RemoteLeaf Logo
Log in Sign up

Senior Software Engineer

1 month, 2 weeks ago
United States
Full-time
Senior
Software Engineer
Software Development
Java Kubernetes OpenShift Oracle PostgreSQL
Apply Now
Kunai

Kunai

Kunai is a leading digital product development consultancy for fintech, delivering innovative solutions trusted by Fortune 500 companies and startups worldwide.

Professional Services
51-250
Founded 2001
View All Jobs 3

Description

  • Design and execute enterprise-grade performance testing strategies for payment processing services, including frameworks, tooling, and success criteria.
  • Identify bottlenecks across legacy and modern service layers and drive performance improvements through analysis and optimization.
  • Instrument and validate services running on Java, Oracle, Tomcat, WebSphere, PostgreSQL, and OpenShift.
  • Collaborate with backend engineers to ensure scalability requirements are met before release.
  • Translate performance findings into clear recommendations for engineering leads and stakeholders.
  • Build and maintain backend services supporting card network integration, primarily in Java, PostgreSQL, and OpenShift Container Platform.
  • Contribute to application modernization by migrating and re-platforming services from legacy infrastructure to cloud-native environments.
  • Participate in code reviews, architectural discussions, and cross-team technical planning sessions.
  • Work on PCI data purging pipelines and event-driven architecture patterns, including token removal and event consumption.
  • Serve as a flexible senior contributor across teams where engineering depth and experience are needed most.

Requirements

  • 5+ years of professional software engineering experience, primarily in Java.
  • Strong working knowledge of relational databases, with Oracle and/or PostgreSQL required.
  • Experience deploying and operating services in containerized environments such as OpenShift, Kubernetes, or equivalent.
  • At least one enterprise-level performance testing engagement, including strategy definition, tool selection, execution, and presentation of findings.
  • Experience with performance profiling, load testing, and bottleneck resolution in high-throughput distributed systems.
  • Ability to design streamlined test frameworks from scratch and operate with minimal guidance.
  • Background in digital payments, card processing, or financial services technology is strongly preferred.
  • Understanding of PCI compliance requirements and secure data handling practices.
  • Demonstrated ability to work effectively in large, matrixed program environments with multiple teams and stakeholders.
  • Strong written and verbal communication skills, with the ability to translate technical complexity for non-technical audiences.
  • Familiarity with legacy enterprise application servers such as Tomcat and/or WebSphere is a plus.
  • Experience with PGLogical or PostgreSQL logical replication is a plus.
  • Exposure to AI-assisted development tools such as GitHub Copilot or Claude is a plus.
  • Prior work on bank or card network integration programs is a plus.
  • Experience working in segregated or air-gapped development environments is a plus.
  • Bachelor’s degree is required, or equivalent specialized training and progressively responsible technology work experience in lieu of a degree.

Benefits

  • Competitive compensation.
  • Professional development opportunities.
  • Flexible work arrangements.
  • A collaborative culture that values creativity and continuous learning.
  • An environment where employees feel valued and have a voice.
  • Opportunities to grow personally and professionally.
  • Support for innovation in the fintech industry.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Pinterest

Senior Software Engineer

Pinterest 1K-5K Internet Software & Services

Pinterest is hiring a backend engineer to build and evolve large-scale, distributed systems that support user-facing applications and improve the end-to-end product experience.

United States Full-time Senior Software Engineer
$252k-$320k
Apache Airflow Apache Spark AWS C++ CI/CD Docker Elasticsearch Flink Grafana Java Kafka Kubernetes Memcached MySQL Node.js PostgreSQL Python Redis
14 hours ago
G

Senior Software Development Engineer

GoDaddy 5001-10000 Technology, Information and Internet

GoDaddy is hiring a remote Growth team engineer in Colombia to build and operate production AI agent systems and full-stack applications that support customers at scale.

Colombia Full-time Senior Software Engineer
AWS Azure CI/CD Docker Elasticsearch Go Kubernetes LLM Microservices MongoDB Node.js PostgreSQL Python React Redis SQL Vue.js
14 hours, 15 minutes ago
Scale AI

SWE Fellow - Human Frontier Collective (UK)

Scale AI 251-1K Diversified Consumer Services

The Human Frontier Collective Fellowship at Scale is a fully remote contract role supporting AI research by designing, evaluating, and interpreting advanced generative AI systems with interdisciplinary experts and partner labs.

United Kingdom Contract Senior AI (Artificial Intelligence) Software Engineer
C++ Generative AI Java JavaScript Machine Learning Python Rust Swift
14 hours, 15 minutes ago
Avo

Integrations Engineer

Avo 11-50 Internet Software & Services

Avo is hiring an Integrations Engineer to build and maintain hospital EHR integrations that power clinical AI workflows inside production healthcare environments.

United States Full-time Mid Level Software Engineer
$160k-$185k
AWS Azure Celery Django Docker GitHub Actions HIPAA JavaScript LLM PostgreSQL Python React Redis REST API Tailwind CSS Terraform TypeScript
14 hours, 30 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers