[Remote] Senior Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. Sphinx builds modern, scalable software to solve complex national security problems in space. The Senior Full Stack Engineer will develop mission planning and command-and-control software, leading frontend and backend development, improving APIs, mentoring junior engineers, and supporting technical practices for secure government systems.

Responsibilities

• Building performant, secure, tested web applications with a focus on automation and security
• Designing, enhancing, and improving APIs between front-end and backend software services
• Leading the development of critical features across the entire development lifecycle, with significant influence from user feedback, system requirements, design engineering, and evolving customer needs at scale
• Conducting thorough code reviews to maintain code quality, enforce best practices, and ensure code adheres to established standards
• Creating and translating design mockups into functional, visually appealing user interfaces using modern front-end frameworks (FastAPI, SQLAlchemy, PostgREST, Svelte, React, CesiumJS) and technologies like Python, Javascript, Typescript, CSS, and Kubernetes
• 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

Skills

• 5+ years of progressively responsible web development experience with modern software development approaches
• Extensive experience with JavaScript, HTML, CSS, TypeScript, web frameworks (React, Svelte), and concepts such as caching, authentication, and CSP
• Deep understanding of open architecture constructs (e.g., OMS, UCI, OCI) and modern containerized microservices architectures (Docker, Kubernetes)
• You are a well-rounded engineer comfortable wearing multiple hats, such as a web designer, UX designer, and engineer
• You possess a strong understanding of backend code with experience integrating the front-end and the backend (and the willingness to fix the backend when it's needed)
• You are comfortable working with ambiguity and can self-direct your work while guiding others and supporting project leadership activities
• You understand the importance of, and you have the desire to own a technical problem end-to-end
• You've 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
• Experience developing, testing, and deploying software within air-gapped or highly secure government network environments
• Must be eligible to obtain and maintain TS/SCI access
• 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
• Must be a US Citizen and be able to obtain and hold a U.S. Top Secret security clearance and be eligible to obtain and maintain a TS/SCI clearance
• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State
• You have experience designing and developing intuitive user interfaces featuring real time, 2D/3D geospatial visualizations
• Currently hold an active U.S. Government Secret Clearance

Benefits

• Meaningful equity ownership
• Profit sharing
• Employer 401(k) contribution
• 100% employer covered medical, dental, and vision insurance for you and your dependents
• Remote work

Company Overview