Sr. Full Stack Engineer - Digital Banking & API Platform

GSSTech Group · Dubai

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We are looking for an experienced Senior Full Stack Engineer with strong expertise in React.js, Node.js, TypeScript, and modern enterprise application architecture to support Digital Products, API Banking, and Merchant Acquiring initiatives.

The ideal candidate will possess strong hands-on development experience in building scalable, high-performance enterprise applications and APIs while working within Agile product engineering teams. The role requires expertise across frontend and backend technologies, modern DevOps practices, API integrations, and enterprise-grade software engineering standards.

Requirements

Key Responsibilities

• Design, develop, and maintain scalable full-stack enterprise applications using React.js and Node.js.
• Develop highly responsive, reusable, and testable frontend components using React.js and TypeScript.
• Design and develop scalable and highly available RESTful APIs and microservices using Node.js.
• Build responsive and performant web applications adhering to enterprise engineering standards.
• Develop self-contained, reusable, and maintainable modules and components.
• Participate in architecture discussions and contribute to technical design decisions.
• Architect and automate application build and deployment processes.
• Monitor and optimize frontend and backend application performance.
• Troubleshoot production issues and perform debugging and performance tuning.
• Collaborate closely with product owners, architects, QA teams, DevOps teams, and business stakeholders.
• Participate in code reviews and ensure adherence to coding, security, testing, and documentation standards.
• Contribute to CI/CD implementation and engineering best practices.
• Participate in Agile ceremonies, sprint planning, backlog grooming, and release activities.

Required Technical Skills

Frontend

• Strong hands-on experience with React.js and TypeScript (5+ years).
• Strong proficiency in:
• React Hooks
• Component Lifecycle
• Context API
• Redux
• Responsive Web Application Development
• Modern React Architecture Patterns
• Strong knowledge of:
• HTML5
• CSS3
• JavaScript (ES6+)
• TypeScript
• DOM Manipulation
• Experience with:
• Tailwind CSS
• Styled Components
• Material UI
• CSS Pre-processors
• CSS-in-JS techniques
• Experience developing scalable and high-performance enterprise web applications.
• Experience monitoring and improving frontend performance.
• Strong understanding of frontend build pipelines and package managers such as npm and yarn.

Backend

• Strong hands-on experience with Node.js and TypeScript (5+ years).
• Expertise in developing:
• RESTful APIs
• Microservices architectures
• Enterprise backend services
• Strong understanding of:
• Non-blocking code
• Asynchronous programming
• Multi-threading concepts
• Experience implementing:
• JWT Authentication
• OAuth
• Token-based authentication mechanisms
• Single Sign-On (SSO)
• Experience with:
• GraphQL (Good to Have)
• API Gateway integrations such as 3Scale

Databases

• Strong experience with NoSQL databases.
• Good understanding of:
• MongoDB
• Redis
• Caching strategies
• Database architecture concepts

DevOps & Cloud

• Strong understanding of CI/CD principles and modern software delivery practices.
• Hands-on experience with:
• Docker
• Kubernetes
• Distributed systems
• Containerization technologies
• Familiarity with:
• AWS services
• Microsoft Azure
• Cloud-native application architectures

Messaging & Integration

• Experience working with:
• Kafka
• Pushpin
• Event-driven architectures
• Task and message queues
• Experience integrating enterprise APIs and third-party services.

Testing & Quality Engineering

• Experience with:
• Unit Testing
• Jest
• Enzyme
• Jasmine or equivalent testing frameworks
• Experience using:
• ESLint
• TSLint
• Prettier
• Strong understanding of:
• Security standards
• Coding standards
• Documentation best practices
• Technical benchmarking and optimization techniques

Functional Skills

• Strong understanding of software engineering best practices and enterprise application design.
• Experience working in Agile/Scrum delivery environments.
• Ability to benchmark technologies and recommend best engineering practices.
• Strong focus on code quality, maintainability, and performance.
• Ability to contribute to application architecture and technical design discussions.

Soft Skills

• Strong ownership mindset and ability to drive technical initiatives independently.
• Excellent stakeholder management and communication skills.
• Strong problem-solving and analytical abilities.
• Ability to collaborate effectively across cross-functional teams.
• Comfortable presenting technical solutions and ideas to senior stakeholders.
• Self-motivated, proactive, and delivery-focused.

Preferred Domain Experience

• Banking
• Financial Services
• Digital Banking
• API Banking
• Merchant Acquiring
• Retail (Good to Have)

Education

• Bachelor's or Postgraduate degree in Computer Science, Information Technology, Engineering, or related field (or equivalent industry experience).

Mandatory Skills Checklist

Candidates should have experience in most of the following:

• React.js
• Node.js
• TypeScript
• REST APIs
• Microservices
• NoSQL Databases
• CI/CD
• Docker
• Kubernetes
• JWT / OAuth
• Redux / Context API
• Tailwind CSS / Material UI / Styled Components
• Jest / Enzyme / Jasmine
• Kafka / Message Queues
• Agile / Scrum
• Banking or Digital Products experience (preferred)

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