Senior AWS Java Full Stack Developer

Job Title: Senior AWS Java Full Stack Developer 
Duration: Full Time / Permanent Position    
Location: Lafayette, LA | Knoxville, TN | Birmingham, AL | Columbia, SC | Plano, TX
Work Mode:  5 Days Onsite  
Position Description
Systemone is seeking a Senior AWS Java Full Stack Developer to lead the development and support of cloud-based applications in an AWS-focused financial services environment.
This role combines advanced hands-on development with technical leadership across Java, Spring Boot microservices, Angular, and AWS.
Your Future Duties and Responsibilities

• Make component-level technical decisions and build secure, scalable services.
• Improve application performance, reliability, and operational readiness.
• Guide implementation teams and align development with enterprise standards.
• Strengthen automated testing and software delivery practices.
• Resolve complex issues across services and distributed applications.
• Mentor developers and provide technical guidance.
• Evaluate technical trade-offs and document implementation decisions.

• Java: 8+ years of advanced Java experience, including collections, streams, exception handling, JVM concepts, multithreading, concurrency, functional programming, and reactive programming. Familiarity with Java 8, 17, and 21 features.
• Spring Boot and Microservices: Strong experience with REST APIs, dependency injection, input validation, centralized exception handling, configuration management, and Actuator.
• Application Security: Hands-on experience with Spring Security, JWT authentication, JPA/Hibernate, and transaction management.
• Microservices Architecture: Ability to define service boundaries and implement resilient, scalable services using circuit breakers, distributed transaction patterns, and production monitoring.
• Angular: Strong skills in component structure, services, RxJS, state management, routing, API integration, and UI performance optimization.
• AWS Cloud Services: Hands-on experience with EC2, S3, RDS, Lambda, API Gateway, SNS, SQS, IAM, ECS, Auto Scaling, CloudWatch, and networking fundamentals.
• Serverless and Event-Driven Applications: Experience implementing solutions with a focus on availability, security, operational readiness, and cloud costs.
• Technical Leadership: Ability to lead component and service implementation, evaluate technical trade-offs, document implementation decisions, and mentor developers.

• Apache Kafka: Producers, consumers, topics, consumer groups, event streaming, error handling, and performance tuning.
• Docker and Kubernetes: Container optimization, deployments, scaling, and troubleshooting.
• CI/CD and DevOps: Git, GitHub Actions, Jenkins, or Azure DevOps, including build automation, CI/CD pipelines, and release practices.
• API Integration: OpenAPI/Swagger, authentication, authorization, versioning, and API contracts.
• UI Test Automation: Playwright and LambdaTest for reusable UI automation, regression testing, cross-browser execution, and troubleshooting unreliable tests.
• AI Development Tools: GitHub Copilot or similar tools, including guidance on generated-code reviews, test coverage, and security.
• Problem-Solving and Collaboration: Strong root-cause analysis, stakeholder communication, Agile collaboration, and ownership of delivery risks.

Educational Requirements
Bachelor's degree in Computer Science, Information Systems, or a related field.