Senior Java Developer

Skilltune Technologies; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Skilltune Technologies in the United States is seeking a Senior Java Developer with strong AWS and React.js experience to design, develop, and maintain scalable enterprise applications.

You will lead architecture decisions, mentor juniors, implement CI/CD, and collaborate with product owners and QA to deliver high-quality software.

Proficiency in Java, Spring Boot, REST APIs, and front-end integration will be highly valued.

Qualifications

• 9+ years of hands-on Java development (Java 8+).
• Strong Spring Framework / Spring Boot expertise and microservices.
• Hands-on AWS cloud architecture and services experience.
• Proficiency in React.js, Redux, and JavaScript/TypeScript.
• Experience with REST APIs, JSON, OAuth2, JWT, and security best practices.
• CI/CD pipelines experience; Docker and Kubernetes a plus.
• Solid SQL/NoSQL knowledge and distributed systems understanding.

Responsibilities

• Design, develop, and maintain Java-based backend applications using Spring Boot.
• Build RESTful APIs and integrate with internal and external systems.
• Develop responsive front-end interfaces with React.js and Redux; ensure performance.
• Lead architecture discussions, review code, and mentor developers.

Skills

Java

Spring Boot

AWS

React.js

TypeScript

REST APIs

JWT/OAuth2

CI/CD

Tools

Docker

Kubernetes

GitHub Actions

Jenkins

Job description

Role & responsibilities

We are seeking a highly skilled Senior Java Developer with strong experience in AWS cloud services or React.js for front-end development. The ideal candidate will design, develop, and maintain scalable enterprise applications while driving architecture decisions, mentoring junior developers, and ensuring best engineering practices.

Key Responsibilities

Backend Development (Java)

• Design, develop, and maintain robust, scalable, and secure applications using Java, Spring Boot, Microservices.
• Build RESTful APIs and integrate them with internal and external systems.
• Optimize application performance, reliability, and scalability.

Cloud & DevOps (AWS)

• Architect and maintain cloud-native solutions using AWS services such as EC2, Lambda, S3, API Gateway, RDS, DynamoDB, ECS/EKS, CloudWatch.
• Implement CI/CD pipelines using AWS Code Pipeline, Jenkins, GitHub Actions, or similar.
• Ensure application availability, fault tolerance, and security in AWS.

Front-End Development (React.js)

• Develop responsive and dynamic user interfaces using React.js, Redux, JavaScript/TypeScript, HTML, CSS.
• Integrate front-end applications with backend APIs.
• Ensure UI/UX best practices and optimize front-end performance.

Architecture & Leadership

• Participate in system design discussions and define technical architecture.
• Review code, enforce best practices, and guide development teams.
• Collaborate with product owners, QA engineers, UI/UX teams, and stakeholders to deliver quality solutions.

Required Skills & Qualifications

• 9+ years of hands-on experience in Java (Java 8+ preferred).
• Strong expertise in Spring Framework / Spring Boot, Microservices.
• Hands-on experience in AWS cloud architecture & services.
• Proficiency in React.js, Redux, JavaScript/TypeScript.
• Strong knowledge of REST APIs, JSON, OAuth2, JWT, and security standards.
• Experience with CI/CD pipelines, Docker, Kubernetes is a plus.
• Strong understanding of SQL/NoSQL databases.
• Excellent problem-solving skills, debugging skills, and understanding of distributed systems.