Software Engineer

Our client is building a next-generation financial services platform, combining premium banking, rewards, and account services in one ecosystem. They're operating at serious scale ($150M+ ARR, $4B+ annual transaction volume) and remain fully profitable, with the growth trajectory of a company still early in its story. This is a chance to join a small team of at a genuine inflection point, owning the backend systems (payments, rewards, account services, and partner integrations) that power a fast-growing, high-value customer base. What you'll do Design and build backend services, APIs, and data models handling high-volume, high-stakes financial transactions Own full features end-to-end, from concept to launch and beyond, across payments, rewards, account services, and partner integrations Build systems where correctness matters, keeping money and data accurate through concurrency, retries, and failures Shape technical architecture as the platform scales Partner with frontend and mobile engineers on polished, full-stack features Raise the bar on reliability, performance, and observability across backend systems What you bring 5+ years building backend or full-stack systems in production Strong experience with a backend language Skill designing APIs, data models, and services on PostgreSQL and AWS A track record of owning significant systems end-to-end Bachelor's (or higher) degree in Computer Science, Engineering, or a related field Nice to have Comfort in distributed, high-availability production environments Experience with Django and TypeScript/React Background in fintech, payments, banking, or rewards Startup or small-team experience A personal interest in credit cards, points, or travel A competitive $300k base + equity. If interested, reply and Goliath Partners will be in touch!