Job Description

Job Description

Job Description

Location: Los Angeles, CA (Santa Monica)

Employment Type: Full-time

On-site: 5 days/week in-person

Our client is building fully autonomous AI agents that can find, exploit, and patch complex vulnerabilities in web applications at massive scale, moving at the speed of AI-generated code. As a Founding Full-Stack Software Engineer (with a strong focus on backend and AI), you will be crucial in designing and developing their core agent systems and scalable web applications. You will be joining an early-stage startup with a deep technical focus on the intersection of Cybersecurity and AI.

• Design and develop modular, reusable, and maintainable features primarily using Python .
• Design and create RESTful APIs in Python specifically to power AI Agents.
• Build Agentic AI systems and custom tools/protocols for cybersecurity applications.
• Design efficient PostgreSQL database systems and optimize backend services for performance and scalability.
• Build and maintain backend systems using technologies like Docker and Kubernetes, and diagnose/optimize code bottlenecks.

Requirements

• 1-4 years of experience as a full-stack software engineer at a notable company (e.g., big tech, YC startup).
• Strong proficiency in Python and deep understanding of AI, particularly LLMs and Agentic AI Architectures .
• Expertise in API Design and building scalable, micro-service based backend systems.
• Bachelor's or Master's degree in Computer Science or a related field.
• Nice to have: Experience post-training and serving LLM models, or experience in Cybersecurity/web vulnerabilities.

Benefits

• Salary : $150k – $250k
• Equity : 0.20% – 1.20%
• Visa : Sponsorship available (H1B transfers and new visas).

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

About MLabs
MLabs is a full-stack software consultancy working with leading blockchain, AI, and tech startups worldwide. We’re supporting this client with their hiring, and you’ll be joining their team directly.

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