Senior Full-Stack Engineer; React​/Next.js​/Python

VybeOS

VybeOS is a creative operating system built for modern brands that want their creative, brand identity, and performance data to work as one system.

We build intelligent feedback loops that connect design systems, content generation, publishing, and real-world performance data, so brands get smarter, more consistent, and more effective with every iteration.

For engineers, this means building end-to-end systems that span polished user experiences, scalable backend services, and AI-powered workflows that operate at real production scale.

We’re hiring a Senior Full-Stack Engineer to help design and build the core systems that power VybeOS. This is a hands-on role for an engineer who enjoys owning features end-to-end, from frontend UX and API design to data models and integrations.

You’ll work hybrid in Costa Mesa alongside product, design, and AI systems engineers to ship production-ready features that handle high-volume data, multi-tenant SaaS complexity, and modern API integrations.

This is a high-ownership role with meaningful influence on architecture, product direction, and engineering standards.

• Ship end-to-end features across the stack, from React UI and API contracts to database migrations
• Build and maintain backend services for brand onboarding, media ingestion, analytics, generation, and publishing
• Develop frontend experiences using Next.js, React, Type Script, and Tailwind
• Design and evolve APIs (REST / Graph
  
  QL) that power AI-driven and data-heavy workflows
• Integrate with third-party platforms (e.g., ecommerce, marketing, and content tools) and manage auth/token flows
• Model and manage data across brands, assets, campaigns, outputs, and performance metrics
• Collaborate closely with AI systems engineers to deploy and monitor LLM-powered generation pipelines
• Optimize performance across the system (latency, search speed, dashboard load times)
• Contribute to code reviews, architecture discussions, and product demos tied directly to milestones

• 5+ years of experience building production full-stack web applications
• Strong experience with React / Next.js on the frontend and Python (Django) on the backend
• Solid understanding of API design, database modeling, and migrations
• Experience working in multi-tenant SaaS environments with strict data isolation
• Familiarity with cloud infrastructure, CI/CD, and production observability
• Comfort integrating with modern APIs and external platforms
• Strong product instincts and the ability to collaborate closely with design, product, and AI teams
• Ability to move between frontend and backend work without losing quality or context

• Experience with AI/LLM integrations, vector databases, or content generation systems
• Background in marketing tech, analytics platforms, or creative tooling
• Experience at early-stage startups or on greenfield products

• True ownership:
  Build core systems that define the product from an early stage
• End-to-end impact:
  Your work directly affects UX, system performance, and customer outcomes
• Tight collaboration:
  Work directly with founders, product, design, and AI engineers
• Technical depth:
  Real problems across data modeling, performance, AI workflows, and scale
• Craft-driven culture:
  High bar for quality, speed, and thoughtful system design
• Base salary: $160,000 – $200,000 (depending on experience and scope of ownership)
• Equity: Meaningful early-stage equity with long-term upside
• Work model: Hybrid in Costa Mesa, CA
• Time off: Unlimited PTO
• Growth: Opportunity to grow into Staff / Lead ownership as the platform scales

We’re open to strong Senior and Senior+ profiles and can flex scope and compensation for exceptional candidates.

• Mid-Senior level

• Full-time

• Engineering and Information Technology
• Industries:
  Technology, Information and Internet

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