# Senior · Staff · Principal Fullstack Engineer - Company: [Lai]() - Location: San Francisco - Remote: Yes - Team: Engineering - Employment type: Full Time - Posted: June 11, 2025 ## Job description Senior / Staff / Principal Fullstack Engineer Location: Onsite San Francisco (5 days onsite AND hybrid options) We have multiple startups interested in talent. Here is a generic summary. Instead of a perfect job description, we present talented individuals to companies and allow them to share how that talent fits in the organization. **Key Responsibilities:** * Developing and maintaining both front-end and back-end components: This includes writing code in various programming languages, designing user interfaces, and creating server-side logic. * Collaborating with cross-functional teams: Working with product managers, designers, and other engineers to define requirements, design features, and ship new products. * Ensuring the technical feasibility of UI/UX designs: Understanding how to implement designs effectively and ensure they perform well. * Writing clean, maintainable, and efficient code: Following coding standards and best practices to create code that is easy to understand, debug, and modify. * Optimizing applications for speed and scalability: Tuning code and infrastructure to ensure the application can handle a large volume of traffic and perform well. * Troubleshooting, debugging, and upgrading existing software: Identifying and resolving issues in existing software and ensuring it is kept up-to-date with the latest technologies. * Implementing secure coding practices: Protecting data and ensuring the application is resistant to vulnerabilities. * Participating in code reviews: Providing constructive feedback on the code of other developers and ensuring code quality. * Creating and maintaining software documentation: Documenting the application's architecture, code, and usage for future reference. * Managing hosting environments: Setting up and maintaining the infrastructure on which the application runs, including database administration and scaling. **Required Skills:** * **Proficiency in front-end technologies:** HTML, CSS, JavaScript, and popular frameworks like React, Angular, or Vue.js. * **Proficiency in back-end technologies:** Server-side languages like Node.js, Python, Ruby, or Java, and database technologies like MySQL, PostgreSQL, **MongoDB**, or Redis. * **Understanding of RESTful APIs and web services:** Knowledge of how to design and implement APIs for communication between different systems. * **Experience with version control systems:** Git. * **Experience with CI/CD pipelines and automated testing frameworks:** Understanding how to automate the software development lifecycle. * **Problem-solving and critical thinking skills:** The ability to analyze complex problems and develop effective solutions. * **Communication and collaboration skills:** The ability to effectively communicate with cross-functional teams and work together to achieve shared goals. *Compensation: Market range and can include equity – details can be provided after the specific client is determined.* ## Apply [Apply on Lai]() Canonical job page: