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Eccalon LLCPosted 5 months ago

Full Stack Developer

On-siteDetroit, Michigan, United States

Full TimeSmall

Job Summary

Design, develop, and maintain full-stack web applications from React front-ends and Next.js applications through Node.js/Python APIs and AWS-hosted data stores. Integrate LLM and AI capabilities using the Anthropic API, applying prompt engineering and retrieval-augmented generation to build intelligent, context-aware features. Build front-end architecture with reusable component libraries and translate designs into accessible, responsive code while enforcing security standards aligned with NIST 800-171 and CMMC requirements. Develop back-end services, manage relational and NoSQL data models, and conduct thorough code reviews focusing on security and maintainability. Partner with cross-functional teams to deliver features end-to-end, troubleshoot complex integration issues, and stay current on advancements in AI tooling and cloud-native development.

Required Qualifications

  • Bachelor's degree in Computer Science, or a related field (or equivalent work experience).
  • 3+ years of experience as a Full Stack Developer shipping production web applications; experience in a DoD, federal contracting, or regulated environment a plus.
  • Strong proficiency in HTML5, CSS3, JavaScript/TypeScript (ES6+), React, and Next.js; comfort building and documenting reusable component libraries.
  • Proficiency in Node.js and Python for server-side development; experience with Express.js, Nest.js, and/or Next.js API routes.
  • Hands-on experience integrating LLM APIs (Anthropic Claude, OpenAI, or similar) into production applications; demonstrated ability to write effective prompts, implement RAG pipelines, and build tool-use/agentic workflows.
  • Experience with relational databases (PostgreSQL) and NoSQL databases (DynamoDB); comfort writing and optimizing queries and managing schema migrations.
  • Solid understanding of RESTful API design, microservices architecture, and AWS services (API Gateway, Lambda, Cognito, S3, CloudFront).
  • Proficiency with Git and trunk-based development workflows; experience with GitHub or GitLab for PR-based collaboration.
  • Working knowledge of CI/CD pipelines (GitLab CI/CD) and cloud deployment practices on AWS; familiarity with security-focused DevSecOps gates.
  • Strong analytical and problem-solving skills; ability to work independently across multiple concurrent projects and communicate technical decisions clearly to non-technical stakeholders.
  • Comfort working in a regulated, compliance-aware environment; familiarity with NIST 800-171, CMMC, or FedRAMP requirements preferred.

Desired Qualifications

  • Experience building AI-powered features using RAG, vector databases (e.g., pgvector, Pinecone), or LLM orchestration frameworks (e.g., LangChain, LlamaIndex).
  • Familiarity with model context protocol (MCP) patterns and structured tool-use design for LLM-integrated applications.
  • Experience with Azure services (Azure AD, GCC High) or AWS GovCloud in a DoD or federal contracting environment.
  • Familiarity with TypeScript across both front-end and back-end (Node.js/Next.js) codebases.
  • Experience with Playwright or Cypress for end-to-end testing of web applications.
  • Background in UX/UI collaboration with Figma or similar design tooling.

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