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Software Engineer II – API/Microservices Developer

Quest Diagnostics
Schaumburg, United Statesfull_timeVerifiedPosted 4 Mar 2026

About the role

Job Description


Working as part of a small, agile team to design and implement new features and technologies.  Delivering high-quality, high-performance code in an agile environment.  Using, evaluating, and learning exciting new technologies that keep our products and teams on the cutting edge.  As a key member of the team, this individual will help design, develop, and maintain complex JEE solutions with a focus on quality, performance, and resiliency. 




Responsibilities:
  • Be a part of a Scrum team working on API and microservices development using open-source technologies like Java, SpringBoot etc

  • Design APIs following RESTful API design principles and API-led architecture.

  • Lead API development and integrations, working with other developers, architects, and product owners.

  • Build consistent reusable & secure APIs and microservices following all enterprise standards and best practices.

  • Develop code that is highly scalable and has consistent performance even with high load on the application

  • Establish a strong culture of security awareness and ownership to establish the DevSecOps practices within API Dev Lifecycle

  • Responsible for debugging within a complex environment that includes multiple connected systems.

  • Responsible for operational reporting, health monitoring of the application

  • Ensure that the API based architecture enables for best-in-class user experience and response time.

  • Ensure the reusability of all the components developed.




Qualifications:
  • A minimum of 7 years’ experience in IT, including a minimum of 4 years in API and microservices development, using leading methodologies and processes.

  • 4+ years of experience in Java Backend Development and skills with Spring Framework and Springboot.

  • 4+ years’ experience working in Agile/Scrum model.

  • 4+ years’ experience working in cloud (preferably AWS) and familiar with cloud services.

  • Good knowledge of microservices architecture and integration patterns

  • Experience leveraging GenAI tools and AI first development approaches

  • Experience with integrations with databases (SQL and NoSQL), SFTP servers, REST/SOAP/GraphQL APIs and other systems and platforms. 

  • Strong skills and expertise in unit testing frameworks like Junit

  • Experience integrating with Messaging platforms like IBM MQ, Kafka

  • Experience with architecture, design, development, deployment, testing, and integration of enterprise-wide applications. 

  • Experience with a wide variety of continuous integration and source control tools.

  • Experience with designing API proxies and REST APIs using API Management platform.

  • Knowledge of API security including OIDC and OAuth2.0 concept

  • Experience designing API specifications in RAML/YAML/Swagger

  • Understand the fundamentals of DevSecOps CI/CD pipelines and ability to review troubleshoot pipeline issues and collaborate with DevOps team.

  • Ability to work collaboratively in a team environment with a strong focus on customer service and solution ownership.

Other:

  • Experience with Netflix conductor/Orkes is plus.

  • Healthcare domain experience, Enterprise, Legacy application integration experience is a plus.

  • Experience and knowledge of HL7 file formats is a plus.

  • Certification in cloud and GenAI

Education

  • Bachelor’s Degree Computer Science or equivalent (Required)

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Quest Diagnostics honors our service members and encourages veterans to apply.

While we appreciate and value our staffing partners, we do not accept unsolicited resumes from agencies. Quest will not be responsible for paying agency fees for any individual as to whom an agency has sent an unsolicited resume.

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Company

Quest Diagnostics

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