Senior Full Stack Engineer – Remote Space Mission Apps

sphinxdefense; Chantilly (VA); On-site; USD 160,000 - 200,000; Full time

Job summary

Sphinx is hiring a Senior Full Stack Engineer to join our team, building the next generation of mission planning and command and control software for space communications programs. This team develops modern, resilient services to support US Government missions.

As a Senior Full Stack Engineer you will lead UI/UX development and enhance backend services, collaborating across teams and mentoring junior engineers. This remote role may involve travel, and TS/SCI eligibility is required.

Qualifications

• 5+ years of web development using modern frameworks.
• Strong experience with JavaScript/TypeScript, HTML, CSS.
• Hands-on API design and backend/frontend integration.
• Familiarity with security practices for government networks.

Responsibilities

• Develop UI/UX and robust backend services for space programs.
• Design and improve APIs for front-end and back-end integration.
• Lead features across the development lifecycle with user feedback and requirements.
• Perform code reviews and promote best practices and standards.
• Mentor junior engineers and uphold technical quality.

Skills

JavaScript

TypeScript

React

Svelte

HTML

CSS

Python

Docker

Kubernetes

API design

Web APIs

UI/UX

CesiumJS

FastAPI

SQLAlchemy

PostgREST

Security

Open architecture

Tools

Docker

Kubernetes

FastAPI

SQLAlchemy

PostgREST

CesiumJS

Python

JavaScript

Job description

Sphinx is hiring a Senior Full Stack Engineer to join our team, building the next generation of mission planning and command and control software for space communications programs. This team develops modern, resilient services to support US Government missions.

As a Senior Full Stack Engineer you will lead UI/UX development and enhance backend services, collaborating across teams and mentoring junior engineers. This remote role may involve travel, and TS/SCI eligibility is required.