Senior .NET Software Engineer

Optum is a global organisation 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 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.

About The Role

In healthcare, evolution doesn’t just happen. It takes innovation, imagination, and a passion for solving problems in new and better ways. And innovation is taking place at a lightning-fast pace every day at Optum.

As the fastest growing part of the UnitedHealth Group family of businesses, we’re expanding our team in Ireland and creating excellent opportunities for those who want greater purpose and more impact in their work. We’ll provide the investment, support, and resources to advance your career. You’ll provide the talent, ambition, and drive

As a Senior .NET Software Engineer at Optum, within the Optum Advisory Services group, you will be a key hands-on contributor within a team of talented software engineers. You will be a collaborative self-starter who is passionate about design, that can take ownership and drive results. This role will involve working with a distributed, global team with multiple stakeholders.

This role is within the StepWise Product development team within the wider Optum Advisory Services group. The StepWise software is a cloud-based platform built using .NET, SQL Server, Kafka, MongoDB and ElasticSearch. It is currently deployed to Azure and on premises.

Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our Dublin office and telecommuting from a home-based office in a hybrid work model.

Primary Responsibilities

• Design and implement product features in collaboration with business and other stakeholders
• Design reusable components, frameworks and libraries
• Work very closely with the development team, product owners and other stakeholder
• Participate in an Agile/Scrum methodology to deliver high-quality software releases through Sprints
• Troubleshoot production support issues post-deployment and come up with solutions as required
  
  

You will 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 providing development for other roles you may be interested in.

Required Qualifications: 

• Strong object-oriented programming and design skills
• Strong Software Engineering experience using the full .NET Stack and .NET Core or later in particular
• Experience supporting and working with cross-functional teams in a dynamic environment
• Strong desire to learn about new trends and technologies
• Passionate about good design, and software development in general
  
  

Preferred Qualifications

• Good knowledge of formal architectures, design patterns and best practices, including the design, development and deployment of Microservice architectures and service-oriented architectures in general
• Experience working in Azure cloud platforms (Azure, Azure API Gateway, Azure Kubernetes Services)
• Experience in automating build processes, application deployments and continuous integration systems, with tools such as: Jenkins, GitHub,
• Containerization, SonarQube
• Experience with Test Driven Development (TDD)
• Working knowledge of remote/web-based APIs (especially REST)
• Experience delivering software using an Agile/Scrum methodology
• Experience with SQL, relational and Document Databases. Ideally with SQL Server and MongoDB.
• Experience with using IIS
• Some experience with JavaScript and ASP.NET or other front-end frameworks
  
  

Please note you must currently be eligible to work and remain indefinitely without any restrictions in the country to which you are making an application. Proof will be required to support your application.

All telecommuters will be required to adhere to the UnitedHealth Group’s Telecommuter Policy.

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 marginalised 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.

Diversity creates a healthier atmosphere: Optum is an Equal Employment Opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, civil status, family status, sexual orientation, disability, religion, age, race, and membership of the Traveller community, or any other characteristic protected by law. Optum is a drug-free workplace. © 2025 Optum Services (Ireland) Limited. All rights reserved.