Responsibilities
- Design and execute enterprise-grade performance-testing strategies, frameworks, tooling, and success criteria for payment-processing services.
- Identify performance bottlenecks across legacy and modern service layers and drive targeted optimization.
- Instrument and validate services running on Java, Oracle, Tomcat, WebSphere, PostgreSQL, and OpenShift.
- Build and maintain backend services for card-network integration using Java, PostgreSQL, and OpenShift Container Platform.
- Modernize, migrate, and re-platform services from legacy infrastructure to cloud-native environments.
- Develop PCI data-purging pipelines and event-driven services supporting token removal, event consumption, data lifecycle, and compliance requirements.
- Participate in code reviews, architectural discussions, technical planning, and communication of performance findings to stakeholders.
- Serve as a flexible senior contributor across engineering workstreams.
Requirements
- At least 5 years of professional software engineering experience, primarily in Java, is required.
- Strong knowledge of relational databases, specifically Oracle and/or PostgreSQL, is required.
- Experience deploying and operating services in containerized environments such as OpenShift or Kubernetes is required.
- Experience with enterprise performance testing strategy, tooling selection, execution, profiling, load testing, and bottleneck resolution is required.
- Experience designing performance test frameworks from scratch and operating with minimal guidance is required.
- Digital payments, card processing, or financial-services technology experience is strongly preferred.
- Knowledge of PCI compliance, secure data handling, event-driven architecture, and OpenShift-based eventing is preferred.
- Experience with PGLogical or PostgreSQL logical replication, GitHub Copilot or Claude, bank or card-network integrations, or segregated development environments is a plus.
- A bachelor’s degree is required, with specified specialized training or progressively responsible technology experience accepted in lieu of missing college years.
- Strong communication and collaboration skills in large, matrixed program environments are required.
Benefits
- Competitive compensation is offered.
- Professional development opportunities are provided.
- Flexible work arrangements are available.
- The role offers a collaborative culture with continuous learning and opportunities for professional growth.
Tech Stack
About Kunai
Kunai is now part of the PwC network: https://www.pwc.com/us/en/about-us/newsroom/press-releases/kunai.html ----- Kunai was born from experience. Our people hail from the biggest names in banking, fintech and financial services. We spent a lot of time at those companies working with external consultants and wishing for a different kind of agency partner. So, we built it. Trusted By: - 4x largest card networks in the world - 5x of the top ten U.S. banks - 6x of the world's largest fintechs Why Kunai: Kunai builds full-stack technology solutions for the world’s largest banks, credit and payment networks, infrastructure providers and their customers. We help our clients modernize, capitalize on emerging trends, and evolve their business for the coming decade. Expertise: - Product Development: Transforming innovative ideas into market-ready financial products - AI & Automation: Harnessing the power of AI to revolutionize financial services - Cloud Engineering: Modernize infrastructure while leveraging the latest insights in data, AI and automation - Data Engineering: Structuring data for success in an AI-driven world Contact Us: - Sales: sales@kunaico.com - Press: press@kunaico.com - Delivery: delivery@kunaico.com - Careers: career@kunaico.com