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Founding Full Stack Software Engineer

mLabs

$160,000 - $225,000
Nov 13, 2025
Los Angeles, CA, US
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MLabs is building fully autonomous, in-house AI agent systems designed to solve critical, large-scale problems in modern web application security.

Requirements

  • Strong knowledge and deep understanding of Python, API Design, and efficient Database systems.
  • Deep understanding of AI Agents, LLMs, and relevant AI libraries.
  • Experience designing and creating complex Agentic AI Architectures.
  • Strong understanding of building scalable, micro-services and distributed systems with efficient design patterns.
  • Strong experience with version control using Git and Git-based workflows.
  • Experience leveraging AI development tools (e.g., Cursor) to significantly improve development speed and quality.
  • Experience with the post-training and serving of LLM models.

Responsibilities

  • Design and develop modular, reusable, and maintainable features primarily using Python.
  • Build and maintain complex features with a strong focus on system performance and scalability.
  • Design and create robust RESTful APIs in Python to power our proprietary AI Agents.
  • Implement and optimize systems for Agentic AI in the domain of large-scale threat detection and mitigation.
  • Analyze and identify performance bottlenecks in the backend codebase, implementing efficient optimization solutions.
  • Work with database systems, ensuring efficiency and scalability using PostgreSQL.
  • Utilize and build backend infrastructure components using technologies like Docker and Kubernetes.

Other

  • 1 - 5 years of experience as a software engineer at a notable company (e.g., big tech, YC startup).
  • Bachelor’s or Master’s degree in Computer Science or a related technical field.
  • Strong communication and collaboration skills for working effectively in a cross-functional team environment.
  • Relocation support is available for candidates moving to the Santa Monica, Los Angeles area.
  • Opportunity to join a YC-backed company at the founding stage and directly influence the product and engineering culture.