Senior Full Stack AI Engineer Job ID 2025-9880

Internet Brands•El Segundo, CA

12d

About The Position

We are looking for a skilled Senior Software Engineer with a strong background in Generative AI, Agentic AI, and applied software engineering. You will play a key role in building agentic AI systems, designing prompt-driven workflows, integrating tools with LLMs, and mentoring the team on the latest advancements in AI technologies.

Requirements

Technical Proficiency Strong programming fundamentals (OOP, security, performance).
Experience building scalable and modular systems using modern frameworks and tools.
Proficiency with LLMs, OpenAI/Anthropic APIs, LangChain or similar.
GenAI & Agentic AI 6+ years of experience working with GenAI and LLMs.
6+ years of experience in prompt engineering and AI agent architectures.
Familiarity with agent frameworks like CrewAI, Autogen, Cursor, or Windsurf.
Strong understanding of the Cursor Rule (intent → context → action), a principle for structuring agent behavior, and real-world experience applying it in workflows.
Solid understanding of how to construct and pass dynamic context to LLMs, including techniques like session memory and prompt templating.

Nice To Haves

Experience adapting or customizing LLMs is a plus.
Familiarity with front-end frameworks or relational databases is a plus.
Testing & DevOps Experience with Git, CI/CD workflows, and test automation.
Familiarity with DevOps tools, monitoring, and logging in production environments.
Soft Skills Excellent communication and collaboration skills.
Self-driven and eager to mentor and share knowledge.

Responsibilities

Design & Development Architect and build AI-powered tools using LLMs (e.g., OpenAI, Claude, Mistral, etc.).
Integrate and customize AI agents using frameworks like LangChain, CrewAI, or custom solutions.
Collaborate with product and research teams to translate requirements into prompt workflows and agent behaviors.
Design and implement scalable systems and infrastructure to support AI agents and workflows, using suitable tools and technologies.
Prompt Engineering & Agentic Workflows Design advanced, modular prompt chains that incorporate memory, dynamic context injection, and multi-step reasoning across agent workflows.
Experiment with and optimize agentic architectures for real-world tasks (retrieval, generation, summarization, etc.).
Front-End Integration Collaborate with UI/UX or front-end teams to integrate AI-powered features into user-facing applications as needed.
Adaptability & Learning Mindset Willingness and ability to quickly learn and adapt to new technologies, frameworks, and tools as needed.
Open to working across the stack to support the development of AI-powered solutions.
Comfortable stepping beyond core skill sets to contribute wherever needed in the AI application lifecycle.
Testing & DevOps Write unit and integration tests to ensure reliability.
Participate in code reviews, CI/CD pipelines, and deploy models/services using best practices.
Mentorship & Collaboration Upskill peers in GenAI, prompt engineering, and best practices.
Contribute to knowledge-sharing and architectural reviews across teams.
Stay updated with evolving AI ecosystems, tools, and research.

Benefits

health insurance options such as medical, dental, and vision coverage
flexible spending accounts (FSA) for medical and dependent care
short-term and long-term disability insurance
life and AD&D insurance
401(k) retirement savings plan with a company match
paid time off (PTO)
paid holidays
commuter benefits
access to our Employee Assistance Program (EAP) and well-being coaching services
voluntary benefits such as home, auto and pet insurance, and discounted legal and financial services