Senior Software Engineer - Backend

**Senior Software Engineer – Backend** - **Location**: San Francisco Bay Area, CA strongly preferred - hybrid from our San Ramon office (3 days a week); Core hours 7:00 AM – 4:00 PM PT. - **Compensation**: The US base salary range for this full-time position is $120,000 – $180,000 + up to 15% performance-based bonus. The position is eligible for performance-based equity compensation. - **Work Authorization:** Candidates must be authorized to work in the United States on a full-time basis. Visa sponsorship is not available for this position. **About ARIVE** ARIVE (arive.com) is the industry's first integrated LOS, POS, and Pricing Engine with a connected Lender Marketplace, purpose-built for independent mortgage originators. We are a dynamic high-growth company revolutionizing digital mortgage originations, and our platform seamlessly connects independent loan originators, top-tier wholesale lenders, borrowers, referral partners, credit providers, and property and settlement service providers — creating a faster, more transparent, and more affordable path to homeownership. **Position Overview** We're seeking a talented Senior Backend Engineer to design, support, and scale the services at the heart of the ARIVE platform — the engine powering loan originations for thousands of independent mortgage brokers nationwide. You'll work hands-on with Node.js, TypeScript, PostgreSQL, MongoDB, AWS, and Docker, partnering closely with product, frontend, and DevOps teams to ship high-quality, cloud-native features at startup speed. A key part of this role is production ownership — partnering with our support team to troubleshoot at-scale production issues, driving root cause to resolution, and hardening the platform so problems stay fixed. You'll also coordinate closely with our US architects and India-based engineering team for new features. This is a high-ownership role for an engineer who loves solving hard distributed-systems and data problems in a domain where reliability, performance, and security truly matter. You'll take end-to-end ownership of major workstreams alongside our most senior architects — freeing them to focus on next-generation platform initiatives. Join us and make a meaningful, sustainable impact alongside some of the industry's brightest minds. **Key Responsibilities** - **Design & Build:** Architect, develop, and maintain scalable RESTful APIs and backend services using Node.js and TypeScript, powering mission-critical loan origination workflows. - **Data Engineering**: Design efficient database schemas and optimize queries and migrations across PostgreSQL and MongoDB; implement caching strategies (e.g., Redis) for high-throughput workloads. - **Cloud & Containers**: Build, test, and deploy containerized applications with Docker; deploy and operate services on AWS (EC2, Lambda, RDS, S3, SQS). - **DevOps Collaboration**: Partner with DevOps to strengthen CI/CD pipelines, infrastructure-as-code, and observability (logging, metrics, tracing, alerting). - **Reliability & Security:** Champion system reliability, performance, and secure coding best practices — our platform handles sensitive borrower data, and we operate in a SOC 2 Type II environment where security is a first-class engineering concern. - **Production Ownership**: Partner with our Support team as an engineering point of contact for escalated production issues at scale — triage, root-cause, and resolve end-to-end, then land the permanent fix, alerting, and runbooks so issues don’t recur. Drive performance optimization across the backend and data layers. - **Global Collaboration:** Coordinate daily with our India-based engineering team — handoffs, code reviews, and design alignment — keeping core hours of 7:00 AM – 4:00 PM PT to maximize morning overlap. - **Technical Leadership**: Lead technical design sessions and code reviews, mentor mid-level engineers, and contribute to product planning and architectural roadmaps. **Things We Look For** - **Experience**…