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Senior Fullstack LLM Engineer (Go/NextJs/Reactjs)

Artech LLC

Sunnyvale, CA

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JOB DETAILS
SALARY
$50–$55 Per Hour
SKILLS
Application Programming Interface (API), Architectural Design, Artificial Intelligence (AI), Automation, Communication Skills, Computer Science, Continuous Deployment/Delivery, Continuous Integration, Data Management, Data Modeling, Data Science, Database Administration, Database Design, Database Programming, Docker, Ecosystems, Engineering, Enterprise Applications, Go Programming Language (Golang), JavaScript, PostgreSQL, Product Engineering, Product Lifecycle, Production Control, Production Systems, Query Optimization, REST (Representational State Transfer), React.js, Software Engineering, System Architecture, User Interface/Experience (UI/UX)
LOCATION
Sunnyvale, CA
POSTED
3 days ago
Request ID: 89185-1
Title: Full Stack LLM Engineer
Location : Sunnyvale, CA (3x/ week onsite)
Duration: 6+ Months
Salary Range: $50 - $55 an hour

Job Description:
We are seeking an innovative Senior Full Stack LLM Engineer to pioneer the integration of Generative AI into our core product ecosystem. This role requires a high-velocity product engineer who combines 8+ years of robust software engineering experience with a modern, AI-accelerated development mindset. You will architect scalable enterprise applications utilizing Golang on the backend, React/Next.js on the frontend, and PostgreSQL for complex data modeling. Crucially, you will drive the end-to-end delivery of advanced AI features, moving beyond basic API wrappers to build production-grade systems featuring complex context management, tool utilization, and autonomous function calling.
Key Responsibilities
  • End-to-End AI Feature Delivery: Take complete ownership of the AI product lifecycle, from initial system architecture to production deployment and monitoring.
  • Backend Architecture: Design and implement highly secure, scalable, and concurrent REST/gRPC APIs in Golang to efficiently expose LLM capabilities.
  • Frontend Engineering: Build responsive, intuitive UI/UX components using React and Next.js that present complex AI workflows simply to end-users.
  • LLM Operationalization: Integrate and manage foundation models (Anthropic Claude, OpenAI GPT-4, Google Gemini) into live software engineering pipelines.
  • Advanced AI Implementations: Architect application layers handling sophisticated LLM capabilities, including function calling, tool use, retrieval-augmented generation (RAG), and dynamic context window management.
  • Database Engineering: Design, optimize, and maintain robust PostgreSQL schemas, index strategies, and data models explicitly structured to back fast-moving, AI-driven application workflows.
Required Technical Skills
  • Core Systems: 8+ years of total software engineering experience, with strong current proficiency in Golang for backend systems.
  • Frontend Ecosystem: Deep production experience using React, Next.js, and modern state management tools.
  • AI & Automation: Proven track record of operationalizing LLMs (Claude, GPT, Gemini). Hands-on mastery of tool use, agentic workflows, and prompt engineering protocols.
  • Database Management: Advanced knowledge of PostgreSQL, including schema design, complex query optimization, and data pipelines.
  • Modern Workflows: Deep familiarity with containerization (Docker, Kubernetes) and CI/CD automation tuned for continuous AI feature rollout.
Qualifications & Soft Skills
  • Bachelor s degree in Computer Science, Data Science, or equivalent practical industry experience.
  • Strong product sense with an explicit focus on leveraging AI tools to accelerate code development and feature iteration velocity.
  • Excellent communication skills to articulate technical trade-offs between different LLM model selections and architectural designs.

Appreciate your quick response and please feel free to reach me out for any query you may have.

Thanks

About the Company

A

Artech LLC

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