Senior Full Stack Software Engineer

**About the Role** Premier Global Links LLC is seeking a **Senior Full Stack Software Engineer** to build sophisticated web applications across frontend, backend, and real\-time systems. This role is ideal for an experienced product engineer with strong **React, TypeScript, and Python** expertise who enjoys solving complex technical problems, owning architecture, and taking products from early concepts through reliable production systems. **Key Responsibilities** * Build and ship product capabilities across frontend and backend systems. * Develop scalable **React and TypeScript** applications for complex workflows. * Build backend services, APIs, and data models using Python and modern technologies. * Design application state management, synchronization, and real\-time data flows. * Build document editing, review, and collaboration experiences. * Develop features that enable users to interact with and supervise AI\-powered workflows. * Design and implement real\-time systems using technologies such as **WebSockets or SSE**. * Make architectural decisions as product usage and system complexity grow. * Partner with Product, Design, and business teams to turn concepts into polished production software. * Research unfamiliar technical problems, prototype solutions, and drive implementation independently. * Improve application performance, reliability, and maintainability. **Required Qualifications** * **4\+ years of experience** shipping production software across frontend and backend. * Deep expertise in **React and TypeScript**. * Strong experience with **Python** or comparable backend technologies. * Experience building sophisticated, data\-intensive web applications. * Strong understanding of state management, performance, synchronization, and concurrent changes. * Experience designing and building backend services, APIs, and data models. * Experience taking products or major features from **0 to 1**. * Strong software architecture and system design skills. * Bachelor's degree or higher, preferably in Computer Science or a related field. * Ability to independently research, prototype, and solve complex technical problems. **Preferred Qualifications** * Experience with **collaborative applications, document editors, or workflow platforms**. * Experience with **CRDTs, WebSockets, SSE, or other real\-time technologies**. * Experience building AI\-powered products or AI\-assisted workflows. * Understanding of asynchronous systems, including queues, events, retries, idempotency, and failure recovery. * Experience working at a venture\-backed startup or growth\-stage technology company. * Experience owning architecture as products scale in users and complexity. **Technology Environment** **TypeScript \| React \| Python \| APIs \| WebSockets \| SSE \| CRDTs \| Real\-Time Systems \| AI Applications \| Data Modeling \| Distributed Systems** **Compensation \& Benefits** * **$200,000–$250,000 annual salary**, based on experience and qualifications. * Equity opportunity. * Medical, dental, and vision benefits. * 401(k) with company match. * Equipment and office stipend. * Annual company off\-site. * Visa sponsorship may be available for qualified candidates. **Work Arrangement** **Hybrid – San Francisco, CA** This position is primarily based in **San Francisco**with a hybrid work arrangement. Collaboration with a distributed team across San Francisco and New York is expected. **Equal Opportunity Employer** Premier Global Links LLC is an Equal Opportunity Employer. Qualified applicants are considered based on their skills, experience, education, and qualifications.