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Sphinx Defense
Development 48d ago

Senior Backend Engineer

Sphinx Defense
United StatesUnited States
Full-time
$160,000 - $185,000
Senior-Level

Job Description

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About Sphinx

Sphinx builds software to solve complex national security problems in Space. Founded by engineers and technologists with deep experience across commercial and defense technology, we were frustrated by the outdated and insecure technology America's service members are forced to rely on. We're here to do better.

We’re focused on building modern, scalable products with an emphasis on using open source technologies. Expect talented, motivated, and interesting colleagues who emphasize collaboration, transparency, and individual responsibility.

About the Role

Sphinx is hiring a Senior Backend Engineer to join our team, building the next generation of mission planning and command and control software for space communications programs. This team is charged with creating modern, resilient services and capabilities to service the US Government for the next decade and beyond.

As a Senior Backend Engineer, you will play a key role in building a cutting-edge communications platform for US government satellites. Sphinx is hiring a Senior Backend Engineer to join our Space Communications team, building a ground communications and data-transport platform for US government satellites. As a Senior Backend Engineer, you will lead the development of core platform services and design and build technology to support the operations of various US government satellites. You'll work as both an individual contributor and a lead for more junior engineers.

You will have an outsized role in determining what we build and how we work. You'll work as both an individual contributor and a lead for more junior engineers.

What you will be focusing on:

  • Building multi-tenant services on public cloud platforms like AWS
  • Building, architecting, and consuming APIs and backend services as part of the platform ecosystem with an emphasis on automation, testing, and security
  • Advocating for improvements to product quality, security, and performance that have a particular impact on your team and others
  • Supporting junior engineering talent with mentorship or technical guidance
  • Interacting with customers and partners to help them integrate with our services
  • Scale the services and solve interesting Space Communication challenges

You might be a good fit if you have:

  • 5+ years of progressively responsible software engineering experience
  • Have extensive experience with Python, FastAPI, Postgres, AWS, Docker, Kubernetes, and Terraform*
  • Demonstrable in-depth knowledge of at least one commercial cloud platform and its associated services
  • Led the architecture, development, and building of backend services and APIs to ensure performance, security, and reliability
  • An ability to successfully own technical problems end-to-end
  • Made enough mistakes and booked enough wins to know what not to build and what good looks like
  • Excellent communication skills, working with end-users to design and build solutions to their needs, a habit of self-directed learning of new technologies, and the ability to learn quickly and adapt to a fast-paced environment

Benefits

Compensation includes competitive salary, meaningful equity ownership, profit sharing, employer 401(k) contribution, and 100% employer covered medical, dental, and vision insurance for you and your dependents.

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Sphinx Defense

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Sphinx Defense is the premier, enterprise-grade space ground systems innovator, military satellite communications architect, and national security DevSecOps powerhouse engineered to operate as the definitive, secure data routing and telemetry layer for the U.S. Department of Defense, intelligence agencies, and commercial aerospace firms globally. The company completely eliminates the severe systemic friction of modern orbital operations—where tactical operators and ground stations face fragmented command-and-control interfaces, brittle data transit pipelines, insecure legacy software components, and manual telemetry collection bottlenecks—by deploying an open, high-concurrency cloud-native communications infrastructure. Moving far beyond traditional, slow-moving defense contractor models or rigid hardware-dependent frameworks, Sphinx Defense natively unifies secure satellite command and control (C2) interfaces, automated cross-domain ground data transport, standardized data-delivery protocol layers, and scalable cloud-to-edge network management hubs into a single high-availability mission ecosystem. Trusted across high-stakes intelligence commands and federal space agencies—including extensive work under the Missile Defense Agency and contributions to global command standards—the platform empowers mission-critical teams to orchestrate autonomous satellite tasking, accelerate sensor-to-shooter data velocity, and safeguard orbit-to-terrestrial pipelines with production-hardened precision. Under the hood, its sophisticated technical practice natively orchestrates advanced Kubernetes resource clusters, military-grade Zero Trust security architectures, secure Infrastructure as Code (IaC) deployment layers via Terraform and Ansible, and automated DevSecOps pipelines built for air-gapped or high-classification environments. What sets Sphinx Defense apart is its uncompromising dedication to replacing ancient, fragmented federal infrastructure with cutting-edge commercial software momentum; by bridging the gap between performance-intensive, web-scale cloud architectures and unyielding national security guidelines, the firm remains the absolute, category-defining cornerstone of modern satellite communication and space superiority software infrastructure.

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