Role Description As a Lead Software Engineer within our OptumRX and Optum Financial Services Technology team, you will lead a talented team of engineers in designing, developing, and deploying highly reliable, distributed microservices and APIs. In this role, you will collaborate closely with product owners and technical leaders to shape our technical roadmap, drive the modernization of our pharmacy benefits and financial platforms, and leverage cutting-edge event-streaming technology with Kafka. You will also have the opportunity to drive engineering excellence by integrating approved AI productivity tools and modern Agile development practices to streamline development workflows and optimize efficiency. This is a highly collaborative role where you will mentor junior developers, solve complex technical challenges, and champion operational reliability in a fast-paced environment. If you are located in New Jersey, you will have the flexibility to work remotely* as you take on some tough challenges. - Oversee the full software development lifecycle for solutions built on NodeJS, Java, Spring Boot, and Kafka, managing complex, scalable projects from inception to production. - Lead an engineering team in the design, development, coding, testing, deployment, and debugging of distributed applications and microservices. - Collaborate directly with product owners to understand business requirements, develop strategies, and create technical roadmaps aligned with business objectives. - Instill best practices for software development, code quality, documentation, and delivery of high-quality work within tight timelines using Agile and Test-Driven Development (TDD). - Translate business requirements into effective technical solutions; recommend alternative approaches to meet aggressive deadlines with optimal results. - Champion operational excellence, including building, deploying, monitoring, and supporting production services with a focus on reliability, scalability, and leading incident response efforts. - Guide and mentor junior developers, fostering career growth and technical skill development within your team. - Use enterprise-approved AI tools to streamline workflows, automate tasks, improve engineering efficiency, and drive continuous improvement. - Evaluate emerging trends to inform solution design and strategic innovation. Qualifications - Undergraduate degree or equivalent experience. - 6+ years of hands-on experience in software engineering, with deep expertise in NodeJS, TypeScript, Java, Spring Boot, and event-driven architectures using Kafka. - Experience with cloud-native development (AWS, Azure, or GCP), containerization (Docker), and orchestration (Kubernetes). - Experience managing and resolving production incidents, including root cause analysis and postmortem documentation, combined with familiarity in using approved AI-powered tools to enhance productivity. - Proven experience leading engineering teams, including mentoring, technical guidance, and team development. - Solid background in designing, developing, and deploying secured RESTful and GraphQL APIs, along with relational databases and data modeling. - Solid understanding of CI/CD pipelines, test automation, and modern DevOps practices. - Familiarity with design and architectural patterns including Domain-Driven Design and Agile methodologies. - Demonstrated ability to prioritize work, manage multiple projects, and communicate effectively with product teams and other engineering leads. Preferred Qualifications - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. - Proven solid problem-solving and analytical skills, with the ability to think critically and propose innovative technical solutions. - Proven excellent communication and collaboration skills, with the ability to work effectively with both technical and non-technical stakeholders. - Demonstrated passion for continuous learning and staying up-to-date with the latest advancements in cloud technologies, modern software practices, and AI productivity tools. Requirements - *All employees working remotely will be required to adhere to UnitedHealth Group’s Telecommuter Policy. Benefits - 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). - The salary for this role will range from $112,700 - $193,200 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.

Role Description The Domain Area operateM2C is responsible for the operation and further development of the new Meter2Cash system landscape within the group’s network division. Within the overall context of the Domain Area, the Domain Data & Analytics develops all reporting relevant to the Meter2Cash processes in order to provide various stakeholders (e.g., internal group clients, external market partners, regulatory authorities, etc.) with information and insights. The assignment is focused on the development, enhancement, and operation of data models in SAP BW/4HANA. The functional context is within the area of market communication and master data reporting. - Translation of provided business requirements in the context of case clarification analyses into a technical solution design, taking into account the development standards defined by the client. - Technical definition, documentation, and presentation (for approval) of data models in the Business Warehouse in line with the defined business requirements. - Implementation of data models for BDO market communication & master data reporting based on relevant source systems (SAP MaCo Cloud, SAP S/4 Utilities, CSV data sources), including the creation of technical objects and coding in SAP BW/4HANA using ABAP and SQL. - Implementation aligned with the prioritization of the Product Owner, based on planned top initiatives, harmonized business requirements, and quality assurance measures to ensure operational stability. - Clarifications with stakeholders, including identification of logical inconsistencies and execution of data cleansing activities. Qualifications - Technologies: SAP BW/4HANA, S/4 Utilities, HANA SQL, ABAP, SAC - Source systems: SAP MaCo Cloud, SAP S/4 Utilities, CSV data sources - Documentation & standards: Fully provided by the client - Working model: Remote - Language: German (mandatory for business communication) Requirements - Professional Skills: - VISL (Level 4) - INAN (Level 5) - DTAN (Level 4) - DESN (Level 5) - BUAN (Level 4) - CNSL (Level 5) - Soft Skills: - Strong communication skills - High degree of personal responsibility and ownership - Persuasiveness - Experience as a developer in an agile project environment - Team player mindset - Reliable and accountable in both words and actions Benefits - Medical insurance: Your health, and your family's, is our top priority. You're fully covered. - Holiday flat in Valencia: Dreaming of sunny days in Spain? Our company flat is ready for your next getaway. - Gifts for special occasions: We love celebrating you. Expect thoughtful surprises on Easter, Women's Day, Father's Day, and more. - Anniversary gifts: Your 1st, 5th, and 10th work anniversaries are milestones worth celebrating, and we mark each of them with a special gift. - Team-building events: We value connection beyond work, offering engaging team experiences in great locations to inspire collaboration and fun. - End of year celebrations: We wrap up each year with a special celebration, filled with joy, laughter, and unforgettable moments. - Day off on your birthday: Your special day is yours to enjoy, no work required. - Community and social initiatives: We bring people together through activities like Bring Your Kids to the Office Day, donation drives, tree planting, sporting events, decorating the Christmas tree with your colleagues, celebrating new office openings, Principal33's anniversary, and more. - Access to Udemy: Growth matters, so you get unlimited access to thousands of courses. Develop your skills anytime, anywhere. - German language courses: Dedicated courses to help you build your German skills, supporting both personal and professional growth. - Personal and professional growth: We support your development through masterclasses with experienced trainers, and we're open to investing in courses and training that help you grow. Company Description At principal33, we are driven by innovation, collaboration, and a commitment to excellence. Our mission is to deliver impactful solutions that empower our clients and inspire our teams. We are dedicated to cultivating a work environment that attracts top talent, drives innovation, and values diverse perspectives. Join us and become part of an organization that prioritizes growth, creativity, and meaningful impact every day.

Role Description We're looking for Mid-Level and Senior Front-end Engineers to join a fully remote team. This opportunity is open to candidates based in the European Union. You'll work on modern, large-scale web applications using a cutting-edge frontend ecosystem and micro-frontend architecture. As part of a collaborative engineering team, you'll help build scalable, high-performance solutions while contributing to the evolution of modern development practices and user experiences. What You Will Be Doing - Develop and maintain modern frontend applications using React 19 and TypeScript (strict mode). - Build scalable micro-frontends using Module Federation. - Implement routing with TanStack Router. - Collaborate within a Turbo monorepo powered by Node.js 24 and pnpm workspaces. - Build and maintain reusable UI components using Tailwind CSS, a shared Design System, and Storybook. - Create type-safe APIs and validation using Zod. - Write unit and integration tests with Vitest. - Develop end-to-end, accessibility, and visual regression tests using Playwright. - Contribute to backend utilities and platform services with Fastify when needed. - Ensure code quality using Biome for linting and formatting. - Support application observability through OpenTelemetry and Prometheus. Qualifications - Mid-level or Senior experience as a Front-end Engineer. - Strong proficiency in TypeScript, including strict mode. - Solid commercial experience with React. - Experience building scalable frontend applications and component-based architectures. - Familiarity with modern build tools such as Rsbuild/Rspack or similar bundlers. - Experience with testing frameworks such as Vitest and Playwright. - Understanding of modern CSS practices and experience with Tailwind CSS. - Experience working with Git and collaborative development workflows. - Strong problem-solving and communication skills. - EU citizenship or legal authorization to work remotely within the European Union. Requirements - Experience with Module Federation and micro-frontend architectures (nice to have). - Experience with Fastify (nice to have). - Familiarity with Storybook, Zod, OpenTelemetry, and Prometheus (nice to have). - Experience working in monorepos using Turbo and pnpm workspaces (nice to have). Benefits - Salary ranges (for employees in Lithuania only): from 4500 € gross (it is flexible and depends on your experience). - Personalized benefits packages that cater to your unique passions. - Top Talent Collaboration: Join award-winning teams from different countries. - Diverse, Challenging Projects: Break free from the ordinary with dynamic, stimulating work. - Epic Team Events: Join us for summer and winter parties and online events. - Learning & Development Opportunities: That new tech certificate is just around the corner. - Special Celebrations: We love a good shindig for birthdays and project milestones.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer Overview Be part of the Operations & Technology Fraud Products team developing new capabilities for MasterCard's Decision Management Platform, which serves as the core for multiple business solutions to combat fraud and validate cardholder identity. Our patented Java-based platform processes billions of transactions per month in tens of milliseconds using a multi-tiered, message-oriented approach for high performance and availability.• Would you like to develop industry leading solutions for fighting fraud?• Are you motivated by speeding business solutions to market?• Do you want to innovate, using cutting edge technologies on challenging business problems? Role This role involves working with a team of talented developers to develop high performance, high volume solutions. You will be responsible for:• Lead day to day systems development and maintenance activities of the team to meet service level agreements (SLAs) and create solutions with high level of innovation, cost effectiveness, high quality and faster time to market.• Accountable for full systems development life cycle including creating high quality requirements documents, use-cases, design and other technical artifacts including but not limited to detailed test strategy/test design, performance benchmarking, release rollout and deployment plans, contingency/back-out plans, feasibility study, cost and time analysis and detailed estimates.• Collaborate with Architects, fellow Leads, Developers, Business Analysts & Product Owners in Dublin & other Mastercard locations.• Develop high-quality, secure, scalable and maintainable Java-based software solutions. • Apply best practices for automated testing, automated code quality, automated delivery & automated monitoring.• Mentor the senior & junior engineers on your team through sound technical advice, UML documentation & code reviews.• Assist with troubleshooting production incidents & channel learnings back into the development stream to mitigate future customer impact.• Participate in PoCs (Proof of Concept) and help the Department with selection of Vendor Solutions, Technologies, Methodologies and Frameworks.• Collaborate with vendor resources for support of products.• Conduct brownbag sessions on new and upcoming technologies, methodologies and application appropriate frameworks.• Actively look for opportunities to enhance standards and improve process efficiency.• Perform Quality Inspections and Walkthroughs throughout the SDLC including Requirements Review, Design Review, Code Review and Security Review to ensure compliance with Mastercard and PCI standards.• Work as part of a co-located Agile SCRUM team. All About You• Must be high-energy, detail-oriented, proactive and have the ability to function under pressure in an independent environment. • Must provide the necessary skills to have a high degree of initiative and self-motivation to drive results. • Possesses strong communication skills -- both verbal and written - and strong relationship, collaborative skills and organizational skills. • Willingness and ability to learn and take on challenging opportunities and to work as a member of matrix based diverse and geographically distributed project team.• Deep knowledge of software development processes including agile processes and test driven development.• Experience with the design and development of complex, multi-tier software solutions.• Essential Skills required:• A wide breadth and depth of technical experience using Java/JEE• Strong Linux and shell scripting• Oracle & PL/SQL and advanced SQL scripting• Extreme Performance or NoSQL Data Storage such as GemFire Object Grid, Terracotta, or Cassandra• Spring Framework (including Spring Boot)• J2EE Web Application/Web Services (e.g. with JBoss and/or Apache Tomcat)• Web Services - REST/XML/JSON• Desirable Skills:• Messaging - MQ and JMS• Business rules execution systems (e.g. IBM Operational Decision Manager (ODM - formerly ILOG) or JBoss Drools)• Experience integrating vendor and open source products into an overall system• Experience working with containerised environments, such as Kubernetes/OpenShift/CloudFoundry• Experience with integration frameworks such as Apache Camel/Spring Integration• Experience with monitoring service performance Experience with visual design tools (Visio, Confluence Gliffy, etc.) Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: - Abide by Mastercard's security policies and practices; - Ensure the confidentiality and integrity of the information being accessed; - Report any suspected information security violation or breach, and - Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.