Senior Software Engineer - React

Optum India; Dadri; On-site; INR 1,500,000 - 3,500,000; Full time

Job summary

Optum India is seeking a skilled full-stack developer to design and maintain scalable microservices on Azure and AWS, with emphasis on React.js UI and FastAPI REST APIs. You will optimize cloud costs, implement CI/CD, and mentor junior engineers. Experience with LangChain and Azure OpenAI is highly valued.

Join a global health-tech leader delivering innovative solutions. This role offers growth in cloud-native architectures, AI-powered experiences, and collaborative Agile teams across platforms.

Qualifications

• Bachelor's degree in computer science, engineering, or related field.
• 4+ years of full-stack development with React.js and API experience.
• Experience with Azure Cloud and REST APIs (FastAPI).
• Familiarity with AI/GenAI tools and cloud AI services is a plus.

Responsibilities

• Design, implement and maintain scalable microservices on Azure and AWS.
• Integrate CI/CD, automate tests, and optimize cloud costs.
• Lead code reviews and mentor junior developers.
• Identify and fix production issues and improve performance.

Skills

React.js

FastAPI REST APIs

Azure Cloud

LangChain/RAG/AI Agents

Azure OpenAI services

Docker

CI/CD

Snowflake

MySQL

Agile development

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

CI/CD pipelines

Snowflake

MySQL

LangChain

Job description

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.

Caring. Connecting. Growing together.

Primary Responsibilities

• Design, implement and maintain highly scalable microservices within all phases of the Software Development Life Cycle (SDLC) on Microsoft Azure and AWS
• Establish, refine and integrate CI/ CD, feature testing automation, performance testing as needed. Good understanding of Infrastructure as code
• Identify production and non-production application issues
• Identify opportunities to fine-tune and optimize applications, public cloud infrastructure cost, best cloud practices, scalability, and high availability
• Provide technical leadership, design and code review, serve as a mentor to junior developers
• Comply with the terms and conditions of the employment contract, company policies and procedures, and any and all directives (such as, but not limited to, transfer and/or re-assignment to different work locations, change in teams and/or work shifts, policies in regards to flexibility of work benefits and/or work environment, alternative work arrangements, and other decisions that may arise due to the changing business environment). The Company may adopt, vary or rescind these policies and directives in its absolute discretion and without any limitation (implied or otherwise) on its ability to do so

Required Qualifications

• Bachelor's degree in computer science, Engineering, Information Systems, or related field
• 4+ years of experience in full-stack application development with solid expertise in React.js for building modern, responsive, and scalable user interfaces
• Hands-on experience developing and integrating REST APIs using FastAPI, with a solid understanding of API design, security, and performance optimization
• Proven experience working with Azure Cloud, including integration of Azure OpenAI services to build AI-powered applications and intelligent user experiences
• Experience with LangChain, Retrieval Augmented Generation (RAG), AI Agents, and Azure AI Search is highly desirable for developing advanced Generative AI solutions
• Familiarity with Docker, CI/CD pipelines, and modern DevOps practices is preferred to support automated deployments and scalable application delivery
• Proven solid database skills with experience in Snowflake and MySQL, including data modeling, query optimization, and integration with enterprise applications
• Proven ability to collaborate with cross-functional teams to design, develop, test, and deploy cloud-native solutions following Agile development practices

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.