> Markdown version of [/jobs/ext/1857603-backend-software-engineer](https://www.wearedevelopers.com/jobs/ext/1857603-backend-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Software Engineer - **Company:** Rackner, Inc. - **Location:** Laurel, MD, United States (Remote available) - **Experience:** Expert - **Salary:** $240,000.0 - **Contract:** Permanent contract - **Skills:** Geographic Information Systems, Application Programming Interfaces (APIs), Artificial Intelligence, Automation of Tests, C Sharp (Programming Language), Software Quality, Code Review, Cyber Security, Continuous Integration, Distributed Systems, Python (Programming Language), PostgreSQL, OpenShift, PostGIS, RabbitMQ, Data Streaming, Systems Integration, Web Application Frameworks, Retrieval-Augmented Generation, Large Language Models, Software Security, Backend, Gitlab, Fastapi, Containerization, Gitlab-ci, Integration Tests, Kubernetes, Information Technology, Integration Frameworks, Celery, Front End Software Development, Api Design, Restful APIs, Grpc, Software Version Control, Devsecops - **Published:** July 23, 2026 - **Apply:** https://job-boards.greenhouse.io/rackner/jobs/4717774005 ## About the Role * 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. 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 other regulated software environments. * Integration of backend services with LLM, retrieval-augmented generation, or other AI-enabled components. You do not need to be the deepest expert in every technology listed. Strong backend fundamentals, credible hands-on experience, and the ability to learn within a secure delivery environment matter most. ## Description Remote Hiring Remotely in USA Mid level Remote Hiring Remotely in USA Mid level Build, test, and integrate secure backend services and APIs for DoD mission-planning. Work on REST and gRPC services, asynchronous workflows, geospatial databases, containerized deployments, CI/CD, automated tests, and vulnerability remediation while collaborating with AI/ML, frontend, and cybersecurity teams. The summary above was generated by AI, Location: Mainly remote, with onsite sprint planning in Laurel, Maryland, approximately every six weeks Clearance: U.S. citizenship and an active final DoD Secret clearance required Anticipated Start: November 2026 This opportunity is contingent upon contract award and final customer approval. Build Secure Software for a High-Impact Defense Mission Join Rackner to build secure backend services that support mission-planning and decision-support capabilities for a Department of Defense customer. You will take hands-on ownership of APIs, service integrations, data flows, and automated testing-not simply complete isolated development tickets. The role offers exposure to distributed systems, geospatial data, secure container platforms, and backend services supporting AI-enabled capabilities. What You Will Do * Design, build, test, and integrate secure backend services and APIs using Python and/or C#. * Develop REST services with FastAPI and support service-to-service communication through technologies such as gRPC. * Build reliable asynchronous workflows using Celery, RabbitMQ, or comparable messaging tools. * Develop and integrate relational and geospatial data solutions 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., As a Customer Success Manager, you will oversee repack business operations, maintain client relationships, forecast orders, and collaborate to enhance processes and client experiences. ## Related Videos - [Celery on AWS ECS - the art of background tasks & continuous deployment](https://www.wearedevelopers.com/videos/561-celery-on-aws-ecs-the-art-of-background-tasks-continuous-deployment) - [Exploring the Power of gRPC-Gateway for Writing RESTful Services](https://www.wearedevelopers.com/videos/2072-exploring-the-power-of-grpc-gateway-for-writing-restful-services) - [WeAreDevelopers LIVE - Modern DevOps for IoT Devices and More](https://www.wearedevelopers.com/videos/1805-wearedevelopers-live-modern-devops-for-iot-devices-and-more) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Enabling automated 1-click customer deployments with built-in quality and security](https://www.wearedevelopers.com/videos/83-enabling-automated-1-click-customer-deployments-with-built-in-quality-and-security) - [Boosting OpenSearch Performance: gRPC Search in Action](https://www.wearedevelopers.com/videos/1964-boosting-opensearch-performance-grpc-search-in-action) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)