or Azure - 2+ years of experience working with database technologies (relational databases such as MySQL, PostgreSQL, or Oracle, and/or NoSQL databases) - 2+ years of experience with unit testing frameworks (e.g., JUnit, Mockito) and code quality tools like Sonar (SonarQube/SonarLint) - 2+ years of experience designing, developing, and integrating REST APIs and utilizing JSON data formats Preferred Qualifications: - Experience with frontend web development (e.g., React, Angular, Vue, or vanilla JavaScript/HTML/CSS) - Experience with reactive programming in Java, specifically using Project Reactor (e.g., Spring WebFlux) - Experience with DevOps engineering practices, including CI/CD pipelines, Infrastructure as Code (IaC), monitoring/observability tools (e.g., Dynatrace, DataDog), and version control via GitHub - Experience with application servers and runtimes, such as Tomcat, Node.js, and Express - Experience using modern AI-assisted development tools (e.g., GitHub Copilot, automated code generation tools) to optimize coding productivity and workflow efficiency - Experience with containerization tools (e.g., Docker, Kubernetes) - Experience working within an Agile/Scrum development methodology - Strong analytical and problem-solving skills with excellent communication capabilities *All Telecommuters 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 $72,800 - $130,000 annually based on full-time employment. We comply with all minimum wage laws as applicable. 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. 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. #RPO #YELLOW