CrawlJobs Logo
KOR Financial Logo KOR Financial · IT - Software Development

Sr Back End Engineer for Streaming Data Platform

Romania · Job Posted May 03, 2026
Apply Position
Job Link Share

Job Description

We are a VC-backed fintech with a live product in the regulatory trade reporting space and a growing list of institutional clients (B2B). Our product journey has started in the US with a roadmap into Canada, UK, EU, Australia, and Singapore over the next twelve months. We are a start-up on a fast paced journey to scale-up. KOR is built on leading edge cloud technology by industry domain experts and world class in-house engineering. We're on a mission to innovate B2B trade servicing starting with regulatory reporting in time for a global wave of mandated changes hitting all segments of market participants across OTC derivatives transactions. We're solving the most challenging problems around by bringing fresh designs and solutions to data utility, quality, and processing inefficiencies... while unlocking insane value for clients.

Job Responsibility

  • 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers

Requirements

  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka, Kafka Streams processor API (not high-level DSL), DataBricks, EMR, DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
  • A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
  • Knowledge of OOP principles and modern development practices

Nice to have

  • 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, or similar through experience

What we offer

  • Working directly with seasoned international engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple
  • Culture of trust, kindness, empowerment, and constructive feedback
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
KOR Financial - All Job Offers

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Suggested Tags: Frontend Developer Secretary Talent Manager Salesforce Administrator Data Analyst
Similar Jobs for

Sr Back End Engineer for Streaming Data Platform

8 matching positions

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Portugal
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8.5+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka
  • Kafka Streams processor API (not high-level DSL)
  • DataBricks
  • EMR
  • DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
Job Responsibility
Job Responsibility
  • 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
  • Being 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Working directly with seasoned international engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple
  • Culture of trust, kindness, empowerment, and constructive feedback
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
  • Fulltime
Read More
Arrow Right

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Poland
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka, Kafka Streams processor API (not high-level DSL), DataBricks, EMR, DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
  • A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
  • Knowledge of OOP principles and modern development practices
Job Responsibility
Job Responsibility
  • 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
  • Being 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Working directly with seasoned international engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple
  • Culture of trust, kindness, empowerment, and constructive feedback
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
  • Fulltime
Read More
Arrow Right

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Poland
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka
  • Kafka Streams processor API (not high-level DSL)
  • DataBricks
  • EMR
  • DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
Job Responsibility
Job Responsibility
  • 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Working directly with seasoned international engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple
  • Culture of trust, kindness, empowerment, and constructive feedback
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
Read More
Arrow Right

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Romania
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka, Kafka Streams processor API (not high-level DSL), DataBricks, EMR, DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
  • A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
  • Knowledge of OOP principles and modern development practices
Job Responsibility
Job Responsibility
  • 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
Read More
Arrow Right

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Lithuania
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka
  • Kafka Streams processor API (not high-level DSL)
  • DataBricks
  • EMR
  • DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
Job Responsibility
Job Responsibility
  • 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 we continue to grow and adjust priorities
  • Using Claude Code and other AI tools responsibly to boost productivity
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Competitive salary
  • great IT equipment
  • expense allowance
  • Flexible working times
  • Fully remote, with fun social activities and gatherings
  • A span of control that matches your ambitions and skills
  • Culture of trust, kindness, empowerment, and constructive feedback
  • Working directly with seasoned international engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple
Read More
Arrow Right

Sr Back End Engineer for Streaming Data Platform

Do you want to build a high-quality data platform that will innovate financial m...
Location
Location
Salary
Salary:
Not provided
korfinancial.com Logo
KOR Financial
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A minimum of 8+ years of experience as a Back End Engineer
  • Experience with Java and Spring Boot
  • Experience with building and running applications on public cloud vendors like AWS
  • Working experience with one or more of the following technologies: Kafka, Kafka Streams processor API (not high-level DSL), Flink, DataBricks, EMR, DeltaFlow
  • Experience profiling, debugging, and performance tuning complex distributed systems
  • Willingness to closely collaborate by pairing
  • A firm reliance on unit testing and mocking frameworks with a TDD (Test Driven Development) mindset
  • Knowledge of OOP principles and modern development practices
Job Responsibility
Job Responsibility
  • 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 we continue to grow and adjust priorities
  • Paired programming with a growing team of Back-end, Data, and Front-end Engineers
What we offer
What we offer
  • Culture of trust, empowerment, and constructive feedback
  • Competitive salary, great IT equipment, and expense allowance
  • Flexible working times
  • A span of control that matches your ambitions and skills
  • Commitment to a genuine, balanced relationship
  • We will listen to you, take your needs and wishes seriously, and work to help you grow professionally
Read More
Arrow Right
New

IT Training Lead

The IT Training Lead will drive technology learning and user adoption across the...
Location
Location
United States , Delray Beach
Salary
Salary:
Not provided
https://www.roberthalf.com Logo
Robert Half
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience in IT training, instructional design, technical enablement, or learning and development
  • Strong knowledge of Microsoft 365
  • Excellent communication, facilitation, and content development skills
  • Ability to translate technical concepts into practical, user-friendly training.
Job Responsibility
Job Responsibility
  • Design, develop, and deliver IT training programs in instructor-led, virtual, and self-paced formats
  • Take lead in the Microsoft Copilot and AI training strategy, including onboarding, advanced use cases, responsible AI usage, and ongoing enablement
  • Partner with IT leadership to support new technology rollouts, system upgrades, and digital transformation initiatives
  • Create and maintain training content, including videos, guides, tutorials, and job aids
  • Identify skill gaps and develop targeted learning solutions to improve adoption and productivity
  • Gather feedback and measure training effectiveness to continuously improve programs.
Read More
Arrow Right
New

K Kitchen Representative

The position includes, but is not limited to, the following essential job duties...
Location
Location
United States , New Albany
Salary
Salary:
Not provided
https://www.circlek.com Logo
Circle K
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Excellent communication skills
  • Team player who can work well with others or independently
  • Acts with integrity
  • keeps commitments
  • Contagious positive attitude
  • Focuses on achieving results while having fun
  • Frequently bend, twist at waist, kneel, squat, stand, and walk
  • Occasionally climb and descend ladders
  • Tolerate extreme cold and hot temperatures and work in and around fryers, ovens, grills, coolers, freezers, sharp objects, and loud noises
  • Reach, grasp, and manipulate objects with hands for entire shift, including reaching for objects overhead
Job Responsibility
Job Responsibility
  • Provides excellent guest service in a fast and friendly manner
  • Maintains a clean restaurant environment by cleaning and performing general housekeeping duties
  • Prepares and serves food items in accordance with all Brand, Company, and health department regulations
  • Ensures product quality, food safety, and operational standards are met
  • Keeps accurate cash, sales, and inventory control records
  • Follows all government laws and safety codes
  • Completes reports on all incidents following our 5-minute rule policy
  • Lives our Company values: One Team, Do the Right Thing, Takes Ownership, Play to Win
What we offer
What we offer
  • Medical, Dental, Vision, Term Life and AD&D plans
  • Flexible spending and health savings accounts (FT)
  • Vacation paid time off
  • Company holidays paid at time and a half
  • Matching 401(k)
  • Tuition Reimbursement
  • Stock Purchase Plan
  • Employee Discount Program
  • Discount Meal Benefit
  • Wellness Plan
Read More
Arrow Right