Principal Full Stack Engineer - ONSITE

Piper Companies is hiring a Principal Full Stack Engineer (ONSITE) for a large financial institution located in Merrimack, NH. The Principal Full Stack Engineer (ONSITE) will help to reimage the companies operations through a comprehensive migration to cloud-native infrastructure. The Principal Full Stack Engineer (ONSITE) will be a long term contract opportunity and the candidate will need to sit on site in Merrimack, NH 2 weeks per month.

Responsibilities for the Principal Full Stack Engineer (ONSITE):

• Build robust, scalable, and maintainable applications using Java and Spring/Spring Boot
• Develop cloud-native microservices on AWS leveraging EKS/ECS, S3, and CloudWatch
• Design and implement modernization pipelines to bridge data and workflows from Mainframe systems to AWS
• Create and maintain Kafka listeners and event-streaming solutions for data ingestion into CockroachDB
• Apply infrastructure-as-code principles using Terraform or CloudFormation
• Deliver end-to-end solutions including automated testing and CI/CD integration

Requirements for the Principal Full Stack Engineer (ONSITE:

• 7+ years of hands-on Java development with strong understanding of OOP principles, collections, and multithreading
• Proficiency in Spring and Spring Boot frameworks
• Solid cloud experience, particularly AWS services like EKS, ECS, S3, and CloudWatch
• Experience with event-driven architectures and Apache Kafka
• Familiarity with CockroachDB a plus
• Infrastructure as Code (IaC) experience—Terraform preferred, CloudFormation acceptable
• Understanding of test automation and CI/CD pipelines

Compensation for the Principal Full Stack Engineer (ONSITE):

• $60.00 - $75.00 per hour
• Full Comprehensive Benefits: Health, Vision, Dental, PTO, Paid Holiday and Sick Leave if Required by Law

Keywords: Java, Spring, Spring Boot, OOP, Collections, Multithreading, AWS, EKS, ECS, S3, CloudWatch, Terraform, CloudFormation, Kafka, Kafka listeners, CockroachDB, Cloud APIs, API development, Microservices, CI/CD, Test Automation, Modernization, Infrastructure as Code, Mainframe migration, Data pipeline, End-to-end development, Agile, Source control, Code reviews, Engineering practices, Platform modernization

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This job opens for applications on 7/8/2025. Applications for this job will be accepted for at least 30 days from the posting date.