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More: Impact Discover a role that empowers some of life’s most important healthcare decisions.

Principal Software Engineer

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Category Technology Location Schaumburg, Illinois Job function Information Technology Job family Software Engineering
Shift Day Employee type Regular Full-Time Work mode Hybrid

The principle engineer works as part of an agile team to design and implement new features and technologies. The goal is to use, evaluate, and learn exciting new technologies that keep our products and teams on the cutting edge.

Please note this position is based in Chicago, IL.  The work requirement is 3 days in the office and 2 days can be work from home.   

Core Capabilities:

Communication & Collaboration:Listens to the ideas and concerns of others and devSaveelops an understanding of how their ideas relate to others - and acts to address concerns. Demonstrates ability to effectively implement solutions within a diverse technical team of SIs, contractors, and internal teams.

Risk Management: Identifies risks and develops risk management plans/processes and successfully implements/operates them.


Agile Ways of Working: Has a deep personal motivation to develop new efficient, effective, and valuable ways to accomplish team tasks.

Member Centricity: Develops and communicates member journeys across the organization to improve business outcomes across market segments.
Promotes a culture of quality customer service across the organization.

Problem Solving: Demonstrates the ability to look at problems from different points of view and tries to find solutions that meet the needs of those outside of the team including staff and members. 

Leadership Capabilities:

Coaching & Mentoring: Create a team environment where members provide each other with constructive feedback regularly and in challenging situations.

Driving Performance: Set clear expectations for delivery, standards and outcomes and provide timely feedback to team members and assign tasks to support individual development plans.

Motivating & Inspiring: Build the confidence of others to succeed either in their own capacity, or in the future success of their team, unit or organization; provide guidance, support and incentives to motivate others.

Change Management: Advise on and influence change management; support and participate in the driving the team and steering towards success as change.


  • Hands-on technical lead, leading the team and contributing to the architecture, design, development, testing, monitoring and support activities.
  • Be a part of a Scrum team working on API and microservices development using open-source technologies like Java, SpringBoot etc
  • Coach, mentor and support developers on the team to unblock issues and deliver on all stories on time and with quality.
  • Work with other stakeholders within the organization to build the right architecture and design for all applications and services.
  • Establish a strong culture of security awareness and ownership to establish the DevSecOps practices within API Dev Lifecycle
  • Develop standards and best practices for building APIs and microservices with highest quality, security, and performance.
  • Build common capabilities and reusable components that will be used across all services.
  • 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.

  • A minimum of 15 years’ experience in IT, including a minimum of 8 years in API and microservices development, using leading methodologies and processes.
  • Minimum of 5 years of experience working as a technical lead, leading a scrum team of 5+ developers
  • 8+ years of experience in Java Backend Development and skills with Spring Framework, Springboot and gradle.
  • Experience building frameworks and process automation for simplifying developer experience
  • 6+ years’ experience working in Agile/Scrum model. Should be able to play the Scrum Master role for the team when required
  • 5+ years’ experience working in cloud (preferably AWS) and familiar with cloud services.
  • Experience building applications and services from scratch and setting up standards & best practices for APIs and microservices.
  • Strong 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 and NATS
  • 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 and NATS/Synadia is highly desirable.
  • Healthcare domain experience, Enterprise, Legacy application integration experience is a plus.
  • Experience and knowledge on HL7 file formats is a plus.


Equal Opportunity Employer: Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.

“I love working here because Quest has been my second family and second home. I've experienced a wholesome work environment, and good management.”

- Quest Employee

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Quest Diagnostics is an equal employment opportunity employer. Our policy is to recruit, hire and promote qualified individuals without regard to race, color, religion, sex, age, national origin, disability, veteran status, sexual orientation, gender identity, or any any other legally protected status . Quest Diagnostics observes minimum age requirements established by federal, state and/or local laws, and will ask an applicant for verification when deemed necessary.

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