Remote Senior Full Stack Engineer - Space Mission Platform

Sphinx Defense; El Segundo (CA); Remote; USD 157,000 - 190,000; Full time

Benefits offered by this job

Equity ownership

Profit sharing

401(k) contributions

Employer-covered medical, dental, and/

Job summary

Sphinx Defense is hiring a Senior Full Stack Engineer to build the next generation of mission planning and command-and-control software for space communications programs. You will lead UI/UX development and enhance backend services to support a space-vehicle mission planning platform used in critical US government missions.

The role requires strong front-end and backend capabilities, experience with modern web frameworks, containerized microservices, and a readiness to mentor junior engineers.

Qualifications

• 5+ years of progressively responsible web development experience with modern software development approaches.
• Experience with JavaScript, HTML, CSS, TypeScript, web frameworks (React, Svelte).
• Deep understanding of modern containerized microservices architectures (Docker, Kubernetes).
• Experience integrating front‑end with back‑end and ability to fix backend when needed.
• Comfortable working in ambiguous environments and guiding others.

Responsibilities

• Build performant, secure, tested web applications with automation and security.
• Design and improve APIs between front-end and back-end services.
• Lead development of core features across full lifecycle with input from users and requirements.
• Conduct thorough code reviews to maintain quality and standards.
• Translate design mockups into functional UI using modern front-end frameworks and technologies (FastAPI, SQLAlchemy, PostgREST, Svelte, React, CesiumJS).
• Mentor junior engineers and contribute to technical direction.

Skills

Frontend development

Backend development

JavaScript

TypeScript

React

Svelte

Python

APIs

Docker

Kubernetes

FastAPI

SQLAlchemy

PostgREST

CesiumJS

UI/UX

Security practices

Code reviews

Tools

Docker

Kubernetes

FastAPI

SQLAlchemy

PostgREST

Svelte

React

CesiumJS

Python

TypeScript

Job description

Sphinx Defense is hiring a Senior Full Stack Engineer to build the next generation of mission planning and command-and-control software for space communications programs. You will lead UI/UX development and enhance backend services to support a space-vehicle mission planning platform used in critical US government missions.

The role requires strong front-end and backend capabilities, experience with modern web frameworks, containerized microservices, and a readiness to mentor junior engineers.