Senior Software Engineer — Payments Platform & Architecture

RiseMe; Dallas (TX); On-site; USD 140,000 - 180,000; Full time

Job summary

Kunai is building a high-impact digital payments modernization program in the United States. You will join as a Senior Software Engineer, contributing to both reliable legacy systems and modern architectures. Expect work across domain-driven design, Java backend services with Spring Boot/JPA on PostgreSQL Aurora, and an event-driven Kafka layer.

You will shape integration workflows with Camel, manage containerized deployments on OpenShift/Kubernetes, and own identity flows using Okta.

Qualifications

• 5+ years of professional software engineering experience, primarily in Java.
• Strong working knowledge of relational databases - Oracle and/or PostgreSQL; PostgreSQL Aurora a strong plus.
• Experience deploying and operating services in containerized environments (OpenShift, Kubernetes).
• Familiarity with legacy enterprise app servers - Tomcat and WebSphere preferred.
• Experience with Spring Boot/JPA, business rules engines (Drools), and integration/orchestration frameworks (Apache Camel).
• Working knowledge of Kafka or similar event-streaming platforms and dataflow design.
• Experience owning authorization/data-access design and OAuth2/OIDC flows (Okta).

Responsibilities

• Apply domain-driven design to define bounded contexts and domain models.
• Develop a Spring Boot / JPA / PostgreSQL Aurora service with Liquibase migrations and a rules engine.
• Design and own integration workflows using Apache Camel for multi-step pipelines.
• Develop an event-driven backbone with Kafka and integrate with rules and workflow layers.
• Own OAuth2/OIDC identity architecture, provider integration (Okta), token validation, and session design.

Skills

Java

Spring Boot/JPA

PostgreSQL

OpenShift/Kubernetes

Kafka

Apache Camel

Liquibase

Drools

WebSphere

Tomcat

Tools

PostgreSQL Aurora

Liquibase

Apache Camel

Kafka

Drools

Okta

OpenShift

Kubernetes

Tomcat

WebSphere

Job description

Kunai is building a high-impact digital payments modernization program in the United States. You will join as a Senior Software Engineer, contributing to both reliable legacy systems and modern architectures. Expect work across domain-driven design, Java backend services with Spring Boot/JPA on PostgreSQL Aurora, and an event-driven Kafka layer.

You will shape integration workflows with Camel, manage containerized deployments on OpenShift/Kubernetes, and own identity flows using Okta.