Full Stack Developer (C#)

CACI-posted 9 days ago
Full-time • Mid Level
Hybrid • Ashburn, VA
5,001-10,000 employees
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CACI is seeking a C# Software Engineer to join our BEAGLE (Border Enforcement Applications for Government Leading-Edge Information Technology) Agile Solution Factory (ASF) Team supporting Customs and Border Protection (CBP) client located in Northern Virginia! Join this passionate team of industry-leading individuals supporting best practices in agile software development for the Department of Homeland Security (DHS). You will support the men and women charged with safeguarding the American people and enhancing the nation’s safety and security. In this hands-on role, you will be instrumental in developing high-performance, cloud-native applications for critical CBP operations. Leveraging your expertise in C# and the .NET ecosystem to build robust back-end microservices and APIs, and interacting with databases such as MongoDB, you will contribute to the entire software development lifecycle. Your work will involve building resilient systems, integrating with technologies like Kafka for data streaming, and ensuring seamless deployment within a modern cloud environment.

  • Design, develop, and implement robust, scalable, and secure backend microservices and APIs using C# and the .NET ecosystem for critical CBP applications.
  • Implement data solutions, integrating with and managing various data sources, including relational databases (e.g., PostgreSQL, Oracle) and NoSQL databases (e.g., MongoDB), as well as event streaming platforms like Kafka.
  • Develop and deploy cloud-native applications, focusing on performance, scalability, and resilience within a modern cloud environment.
  • Actively participate in all Agile Scrum ceremonies (e.g., daily stand-ups, sprint planning, backlog refinement, sprint reviews, and retrospectives) and collaborate closely with product owners, stakeholders, and other developers.
  • Promote and ensure high standards of code quality through rigorous code reviews, automated testing (unit, integration), and adherence to secure coding practices.
  • Contribute to the development and refinement of software engineering guidelines.
  • Analyze complex project-related problems, provide innovative solutions, and troubleshoot system issues across development, test, and production environments with limited oversight.
  • Contribute to the continuous improvement of existing products and the modernization of legacy backend systems, focusing on performance, maintainability, and scalability.
  • Support the creation of technical designs, architectural documentation, and other artifacts related to backend services, data flow, and integrations.
  • Act as a member of a product team, supporting teammates and collaborating to ensure collective product and team success, fostering a culture of shared responsibility.
  • Candidate must be available to work a hybrid schedule in Ashburn, VA.
  • Must be a U.S. Citizen with the ability to pass CBP background investigation, criteria includes, but not limited to: 3-year check for felony convictions 1-year check for illegal drug use 1-year check for misconduct such as theft or fraud
  • College degree (B.S.) in Computer Science, Software Engineering, Information Management Systems or a related discipline. Equivalent professional experience will be considered in lieu of degree.
  • Professional Experience: at least seven (7) years related technical experience in backend software design, development, and implementation.
  • Expert-level proficiency in C# programming language.
  • Extensive professional experience with the .NET Framework and .NET (Core) for building high-performance backend applications and microservices.
  • Demonstrated experience with message brokers and event streaming platforms, specifically Kafka.
  • Proven experience interacting with and managing data in both relational databases (e.g., PostgreSQL, Oracle) and NoSQL databases (e.g., MongoDB).
  • Experience with designing and implementing robust Microservice Architectures and RESTful APIs.
  • Experience with source code control systems and concurrent development workflows (Git preferred).
  • Knowledge of creating reusable libraries and developing complex backend solutions.
  • Understanding of all elements of the software development life cycle (SDLC), including planning, requirements management, development, configuration management, quality assurance, and release management.
  • Experience with Visual Studio, Docker.
  • Strong ability to analyze complex project-related problems and create innovative solutions.
  • Experience with C# unit testing frameworks (e.g., NUnit, xUnit, MSTest).
  • Local candidates must be available to work a hybrid schedule in Ashburn, VA.
  • Familiarity with cloud platforms (e.g., AWS, Google Cloud) and experience deploying/managing .NET applications within these environments.
  • Experience with advanced monitoring and observability tools such as Dynatrace, AppDynamics, SCOM, Prometheus, or Grafana.
  • Demonstrated experience with Infrastructure as Code (IaC) principles and tools (e.g., Terraform, CloudFormation) for automating infrastructure provisioning.
  • Experience with container orchestration platforms (e.g., Kubernetes) for deploying and managing microservices.
  • Knowledge of CI/CD pipelines and tools (e.g., Jenkins, Harness, GitLab) for automated build and deployment processes.
  • Understanding of distributed tracing and logging best practices.
  • Ability to apply estimation techniques to software development efforts.
  • Strong collaboration skills and a desire to work within a team.
  • Highly responsible, team-oriented individual with a very strong work ethic and a self-starter.
  • Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.
  • We offer competitive compensation, benefits and learning and development opportunities.
  • Our broad and competitive mix of benefits options is designed to support and protect employees and their families.
  • At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
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