Job Description

Location: Tampa, FL (Local/Nearby Candidates Preferred)
Employment Type: W2 Contract

Project Overview:

Join a global team enhancing and modernizing the Graphite Payment Platform , a high-performance system processing up to 30 billion dollars and over 2–3 million transactions per day . This platform supports routing payments from upstream systems with strict latency constraints (≤30 milliseconds) .

Role Responsibilities:

• Enhance and modernize an enterprise-scale payment routing platform.

• Develop robust backend solutions using Java 11/17 (upgrading to 21).

• Optimize and support transaction routing logic with ultra-low latency.

• Implement and manage containerized services on Kubernetes .

• Integrate and scale message-driven architectures using Kafka , MQ , etc.

• Collaborate with a global team to onboard new clients and support increased traffic.

• Maintain and improve database interactions (Oracle or CockroachDB).

• Participate in planning for a future cloud migration to AWS .

• Tackle complex technical problems with a strong focus on performance and reliability.

Must-Have Skills:

• Java (11/17, moving toward 21)

• Spring Framework

• Kubernetes

• Kafka or equivalent messaging systems

• Oracle or CockroachDB

Nice-to-Have Skills:

• NoSQL experience

• Test automation with JUnit , Cucumber

• Experience with cloud-native patterns or AWS

Tech Stack:

• Java 11 (migrating to 17/21)

• Spring Framework

• Kafka, MQ

• Oracle, CockroachDB

• Kubernetes (Gaia platform)

• Messaging & Routing systems

• Future move to AWS

Third-party recruiters, please do not reach out for this role.

Job Tags

Contract work, Local area,

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