> Markdown version of [/jobs/ext/4003354-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/4003354-senior-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Raydar, Inc. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $200,000.0 - $240,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Code Review, MongoDB, Node.Js, Software Engineering, TypeScript, ReactJS, Stripe, React Native, Front End Software Development, Api Design, Web Api - **Published:** October 29, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-software-engineer-san-francisco-ca--e73dcdc6-026d-41c5-925d-51dfc4125d74 ## About the Role Software Engineering, On Site Support, High Tech Industry, Artificial Intelligence (AI), Embedded Systems, Financial Operations, Construction, Financial Systems, Blueprints, Cross-Functional, What We Are Looking For Four to nine years as a full-stack engineer on complex products, and you already hold a Senior title. Recent or current experience at a high-growth startup (Series A to D) with a strong engineering bar. Strong fundamentals across frontend UIs, backend APIs and modular infrastructure and services. Expertise in data modeling and API development. Product and user orientation, with a founder's mindset and strong written communication. Tech Stack React, React Native, Node, Express, MongoDB, TypeScript, Stripe (Issuing and Treasury). ## Description Lead the design and implementation of products and systems end to end on a lean, AI-native engineering team. Engineers here run their projects from technical blueprint to full-stack implementation and talk to customers directly. What You Will Do Lead the design and implementation of products and systems end to end. Collaborate with cross-functional teams to shape product architecture and the technical roadmap. Raise technical quality through detailed feedback on blueprints and code review. Work full stack across a TypeScript codebase, from React and React Native to Node and Express services. Build direct relationships with customers and turn their feedback into shipped product.