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Leidos

Senior Systems Integrator Engineer

Leidos

. Lead integration activities across applications, infrastructure, data, network, security, and mission-system components .

Posted 10/15/2026full-timeUnited StatesSenior💰 $107,900 - $195,050 per yearWebsite

Tech Stack

Tools & technologies
AnsibleAWSCloudDistributed SystemsDockerElasticSearchJenkinsKafkaKubernetesMicroservicesMySQLPostgresSQLTerraformVault

About the role

Key responsibilities & impact
  • Lead integration activities across applications, infrastructure, data, network, security, and mission-system components
  • Develop and maintain system integration strategies, plans, procedures, and technical documentation
  • Analyze system and software requirements to identify integration dependencies, interfaces, constraints, and risks
  • Define and document system interfaces and integration requirements
  • Coordinate integration activities across multiple Agile engineering teams
  • Lead technical integration working sessions and troubleshoot complex cross-system issues
  • Develop integration approaches for APIs, microservices, databases, messaging systems, and external interfaces
  • Coordinate environments and technical dependencies required for integration and testing
  • Support end-to-end system integration and validation activities
  • Partner with Test Engineering to develop integration and end-to-end test strategies
  • Investigate defects and integration failures and lead root-cause analysis
  • Analyze logs, application behavior, interfaces, data flows, and system configurations to isolate issues
  • Coordinate resolution of integration defects across engineering teams
  • Support deployment, release, and operational readiness activities
  • Evaluate technical impacts associated with application changes, infrastructure changes, and new capabilities
  • Identify integration risks and dependencies early and communicate them to engineering and program leadership
  • Maintain integration schedules, technical dependencies, and readiness criteria
  • Support Agile ceremonies, PI Planning, backlog refinement, sprint planning, and technical demonstrations
  • Participate in architecture and technical design reviews
  • Provide technical guidance and mentorship to less-experienced systems and integration engineers
  • Collaborate with customer and mission stakeholders to understand operational integration requirements
  • Support continuous improvement of integration processes, tooling, automation, and engineering practices
  • Support the Chinook Program for an Intelligence Community customer and an application serving national security objectives

Requirements

What you’ll need
  • Active Top Secret/SCI clearance with the ability to successfully pass a Polygraph examination
  • US citizenship is required per contract
  • Bachelor's degree in Computer Science, Software Engineering, or related field and 8-12 years of prior relevant experience, or Master’s with 6-10 years of prior relevant experience; may possess a Doctorate in technical domain
  • Equivalent experience may be considered in lieu of degree
  • Demonstrated experience with systems integration, software integration, or complex enterprise application environments
  • Experience analyzing system interfaces, dependencies, data flows, and integration requirements
  • Experience troubleshooting complex technical issues across multiple systems or applications
  • Experience with REST APIs, web services, databases, messaging, and distributed systems
  • Experience working in Agile/Scrum environments
  • Experience with requirements management and technical documentation
  • Experience collaborating across software, infrastructure, security, test, and systems engineering teams
  • Preferred: experience supporting Intelligence Community (IC) or DoD mission systems
  • Preferred: experience with geospatial, intelligence, or other mission-specific data and workflows
  • Preferred: experience with AWS and cloud environments
  • Preferred: experience with Docker and Kubernetes
  • Preferred: experience with CI/CD and DevSecOps environments
  • Preferred: experience with Terraform, Ansible, or CloudFormation
  • Preferred: experience with GitLab CI/CD, Jenkins, SonarQube, Nexus, Vault, or Keycloak
  • Preferred: experience with PostgreSQL, MySQL, SQL Server, OpenSearch/Elasticsearch, or similar technologies
  • Preferred: experience with Kafka or other messaging/event streaming technologies
  • Preferred: experience with GitLab, Jenkins, Jira, Confluence, or similar tools
  • Preferred: experience with automated integration testing
  • Preferred: experience with system-of-systems integration