Senior Full-Stack Software Engineer – Applied AI
Job in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-07-20
Listing for:
Jobtailor
Full Time
position Listed on 2026-07-20
Job specializations:
-
Software Development
Backend Developer, Full Stack Developer, AI Engineer (Applied/Software)
Job Description & How to Apply Below
- Contribute to all phases of product development, from ideation and prototyping to implementation and iteration
- Design reliable, scalable backend services to support AI-powered features in production
- Build and evolve scalable backend services and APIs that aggregate, enrich, and serve large, complex real estate datasets
- Develop and refine frontend and backend product experiences that make sophisticated data intuitive, trustworthy, and actionable
- Evaluate and benchmark LLM performance across latency, cost, accuracy, and hallucination rates
- Own technical decisions for systems that sit at the center of Mainstay’s SaaS platform and directly influence investor decision‑making
- Partner closely with product managers, designers, data science, and data engineering to translate business needs into durable technical solutions
- Improve system reliability, performance, and maintainability as the platform scales
- Modernize and automate legacy real estate workflows by replacing manual analysis with software-driven insights
- Mentor other engineers through code reviews, technical guidance, and shared ownership of team standards
- 5+ years of experience building and shipping production‑grade software in fast‑paced and early‑stage start up
- Proven, hands‑on experience developing and deploying production‑ready AI features
- Highly proficient with AI‑first thinking and software development best practices
- Strong full‑stack engineering skills with a backend‑first orientation
- Deep experience designing, building, and operating scalable backend systems, ideally in Python
- Solid frontend experience with React or similar modern frameworks
- Experience working with data‑heavy, analytics‑driven, or workflow‑oriented systems
- Strong technical judgment and the ability to balance speed, correctness, and long‑term maintainability
- Clear, thoughtful communication skills for a remote, highly collaborative team
- A proactive, ownership‑driven approach to ambiguous problems
Position Requirements
10+ Years
work experience
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