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Aqovia

Senior Flutter Engineer - FinTech/BaaS

Aqovia · United Kingdom

IT System Custom Software Development · 11-50 employees

7 h ago
Remote Senior (5-10 yrs) Full-time United Kingdom
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About the role

Lead the architecture and development of a white-labeled FinTech mobile app and its Firebase Backend-for-Frontend stack. Drive technical ownership of scalability, security, and multi-tenancy while mentoring junior engineers.

What they look for

Flutter Dart Firebase TypeScript Node.js Terraform Firestore Riverpod Bloc Azure CI/CD GitHub Actions Codemagic RESTful APIs BFF Architecture Infrastructure as Code

Requirements

Requires expert-level proficiency in Flutter, Dart, and the full Firebase suite, including Cloud Functions and Firestore. Experience with Terraform for Infrastructure as Code and a lead mindset for architectural strategy are essential.

Benefits

Career Advancement Opportunities Competitive Benefits Package

Full description

Why Join Aqovia?

We don’t just build software, we engineer impact. Aqovia is an international technology firm and strategic incubator creating real-world value through AI, data, and bespoke software solutions. By joining us, you’ll work within a dynamic ecosystem that spans FinTech, EdTech, and Healthcare, ensuring the work you do today shapes the industries of tomorrow.

We’re looking for a visionary Lead Flutter Engineer in Pakistan to spearhead our mobile ecosystem and drive high-performance architecture.

What We’re Looking For

We are seeking an expert Senior Mobile/Flutter Engineer to own the architecture, development, and strategy for our white-labeled FinTech (BaaS) platform. You will serve as the primary technical owner of our Flutter frontend and Firebase Backend-for-Frontend (BFF) stack, combining hands-on execution with architectural leadership to build a high-performance, composable, and customizable financial app.

Core Technical Responsibilities

  • Flutter Mobile App: Lead development of a modular, tenant-configurable mobile app with clean, testable code.
  • Firebase BFF Architecture: Architect and implement the Firebase Backend-for-Frontend using TypeScript/Node.js Cloud Functions.
  • Azure Integration ("The Seam"):
  • Outbound: Route authenticated user requests to Azure financial services via Cloud Functions.
  • Inbound: Secure HTTP Cloud Functions to catch Azure webhooks and update Firestore state.
  • Database & Security: Design high-performance, denormalized Firestore schemas for real-time UI updates; manage Firebase Auth and enforce strict Firestore/Storage security rules.
  • Services Integration: Manage Firebase Cloud Storage for user document handling (KYC/statements) and Firebase Cloud Messaging (FCM) for push notifications.

Architectural & Leadership Responsibilities

  • Technical Ownership: Serve as the technical lead for mobile and BFF platforms, driving scalability, security, and maintainability.
  • Multi-Tenancy & Provisioning: Maintain JSON/asset theme engines for white-labeling and use Terraform (IaC) to automate isolated Firebase project deployment.
  • Modular Strategy: Build a plug-and-play feature architecture so tenants can easily enable or disable specific app capabilities.
  • Standards & Mentorship: Define coding standards, state management patterns (Riverpod/Bloc), and conduct code reviews to mentor mid/junior engineers.
  • DevOps & Strategy: Maintain automated CI/CD pipelines (GitHub Actions/Codemagic) and collaborate with Product/Azure teams on API contracts and technical roadmaps.

Required Skills & Experience

  • Expert-level proficiency in Flutter & Dart, with a portfolio of complex, high-performance apps shipped to both iOS and Android.
  • Deep, production-grade expertise across the Firebase suite: Firestore, Firebase Authentication, Cloud Functions (Node.js/TypeScript), Cloud Storage, and FCM.
  • Proven experience building a Backend-for-Frontend (BFF) architecture using Cloud Functions or similar serverless technology.
  • Strong understanding of Infrastructure as Code (IaC), with direct experience using Terraform being a major plus.
  • Demonstrable experience designing and managing complex Firestore data models (denormalization) and writing secure, efficient Security Rules.
  • Expertise in modern Flutter state management (e.g., Riverpod, Bloc), asynchronous programming (Streams), and dependency injection.
  • Strong familiarity with consuming RESTful APIs, handling webhooks, and working with JSON/ID Tokens.
  • A "lead" mindset: high sense of ownership, excellent problem-solving skills, and strong communication.

Nice to Haves

  • Experience in the FinTech, banking, or financial services industry.
  • Experience with the Azure ecosystem (even if just from an integration perspective).
  • Experience with automated testing frameworks for Flutter (e.g., flutter_test, patrol).
  • Knowledge of native mobile development (Kotlin/Swift) for potential custom integrations.

Joing Aqovia Means

  • Making a real difference: You'll be part of a team developing solutions that empower businesses while contributing to sustainable practices.
  • Growth opportunities: We invest in our employees' development and offer a path for career advancement.
  • Cutting-Edge Tech Stack: No legacy code, help us build a modern BaaS platform from the ground up.
  • Collaborative culture: We value teamwork, open communication, and a supportive environment.
  • Competitive benefits package: TBC and can be discussed in the call with the talent team.

If you're a problem-solver who thrives in a fast-paced environment and shares our commitment to positive impact, we encourage you to apply!

Equal Opportunity Employer

At Aqovia, we believe in the strength of diversity. We strive to reflect the varied markets we serve and foster an inclusive culture where everyone feels welcome, valued, and empowered to be their authentic selves. As an equal opportunity employer, we are committed to embracing all forms of diversity across our organisation.