USA_Senior Engineer

Pay Rate Range

$ 45.45 - 49.24/hr.

Senior Java Full Stack Developer

Job Description​

We are seeking an experienced Senior Java Full Stack Developer with 8+ years of expertise in designing, developing, and implementing enterprise-scale web applications. The ideal candidate should possess strong backend development experience using Java, Spring Boot, Microservices, and frontend expertise with React.js. Experience with cloud platforms, REST APIs, database design, and Agile methodologies is highly preferred.

Key Responsibilities

Design, develop, and maintain scalable enterprise applications using Java/J2EE, Spring Boot, Spring MVC, Hibernate, and Microservices.

Develop and consume RESTful and SOAP web services.

Build responsive and interactive user interfaces using React.js, JavaScript, HTML5, CSS3, Redux, and TypeScript.

Develop secure APIs with JWT, OAuth2, Spring Security, and role-based access control.

Implement microservices architecture and support service discovery, API gateways, and distributed systems.

Design and optimize database solutions using Oracle, DB2, MongoDB, and SQL.

Write efficient SQL queries, stored procedures, functions, and triggers.

Develop scalable backend components leveraging Java Collections, Multithreading, Streams API, and Design Patterns.

Integrate messaging and event-driven systems using Kafka and asynchronous processing frameworks.

Deploy and manage applications on AWS Cloud using services such as EC2, S3, VPC, IAM, Route 53, ELB, and Auto Scaling.

Implement CI/CD pipelines using Jenkins, Maven, Gradle, Docker, and Git.

Perform unit, integration, and automated testing using JUnit, Mockito, Jest, React Testing Library, and Cypress.

Collaborate with cross-functional teams in an Agile/Scrum environment.

Required Skills

Backend Technologies

Java 8/11+

J2EE, Servlets, JSP

Spring Framework, Spring Boot, Spring MVC

Spring Data JPA, Hibernate

REST APIs, SOAP Web Services

Microservices Architecture

Frontend Technologies

React.js

JavaScript (ES6+)

HTML5, CSS3

Redux, React Router

AJAX, JSON

Database Technologies

Oracle

MongoDB

DB2

SQL, PL/SQL

Database Modeling and Optimization

Cloud & DevOps

AWS (EC2, S3, IAM, VPC, Route 53, ELB, Auto Scaling)

Docker

Jenkins

Terraform

GitHub/GitLab

Testing & Tools

JUnit

Mockito

Jest

Cypress

Maven

Gradle

IntelliJ IDEA

Eclipse

Preferred Qualifications

Experience with Kafka, Redis, Splunk, Prometheus, Grafana, and ELK Stack.

Knowledge of event-driven architecture and distributed systems.

Experience with large-scale enterprise applications in healthcare, retail, or e-commerce domains.

Strong analytical and problem-solving skills.

Excellent communication and teamwork abilities.

Nice to Have

Experience with Healthcare (Medicaid, Medicare, SNAP), or large enterprise transformation projects.

AWS certification or cloud-native development experience.

Design| develop and enhance Healthcare Payer Enrollment and Billing applications| including backend services| APIs| business components and integrations.

Develop scalable Java/Spring Boot microservices supporting enrollment| billing and related healthcare business processes.

Translate business requirements into reliable technical solutions and participate across design| coding| testing| deployment and production support.

Develop and optimize database components| APIs| event-driven integrations and batch-processing capabilities.

Troubleshoot application and production issues| perform root-cause analysis and implement sustainable fixes.

Ensure code quality through unit/integration testing| code reviews| security standards and CI/CD practices.

Collaborate closely with business| architecture| QA| DevOps and onshore/offshore development teams.

Managerial / Collaboration Skills Strong customer and stakeholder communication skills. Ability to work independently and provide technical guidance to development team members.

Experience working within Agile/Scrum delivery models| including sprint planning| refinement| reviews and retrospectives.

Ability to coordinate effectively across business| technical and onshore/offshore teams.

Essential Skills

8+ years of hands-on Java/J2EE development experience| with strong expertise in Java 8/11+| Spring Boot| Spring Framework and Microservices.

Mandatory hands-on development experience in Healthcare Payer Enrollment and Billing applications/processes.

Strong experience developing RESTful APIs| backend services and enterprise integrations.

Experience with Spring Data JPA| Hibernate| SQL and relational databases| preferably DB2/PostgreSQL.

Hands-on experience with Kafka or enterprise messaging technologies. Experience with CI/CD| Git| Jenkins/Azure DevOps| Maven/Gradle and automated testing using JUnit/Mockito. Good understanding of application security including OAuth2| JWT and Spring Security.

Skills

Agile Way of Working~Digital

DevOps~PostgreSQL~Digital

Kafka~Advanced Java Concepts~Digital

Microservices~Digital

Spring Boot~Healthcare Domain

Experience Required

8-10 years

Skills

Category

Name

Required

Importance

Experience

SkillCategoryTest1_MN

Advanced Java Concepts

Yes

1

>7 years

SkillCategoryTest1_MN

Agile Way of Working

Yes

1

>7 years

SkillCategoryTest1_MN

Digital

DevOps

Yes

1

>7 years

SkillCategoryTest1_MN

Digital

Kafka

Yes

1

>7 years

SkillCategoryTest1_MN

Digital

Microservices

Yes

1

>7 years

SkillCategoryTest1_MN

Digital

Spring Boot

Yes

1

>7 years

SkillCategoryTest1_MN

Healthcare Domain

Yes

1

>7 years

SkillCategoryTest1_MN

PostgreSQL

Yes

1

>7 years