Demo

Full-Stack Engineer

Spear AI
Washington, DC Full Time
POSTED ON 4/8/2026
AVAILABLE BEFORE 5/7/2026

Spear AI is seeking a versatile software developer who works across both the client-side and server-side of web applications, with the skills to build complete, end-to-end solutions. This comprehensive role involves implementing responsive user interfaces, implementing business logic, building and optimizing databases, creating API integrations, and ensuring cross-platform compatibility.


Beyond technical expertise, successful Full Stack Engineers demonstrate strong problem-solving abilities, effective communication with technical and non-technical team members, time management skills, and adaptability to learn new technologies. This role also provides opportunities for career advancement toward specialized positions, technical leadership, or engineering management.


Spear AI servers the national security industry and deploys software to cloud environments that span unclassified, Secret, and Top Secret regions. We also deploy software to the edge in some of the harshest conditions, including US nuclear submarines.


The ideal candidate has experience with both front-end and back-end development, with a strong comfort in relational databases. Candidates with a GitHub (or other open-source) profile stand out because we can check their work for attention to detail and code quality.

\n


Front-end (Essential)
  • Tailwind CSS
  • TypeScript
  • React / Next.js
  • Experience with modern build tools (Vite, Webpack)
  • Server-side rendering (SSR)
  • React Error boundaries and suspense
  • Familiar with RESTful APIs (GraphQL is a plus)
  • State management (React Context, Zustand, Redux, etc.)


Back-end (Essential)
  • Node.js
  • Python / mypy
  • Authentication and authorization (OAuth, JWT, etc.)
  • Validation (Zod, Valibot, etc.)
  • Logging and monitoring (Sentry, etc.)
  • Unit testing and integration testing (Vitest, etc.)


Database Management
  • Relational databases (PostgreSQL, MySQL, etc.)
  • Data modeling
  • Schema migrations
  • Advanced SQL concepts (window functions, CTEs, materialized views, stored procedures, and triggers)
  • Performance optimization (indexing, EXPLAIN ANALYZE, etc.)
  • ETL and data pipelines
  • Experience with Kafka, RedPanda, or other streaming platforms is a plus


DevOps
  • CI/CD (GitHub Actions, GitLab Pipelines, etc.)
  • Docker
  • Docker Compose (Kubernetes is a plus)
  • Infrastructure as Code (Pulumi, Terraform, etc.)
  • Semantic Versioning
  • Deployment strategies
  • Feature flags
  • Linting / formatting (ESLint, Prettier, etc.)
  • AWS or other cloud providers


\n

You must be willing to receive a Secret or Top Secret/SCI security clearance. This will be at no expense to you. For resources on what goes into a security background investigation and what disqualifies people reference the CIA requirements.

Salary.com Estimation for Full-Stack Engineer in Washington, DC
$93,307 to $120,075
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Spear AI

  • Spear AI Washington, DC
  • Mission Engineers (MEs) are at the tip of the Spear leading customer engagements and understanding the pain points and issues within current technology. Yo... more
  • 9 Days Ago

  • Spear AI Washington, DC
  • We're seeking a skilled Machine Learning Engineer to build and deploy production ML systems for the next-generation data management and artificial intellig... more
  • 9 Days Ago

  • Spear AI Washington, DC
  • We’re seeking a skilled Infrastructure Engineer to build the next-generation data management and artificial intelligence platform for maritime domain aware... more
  • 12 Days Ago

  • Spear AI Washington, DC
  • We’re seeking a skilled Infrastructure Engineer to build the next-generation data management and artificial intelligence platform for maritime domain aware... more
  • 12 Days Ago


Not the job you're looking for? Here are some other Full-Stack Engineer jobs in the Washington, DC area that may be a better fit.

  • Promise Washington, DC
  • Company Overview Promise modernizes how government agencies and utilities support people in financial difficulty. We build technology that makes it simple ... more
  • 8 Days Ago

  • KMM Technologies, Inc. Reston, VA
  • Position: RQ00069, Senior Software Engineer. BIG DATA ECOSYSTEM AND AI EXPERIENCE REQUIRED*** Location: Rockville, MD or Tysons, VA. Must be able to come o... more
  • 8 Days Ago

AI Assistant is available now!

Feel free to start your new journey!