Job Requirements
Remote
Secret Polygraph not specified
Mid Level Career (5+ yrs experience)
Salary not specified
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Job Description
Build Secure Backend Software for a High-Impact Defense Mission
Join Rackner to build secure backend services supporting mission-planning and decision-support capabilities for a Department of Defense customer.
This is a mainly remote position with onsite sprint-planning sessions in Laurel, Maryland, approximately once every six weeks. Additional onsite participation may occasionally be needed for technical reviews.
This position is contingent upon contract award and final customer approval, with an anticipated start in November 2026.
What You Will Do
Design, build, test, and integrate secure backend services and APIs.
Develop services using Python and/or C#.
Build REST APIs with FastAPI and support service-to-service communication through technologies such as gRPC.
Develop asynchronous and distributed workflows using Celery, RabbitMQ, or comparable messaging tools.
Design and integrate relational and geospatial data using PostgreSQL and PostGIS.
Containerize and deploy services through OpenShift or Kubernetes.
Write unit and integration tests that strengthen software quality and delivery confidence.
Work within GitLab-based development and CI/CD workflows.
Investigate defects, security findings, failed integrations, and service issues.
Participate in code reviews, technical reviews, and vulnerability-remediation efforts.
Produce clear software designs, workflow descriptions, and technical documentation.
Collaborate with frontend, AI/ML, cybersecurity, DevSecOps, and customer engineering teams.
What You Bring
At least four years of professional software-development experience.
A bachelor’s degree in computer science or a related field.
Hands-on experience building backend services, APIs, or distributed applications.
Experience with Python, C#, or a comparable backend language.
Understanding of API design, data flows, error handling, automated testing, and source control.
Familiarity with secure software-development lifecycle practices.
Ability to clearly explain the systems you personally built, the decisions you made, and how your work was tested and delivered.
U.S. citizenship and an active, fully adjudicated DoD Secret clearance.
Experience That Will Help You Stand Out
FastAPI or another Python web framework.
RabbitMQ, Celery, gRPC, or similar messaging and service-integration tools.
PostgreSQL, PostGIS, geospatial data, or mapping applications.
OpenShift, Kubernetes, GitLab CI/CD, or secure container delivery.
Defense, mission-planning, decision-support, or another regulated software environment.
Integration of backend services with LLM, retrieval-augmented generation, or other AI-enabled capabilities.
Why Rackner
At Rackner, you will build technology that supports critical defense and public-sector missions.
This role offers hands-on ownership across backend engineering, secure delivery, distributed services, automated testing, and collaboration with software, AI/ML, cloud, and cybersecurity teams.
Rackner has delivered more than $30 million in recent federal awards. We are looking for an engineer who can help turn complex mission needs into secure, dependable software.
Benefits & Professional Growth
Competitive compensation
Company-supported certifications
401(k) with 100% company match up to 6%
Medical, dental, vision, life, and disability coverage
Paid time off and company holidays
Remote-work support and home-office equipment plan
Fitness and wellness reimbursement
Weekly pay schedule
Professional-development and growth opportunities
If you want to build secure backend services that support an important defense mission, we would like to hear from you.
Join Rackner to build secure backend services supporting mission-planning and decision-support capabilities for a Department of Defense customer.
This is a mainly remote position with onsite sprint-planning sessions in Laurel, Maryland, approximately once every six weeks. Additional onsite participation may occasionally be needed for technical reviews.
This position is contingent upon contract award and final customer approval, with an anticipated start in November 2026.
What You Will Do
Design, build, test, and integrate secure backend services and APIs.
Develop services using Python and/or C#.
Build REST APIs with FastAPI and support service-to-service communication through technologies such as gRPC.
Develop asynchronous and distributed workflows using Celery, RabbitMQ, or comparable messaging tools.
Design and integrate relational and geospatial data using PostgreSQL and PostGIS.
Containerize and deploy services through OpenShift or Kubernetes.
Write unit and integration tests that strengthen software quality and delivery confidence.
Work within GitLab-based development and CI/CD workflows.
Investigate defects, security findings, failed integrations, and service issues.
Participate in code reviews, technical reviews, and vulnerability-remediation efforts.
Produce clear software designs, workflow descriptions, and technical documentation.
Collaborate with frontend, AI/ML, cybersecurity, DevSecOps, and customer engineering teams.
What You Bring
At least four years of professional software-development experience.
A bachelor’s degree in computer science or a related field.
Hands-on experience building backend services, APIs, or distributed applications.
Experience with Python, C#, or a comparable backend language.
Understanding of API design, data flows, error handling, automated testing, and source control.
Familiarity with secure software-development lifecycle practices.
Ability to clearly explain the systems you personally built, the decisions you made, and how your work was tested and delivered.
U.S. citizenship and an active, fully adjudicated DoD Secret clearance.
Experience That Will Help You Stand Out
FastAPI or another Python web framework.
RabbitMQ, Celery, gRPC, or similar messaging and service-integration tools.
PostgreSQL, PostGIS, geospatial data, or mapping applications.
OpenShift, Kubernetes, GitLab CI/CD, or secure container delivery.
Defense, mission-planning, decision-support, or another regulated software environment.
Integration of backend services with LLM, retrieval-augmented generation, or other AI-enabled capabilities.
Why Rackner
At Rackner, you will build technology that supports critical defense and public-sector missions.
This role offers hands-on ownership across backend engineering, secure delivery, distributed services, automated testing, and collaboration with software, AI/ML, cloud, and cybersecurity teams.
Rackner has delivered more than $30 million in recent federal awards. We are looking for an engineer who can help turn complex mission needs into secure, dependable software.
Benefits & Professional Growth
Competitive compensation
Company-supported certifications
401(k) with 100% company match up to 6%
Medical, dental, vision, life, and disability coverage
Paid time off and company holidays
Remote-work support and home-office equipment plan
Fitness and wellness reimbursement
Weekly pay schedule
Professional-development and growth opportunities
If you want to build secure backend services that support an important defense mission, we would like to hear from you.
group id: 91109049
