Senior Backend Engineer

Description Lasso is the AI Security Platform built for the agentic era. As organizations race to deploy AI agents and agentic applications, Lasso provides the only continuous security loop spanning discovery, AI security posture management, automated red teaming, and runtime protection. By connecting these capabilities in a single platform, Lasso gives security teams complete visibility over their AI environment, proactive risk management, next-generation adversarial testing, and real-time threat response ensuring every agent behaves within its intended scope at every stage of its lifecycle. As a Senior Backend Developer, you will play a crucial part in designing robust backend systems that power our state-of-the-art AI-driven security solutions. You’ll own the full development cycle, implement efficient APIs and microservices and ensure high-quality code through reviews and testing. Responsibilities: Implement efficient, reliable APIs and microservices with NodeJS/Typescript (NestJS) while ensuring best practices for a production environment running on AWS. Design, develop and deploy scalable backend solutions for our AI-driven security platform. Take ownership of all aspects of the development cycle, from idea, to design, and implementation including maintenance and monitoring Participate in code reviews, provide insightful feedback to uphold code quality and adherence to coding standards. Troubleshoot and debug complex backend issues, while employing rigorous testing methodologies to ensure system reliability. Document system designs and implementation details to facilitate knowledge sharing and onboarding of new team members. Collaborate with cross-functional teams - Product, QA and Data Science. Stay updated about emerging technologies and industry trends, leveraging them to drive continuous innovation and improvement within our products. Requirements: 5+ years of hands-on experience in backend development, with proficiency in building scalable and resilient production systems. Expertise in backend technologies such as NodeJS/Typescript. Working experience with SQL and NoSQL databases (preferably document-based). Demonstrated experience with building microservices (Kubernetes/ ECS). Designing and developing RESTful APIs for a cloud-based infrastructure. Familiarity working with CI/CD technologies like Github Actions Ability to work independently and in a fast-paced environment. Excellent team player with strong communication skills. Nice to Have: Experience developing in NestJS. Experience in browser-extensions development. Familiarity with GenAI technologies.