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Get AI-powered advice on this job and more exclusive features. We're looking for a senior backend engineer who can architect and scale core systems, take full ownership of complex technical problems, and move quickly with minimal oversight. You should have startup DNA, a product mindset, and a deep understanding of system design at scale. What You'll Do: Lead the architecture, development, and optimization of our backend systems Own critical services end-to-end - from design to deployment and monitoring Mentor junior and mid-level engineers, and establish best practices Collaborate closely with product and business teams to shape the roadmap Identify performance bottlenecks and make real-time, high-impact improvements What We're Looking For: 6-10+ years of backend engineering experience (preferably in high-growth startups) Deep expertise in system architecture, microservices, and API design Strong proficiency in at least one backend language (Go, Rust, Python, or Node.js) Experience with cloud infrastructure (AWS/GCP), CI/CD, monitoring, and security Bias toward action - you can ship fast and scale smart Preferred But Not Required: Experience in fintech, infra, or real-time systems Prior experience as a tech lead or founding engineer Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Industries Technology, Information and Internet Referrals increase your chances of interviewing at Stealth AI Startup by 2x Get notified about new Back End Developer jobs in San Francisco Bay Area . San Francisco, CA $40,000.00-$100,000.00 1 month ago San Francisco, CA $120,000.00-$150,000.00 1 month ago San Francisco, CA $90,000.00-$150,000.00 2 months ago Backend Engineer - Carrier Integrations Team (Remote) San Francisco, CA $100,000.00-$150,000.00 1 day ago Software Engineer (Front End/Full Stack) San Francisco Bay Area $135,000.00-$165,000.00 3 weeks ago San Francisco, CA $100,000.00-$200,000.00 2 months ago Software Engineer, Full-Stack Opening, USA San Francisco, CA $128,000.00-$179,000.00 2 weeks ago Full Stack Software Engineer, AI Features Sunnyvale, CA $80,000.00-$120,000.00 1 month ago Senior Software Engineer, Backend - Fintech San Francisco, CA $150,000.00-$350,000.00 3 days ago Software Engineer, Java - AI Training (Freelance, Remote) We're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr