Application Developer

Del Oro Consulting is seeking an AI Application Developer to design, build, and deliver modern AI-powered enterprise web applications. This is a hands-on engineering role for a senior engineer who can independently own technical workstreams, build scalable AI-enabled applications, make sound architectural decisions, and deliver clean, maintainable code while collaborating effectively with cross-functional teams.

Responsibilities

• Design, develop, test, and deploy enterprise applications using React, Next.js, and TypeScript.
• Build reusable, modular UI components and scalable frontend architecture.
• Integrate REST APIs, backend services, authentication, and AI/LLM capabilities.
• Develop responsive, accessible, and secure user experiences.
• Optimize application performance, scalability, and maintainability.
• Troubleshoot complex application and integration issues.
• Participate in architecture, code reviews, sprint planning, and technical design discussions.
• Mentor developers and promote engineering best practices.

Requirements

• 7+ years of software development experience with strong expertise in React, Next.js, TypeScript, and JavaScript.
• Experience building enterprise-scale web applications.
• Strong understanding of component architecture, state management, API integration, and modern frontend development.
• Experience with authentication (OAuth, OpenID Connect, JWT) and secure application development.
• Experience with testing frameworks (Jest, Playwright, Cypress, React Testing Library, or similar).
• Proficiency with Git, CI/CD, and Agile development practices.
• Excellent problem-solving, communication, and collaboration skills.

AI Experience

• Experience integrating LLMs or AI services (OpenAI, Anthropic, Azure OpenAI, AWS Bedrock, Google Vertex AI, or similar).
• Experience building AI-enabled features such as chat interfaces, prompt workflows, RAG, semantic search, or intelligent automation.
• Understanding of prompt engineering, AI API integration, and responsible AI development.

Preferred Qualifications

• Experience with Node.js, Express, NestJS, or Next.js API routes.
• Familiarity with AWS or Azure cloud environments.
• Experience with Docker, Storybook, monorepos (Nx/Turborepo), or micro-frontend architecture.
• Experience modernizing or refactoring enterprise React applications.

Benefits

• Medical, Dental, Vision
• 401(k) with a match

Pay

$62/hr (W2 contract)

Schedule

6-12 months (contract), remote

Applicants must be authorized to work for any employer in the United States. We are currently unable to sponsor or take over sponsorship of employment visas.