Qureos

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What We’re Looking For

Location

Business Bay, Dubai

InOffice / Hybrid

Experience

3–4 Years

Employment Type

Full-time

About the Role

We are looking for a skilled .NET Developer with strong C# backend experience to build and scale secure, high-performance backend systems for enterprise-grade applications.

The ideal candidate should have experience working on wallet-like apps, fintech platforms, payment systems, digital transaction systems, or enterprise SaaS products. You will be responsible for designing APIs, optimizing backend services, managing transaction-heavy workflows, and ensuring high reliability and performance.

This role requires strong problem-solving skills, an ownership mindset, and the ability to work in a fast-paced development environment with strict performance KPIs, including critical API response times under 150–200 ms.

Key Responsibilities

  • Design, develop, and maintain backend services using .NET / .NET Core and C#
  • Build scalable, secure, and high-performance APIs and microservices
  • Work on wallet-like flows such as user balances, transactions, deposits, withdrawals, ledgers, payment status updates, and reconciliation
  • Ensure critical APIs meet response-time KPIs of under 150–200 ms
  • Work with databases such as SQL Server / PostgreSQL / MySQL
  • Optimize database queries, APIs, caching, and backend workflows for performance
  • Implement secure authentication and authorization using JWT, OAuth, RBAC, or similar methods
  • Integrate third-party APIs such as payment gateways, KYC providers, banking APIs, blockchain APIs, or notification services
  • Collaborate with frontend, DevOps, QA, and product teams
  • Write clean, maintainable, and testable code
  • Participate in code reviews and architectural discussions
  • Troubleshoot, debug, and resolve production issues
  • Maintain proper logging, monitoring, audit trails, and error handling for enterprise-grade systems

Required Skills

  • Strong experience in C# and .NET Core / ASP.NET Core
  • Solid understanding of backend development, RESTful APIs, and microservices architecture
  • Experience building enterprise-grade or transaction-heavy backend systems
  • Experience with wallet-like apps, fintech platforms, payment systems, or digital ledger-based applications
  • Strong understanding of database design, query optimization, and transactional consistency
  • Experience with SQL databases such as SQL Server / PostgreSQL / MySQL
  • Familiarity with caching systems such as Redis
  • Understanding of Git version control
  • Knowledge of secure coding practices, authentication, authorization, and encryption
  • Ability to optimize APIs to meet performance KPIs of 150–200 ms or lower
  • Experience with logging and monitoring tools is a plus
  • Basic understanding of cloud platforms such as AWS / Azure / GCP

Good to Have

  • Experience with ledger-based systems, double-entry accounting, settlement, or reconciliation
  • Experience with WebSockets or real-time transaction status updates
  • Knowledge of message queues such as Kafka / RabbitMQ / AWS SQS / Azure Service Bus
  • Exposure to Docker, Kubernetes, ECS, or containerized deployments
  • Experience with CI/CD pipelines
  • Knowledge of blockchain, web3, crypto wallets, or payment gateway integrations
  • Experience in high-scale fintech, banking, wallet, or enterprise SaaS products
  • Familiarity with tools such as Serilog, ELK, Grafana, Prometheus, or Application Insights
  • Strong ownership and accountability
  • Ability to work independently with minimal supervision
  • Good communication and collaboration skills
  • Problem-solving mindset with attention to detail
  • Ability to write secure, scalable, and production-ready backend code
  • Performance-focused approach to backend development
  • Experience handling critical systems where speed, accuracy, and reliability matter

Compensation

  • Competitive salary
  • Opportunity to work on cutting-edge backend and fintech systems
  • Performance-based growth opportunities

Why Join Us

  • Work on real-world scalable wallet and enterprise systems
  • Fast execution environment with high ownership
  • Opportunity to build backend systems with strict performance and reliability standards
  • Exposure to fintech, wallet, payment, and international enterprise projects

Job Type: Full-time

Pay: AED4,000.00 - AED6,000.00 per month

Ability to commute/relocate:

  • Dubai: Reliably commute or planning to relocate before starting work (Preferred)

Experience:

  • .Net Development: 2 years (Required)

Work Location: In person

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