Software Engineer III (Full-Stack AI)

Newport Beach, CA (100% Onsite, Monday-Friday)
Direct Hire | W2 Only
No C2C, No 1099, No Sponsorship Available
$165,000 - $200,000 Base Salary DOE

About the Opportunity

Our client is seeking a Senior Full-Stack Software Engineer with hands-on AI experience to develop and enhance mission-critical internal applications that drive business operations. This is an opportunity to work on cutting-edge AI-powered solutions while owning projects from architecture and development through deployment and production support.

The ideal candidate enjoys building scalable software, leveraging AI technologies to solve real business challenges, mentoring other engineers, and collaborating directly with business stakeholders to deliver high-impact solutions.

Responsibilities

• Design, develop, and maintain full-stack applications using React/Next.js, Node.js/TypeScript, Python, and PostgreSQL.
• Build and implement AI-powered solutions, including LLM integrations, document intelligence, knowledge retrieval systems, and workflow automation.
• Integrate enterprise applications and third-party platforms through APIs and cloud services.
• Lead software projects from requirements gathering through deployment and ongoing support.
• Establish best practices around code quality, testing, architecture, and AI evaluation frameworks.
• Deploy and support containerized applications in cloud environments.
• Mentor junior and mid-level engineers through code reviews and technical guidance.
• Ensure secure handling of sensitive data and compliance with established security standards.

Required Qualifications

• 6+ years of professional software engineering experience building production applications.
• Strong expertise with React and/or Next.js.
• Backend development experience with Node.js/TypeScript and/or Python.
• Advanced SQL and data modeling experience with PostgreSQL.
• Experience deploying AI-powered features using modern LLMs, prompt engineering, RAG architectures, structured outputs, and evaluation methodologies.
• Cloud experience with Azure and/or AWS.
• Experience with Docker, CI/CD pipelines, monitoring, and production support.
• Proven ability to lead projects and mentor developers.
• Strong communication and documentation skills.

Preferred Qualifications

• Experience with OpenAI, Anthropic Claude, AI agents, MCP, or similar technologies.
• Experience with Supabase, pgvector, and vector search implementations.
• Experience with workflow automation platforms such as n8n.
• Experience integrating Salesforce or similar CRM platforms.
• Experience with voice AI, telephony platforms, or communication APIs.
• Experience in legal, healthcare, insurance, or other highly regulated industries.

Technical Environment

• React / Next.js
• TypeScript / Node.js
• Python
• PostgreSQL
• Azure
• Docker
• OpenAI & Anthropic APIs
• GitHub
• Enterprise API Integrations
• AI & Automation Technologies

This is an excellent opportunity for a senior engineer who wants to build AI-driven applications, influence technical strategy, and have a direct impact on business operations.