Senior Software Engineer

Requisition number: 2389918

Job category: Technology

Primary location: Naperville, Illinois

Date posted: 10/22/2026

Overtime status: Exempt

Travel: No

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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.

Our team provides Analytic Application development and support, Business Intelligence Solutions, Custom Reporting, and Consulting for Optum Payment Integrity. We provide data analytic development services that identify overpayments or recoveries for Data Mining, Coordination of Benefits (COB), Fraud Waste Abuse and Error (FWAE), and Subrogation. This position will develop new analytics, enhance existing analytics, and maintain and improve the applications that support these analytics using bigdata tools, Azure, Pyspark, SCALA and AIML technology stack.

You'll enjoy the flexibility to telecommute\* from anywhere within the U.S. as you take on some tough challenges.

You'll enjoy the flexibility to telecommute\* from anywhere within the U.S. as you take on some tough challenges.

Primary Responsibilities:

Design, code, test, document, and maintain high-quality and scalable Big Data, Cloud solutions

Design, develop and implement analytics rules engines

Research, evaluate, and deploy new tools, frameworks, and patterns to build sustainable Big Data platform

Identify gaps and opportunities for improvement of existing solutions

Define and develop APIs for integration with various data sources in the enterprise

Analyze and define customer requirements

Assist in defining product technical architecture

Make accurate development effort estimates to assist management in project and resource planning

Create prototypes, proof-of-concepts & design of AI/ML models and code reviews

Collaborate with management, quality assurance, architecture, and other development teams

Write technical documentation and participate in production support

Keep skills up to date through ongoing self-directed training

You'll be rewarded and recognized for your performance in an environment that will challenge you and give you clear directions on what it takes to succeed in your role as well as provide development for other roles you may be interested in.

Required Qualifications:

8+ years of professional experience in Information Technology (IT)

5+ years of experience developing software applications

5+ years of experience developing applications using Scala, Python, JSON, and Web Services

3+ years of experience developing solutions hosted within public cloud providers such as Azure/AWS, etc.

2+ years of experience developing, deploying, and maintaining web APIs or RESTful services in a production environment

2+ years of experience working with distributed systems technologies such as Spark, Databricks, Hadoop, or Snowflake

2+ years of experience with MySQL and NoSQL databases

2+ years of experience in supporting Agile delivery methodologies, including backlog refinement, user story development, and sprint planning

2+ years of experience with AI/ML-driven solutions

1+ years of experience building services or full stack applications using technologies such as FastAPI, Flask, Node.js, React, Angular, TypeScript, and HTML/CSS

Preferred Qualifications:

Data analysis experience

Functional testing experience

Healthcare industry experience

Understanding of SOA (service-oriented architecture) concepts

Excellent analysis, process, problem solving and critical thinking skills

\*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 $91,700 - $163,700 annually based on full-time employment.

We comply with all minimum wage laws as applicable.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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.

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 #GREEN