Senior Software Engineer, Full-Stack (Web Core)

Greenlight is looking for a Senior Software Engineer, Full-Stack for our Web Core team. This is an exceptional, high-impact opportunity to help bring Greenlight's core product functionality to the web. As part of a horizontal platform team, you'll build and evolve the foundational systems that power web experiences across the organization, partnering with product and engineering teams to enable scalable, high-quality development. In addition to contributing across our frontend and backend services, you'll provide technical leadership, mentor engineers, and help drive engineering excellence across the platform. This role reports to a Director, Engineering.

Responsibilities

Lead the design and implementation of groundbreaking web experiences, translating mobile features to the web with world-class UX.; Drive technical strategy, define engineering standards/best practices, mentor engineers, and establish the technical vision for the web platform.; Manage technical debt, champion code quality, and lead architectural evolution.; Design, modify, and develop backend services that power web products, ensuring systems scale and championing system reliability, performance, and observability.

Requirements

BS in Computer Science; 7+ years of software development experience with a track record of technical leadership; Deep expertise in React/Next.js/Remix; Strong experience building REST APIs and backend services with Node.js/TypeScript; Experience with modern build tools, testing, and CI/CD.

Nice to have

Experience with A/B testing/experimentation and modern MarTech tools (Segment, Optimizely, Mixpanel, Amplitude).

Benefits

Discretionary performance bonus; Equity rewards; Medical, dental, vision, and HSA match; Paid life insurance, AD&D, and disability benefits; Traditional 401k with company match and Roth IRA; Unlimited PTO; Paid company holidays and pop-up bonus holidays; Professional development stipend; Mental health resources; 1:1 financial planners; Fertility healthcare; 100% paid parental and caregiving leave, plus cleaning service and meals during your leave; Flexible WFH, both remote and in-office opportunities; Fully stocked kitchen, catered lunches, and occasional in-office happy hours; Employee resource groups