Java Developer (Backend / Full-Stack)

Capital Minds; United States; Remote; USD 110,000 - 160,000; Full time

Job summary

Capital Minds in the United States is seeking a talented Java Developer to join our engineering team. You will contribute to the full software lifecycle, delivering scalable enterprise applications using Java 11+ and Spring Boot, and crafting robust RESTful APIs in a microservices and cloud-native environment.

You will collaborate with product managers, frontend developers, QA, and DevOps to ship features end-to-end, write clean and well-documented code, participate in code reviews and testing,

Qualifications

• 4+ years of production-grade Java development experience.
• Strong Spring Boot and Spring Framework background.
• Solid RESTful API design and microservices experience.
• SQL proficiency with PostgreSQL/MySQL; experience with Oracle optional.
• Git version control; familiarity with CI/CD and test tooling.
• Ability to work in an Agile environment and communicate effectively.

Responsibilities

• Design, develop, test, and maintain backend services and APIs using Java and Spring Boot.
• Build and integrate RESTful / GraphQL APIs and microservices.
• Collaborate with product managers, frontend, QA, and DevOps to deliver features end-to-end.
• Write clean, maintainable, and well-documented code; participate in code reviews.
• Perform unit/integration testing and contribute to Agile ceremonies.
• Optimize performance and reliability; work with relational and NoSQL stores as needed.

Skills

Java

Spring Boot

REST API

Microservices

SQL

Git

JUnit

Agile

Tools

Docker

Kubernetes

CI/CD

GitHub

Job description

Visa Sponsorship: Not available at this time – US Citizens, Green Card holders, or existing work authorization only

About the Role

We are seeking a talented and motivated Java Developer to join our engineering team and help build scalable, high-performance enterprise applications. You will contribute to the full software development lifecycle, from design and implementation to testing and deployment, working on mission-critical systems that serve millions of users.

This is an excellent opportunity for someone who enjoys modern Java development, microservices architecture, and cloud-native practices.

Key Responsibilities

• Design, develop, test, and maintain robust backend services and APIs using Java and Spring Boot
• Build and integrate RESTful / GraphQL APIs and microservices
• Collaborate with product managers, frontend developers, QA, and DevOps to deliver features end-to-end
• Write clean, maintainable, and well-documented code following best practices
• Perform code reviews, unit/integration testing, and participate in Agile ceremonies (stand-ups, sprint planning, retros)
• Optimize application performance, troubleshoot issues, and improve system reliability
• Work with relational databases (PostgreSQL / MySQL) and NoSQL stores when needed
• Participate in on-call rotation (as needed for production systems)

Required Qualifications

• 4+ years of professional experience developing production-grade applications with Java (Java 11+ preferred, Java 17/21 a big plus)
• Strong hands-on experience with Spring Boot, Spring Framework (including Spring Security, Spring Data, Spring Cloud)
• Solid understanding of RESTful API design, microservices architecture, and API security patterns
• Proficiency with SQL and experience working with relational databases (PostgreSQL, MySQL, Oracle, etc.)
• Experience with version control using Git (GitHub / GitLab / Bitbucket) and branching strategies
• Familiarity with unit and integration testing (JUnit, Mockito, Testcontainers, etc.)
• Understanding of Agile / Scrum methodologies
• Excellent problem-solving skills and attention to detail
• Strong written and verbal English communication
• Must be authorized to work in the United States without sponsorship (US Citizen, Permanent Resident / Green Card, or existing valid work authorization)

Highly Desirable (Big Plus)

• Experience with cloud platforms (AWS, Azure, or GCP – especially containers, Kubernetes, or serverless)
• Knowledge of Docker, Kubernetes, CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI)
• Frontend experience (React, Angular, Vue, or basic HTML/CSS/JS) – for full-stack roles
• Experience with message queues (Kafka, RabbitMQ) or event-driven architecture
• Familiarity with monitoring tools (Prometheus, Grafana, ELK stack)
• Exposure to reactive programming (Project Reactor, RxJava) or modern Java features

Nice to Have

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience)
• Certifications: Oracle Certified Professional Java SE, Spring Professional, AWS Certified Developer, etc.
• Experience in fintech, healthcare, e-commerce, or SaaS environments

We are an equal opportunity employer and value diversity. All qualified applicants will receive consideration regardless of race, color, religion, sex, national origin, age, disability, veteran status, or any other characteristic protected by law.