Java Developer; SME

Leidos has an exciting opportunity for a Java Developer (SME) in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront of Security Engineering, Computer Network Operations, Mission Software, Analytical Methods, Signals Intelligence, and Cryptographic Key Management. At Leidos
, we offer competitive benefits such as Paid Time Off, 11 paid holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and more.

As a Java Developer
, you will provide Agile Dev Ops support to mission‑critical systems. You will design, develop, implement, and test customer tools and applications that extract, transform, and load data into an enterprise Data Lake. Working within a Dev Ops framework, you will participate in and direct major deliverables of projects through all aspects of the software development lifecycle—including scope and work estimation, architecture and design, coding, and unit testing.

• Design, develop, test, and maintain high‑performance, scalable backend microservices using Java and the Spring Framework.
• Participate in and direct software programming initiatives, shape backend architecture, mentor team members, and conduct code reviews.
• Develop and direct software system validation and testing methods using JUnit and Katalon, and use custom solutions to leverage automated deployment technologies.
• Prototype and deploy solutions within a cloud‑based platform leveraging platform services.
• Analyze proof‑of‑concept, performance, and end‑to‑end testing results, and coordinate infrastructure needs to meet customer mission requirements.
• Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners, and Scrum Masters to align user stories with customer use cases.
• Document development activities and deploy build artifacts across environments using Git Flow, Git Hub, Jenkins, and scripting (e.g., Python, Bash).
• Apply and identify software development best practices and standard operating procedures, creating innovative solutions to meet customer needs.

• Extensive experience in Agile practices, service‑oriented environments, and development practices.
• Extensive experience with Java and the Spring Framework, microservices architecture, design patterns, RESTful APIs, and integration with relational and No
  
  SQL databases.
• Experience writing software that interfaces with data technologies such as Elasticsearch, Postgres, Dynamo
  
  DB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3.
• Experience integrating and delivering within Dev Ops toolsets and practices.
• Direct experience with software testing performance tools such as JUnit and scripting languages such as Python and Bash in an Agile environment.
• Experience with commercial cloud platforms (AWS, Google Cloud, Azure) and cloud data services (S3, RDS, EFS).
• Experience using version control systems and issue/problem tracking systems.
• Master's degree with 15+ years of relevant experience, or Doctorate with 13+ years of relevant experience (additional years may substitute for a degree).
• Must hold an active TS/SCI with polygraph security clearance.

• Experience with SAFe development practices.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, 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 qualified applicants with criminal histories consistent with relevant laws.