Internet Brands · 1 week ago
Senior Fullstack Engineer Agentic Infrastructure
El Segundo, CA
Full-time
Onsite
Mid, Senior Level
$100K/yr - $130K/yr
5+ years expInternet Brands is a fully integrated online media and software services company looking for a Senior Fullstack Engineer to join their Agentic AI team. The role involves building and shipping full-stack AI applications, owning the full project lifecycle, and developing foundational infrastructure for AI capabilities across the company's product ecosystem.
B2BB2CE-CommerceInternetWeb Development
Responsibilities
Build and ship full-stack AI applications: Create frontend experiences and backend systems that power real AI capabilities, iterating based on performance and user feedback
Own the full lifecycle: Take projects from idea through production deployment, ensuring quality, reliability, and scalability
Build foundational infrastructure: Develop search/retrieval services, tool execution layers (MCP servers), workflows, and intelligent agents
Establish measurement systems: Create feedback loops and performance tracking to continuously improve AI system behavior
Solve complex problems: Debug issues across the stack, identify root causes, and implement robust solutions
Qualification
Required
5+ years shipping production code (frontend and backend)
Strong programming fundamentals: We'll primarily use JavaScript, Python and PHP, but value problem-solving skills over specific language expertise
Backend development experience: Building workflows, APIs, state management, and async systems
Database knowledge: Working with both SQL and NoSQL databases
Frontend skills: Building responsive interfaces with modern frameworks (React, Vue, Angular, Svelte, etc.)
Experience applying AI/ML in production: You've worked with LLMs or ML models in real applications, not just tutorials
Ownership mindset: You identify problems, take initiative, and see things through
Pragmatic and adaptable: You choose the right tool for the job and aren't afraid to learn new technologies
Systematic problem-solver: You can debug complex systems and think through tradeoffs
Preferred
Knowledge of AI evaluation, error analysis, and building feedback loops
Experience with agentic frameworks (LangGraph, Google ADK) or Model Context Protocol (MCP)
Background in information retrieval or search systems
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)
Well-being coaching services
Voluntary benefits such as home, auto and pet insurance
Discounted legal and financial services
Company
Internet Brands
Internet Brands is an internet media company that operates online media, community, and e-commerce sites in vertical markets.
5001-10000 employees
H1B Sponsorship
Internet Brands has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (20)
2024 (45)
2023 (4)
2022 (3)
2021 (47)
2020 (17)
Funding
Current Stage
Public CompanyTotal Funding
$286.73MKey Investors
Impact Venture Partners
2014-07-08Post Ipo Equity· $6.73M
2014-06-03Acquired
2007-11-16IPO
Leadership Team
Robert Brisco
CEO
J
Joseph Rosenblum
CTO
Recent News
2025-10-16
Company data provided by crunchbase