Backend Engineer

Sphinx Defense · Remote · Engineering

Posted 2026-07-06

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ABOUT THE ROLE

Sphinx is hiring a Backend Engineer to join our Space Communications team building a ground communications and data-transport  platform for US government satellites. As a Backend Engineer you will lead the development of core platform services, designing and  building technology to support the operations of a wide variety of US  Government satellites. You'll work as both an individual contributor and a lead for more junior engineers.

We’re looking for a track record of the following:

Experience working on  multi-tenant services on public cloud platforms like AWS, Azure, or GCP

Developing and consuming APIs and services as part of platform ecosystem

Developing with an emphasis on automation and security

Willingness to own a technical problem end-to-end

A habit of self-directed learning of new technologies

The ability to work well with a team

The ability to communicate clearly

You might be a good fit if:

You have 3-5+ years’ of progressively responsible software engineering experience

You have extensive experience with Python, FastAPI, postgres, AWS, Docker, Kubernetes, Terraform

You have experience architecting and building APIs and backend services

You can demonstrate in-depth knowledge of at least one commercial cloud platform and its associated services

Are comfortable working with some ambiguity and able to self-direct your work

You’ve made enough mistakes and booked enough wins to know what not to build and know what good looks like

Nice to have:

Prior experience working in space, satellite communications, or building ground systems.

LOCATION

While this role is remote, the potential for travel may occur such as client visits, company gatherings, and other project related travel as needed may be required.

COMPENSATION

This role is between $138,000 - $167,000 base salary.

Quarterly bonus structure

Equity ownership in the company

100% Premium coverage for medical, dental, and vision for you and dependents

Health Savings Accounts

Life Insurance

401k employer contribution plan

Flexible paid time off policy

Flexible work/remote work policy

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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