Founding Full-Stack (Flutter and Java) Engineer

About Grand

Grand is the first purpose-built fintech for the B2B economy.

We’ve raised over $5m to build the most intelligent fintech platform for businesses that operate in the built world.

Our first product, Grand Profile, helps businesses understand whom they extend credit to, payment terms, unsecured loans, etc. – surfacing early signals of risk and growth so they can act sooner.

Over time, this trust network becomes the foundation for an intelligent payment network where businesses can extend credit, move money, and transact with confidence.

Grand is founded and funded by a group of entrepreneurs, investors and researchers who’ve built, sold, worked in, and invested in global fintech, commerce, and AI companies, including Mastercard Labs, Stripe, Shopify, Airwallex, American Express, WhenThen, Loveable, and others.

The Role

We’re hiring a Founding Full-Stack Engineer (Flutter and Java) 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 frontend and backend, targeting mobile and web, and using AI tools by default to move faster without sacrificing quality.

We work in Java on the backend, but we’re hiring for depth, not language. If you’ve built and operated production backends — in Go, Kotlin, Python, or another modern stack — and are excited to write Java, we want to talk.

This is a product-focused engineering role, and at Grand you are your own product manager. You’ll work alongside founders, designers, AI engineers, and other product engineers — shaping what gets built, not just how. Your primary responsibility is shipping end-to-end product functionality that’s reliable, well-designed, and production-ready.

This is a 0→1 environment, where you help define how Grand feels, behaves, and earns trust from day one.

What You’ll Do

• Design, build, and ship 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

• Account for mobile release cycles, performance, offline behaviour, and partial failure

• Integrate platform services and AI capabilities into user-facing workflows

• Make product decisions on what to build and how, in collaboration with founders and designers

• Write Java services and APIs on AWS to power your frontend features

• Design APIs and data models that operate reliably within a distributed backend, with a security-first mindset

• Use AI-assisted development tools to accelerate coding, testing, and refactoring

• Own features through their full lifecycle, from idea → production → iteration

Must Have

• Shipped at least one Flutter app to production on the App Store or Play Store, ideally with end-to-end ownership

• Strong Flutter experience including state management, platform channels, and production debugging

• Awareness of mobile-specific concerns: performance, release management, offline behaviour, partial failure

• Strong backend experience in real production systems — Java preferred, but comparable depth in Go, Kotlin, Python, or another modern backend stack is welcome (you must be excited to work in Java)

• Experience designing APIs, modelling data, and reasoning about distributed concerns (latency, retries, idempotency, failure handling)

• Experience shipping and operating software in AWS-based production environments

• Familiarity with CI/CD workflows across mobile and backend

• Experience working in startup or 0→1 environments

• Security, data-protection, and compliance awareness when building production systems

• AI-first mindset, using modern tools to increase velocity responsibly

Nice to Have

• Experience building products in fintech, payments, credit, identity, KYB, or other regulated/financial environments

• Advanced Flutter: web alongside mobile, deep linking, push notifications, in-app review prompts, and frontend testing

• Real-time features in production (WebSockets, server-sent events, live updates)

• GraphQL in production

• Direct Java experience, including event-driven or distributed architectures

• Experience integrating with AI/ML systems in cloud-native environments

Salary and Benefits

• Excellent Salary: Competitive and reflective of impact and responsibility

• Equity: Meaningful ownership in a long-term company

• Hybrid Work: At least 3 days in our Dublin office, with extended remote on request — outcomes matter more than optics

• Health Insurance & Pension: Comprehensive cover

• Holidays: Generous holiday allowance

• Equipment: High-end spec laptop and setup of your choice

Who You Are

You want to build a company, not just code at one. You’re a product-minded engineer with a startup mindset, comfortable operating in a 0→1 environment, making progress with imperfect information and taking responsibility for outcomes. You have a bias toward shipping real value, not ceremony or over-engineering.

You enjoy building things people actually use and rely on, especially on mobile and web. You care about how a product feels — the polish, the responsiveness, the small details — and you understand how clients, APIs, and cloud systems interact under real-world conditions.

You care about reliability, performance, and clarity across the stack, not just getting something working once. You’re a clear communicator who can reason about trade-offs and constraints with founders, designers, and other engineers.

You use AI tools to move faster, but you understand the code you ship and stand behind it. You thrive in ambiguity, take pride in owning problems end-to-end, and build software that earns trust.

You’re based in Dublin, or in easy commuting distance (or ready to be), and ready to help build a product from the inside out.

If this sounds like you, let’s talk.