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Junior Software Engineer

ECS
Full Timejunior
Springfield, Virginia, USPosted April 10, 2026

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PythonJavaScriptJavaBashSQLNode.jsAWSDockerKubernetesLinuxPostgreSQLRedisGitLabJiraKafkaAgileMicroservicesAPI

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Job Description

ECS is seeking a Jr. Software Engineer to work onsite at our Springfield, VA customer site.

Job Description

You will serve as Jr. Software Engineer on a state-of-the-art ML/AI RDT&E program focusing on integrating unique solutions and quick-wins to a government client. Leveraging agile software development approaches and your experience with front-end and back-end technologies, you will lead technical efforts with participating parties across the government and tech industry to integrate multiple ML applications into a single-fused solution. Part of this responsibility includes:

  • Participating in server-side and client-side work
  • Enhancing existing applications through creative techniques that are mindful of technical resources and time constraints
  • Co-leading product direction and feature specification with community stakeholders and Program Manager.

Fundamentally, we are interested in individuals who are motivated by the mission, find meaning in solving hard-problems, and recognize operating in a hierarchically-flat environment makes for better communication, collaboration, and coordination.

  • Must be a US Citizen with the ability to obtain a TS/SCI + CI Poly security clearance
  • Bachelor's degree in Computer Science, Engineering, or related STEM field with 0-3 years of relevant experience
  • Ability develop, integrate, and troubleshoot software applications for Extract, Transform, Load (ETL) solutions in C++, Python, Java, and JavaScript
  • Strong attention to detail and high-quality code using robust design patterns
  • Experience in both SQL, NoSQL and in-memory databases (PostgreSQL, Elastic, Redis)
  • Ability to Build real-time data pipeline and event-driven architectures (Kafka Streaming)
  • Develop server-side apps and implemented end-to-end distributed tracing and system monitoring (OpenTelemetry)
  • Design and maintained resilient, high traffic microservices
  • Proficiency in Python, C++, Node.js, and JavaScript
  • Experience with Linux -- system administration and scripting in Bash, Sed, and Awk
  • Expertise in AWS cloud services (compute, storage, networking, IAM), cloud cluster, and policy management experience
  • API Integration & Development
  • Experience with containerization/orchestration technologies (e.g. Kubernetes, Docker, Helm, Rancher, OpenShift)
  • Experience with DevSecOps frameworks (e.g. GitLab, Jira)
  • Experience developing architecture/system diagrams and data flow diagrams
  • Excellent communication/presentation skills to make recommendations to stakeholders with varying degrees of technical awareness
  • Ability to quickly grasp and leverage new technologies
  • Ability to work in a fast-paced environment

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