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KOR Financial logo
KOR Financial

An Upgraded Trade Repository. Built Fundamentally Better.

Backend Engineer – Validator Engine Specialist

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50H1B No SponsorCompany SiteLinkedIn

Location

Poland

Posted

123 days ago

Salary

0

Seniority

Senior

Bachelor Degree3 yrs expEnglishJavaSpringSpring Boot

Job Description

Backend Engineer – Validator Engine Specialist

KOR Financial

• Configuring and maintaining the validator engine to meet jurisdictional requirements. • Extending the rules engine (written in Java) to support new use cases. • Implementing, debugging, and refining JSON-based DSL rules for accuracy and compliance. • Using Claude Code and other AI tools responsibly to boost productivity. • Collaborating with other team members to support ten jurisdictions. • Ensuring thorough testing and validation of all configurations.

Job Requirements

  • Bachelor's Degree or higher in Engineering, Computer Science, or Information Technology.
  • A minimum of 3+ years of experience as a Backend Engineer.
  • Experienced with Java and Spring Boot Framework , and eager to learn quickly under mentorship.
  • Demonstrating a firm reliance on unit testing and mocking frameworks.
  • Residing in or near the CET time zone (including Eastern Europe).
  • Passionate for delivering high-quality, maintainable code.
  • Excellent communicators with strong English skills.
  • Detail-oriented perfectionists who take pride in covering all their bases.
  • Energized by solving repetitive, complex problems systematically.
  • Open to coaching by senior engineers with deep experience.
  • Self-motivated and take ownership of their work.
  • While prior experience with DSLs or regulatory systems is a plus, it’s not required.

Benefits

  • Mentorship by senior engineers with experience at companies like Pivotal (including ex-Spring team members), VMware, Confluent (including Kafka committers), and Apple.
  • The chance to join a rapidly growing team with the opportunity to move into the broader engineering organization.
  • A collaborative, remote-friendly environment.
  • Culture of trust, kindness, empowerment, and constructive feedback.
  • Competitive salary, great IT equipment, and expense allowance.
  • Flexible working times.
  • Fully Remote.
  • A span of control that matches your ambitions and skills.

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