Kunai
Senior Software Engineer (Java)
Remote role where the employee must remain based in a particular country.
United States only
Employer listed it 5 weeks ago · Added yesterday
Been open since 5 weeks ago, still being checked, but it has been live a while.
Salary
Not stated
Location
United States only
Timezone
US East
Contract
Full-time
Experience
Senior
Category
Software
This employer didn't state pay. Jobs like this usually pay around $180k–$230k a year, a typical range taken from 596 senior-level software roles on Nomaders that do state pay. It's a guide, not an offer.
Remote flexibility
Work from home
This is a remote role, but the employee must be based in United States. It is work from home rather than work from anywhere.
What the employer says
- Source listing states candidate location: "Remote - United States, Remote US"
What Nomaders makes of it
- Residency required in United States
- Payroll and tax are likely handled in that country only
The quotes above are the employer's own words; the reading is ours. Always check the original listing and employment terms before working from another country.
About the role
Kunai builds full-stack technology solutions for banks, credit and payment networks, infrastructure providers, and their customers. Together, we are changing the world’s relationship with financial services. At Kunai, we help our clients modernize, capitalize on emerging trends, and evolve their business for the coming decades by remaining tech-agnostic and human-centered.
We are seeking a Senior Software Engineer to join a high-impact digital payments modernization program supporting the integration of a major card network into one of the largest financial institutions in the United States. This is a hands-on engineering role at the intersection of legacy and modern infrastructure, where you will contribute to both the reliability of mission-critical payment systems today and help shape the architecture that will power them tomorrow. You will work across scalable backend services, performance testing frameworks, and application engineering — with real opportunity to grow your skills on modern cloud-native technologies as the program evolves.
WHAT YOU'LL DO
You will be embedded across one or more workstreams supporting digital payments engineering, with responsibilities that may include:
Scalability, Performance Testing & Validation
Design and execute enterprise-grade performance testing strategies for payment processing services, defining frameworks, tooling, and success criteria from the ground up.
Identify performance bottlenecks across legacy and modern service layers and drive measurable improvements through analysis and targeted optimization.
Instrument and validate services running on Java, Oracle, Tomcat, and WebSphere as well as modern workloads running on PostgreSQL and OpenShift.
Collaborate with backend engineers to ensure scalability requirements are met across all environments prior to release.
Translate performance findings into clear recommendations for engineering leads and stakeholders.
Application Engineering
Build and maintain full-stack backend services supporting card network integration, working primarily in Java with PostgreSQL and OpenShift Container Platform (OCP).
Contribute to application modernization efforts, migrating and re-platforming services from legacy infrastructure to cloud-native environments.
Leverage AI-assisted development tooling (including GitHub Copilot) to improve development velocity and code quality.
Participate in code reviews, architectural discussions, and cross-team technical planning sessions.
General Engineering
PCI data purging pipelines and event-driven architecture patterns including token removal and event consumption.
Work with event-driven services running on OpenShift and Oracle and PostgreSQL backends to support data lifecycle and compliance requirements.
Serve as a flexible, senior contributor across teams where engineering depth and experience are needed most.
REQUIRED SKILLS & EXPERIENCE
Core Engineering
5+ years of professional software engineering experience, primarily in Java.
Strong working knowledge of relational databases — Oracle and/or PostgreSQL required.
Experience deploying and operating services in containerized environments (OpenShift, Kubernetes, or equivalent).
Requirements
- ·Core Engineering
- ·5+ years of professional software engineering experience, primarily in Java.
- ·Strong working knowledge of relational databases — Oracle and/or PostgreSQL required.
- ·Experience deploying and operating services in containerized environments (OpenShift, Kubernetes, or equivalent).
- ·Familiarity with legacy enterprise application servers — Tomcat and/or WebSphere experience a plus.
Benefits
No benefits package published with this listing. Ask about it at first interview.
How to apply
- 1Check the flexibility label above, work from home, matches where you plan to live and work.
- 2Tailor your CV to the role at Kunai, mentioning your remote working experience and working hours (US East).
- 3Apply directly on the employer's careers page using the button below. Nomaders never handles your application.
Found 1d ago. Last checked 23 Sept. Always confirm the details on the original posting, salary and location can change after publication.
Listing sourced from Company boards.
Similar roles
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Free to apply, no account needed.
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