Senior Backend Engineer, Streaming Data Platform

KOR Financial

full-time

Posted on: 9/24/2025

Origin: • 🇺🇸 United States • Illinois

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Senior

AWSCloudDistributed SystemsJavaKafkaKubernetesSpringSpring BootSpringBoot

About the role

Own parts of the KOR Platform and contribute to product development
Designing and implementing the streaming data platform engine and SDK
Implementing new features for our range of web and streaming applications and data reporting capabilities
Be an active voice in the platform's build-out in regards to the technical choices and implementations
Working closely with the broader team to embrace new challenges and adapt requirements as priorities change
Paired programming with a growing team of Back-end, Data, and Front-end Engineers
Collaborate with product managers, designers, and clients to deliver valuable working software quickly
Participate in agile practices and retrospectives to identify improvements

A minimum of 8+ years of experience as a Back End Engineer
Experience with Java and Spring Boot Framework
Experience with building and running applications on public cloud vendors like AWS
Working experience Kafka, DataBricks and Streaming data solutions
Experience profiling, debugging, and performance tuning complex distributed systems
A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
Knowledge of OOP principles and modern development practices
Plus to have: Experience with event data modeling in event store/sourcing systems
Experience with horizontally scalable and highly available system design and implementation, focusing on performance and resiliency
Bachelor's Degree or higher in Engineering, Computer Science, or Information Technology
Familiarity with main tools/frameworks: K8s, AWS, OSX (Mac), IntelliJ, Github (Actions), DataDog, Confluent Cloud, Argo CD
KOR is not in the position to provide work visa / sponsorship