Sphinx Defense Logo

Sphinx Defense

Senior Full Stack Engineer

Posted One Month Ago
Be an Early Applicant
In-Office
Long Beach, CA, USA
157K-190K Annually
Senior level
In-Office
Long Beach, CA, USA
157K-190K Annually
Senior level
Build and lead development of secure, scalable mission-planning and command-and-control web applications for space communications programs. Responsibilities include developing front-end interfaces and backend services, designing APIs, translating mockups into functional UIs, conducting code reviews, improving quality and security, mentoring junior engineers, and delivering software in air-gapped or highly secure government environments.
The summary above was generated by AI

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by engineers and technologists with deep experience across commercial and defense technology, we were frustrated by the outdated and insecure technology America's service members are forced to rely on.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 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 is tasked with creating modern, resilient services and capabilities to support the U.S. Government. As our engineering organization continues to scale rapidly, you’ll also play an important role in helping establish strong technical practices, supporting a growing team, and maintaining quality and consistency as we expand.

As a Senior Full Stack Engineer, you will lead the development of intuitive, high-quality user interfaces and front-end experiences for Sphinx’s space vehicle mission planning platform, while also contributing across the full stack. We’re seeking an experienced engineer with strong front-end development expertise and a solid understanding of backend development, APIs, databases, and service integration. You’ll work as an individual contributor while also proiding technical leadership and mentorship to more junior engineers.

What you will be focusing on:

  • Applying a strong understanding of modern front-end development to build intuitive, responsive, and maintainable user experiences using technologies such as JavaScript, TypeScript, React, Angular, and/or Vue
  • Translating design mockups, user feedback, and system requirements into functional, visually appealing, and intuitive user interfaces
  • Building performant, secure, and well-tested web applications with a focus on scalability, automation, usability, and security
  • Leading the development of critical features across the full software development lifecycle, with significant influence from user feedback, system requirements, design engineering, and evolving customer needs
  • Designing, developing, and improving APIs and backend services that effectively support front-end applications and system capabilities
  • Developing and maintaining backend functionality using technologies such as Python, SQL, RESTful APIs, and containerized architectures
  • Collaborating closely with QA and other engineering disciplines to define acceptance criteria, meet functional and technical requirements, identify defects, and ensure software quality
  • Writing and maintaining automated unit, integration, and functional tests to validate functionality and ensure requirements are met
  • Conducting thorough code reviews to maintain code quality, enforce best practices, and ensure adherence to established standards
  • Advocating for improvements to product usability, quality, security, and performance that positively impact your team and end users
  • Supporting junior engineering talent through mentorship and technical guidance

You might be a good fit if you have:

  • 5+ years of progressively responsible web or software development experience using modern development approaches
  • Strong front-end development experience, with a deep understanding of modern UI development principles, component-based architecture, responsive design, performance, and usability
  • Extensive experience with JavaScript, TypeScript, HTML, CSS, and modern front-end frameworks such as React, Angular, and/or Vue
  • Experience translating designs, user needs, and requirements into intuitive, production-quality user experiences
  • Strong full-stack fundamentals with the ability to work effectively with backend systems, including Python, API development and integration, application architecture, and service-to-service communication
  • Experience working with relational databases and SQL, including querying and integrating data into web applications
  • Experience designing, consuming, and integrating APIs between front-end applications and backend services
  • Understanding of modern containerized and microservices architectures using technologies such as Docker and Kubernetes
  • Experience collaborating with QA throughout the software development lifecycle, including defining acceptance criteria, troubleshooting defects, validating functionality, and supporting release readiness
  • Demonstrated experience writing automated tests and developing software against defined user, functional, and technical requirements
  • A strong understanding of software engineering best practices, including code reviews, version control, automated testing, security, performance, and maintainability
  • Comfort working with ambiguity, self-directing your work, and providing technical guidance to other engineers
  • A demonstrated ability to own technical problems end-to-end and make sound engineering tradeoffs
  • Excellent communication skills and experience working with end users and cross-functional teams to design and build solutions that meet their needs
  • Experience developing, testing, and deploying software within air-gapped or highly secure government network environments
  • Have the ability to hold and maintain a U.S. Government TS/SCI clearance

Bonus points if you have the following: 

  • Experience designing and developing intuitive user interfaces featuring real-time, 2D/3D geospatial visualizations
  • Experience building software for mission-critical, defense, aerospace, or other highly secure environments
  • Actively hold a U.S. Government Secret Clearance 

LOCATION

This role is a hybrid role and can be based out of Colorado Springs, CO, Seal Beach, CA, or Chantilly, VA.

COMPENSATION

This role is between $157,000 - $190,000 base salary.

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.

ELIGIBILITY

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 .

EEO STATEMENT

At Sphinx Defense, we are devoted to building a team that represents a variety of backgrounds, perspectives, and skills. Sphinx Defense is committed to providing equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, and gender identity.
 
CLEARANCE ELIGIBILITY - This position requires eligibility to obtain and maintain a U.S. security clearance. For more information about U.S. Security Clearances: click here. 
 
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. Learn more about the ITAR here.  

Similar Jobs

6 Days Ago
In-Office or Remote
149K-235K Annually
Senior level
149K-235K Annually
Senior level
Cloud • Information Technology • Productivity • Security • Software • App development • Automation
Lead technical direction and implementation of large-scale product features, delivering secure, reliable, maintainable full-stack software. Collaborate with product, design, and engineering teams, address production issues, conduct code reviews, document solutions, and mentor teammates. Build and test front-end and server-side systems using modern frameworks, APIs, databases, and data-driven development practices.
Top Skills: A/B TestingAngularjsChaiCSSCypressGraphQLHTML5JavaJavascript Es6JestMochaNode.jsReactRest ApisSQLVue
7 Days Ago
In-Office
130K-240K Annually
Senior level
130K-240K Annually
Senior level
Aerospace • Artificial Intelligence • Machine Learning • Robotics • Software • Defense Technology
Build and support full-stack applications for developing, training, simulating, and evaluating autonomous systems. Develop React and TypeScript interfaces, backend services, APIs, data models, and Python workflows. Deploy and troubleshoot containerized services across local, cloud, on-premises, and air-gapped Kubernetes environments. Collaborate with users, product, design, and engineering teams to translate complex workflows into reliable, extensible applications and reusable platform capabilities.
Top Skills: Argo WorkflowsCi/CdDagsterDockerGoGrpcHelmJson SchemaKubernetesOpenapiProtocol BuffersPythonRayReactTypescriptWebsockets
8 Days Ago
In-Office
130K-240K Annually
Senior level
130K-240K Annually
Senior level
Aerospace • Artificial Intelligence • Machine Learning • Robotics • Software • Defense Technology
Build and support production full-stack applications with a frontend focus using TypeScript and React. Design intuitive interfaces for simulation, synthetic data, testing, evaluation, and autonomy workflows. Integrate APIs and backend services, improve performance and accessibility, test complete user workflows, and create reusable components and extension points. Collaborate closely with developers, product, design, and domain experts to deliver reliable applications across local, cluster, edge, and air-gapped environments.
Top Skills: DdsGoGrpcJson SchemaMavlinkMicro-FrontendsModel Context ProtocolMqttOpenapiProtocol BuffersPythonReactRestTypescriptVs Code ExtensionsWeb ComponentsWebsockets

What you need to know about the Los Angeles Tech Scene

Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.

Key Facts About Los Angeles Tech

  • Number of Tech Workers: 375,800; 5.5% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Snap, Netflix, SpaceX, Disney, Google
  • Key Industries: Artificial intelligence, adtech, media, software, game development
  • Funding Landscape: $11.6 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Strong Ventures, Fifth Wall, Upfront Ventures, Mucker Capital, Kittyhawk Ventures
  • Research Centers and Universities: California Institute of Technology, UCLA, University of Southern California, UC Irvine, Pepperdine, California Institute for Immunology and Immunotherapy, Center for Quantum Science and Engineering

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account