Senior Backend Engineer (Wallets & Payments)

Flatgigs

Role Overview

We are looking for a Senior Backend Engineer with strong expertise in .NET, Azure cloud architecture, and fintech backend systems.

This role focuses heavily on backend architecture, distributed systems, and financial transaction integrity.

Key Responsibilities Backend Platform Development

• Design and build secure, scalable backend services for digital wallet and payment systems.
• Develop microservices-based architecture supporting high-volume financial transactions.
• Build and maintain ledger systems ensuring transaction accuracy and reconciliation.

Wallet & Financial Infrastructure

• Implement wallet services, balance tracking, and transaction processing logic.
• Design systems for double-entry ledger accounting, settlement flows, and reconciliation pipelines.
• Ensure compliance with fintech best practices for financial transaction integrity.

Cloud & Infrastructure

• Develop backend services using .NET and Azure Cloud services.
• Build scalable APIs and services deployed through containerized or microservice environments.
• Optimize systems for performance, reliability, and fault tolerance.

Fintech System Architecture

• Collaborate with product and engineering teams to design financial product architecture.
• Implement integrations with payment gateways, banking APIs, and financial partners.
• Ensure systems align with regional fintech regulatory requirements, particularly within the UAE ecosystem.

Required Experience Mandatory Requirements

• Strong backend engineering experience with .NET / C#
• Experience building systems on Microsoft Azure Cloud
• Proven experience designing microservices-based architectures
• Prior experience working in fintech products
• Direct experience building digital wallets or payment systems
• Experience working with ledger systems or transaction accounting models
• Strong understanding of financial data integrity, reconciliation, and transactional systems

Preferred Experience

• Experience with payments infrastructure or PayFac systems
• Experience integrating banking APIs, card networks, or payment gateways
• Experience with high-availability financial systems
• Exposure to compliance-driven fintech architecture
• Previous experience in startup or high-growth fintech environments

Tech Stack

• Backend: .NET / C#
• Cloud: Microsoft Azure
• Architecture: Microservices
• Financial Systems: Wallet infrastructure, ledger systems, payments processing
• APIs: RESTful services, financial integrations

What We Are Looking For

• A backend engineer who thinks like a financial systems architect.
• Someone comfortable designing mission-critical transaction systems.
• A builder who understands that fintech infrastructure must be precise, secure, and compliant.

This role will form part of the core engineering team responsible for building the wallet and payments infrastructure for AHOY Money.