Recruits Lab

Job DescriptionJob Description Location: New York, NY Salary: $170,000-$220,000 Equity: Competitive Full-Time About the Role We are partnering with a fast-growing AI-powered fintech startup to hire a Software Engineer, Reliability & Platform. This is a high-impact role for an engineer who thrives in lean teams, has experience with scale, and wants ownership of a platform's technical foundation. You'll be responsible for infrastructure, scalability, reliability, observability, and code quality across the full stack. You'll investigate complex production issues, optimize backend services, improve iOS app performance, and strengthen cloud infrastructure. This role reports to the Head of Engineering and partners closely with leadership on platform-level improvements. Tech Stack Frontend: Swift + SwiftUI Backend: Node.js (Express) + TypeScript Database: MongoDB Cloud & Infrastructure: AWS (Elastic Beanstalk, EC2, CloudWatch, CodeDeploy) Key Responsibilities Lead deep investigations into production issues across iOS, backend services, and cloud infrastructure Perform root-cause analysis across APIs, async workflows, data models, third-party integrations, and infrastructure Optimize backend services for reliability, performance, and correctness Improve MongoDB queries, indexes, and data access patterns Strengthen AWS infrastructure, deployments, and monitoring Enhance observability using structured logging, metrics, and CloudWatch Reduce recurring bugs via improved validation, error handling, and system boundaries Improve CI/CD and release processes to reduce production risk Build internal tools to boost debugging efficiency and engineering velocity Partner with product and engineering to drive platform-level improvements Must-Have Qualifications 3-7+ years of engineering experience with exposure to scalable systems Strong debugging skills in live production environments Deep understanding of APIs, async flows, and distributed system failure modes Experience building and improving Node.js + TypeScript services Familiarity with Swift/SwiftUI codebases Solid knowledge of MongoDB performance and data modeling Experience operating AWS environments High ownership, excellent execution, and ability to thrive in a fast-moving, lean team Clear, structured communicator who is collaborative and low ego Based in or willing to relocate to New York City Nice-to-Have Fintech or payments experience Experience improving production monitoring and alerting Experience hardening deployment pipelines Engineering background from top-tier programs (Stanford, Carnegie Mellon, Georgia Tech, etc.) Why You'll Love This Role High ownership and direct collaboration with leadership Opportunity to shape the technical foundation of a fast-growing AI-driven platform Competitive salary and equity Comprehensive health insurance, 401k, unlimited PTO, and dinner provided Relocation support for exceptional candidates