Java Developer (SME)

Leidos LLC; Brookmont (MD); On-site; USD 154,000 - 278,000; Full time

Benefits offered by this job

Paid time off

11 paid holidays

401K with 6% match

Flexible schedules

Discounted stock purchase

Technical upskilling

Education & training support

Parental paid leave

Job summary

Leidos LLC is seeking a Java Developer (SME) to provide Agile DevOps support for mission critical systems. You will design, implement and test data tooling for an enterprise Data Lake, using Java and Spring in a scalable backend microservices environment.

You will contribute to architecture decisions, mentor peers, and ensure alignment with customer use cases within a cloud-based platform. A strong background in AWS and data technologies is required.

Qualifications

• Experience in Agile development practices and SAFe is preferred.
• Extensive Java and Spring Framework experience, with RESTful API design.
• Proficient with data technologies like Elasticsearch, Postgres, DynamoDB, Kafka, AWS services.
• Experience with DevOps toolchains and automated deployment.
• Proficient in Python and Bash scripting; strong testing experience.

Responsibilities

• Design, develop, test and maintain high-performance backend microservices in Java/Spring.
• Lead software programming initiatives, mentor team members, conduct code reviews.
• Develop system validation and testing methods using JUnit and Katalon; utilize automated deployment solutions.
• Develop and deploy cloud-based solutions leveraging platform services.
• Coordinate infrastructure needs tied to software delivery for mission support.
• Support SAFe-aligned agile lifecycle with Product Owners and Scrum Masters.

Skills

Java

Spring Framework

Microservices

REST APIs

Databases

Elasticsearch

DynamoDB

Kafka

AWS services

Education

Master’s degree with 15+ years

Doctorate with 13+ years

Tools

GitHub

Jenkins

Python

Bash

AWS

GCP

Azure

S3

RDS

Job description

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 in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

At Leidos, we offer competitive benefits, including 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 much more.

Join us and make a difference in National Security!

Job Summary

As a Java Developer you will to provide Agile DevOps support to mission critical systems. The candidate will provide technical expertise and support in the design, development, implementation and testing of the customer tools and applications in support of Extracting, Transforming and Loading data into an enterprise Data Lake.

Primary Responsibilities

• Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs.
• Participates in and direct software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews.
• Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies
• Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services.
• Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs
• Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases
• Document and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash)
• Apply and identify software development best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers.

Basic Qualifications

• Extensive use and experience in common Agile practices, service‑oriented environments, and development practices
• Extensive experience with Java and the Spring Framework, microservices architecture and design patterns, implementing RESTful APIs, and integrating with relational and NoSQL databases.
• Extensive experience with writing software that interfaces with data technologies like Elasticsearch, Postgres, DynamoDB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3.
• Extensive experience integrating with and delivering within DevOps toolsets/practices
• Direct experience utilizing software testing performance tools, such as Junit and scripting languages, such as Python, and Bash while working in an Agile development environment
• Extensive experience with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS)
• Extensive experience using version control systems and issue/problem tracking systems
• Master’s degree with 15+ years of prior relevant experience or Doctorate with 13+ years of relevant experience.
• Additional years of experience may be substituted in lieu of a degree.
• To be considered must have an active TS/SCI with polygraph security clearance.

Preferred Qualifications

• Experience with SAFe development practices

Commitment and 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.

Pay and Benefits

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 Leidos.com 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 [e-mail].

Pay Range: Pay Range $154,050.00 - $278,475.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Company Overview

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Original Posting: April 27, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.