Senior Fullstack Java/React Developer

Summary

Join our multinational team as a Senior Fullstack Developer! We are seeking a highly skilled and experienced professional with expertise in Java/React and modern web technologies to lead the design, development, and deployment of full-stack applications. This 100% remote position, based in Peru, requires strong proficiency in both frontend and backend technologies and collaboration with internal and external teams. The ideal candidate will have over 5 years of software engineering experience, advanced expertise in React.js and TypeScript, and a proven ability to deliver high-quality software solutions. The role offers a 6+ month contract with the possibility of extension and requires excellent communication and leadership skills. Bilingualism (native Spanish and advanced English) is a must.

Requirements

• Over 5 years of software engineering experience with solid full-stack exposure
• Proficient in JavaScript with advanced expertise in React.js and TypeScript
• Advanced experience with Java and Spring
• Strong understanding of RESTful API design and database technologies (SQL/NoSQL)
• Familiar with cloud platforms AWS, Azure, GCP and containerization using Docker and Kubernetes
• Skilled in CI/CD , version control ( Git ), and agile methodologies
• Experience with automated testing (unit, integration, E2E)
• Excellent communication and leadership skills
• Proven ability to deliver solutions from conception through production
• B2+ or Advanced English proficiency

Responsibilities

• Lead the design, development, and deployment of full-stack applications
• Architect scalable solutions using modern frameworks and cloud technologies
• Collaborate with frontend and backend teams to build seamless features
• Integrate APIs, databases, and third-party services
• Review code, mentor team members, and enforce best practices
• Write clean, testable, and maintainable code across the stack
• Participate in planning, estimation, and client meetings
• Troubleshoot complex problems and propose innovative solutions

Preferred Qualifications

• Additional backend experience with Node.js, Python, and .NET is a plus
• Excellent written and verbal communication skills
• Ability to work effectively in a team
• Strong analytical and problem-solving skills
• Thrives in a fast-paced, ever-changing start-up environment
• Demonstrated enthusiasm for technology, fintech, and making an impact

Benefits

• Contract Type : Payroll
• Location : The client is located in United States/Costa Rica but the position is 100% remote
• Contract Duration : 6+ months with the possibility of extension
• Schedule and Time Zone : Full-time, Monday to Friday (8 hours per day, 40 hours per week)
• Timezone: Peru - overlap with USA/Costa Rica hours (EST/CST), from 8 AM to 5 PM EST/CST