Senior Full Stack Engineer (Go/React)

About SpotOn We’re not just building restaurant tech, we’re giving independent restaurants the tools to compete and win. From our award-winning point-of-sale to AI-powered profit tools, everything we do helps operators boost profit, work smarter, and keep their best people. And every solution is backed by real humans who actually give a sh*t about helping restaurants succeed. - Named the #1 Restaurant POS by G2 (Fall 2025), based on ratings from real users - Rated the top-rated point-of-sale (POS) for restaurants, bars, retail, and small businesses by Capterra users - Awarded Great Places to Work and Built In’s Best Workplaces for multiple years running We move fast, care hard, and fight for independent restaurant operators to do what they love, and love doing it. If you’re looking to make an impact with heart and hustle, SpotOn is the place for you. SENIOR FULL STACK ENGINEER ABOUT THE ROLE We're looking for a Senior Full Stack Engineer to join our Restaurant POS team at SpotOn. You'll work across our Go backend and React frontend to build features that power thousands of restaurants. This is a high-impact role where your code runs in production environments serving real guests and staff every day. WHAT YOU'LL DO - Design and implement features spanning the full stack: Go services, REST/WebSocket APIs, and React UI - Work across multiple product surfaces including Front of House (POS terminals) and Back of House (management tools) - Collaborate with product, design, and other engineering teams to ship features end-to-end - Contribute to system reliability, performance, and scalability as we grow our merchant base - Participate in code reviews, architecture discussions, and on-call rotation - Help modernize our frontend architecture WHAT WE'RE LOOKING FOR Required: - 5+ years of professional software engineering experience - Strong proficiency in Go (or similar statically-typed backend language with willingness to learn Go quickly) - Strong proficiency in React and TypeScript - Experience with MongoDB or other document databases - Experience designing and consuming RESTful APIs - Comfort working in a large, established codebase with multiple contributors - Experience with real-time communication patterns (WebSockets, message queues) - Solid understanding of state management in complex frontend applications Preferred: - Experience with NATS or similar messaging systems - Experience with gRPC and protocol buffers - Experience in hospitality tech, payments, or POS systems - Experience with Webpack, monorepo tooling, or complex build pipelines - Familiarity with Docker, Kubernetes, and cloud infrastructure (AWS) - Experience with observability tools (Grafana, Prometheus, distributed tracing) TECH STACK - Backend: Go, MongoDB 4.4, NATS, gRPC, WebSockets - Frontend: React 16, TypeScript 5.5, Webpack 5, Zustand (+ legacy MobX migration in progress) - Infrastructure: AWS, Docker, Kubernetes - Tooling: LaunchDarkly, Grafana, GitHub Actions, Jira Compensation: - Our base pay range starts at $123,000 -$175,000 for this role - Please note the salary range listed is just one component of a competitive compensation package which includes a company stock plan - Offers will be reflective of the candidate’s location and experience. Benefits: At SpotOn, we put people above everything else. We’re known for our innovative software and technology solutions, but we stand out because of the hard-working humans behind the tech. We can’t take care of our clients without taking care of our employees first, and that’s why we invest in you with a competitive benefits package which includes: - Medical, Dental and Vision Insurance - 401k with company match - RSUs - Paid vacation, 10 company holidays, sick time, and volunteer time off - Employee Resource Groups to build community and inclusion at work We will never ask candidates to pay fees, purchase equipment, or share sensitive personal or financial information during the hiring process. All legitimate c