Full Stack Engineer

Full Stack EngineerAbout Gains.comGains.com is a fast-growing U.S.-based gaming and entertainment platform built with a premium product mindset. We care deeply about trust, speed, and user experience, and we move quickly as a small, highly aligned team.This role sits on a small engineering team shipping the product end-to-end: web, mobile, backend, and the operational tooling that runs the business behind the scenes. You'll work directly with the CEO, CTO, design lead, and the rest of engineering.The RoleWe're hiring a Full Stack Engineer who can take a problem from ambiguous request to shipped, tested, and monitored in production. You'll own features across the stack and have meaningful input on architecture, prioritization, and tradeoffs.What you’ll be doingBuild features end-to-end across the Angular web app, Flutter mobile app, and Node.js backendDesign schemas, write queries, and reason about transactional correctness in a system where money is the source of truthShip to production multiple times a week behind CI/CD with strong test coverage and clear rollback pathsReview teammates' code with care; expect the same in returnPartner with design and product to scope down before scoping upImprove the developer experience around the monorepo, test harness, deploy pipeline, and observabilityUse AI coding tools as part of your daily workflow. We're an AI-native team and expect leverage, not just typing speedRequirements5+ years of professional full-stack experienceAn advocate for strong engineering principles including CI/CD automation, high test coverage, thorough code reviews, and scalable system design.Experience designing and querying relational databases at scale; comfortable reasoning about schema design, indexes, transactions, and query performanceWorking knowledge of at least one major cloud provider such as GCP (preferred), AWS, or Azure — provisioning services, IAM, secrets, logging, and tracingStrong testing discipline — unit, integration, and ideally end-to-end testsStrong product sense — willing to weigh trade-offs, push back on scope, and ship the smallest thing that actually solves the problemBonus PointsSolid Angular web experience; comfortable with standalone components, signals, RxJS, and reactive formsFlutter / Dart for mobile nativeNode.js backend experience, including REST APIs, middleware, sessions, and rate limitingFirebase (Auth, Cloud Functions)Git + PR-based collaboration, code review etiquette, clear commit hygieneComfortable in a monorepo workflow (i.e. Nx) and shipping changes that span multiple packagesStrong TypeScript / ESM fluencyComfortable working with AI coding tools (Claude Code, Cursor, Copilot) as a daily-driver multiplierPerksComprehensive medical, dental and vision insurance with employer contribution for yourself and your dependentsStock optionsUnlimited vacation and sick daysBrand new MacBook ProRemote-first work environment with flexible working hoursCompetitive salaryHigh ownership, low bureaucracyDirect access to leadership