> Markdown version of [/jobs/ext/4720482-full-stack-software-engineer](https://www.wearedevelopers.com/jobs/ext/4720482-full-stack-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). --- # Full Stack Software Engineer - **Company:** Rainey Used Cars, Inc. - **Location:** San Francisco, CA, United States (Remote available) - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Design of User Interfaces, Human-Computer Interaction, Python (Programming Language), PostgreSQL, Software Engineering, TypeScript, Scripting, ReactJS, Fastapi, Build Management, Information Technology, Front End Software Development - **Published:** November 14, 2026 - **Apply:** https://www.careerbuilder.com/job-details/full-stack-software-engineer-san-francisco-ca--22b1e441-5cd6-4258-bab6-92ff23d5dafc ## About the Role Software Engineering, Financial Services, Leading Edge Technology, Product Development, Work From Home, Startup, User Interface/Experience (UI/UX), Application Programming Interface (API), Python Programming/Scripting Language, Amazon Web Services (AWS), We're seeking a highly skilled Full Stack Engineer with the mindset and drive of a founder to help us redefine how financial services are delivered. This role offers the chance to build innovative products from the ground up, leveraging cutting-edge technologies to create seamless, user-friendly digital experiences. This position is ideal for someone who thrives in startup environments, enjoys tackling challenges head-on, and takes pride in building high-quality, impactful solutions. Whether you're based in NYC or prefer remote work within the U.S., you'll be joining a team that values versatility, innovation, and the ability to execute at a high level., We're looking for someone with the skills and mindset to thrive in a fast-paced, entrepreneurial environment. Ideal candidates will have: * Experience in Full Stack Development: Comfortable working across front-end and back-end technologies, with proficiency in TypeScript, React, Python, Postgres, and AWS. * Startup Background: Proven success in early-stage or growth-stage startups (under 200 employees), with rapid promotions or significant project leadership experience. * API Expertise: Experience building against third-party APIs and integrating them into new or existing systems. * Strong Technical Foundation: A degree in Computer Science from a top-tier institution (e.g., Ivy League, Stanford, MIT, UC Berkeley, CMU, Waterloo). * Proven Builder: Demonstrated ability to create and launch products from scratch, both on the front end and back end., * Founder Mindset: Previous experience as a founder or founding engineer, showcasing your ability to take initiative and build something from nothing. * Side Projects: A history of personal projects that demonstrate your curiosity, ambition, and passion for building., You'll be joining a team that believes in delivering maximum value to customers through exceptional digital experiences. We're focused on creating products that are scalable, efficient, and game-changing in their impact. If you're looking to work on meaningful projects, solve complex problems, and make a difference, this is the opportunity for you. ## Description * Design and Build from Scratch: Develop new products end-to-end, including both front-end interfaces and back-end infrastructure. * API Integration: Work with third-party APIs to add features and enhance functionality seamlessly. * Full Stack Development: Dive into our stack-TypeScript, React, Python (FastAPI), Postgres, and AWS-to deliver scalable, efficient solutions. * Collaborate and Innovate: Work closely with the team to brainstorm ideas, solve problems creatively, and ensure products align with user needs. * Drive Product Quality: Prioritize building robust, reliable systems that customers love using. * Shape the Future: Contribute to the evolution of our technology and help establish best practices for scaling the team and platform.