Java Principal Engineer - Real-Time, Scalable Payments

DynPro Inc.; Ohio; On-site; USD 120,000 - 150,000; Full time

Job summary

A leading technology firm is seeking a Principal Engineer to lead the design of a next-generation embedded payments platform. The role requires expertise in Java and Spring Boot, with responsibilities including optimizing systems for high throughput and mentoring engineering teams. The ideal candidate has a strong background in event-driven technologies and AWS deployment. This position is located in Ohio and offers the opportunity to drive architectural decisions and complex engineering initiatives.

Qualifications

• Expert-level knowledge of Java 17, multithreading, and performance tuning.
• Experience with enterprise-grade microservices using Spring Boot.
• Strong understanding of event-driven architecture with Kafka.

Responsibilities

• Lead the design and architecture of distributed, fault-tolerant systems.
• Optimize systems for concurrency, performance, and memory efficiency.
• Guide teams in best practices for system design and reliability.

Skills

Java 17

Spring Boot

Kafka

AWS (ECS, RDS, ElastiCache/Redis)

Terraform

SQL

Testing

Observability

Job description

A leading technology firm is seeking a Principal Engineer to lead the design of a next-generation embedded payments platform. The role requires expertise in Java and Spring Boot, with responsibilities including optimizing systems for high throughput and mentoring engineering teams. The ideal candidate has a strong background in event-driven technologies and AWS deployment. This position is located in Ohio and offers the opportunity to drive architectural decisions and complex engineering initiatives.