Full Stack Engineer - FinTech

Full Stack Engineer - FinTech

About the Role

We're looking for a Full Stack Engineer to build and maintain features across our mobile and backend systems. You'll work on React Native for the mobile app and Java + Kotlin for backend services, collaborating closely with product, design, and QA to deliver reliable, high-performing experiences.

Responsibilities

• Develop and maintain mobile applications using React Native

• Build backend APIs and services using Java (and Kotlin where needed)

• Design, implement, and optimize backend components for performance, scalability, and reliability

• Integrate mobile app features with backend services (REST/GraphQL as applicable)

• Write clean, testable code and maintain strong engineering standards

• Participate in system design, architecture discussions, and technical planning

• Debug production issues and improve observability (logs/metrics/tracing)

• Collaborate with cross-functional teams to deliver new features from concept to release

• Maintain and improve CI/CD pipelines (as needed)

• Required Qualifications

• 5+ years of professional software development experience

• Strong experience with React Native and building production-quality mobile features

• Strong backend development experience with Java

• Experience building and consuming APIs (REST/GraphQL)

• Solid understanding of object-oriented programming, data structures, and algorithms

• Proficiency with relational and/or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB)

• Experience with testing frameworks and practices (unit/integration testing)

• Familiarity with authentication/authorization (OAuth2/JWT or similar)

• Experience using Git and working with code review workflows

• Strong debugging skills and understanding of asynchronous/mobile-network behavior

Required Skills

• Data

• FinTech

• Kotlin

• Mobile Applications

• Product Design

• REST

• Development

• Authorization

• Authentication

• Debugging

• React Native

• Pipelines

• Structures

• GraphQL

• Data Structures

• NoSQL

• Scalability

• CI/CD

• Algorithms

• Features

• Metrics

• Components

• Reliability

• React

• Architecture

• Software Development

• Programming

• Integration

• PostgreSQL

• Databases

• MongoDB

• Software

• Testing

• MySQL

• Git

• Planning

• Design

• Engineering

• Java

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