TECHNICAL LEAD - React JS

Happiest Minds Technologies; Abu Dhabi; On-site; AED 240,000 - 360,000; Full time

Job summary

Happiest Minds Technologies is seeking a Full Stack Developer to join our International Trading Platform team in Abu Dhabi. You will build a React web trading interface, a React Native micro-app, and Java-based backend microservices on AWS.

After a 6-month handover, you will own production support, deployments, and ongoing enhancements. Key tasks include API integrations with trading systems, cloud deployments via AWS, CI/CD with GitHub Actions, and maintaining security with OAuth and AWS

Qualifications

• Experience in building and integrating React web and React Native frontend with Java backend services.
• Strong knowledge of AWS deployments, CI/CD, and secure coding practices.
• Hands-on experience with fintech/trading platforms is preferred.

Responsibilities

• Collaborate with external consultants to build a React.js web trading interface.
• Develop React Native micro-app integrated into mobile banking channels.
• Create Java-based backend microservices (Spring Boot/Spring Cloud) with AWS deployment.
• Set up and optimize CI/CD pipelines with GitHub Actions for multi-environment deployments.
• Ensure security compliance (OAuth, API keys, AWS Secrets Manager/KMS).
• Own production support and feature development, including incident resolution.
• Document APIs, deployment processes, and operational runbooks.

Skills

React.js

React Native

Java 11+

REST API

WebSocket

Kafka/RabbitMQ

PostgreSQL/MySQL

NoSQL

AWS

GitHub Actions

Docker

OAuth/OpenID Connect

Agile/Scrum

Documentation

UI/UX best practices

Education

Bachelor's degree in Computer Science, Engineering, or equivalent experience

Tools

Spring Boot

Spring Cloud

Terraform

GitHub

Job description

Role Overview

We are seeking a

Job Description ? Technical Analyst

Role Overview

We are seeking a Full Stack Developer to join our International Trading Platform team.

This role will initially work alongside external consultants to build and integrate a React web application, React Native micro-app, and Java-based backend microservices hosted on AWS.

The role will transition into production support and continuous enhancement after a 6-month handover, taking full ownership of the codebase, deployments, and operational support.

Play Key Role In

• Supporting integration with third-party trading APIs.
• Managing cloud deployments via AWS & GitHub Actions.
• Maintaining high code quality and performance in a regulated financial environment

Key Responsibilities

• Collaborate with external development consultants to build:
  • React.js web trading interface.
  • React Native micro-app integrated into existing mobile banking channels.
  • Java-based backend microservices (Spring Boot/Spring Cloud) with AWS deployment.
• Implement trading API integrations?(order placement, market data, funding, account services).
• Participate in architecture discussions, code reviews, and sprint ceremonies.
• Set up and optimize CI/CD pipelines?in GitHub Actions for multi-environment deployments.
• Ensure security compliance (OAuth, API keys, secure storage in AWS Secrets Manager/KMS).
• Absorb the complete codebase and architecture from external consultants.
• Document all systems, APIs, deployment processes, and operational runbooks.
• Conduct shadow support alongside consultants to learn incident resolution and hotfix deployment.
• Take full ownership of platform maintenance and new feature development.
• Monitor systems using AWS CloudWatch, logging, and alerting tools.
• Troubleshoot production issues and deploy fixes rapidly without impacting uptime.
• Enhance existing features and optimize performance.
• Collaborate with internal teams for ongoing product roadmap items.

Required Skills & Experience

• React.js (Hooks, Context API, Redux/Zustand/Recoil).
• React Native (navigation, native modules, micro-frontend integration).
• UI/UX best practices, responsive and accessible design.
• Java 11+ with Spring Boot & Spring Cloud.
• REST API & WebSocket development.
• Event-driven processing (Kafka, RabbitMQ, or AWS SQS/SNS).
• Database: PostgreSQL/MySQL and NoSQL familiarity.
• AWS: EKS/ECS, RDS, S3, Secrets Manager, KMS, CloudWatch.
• CI/CD: GitHub + GitHub Actions (build, test, deploy pipelines).
• Docker image build & deployment.
• Experience integrating REST/WebSocket APIs from trading & wealth platforms
• Understanding of financial trading concepts
• Strong documentation skills (code, architecture, operational runbooks).
• Agile/Scrum experience.
• Excellent communication for vendor coordination and internal stakeholder updates.

Preferred Skills

• Experience in micro-frontend architecture?for web and mobile apps.
• Familiarity with secure coding?for financial systems (OWASP, PCI-DSS).
• Experience with OAuth/OpenID Connect?integration.
• Exposure to Infrastructure as Code (Terraform/CloudFormation).

Qualifications

• Bachelor?s degree in Computer Science, Engineering, or equivalent experience.
• 8 plus years of full-stack development experience, with at least 2?3 years in React + Java + AWS deployments.
• Prior fintech or trading platform?experience highly preferred.

React JS,Fintech,Technical