Founding Full Stack Software EngineerAmadeus Search • Los Angeles, CA, United States

Founding Full Stack Software Engineer

Amadeus Search • Los Angeles, CA, United States

30+ days ago

Job type

Full-time

Job description

Role : Founding Full Stack Software Engineer

Location : On-site, Los Angeles, CA (Santa Monica)

Compensation : $160k-$220k + 0.2-0.4% equity

Work Policy : Full-time, fully on-site, long-hour YC-style culture; relocation support available (no visa sponsorship)

About the Company

A stealth-mode cybersecurity + AI startup backed by top accelerators, building autonomous AI agents that discover, exploit, and patch vulnerabilities in web applications at scale. These agents leverage principles of human penetration testers, enabling enterprises to keep pace with the rapid increase in AI-generated code. Small, focused founding team with backgrounds in AI and security.

Responsibilities

Architect and develop scalable full-stack systems with emphasis on backend performance.
Design and build APIs in Python to power AI agent frameworks.
Create backend services using RESTful APIs / GraphQL, with PostgreSQL as the primary database.
Contribute to AI-driven cybersecurity agent systems.
Optimize backend systems (Docker, Kubernetes, distributed architecture).
Collaborate closely with founders and cross-functional team in a fast-paced, high-intensity environment.

Qualifications

Strong backend / full-stack engineering experience, ideally in early-stage startup settings.

Expertise in Python, API design, PostgreSQL , and distributed backend architecture.

Familiarity with LLMs, AI agents, and AI libraries .

Experience with CI / CD pipelines, Git-based workflows, and Agile tools.

Strong systems thinking and ability to build scalable, reusable backend components.

Bonus : Cybersecurity knowledge (vulnerabilities, security tools) and experience serving LLMs in production.

Tech Stack

Backend : Python, PostgreSQL, Docker, Kubernetes

Frontend : Next.js, React, JavaScript

AI / ML : LLMs, AI agent frameworks, AI dev tools

Why Join

Ground-floor opportunity at a YC-backed cybersecurity + AI company.

Significant ownership (equity) with high upside.

Work directly on agentic AI architectures that tackle one of the fastest-growing problems in software security.

Build alongside a small, driven founding team in Los Angeles.

Create a job alert for this search

Founding Software Engineer • Los Angeles, CA, United States

Related jobs

Senior Full Stack Software Engineer

HiveWatch • El Segundo, CA, United States

Full-time

HiveWatch is a tech-forward, inclusive organization fostering the evolution of the physical security industry.We are a diverse team of forward thinkers who empower each other to find creative and c...Show more

Last updated: 30+ days ago • Promoted

Full Stack Engineer

CADRE • Los Angeles, CA, United States

Full-time

Do you love to build? Are you one of the most ambitious people you know? If so, you'll be right at home at Unwrap.We are seeking a full stack software engineer who has a specific interest in workin...Show more

Last updated: 30+ days ago • Promoted

Senior Full Stack Software Engineer

Tillster, Inc. • Los Angeles, CA, US

Full-time +1

Quick Apply

Senior Full-Stack Software Engineer Job Summary : Contribute to the design, development, and support of scalable, integrated business systems across web, cloud, and enterprise platforms.You’ll...Show more

Last updated: 30+ days ago

Software Engineer - Full-Stack

Nominal • Los Angeles, CA, United States

Permanent

Nominal is building the software infrastructure powering the world's most advanced hardware systems - from spacecraft and autonomous vehicles to next-generation industrial machines.Our platform ing...Show more

Last updated: 19 days ago • Promoted

Founding Full Stack Engineer

CADRE • Los Angeles, CA, United States

Full-time

Dialogue AI is building the future of customer research.Our platform brings together AI agents to help create studies, conduct interviews, and extract meaningful insights enabling teams to under...Show more

Last updated: 30+ days ago • Promoted

Software Engineer, Full Stack

CoSM • Los Angeles, CA, United States

Full-time

Cosm is a global technology company that brings experiences to life in immersive environments.We help our partners create spaces and content that blur the lines of real and virtual across three pri...Show more

Last updated: 21 days ago • Promoted

Full Stack Engineer

Eleven Recruiting • El Segundo, CA, United States

Full-time

We are a specialized technology staffing agency supporting professional and financial services companies.Why do we stand out in technology staffing? We listen and act as advisors for our candidates...Show more

Last updated: 30+ days ago • Promoted

Full Stack Software Engineer, AI Features

Skylight • Los Angeles, CA, United States

Full-time

At Skylight, we thrive on innovation and creativity, building products that bring families closer together.As a Full Stack Engineer within our new AI products team, you'll be at the forefront of de...Show more

Last updated: 17 days ago • Promoted

Staff Software Engineer - Full Stack

Kixie • Santa Monica, California, United States, 90401

Full-time

Staff Software Engineer - Full Stack.At Kixie, were on a mission to empower sales professionals with a powerful, all-in-one sales engagement platform. Our solution seamlessly integrates with CRMs to...Show more

Last updated: 30+ days ago

Full-Stack Software Engineer

Neros Technologies • El Segundo, CA, United States

Full-time

Neros is a defense technology company rebuilding America's drone industrial base.We design and manufacture high-performance unmanned systems that are tested in combat, iterated at startup speed, an...Show more

Last updated: 30+ days ago • Promoted

Full Stack Software Engineer

Stirling PDF • Los Angeles, CA, United States

Full-time

Join Stirling PDF, an innovative and rapidly growing startup dedicated to creating self-hosted, open-source PDF editing software. We’re on a mission to challenge the high costs and restrictive pract...Show more

Last updated: 3 hours ago • Promoted • New!

Lead Software Engineer (Full Stack Enterprise)

FreeForm • Los Angeles, CA, United States

Full-time

LEAD SOFTWARE ENGINEER (FULL STACK ENTERPRISE).Freeform is deploying software-defined, autonomous metal 3D printing factories around the world, bringing the scalability of software to physical prod...Show more

Last updated: 21 days ago • Promoted

Software Engineer, Full Stack

Sift Science • El Segundo, CA, United States

Permanent

At Sift, we're redefining how modern machines are built, tested, and operated.Our platform gives engineers real-time observability over high-frequency telemetry-eliminating bottlenecks and enabling...Show more

Last updated: 30+ days ago • Promoted

Full Stack Software Engineer

Iconic Hearts Holdings, Inc • Culver City, CA, United States

Full-time

Company : Iconic Hearts Holdings, Inc.Sendit is part of Iconic Hearts Holdings, Inc's portfolio - a rapidly growing social media app with over 20 million active users per month.Our mission is to cre...Show more

Last updated: 30+ days ago • Promoted

Full Stack Software Engineer - Top Secret Clearance

SpaceX • Hawthorne, CA, United States

Permanent

Full Stack Software Engineer - Top Secret Clearance.SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are ...Show more

Last updated: 21 days ago • Promoted

Full Stack Engineer

Rootshell Enterprise Technologies • El Segundo, CA, United States

Full-time

Rootshell Enterprise Technologies Inc.IT Consulting services in the US.We are actively seeking Full Stack Engineer for one of our client in El Seguendo, CA. Please share your resume with current loc...Show more

Last updated: 18 days ago • Promoted

Full Stack Engineer | Los Angeles

Fincons US • Los Angeles, CA, United States

Full-time

FinconsUS is a leading IT consulting company specializing in innovative solutions for various industries.We are seeking a highly skilled full-stack Java / Node. This position requires expertise in Jav...Show more

Last updated: 30+ days ago • Promoted

Senior Full-Stack Software Engineer

Aevum, Inc. • Long Beach, CA, United States

Full-time

Senior Full-Stack Software Engineer.Aevum is an American technology company that designs, develops, and provides autonomous air, space, and package transportation technologies.The company focuses o...Show more

Last updated: 30+ days ago • Promoted