To our valued Leidos candidates:

Coronavirus is on everyone's mind with the effects being felt around the world. The markets are volatile, and we're all concerned for the health and safety of our families, friends, and colleagues. Please know that we're taking all necessary measures to safeguard our employees, customers and the communities in which we live, including following all recommended best practices around social distancing.

With that in mind, in an abundance of caution, we are canceling all face to face career events, such as job fairs and open house events. In the coming days and weeks, we will be hosting career events virtually, using our online chat tools so that we may continue our hiring practice safely and securely. You can find available virtual career events at

We are using telephone meetings and online chats via Brazen to conduct interviews and hiring discussions, and we are offering options for video interviews so that you can have a virtual face to face meeting with your potential new leader. We do not conduct interviews or extend offers via text or chat based social media, such as WhatsApp or MySpace.

Leidos will never ask you to provide payment-related information at any part of the employment application process, nor will Leidos ever advance money as part of the hiring process. And Leidos will communicate with you only through emails that are generated by automated system. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to Chris Scalia, Leidos’ Senior Vice President of Talent Acquisition, at [email protected].

As a company, as a country, as a world, we have confronted challenging moments before. We are confident that, guided by our values and the strength of our community as well as the commitment we have to the important work we do each day, we will find our way through this time together. We will do this with the care and concern for one another and the common good that defines. Please keep those impacted by the virus in your thoughts.

Close Window
Join our talent network

Job #: R-00062419
Location: Windsor Mill, MD
Category: Software Development
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance: Public Trust
Referral Eligibility: Eligible
Referral Bonus Amount: $2000
Group: Health

This job posting is no longer active.

Share: mail twitter linkedin


Job Description:

 Leidos is seeking a Sr. Java Developer for Baltimore location. The Java Developer shall have experience in developing and maintaining the high-performing Java applications. Has prime accountability for detailed and robust design, code, test, and implement proposed systems. Ability to develop technical solutions, and document the solution architecture and design using standard design tools.

Day to Day Responsibilities

  • Analyze requirements.
  • Attend weekly customer status meetings and provide status.
  • Participate in database design and project design meetings.
  • Design and develop Micro Services to decompose code base into smaller independent applications using Spring Boot.
  • Secure applications using Spring Secuity JWT/OAuth 2.0 and JEE security patterns as needed by the project.
  • Design automated tests using jUnit, jMock, Cucumber and Rest Assured.
  • Design and develop back-end software applications (“apps”) using EJB 3.1, JPA 2, which serves others apps through web-service and also hosts an automated processing daemon.
  • Peer review team members code for quality and standards.   
  • Demonstrate completed functionality and assist testers with approaches to validate features and refine test cases. 
  • Create technical documentation
  • Assist with Cloud deployment.
  • Supporting the project in integration and production environments and providing quick solutions and fixes for issues in production environments.

Basic Qualifications

  • Strong experience in Java/J2EE, Spring MVC & Spring Boot   
  • Strong experience in  securing applications using Spring Security JWT/OAuth 2.0 and  JEE security patterns
  • Develop applications using Java/Spring Boot and design and develop database components using PostgreSQL DB or Oracle as needed for application. 
  • Experience identifying requirements, researching options, designing and implementing solutions at a leadership level on project work 
  • Git, BitBucket, Maven, Jenkins automation    
  • Understand and leverage common Java/J2EE architectural styles and patterns (SOA, Microservice, Layered, Clean, Event Sourcing etc.) 
  • Understand and apply quality techniques and practices (automated unit testing, TestDriven Design/Development, Java performance analysis, continuous integration) 
  • Experience using Springfox Swagger library to generate API documentation.

Preferred Qualifications

  • Strong understanding of OOPS, Twelve Factor Application Design principles, architecture styles and APIs (Web API/Rest API) 
  • Experience architecting and deploying cloud-native applications onto Amazon Web Services(AWS) or similar 
  • Design and development experience of Java batch jobs and queues using JSR 352 and Spring Batch.
  • Design and development of back-end software applications using EJB 3.1, JPA 2
  • Experience with modern development software, tools, and methodologies; Spring Framework, Spring 4, Swagger, Sonar Qube, Maven, BitBucket, WebSphere 8.5, Spring Data JPA, Spring Data JDBC, ehCache, DB2, REST, jSon, jUnit, jMock, Cucumber, Rest Assured, Log Back, Confluence, Splunk, Jira.
  • Experience working on Agile projects and understanding Agile terminology.  
  • Experience with Linux environments.     
  • Participate in daily scrum and provide updates.    
  • Excellent communication and written skills     


  • BS degree and 8 – 12 years of prior relevant experience or Masters with 6 – 10 years of prior relevant experience. May possess a Doctorate in technical domain.

External Referral Bonus:


External Referral Bonus $:


Potential for Telework:


Clearance Level Required:

Public Trust



Scheduled Weekly Hours:




Requisition Category:


Job Family:

Software Development

Pay Range:

COVID Response

Please note that effective October 1, to enter Leidos facilities in the U.S. and to attend Leidos business events outside of our facilities, employees, vendors, subcontractors, and visitors will be required to be vaccinated or maintain proof of a weekly negative COVID-19 test. In addition, we are receiving guidance from certain customers that onsite contractor personnel will need to be fully vaccinated or able to show negative COVID-19 test results to access facilities. If you are not vaccinated, please consider getting your COVID-19 vaccination as soon as possible. 

About Leidos

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, civil, and health markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $12.30 billion for the fiscal year ended January 1, 2021.  For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [email protected].

Commitment to Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

This job posting is no longer active.

Talent Community

Join our Talent Community to create a profile, enabling a streamlined application process and to help our recruiters better understand your areas of expertise and interest.

Join our Talent Community