Founding Full-Stack Engineer

Founding Full-Stack Engineer THE ROLE We’re hiring a Full-Stack Product Engineer to build and ship the core product experiences that customers actually use at Grand. This is a hands-on individual contributor role for someone who enjoys owning problems end-to-end. You’ll design, build, and ship features across backend and frontend, working primarily in Java on the backend and Flutter on the frontend, targeting mobile and web, and using AI tools by default to move faster without sacrificing quality. This is a product-focused engineering role. You’ll collaborate closely with backend, frontend, platform, and AI engineering teams, but your primary responsibility is shipping end-to-end product functionality that is reliable, well-designed, and production-ready. You’ll work alongside founders, designers, AI engineers, and other product engineers in a startup / 0→1 environment, shaping how Grand feels, behaves, and earns trust from day one. WHAT YOU’LL DO - Build and ship end-to-end product features across backend and frontend - Write clean, maintainable Java services and APIs running in a cloud-native (AWS) environment - Build high-quality Flutter applications for mobile (iOS & Android) and web - Implement product features using established design systems and component libraries - Contribute thoughtfully to reusable frontend components where needed - Design APIs and data models that operate reliably within a distributed backend - Integrate platform services and AI capabilities into user-facing workflows - Build features with a security-first mindset, operating within established compliance constraints - Work within and contribute to CI/CD pipelines across backend and mobile/web frontend - Account for mobile release cycles, performance constraints, and partial failure - Use AI-assisted development tools to accelerate coding, testing, and refactoring - Own features through their full lifecycle, from idea → production → iteration - Debug, harden, and improve systems based on real-world usage - Move quickly while keeping a high bar for correctness, performance, and clarity MUST HAVE - Strong experience as a full-stack or product-focused engineer - Solid backend experience with Java in real production systems - Hands-on experience building mobile-first applications with Flutter - Experience shipping mobile and/or web products to production - Comfort owning features end-to-end, across frontend, backend, and integration - Experience designing and consuming APIs, modelling data, and managing application state - Understanding of distributed backend concerns (latency, retries, idempotency, failure handling) - Experience shipping and operating software in AWS-based production environments - Experience working in startup or 0→1 environments - Familiarity with CI/CD workflows, including mobile and backend deployment pipelines - Awareness of security, data protection, and compliance considerations when building production systems - Ability to collaborate closely with product, design, and specialist engineers - AI-first mindset, using modern tools to increase velocity responsibly - Clear communicator who can reason about trade-offs and constraints - Bias toward shipping real value, not ceremony or over-engineering NICE TO HAVE - Experience building products in fintech or regulated environments - Exposure to payments, onboarding, identity, or data-heavy domains - Familiarity with frontend testing practices (unit, widget, integration) - Familiarity with mobile performance, offline behaviour, and release management - Familiarity with event-driven or distributed architectures - Experience integrating with AI- or ML-powered systems - Experience contributing to backend systems in cloud-native environments, without owning infrastructure SALARY AND BENEFITS - Excellent Salary: Competitive and reflective of impact and responsibility - Equity Options: Meaningful ownership in a long-term company - Hybrid Work: A ... (truncated, view full listing at source)