Senior Software Engineer - (API Banking)

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GSS Group is seeking a Senior Software Engineer for API Banking in Dubai, full-time onsite, to join the Digital Products team. The role centers on designing and building scalable backend systems and RESTful APIs with Node.js, JavaScript, and TypeScript, including API integrations, microservices, performance tuning, testing, security, and cloud-native delivery. You should have 5+ years of Node.js experience, strong API design skills, GraphQL, API gateway familiarity, JWT/OAuth, and experience with Kafka, Docker, Kubernetes, and CI/CD. Banking, fintech, or digital payments experience is highly valued. To apply, tailor your resume to showcase scalable architectures, security and performance gains, include project links, and write a brief note connecting your experience to the role and domain.

We are seeking a highly skilled Senior Software Engineer with strong expertise in Node.js, JavaScript, TypeScript, and backend engineering to join our Digital Products engineering team.

The ideal candidate will have strong hands-on experience designing and developing scalable, high-performance RESTful APIs, distributed services, and enterprise-grade backend applications. The role requires strong expertise in Node.js development, API integrations, performance optimization, testing practices, and modern cloud-native engineering environments.

The candidate should have experience working within Agile teams and possess strong knowledge of banking, financial services, fintech, or enterprise digital platforms.

Requirements

Key Responsibilities

• Design, develop, and maintain scalable backend applications and RESTful APIs using Node.js technologies.

• Build highly available, secure, and performance-oriented backend services supporting enterprise digital platforms.

• Develop and maintain API integrations, microservices, and distributed service architectures.

• Write clean, maintainable, secure, and well-tested code following engineering best practices.

• Perform performance tuning, debugging, monitoring, and optimization of backend applications.

• Develop and maintain unit tests and ensure strong code quality standards across applications.

• Collaborate with architects, product teams, QA, DevOps, and business stakeholders to deliver high-quality technology solutions.

• Participate in code reviews, technical discussions, architecture decisions, and engineering improvements.

• Troubleshoot complex production issues across distributed services environments.

• Contribute to CI/CD automation, deployment improvements, and engineering process enhancements.

• Research, evaluate, and benchmark modern technologies to improve application performance and scalability.

Required Technical Skills

Backend Development

• Minimum 5 years of hands-on coding experience with Node.js and JavaScript.

• Strong expertise in Node.js backend development frameworks.

• Strong experience designing and developing scalable RESTful APIs.

• Hands-on experience with TypeScript (minimum 1 year).

• Strong understanding of asynchronous programming and backend application architecture.

API & Integration

• Practical experience with GraphQL.

• Experience with API Gateway integrations such as 3Scale or similar platforms.

• Strong understanding of authentication and authorization mechanisms including:

• JWT
• OAuth
• Token-based authentication
• Secure API practices

Database & Messaging

• Strong experience working with databases and data-driven applications.

• Experience with distributed messaging and queue-based architectures including:

• Kafka
• AWS messaging services
• Microsoft Azure messaging services
• Pushpin or similar technologies

Cloud & DevOps

• Strong understanding of CI/CD principles and modern software delivery practices.

• Hands-on experience with containerization technologies including:

• Docker
• Kubernetes

• Experience troubleshooting and supporting applications within distributed cloud environments.

Functional Skills

• Experience following strong coding, security, unit testing, and documentation standards.

• Experience designing reliable and scalable application architectures.

• Ability to contribute to technical design discussions and engineering decisions.

• Experience working in Agile/Scrum delivery environments.

• Ability to work effectively within enterprise technology environments.

• Experience in Banking, Financial Services, FinTech, or Digital Payments platforms is highly preferred.

Required Soft Skills

• Strong problem-solving and analytical skills.

• Ability to influence technical decisions across multiple teams.

• Strong collaboration skills with engineering, product, architecture, and business teams.

• Self-driven and capable of owning deliverables with minimal supervision.

• Excellent communication skills with the ability to present technical concepts to senior stakeholders.

• Strong ownership mindset with focus on quality, reliability, and continuous improvement.

Preferred Domain Experience

• Digital Banking Platforms
• API Banking
• Merchant Acquiring Platforms
• Payments & Financial Services
• Enterprise Digital Products

Education

Bachelor’s Degree or Postgraduate qualification in Computer Science, Information Technology, Engineering, or related discipline (or equivalent industry experience).