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Senior Developer

Leidos

$104,650 - $189,175
Oct 1, 2025
VA, US
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Leidos is looking to support and modernize cloud applications for the ATF contract, including modernization of currently migrated mission critical applications and production support hosted in AWS GovCloud.

Requirements

  • Strong knowledge of programming languages, development methodologies, and best practices
  • Strong understanding of object-oriented programming and enterprise application architecture
  • Hands-on expertise in building responsive front-end applications using Angular, TypeScript, and RxJS
  • Experience developing back-end services and APIs using Node.js with Express
  • Deep understanding of RESTful and SOAP-based web services
  • In-depth knowledge of relational databases, database design data modeling with SQL and NoSQL
  • Experience designing and managing batch jobs using tools like Spring Batch, Apache Camel, or custom schedulers

Responsibilities

  • Participate in design, development, testing, and release of key functionality for large scale custom software projects to meet customer requirements
  • Develop core functionality for existing systems, create and execute unit tests, and assist with deployment of new software to the user community.
  • Analyze, diagnose, and resolve software bugs utilizing approved procedures following software best practices
  • Work prioritized tasks from implementation through test and deployment during each Agile Sprint period.
  • Collaborate with other software developers, QA analysts, operations staff, supervisors, and clients
  • Provide team leads with technical expertise and level of effort of a task, updates and risk management approaches to ensure development activities proceed as needed.
  • Design and maintain GitLab CI/CD pipelines for automated build, test, and deployment

Other

  • US Citizenship required
  • Currently have and maintain a Public Trust security clearance (which includes three years of immediate residency in the US)
  • Excellent written/verbal communication
  • Ability to collaborate with stakeholders and ensure deliverables meet agency expectations
  • Bachelors’ degree and 8-12 years or a Master’s degree with 6-8 years of experience developing and supporting software applications