{"schemaVersion":"jobsearcher.job.v1","id":"13f10ab2c3a5bdfd1629f621","url":"https://jobsearcher.com/jobs/13f10ab2c3a5bdfd1629f621","canonicalUrl":"https://jobsearcher.com/jobs/13f10ab2c3a5bdfd1629f621","title":"Founding Full Stack Software Engineer","description":"OverviewLocation: Los Angeles, CA (Santa Monica). Employment Type: Full-time. On-site: 5 days/week in-person.\r\nAbout The RoleOur client is building fully autonomousAI agentsthat can find, exploit, and patch complex vulnerabilities in web applications at massive scale, moving at the speed of AI-generated code. As aFounding 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.\r\nResponsibilitiesDesign and develop modular, reusable, and maintainable features primarily using Python\r\nDesign and create RESTful APIs in Python specifically to power AI Agents\r\nBuild Agentic AI systems and custom tools/protocols for cybersecurity applications\r\nDesign efficient PostgreSQL database systems and optimize backend services for performance and scalability\r\nBuild and maintain backend systems using technologies like Docker and Kubernetes, and diagnose/optimize code bottlenecks\r\nQualifications1-4 years of experience as a full-stack software engineer at a notable company (e.g., big tech, YC startup)\r\nStrong proficiency in Python and deep understanding of AI, particularly LLMs and Agentic AI Architectures\r\nExpertise in API Design and building scalable, micro-service based backend systems\r\nBachelor's or Master's degree in Computer Science or a related field\r\nNice to have: Experience post-training and serving LLM models, or experience in Cybersecurity/web vulnerabilities\r\nBenefitsSalary: $150k - $250k\r\nEquity: 0.20% - 1.20%\r\nVisa: Sponsorship available (H1B transfers and new visas)\r\nDue 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.\r\nAbout MLabsMLabs 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.\r\nApply now to be part of one of the most exciting AI startups in Los Angeles!\r\nCommitment to Equality and AccessibilityAt MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.\r\nMLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd\\'s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.#J-18808-Ljbffr","company":"Mlabs","rawCompany":"mlabs","city":"Los Angeles","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-11-04T02:54:49.638Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Founding Full Stack Software Engineer","description":"OverviewLocation: Los Angeles, CA (Santa Monica). Employment Type: Full-time. On-site: 5 days/week in-person.\r\nAbout The RoleOur client is building fully autonomousAI agentsthat can find, exploit, and patch complex vulnerabilities in web applications at massive scale, moving at the speed of AI-generated code. As aFounding 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.\r\nResponsibilitiesDesign and develop modular, reusable, and maintainable features primarily using Python\r\nDesign and create RESTful APIs in Python specifically to power AI Agents\r\nBuild Agentic AI systems and custom tools/protocols for cybersecurity applications\r\nDesign efficient PostgreSQL database systems and optimize backend services for performance and scalability\r\nBuild and maintain backend systems using technologies like Docker and Kubernetes, and diagnose/optimize code bottlenecks\r\nQualifications1-4 years of experience as a full-stack software engineer at a notable company (e.g., big tech, YC startup)\r\nStrong proficiency in Python and deep understanding of AI, particularly LLMs and Agentic AI Architectures\r\nExpertise in API Design and building scalable, micro-service based backend systems\r\nBachelor's or Master's degree in Computer Science or a related field\r\nNice to have: Experience post-training and serving LLM models, or experience in Cybersecurity/web vulnerabilities\r\nBenefitsSalary: $150k - $250k\r\nEquity: 0.20% - 1.20%\r\nVisa: Sponsorship available (H1B transfers and new visas)\r\nDue 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.\r\nAbout MLabsMLabs 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.\r\nApply now to be part of one of the most exciting AI startups in Los Angeles!\r\nCommitment to Equality and AccessibilityAt MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.\r\nMLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd\\'s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.#J-18808-Ljbffr","datePosted":"2026-11-04T02:54:49.638Z","dateModified":"2026-11-04T02:54:49.638Z","hiringOrganization":{"@type":"Organization","name":"Mlabs","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Los Angeles","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"13f10ab2c3a5bdfd1629f621"},"url":"https://jobsearcher.com/jobs/13f10ab2c3a5bdfd1629f621"}}