Senior Software Engineer (React Java/Kotlin) Contract Hybrid

TechWish; Charlotte (NC); Hybrid; USD 110,000 - 160,000; Full time

Job summary

TechWish in Charlotte, NC is seeking a Senior Software Engineer with expertise in React.js and backend services using Kotlin or Java to join a high-performing tech team.

The role focuses on building modern web applications, developing RESTful APIs and microservices, and collaborating across product, design, and engineering teams. A hybrid schedule with 2 days on-site and an in-person interview is required.

Qualifications

• 5+ years of professional software engineering experience.
• Strong hands-on React.js experience.
• Backend development in Kotlin or Java.
• Experience with NoSQL databases (MongoDB).
• Experience working in Agile development environments.

Responsibilities

• Design, develop, test, and maintain modern web applications using React.js.
• Build scalable backend services and APIs with Kotlin or Java.
• Develop and integrate RESTful APIs and microservices.
• Work with MongoDB and NoSQL databases to support data requirements.
• Collaborate with product owners, architects, designers, and engineers to deliver solutions.
• Participate in code reviews and uphold engineering best practices.
• Troubleshoot performance, scalability, and reliability issues.
• Contribute to architecture discussions and technology decisions.
• Write clean, maintainable, and well-tested code.
• Leverage AI-assisted development tools to improve efficiency while maintaining quality.

Skills

React.js

Java / Kotlin

TypeScript

RESTful APIs

Microservices

NoSQL / MongoDB

Agile Development

Redux / State Management

Kafka / Event-Driven Architecture

Job description

• Location: Charlotte, NC
• Work Arrangement: Hybrid 2 days onsite per week
• Interview: In-person interview is required
• Candidates should be local to the Charlotte, NC area or within a reasonable commuting distance.
• Please indicate your current city/location on your resume.
• Candidates who are unable to attend the required in-person interview or work onsite 2 days per week should not apply.

Important Local/Commutable Candidates Preferred

• Location: Charlotte, NC
• Work Arrangement: Hybrid 2 days onsite per week
• Interview: In-person interview is required
• Candidates should be local to the Charlotte, NC area or within a reasonable commuting distance.
• Please indicate your current city/location on your resume.
• Candidates who are unable to attend the required in-person interview or work onsite 2 days per week should not apply.

Position Summary

We are seeking a Senior Software Engineer (React + Java/Kotlin) to join a high-performing technology team responsible for building and enhancing modern, scalable digital solutions.

The ideal candidate will have strong expertise in React.js development and experience building backend services using Kotlin or Java. This role requires a collaborative engineer who is passionate about delivering high-quality software, leveraging modern development practices, and utilizing AI-powered tools to improve productivity and efficiency.

Key Skills

• React.js
• Java / Kotlin
• TypeScript
• RESTful APIs
• Microservices
• NoSQL / MongoDB
• Agile Development
• Redux / State Management
• Kafka / Event-Driven Architecture

Key Responsibilities

• Design, develop, test, and maintain modern web applications using React.js.
• Build and support scalable backend services and APIs using Kotlin (preferred) or Java.
• Develop and integrate RESTful APIs and microservices.
• Work with NoSQL databases, including MongoDB, to support application data requirements.
• Collaborate with product owners, architects, designers, and engineering teams to deliver business solutions.
• Participate in code reviews and ensure adherence to engineering best practices.
• Troubleshoot and resolve application performance, scalability, and reliability issues.
• Contribute to application architecture, technical design discussions, and technology decisions.
• Write clean, maintainable, and well-tested code.
• Leverage AI-assisted development tools responsibly to improve efficiency while maintaining code quality and engineering standards.

Required Qualifications

• 5+ years of professional software engineering experience.
• Strong hands-on experience with React.js.
• Experience developing backend applications using Kotlin or Java.
• Experience working with NoSQL databases.
• Strong understanding of modern software development principles and best practices.
• Experience working in Agile development environments.
• Strong problem-solving and analytical skills.
• Excellent communication and collaboration abilities.

Preferred Qualifications

• Experience with Kotlin development.
• Experience with MongoDB.
• Experience with TypeScript.
• Experience within Financial Services, Banking, Payments, or FinTech environments.
• Previous experience supporting American Express initiatives or platforms.
• Experience developing and consuming RESTful APIs.
• Familiarity with Redux and state management concepts.
• Understanding of responsive web design and modern UI development practices.
• Exposure to event-driven architectures and messaging technologies.

Nice-to-Have Skills

• TypeScript
• Redux
• MongoDB
• API Development
• Responsive Web Design
• Kafka
• Event-Driven Architecture

Industry Experience Strongly PreferredLess Preferred

• Banking
• Financial Services
  • FinTech
  • American Express experience

Candidates whose experience is primarily limited to retail environments without exposure to complex financial, payments, or highly regulated ecosystems are less preferred.

Work Location

Charlotte, NC Hybrid, 2 Days Onsite/Week

Important: An in-person interview is required for this position. Candidates should be local to Charlotte, NC or within a reasonable commuting distance and able to work onsite 2 days per week.