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Lead Java Engineer - Financial Trading Applications

https://www.citi.com/ Logo

Citi

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Location:
United States , Jersey City

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

142320.00 - 213480.00 USD / Year
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Job Description:

This role is for a hands-on, back-end Java Software Engineer focused on modernizing a back-office trading application. The ideal candidate will drive technology transformation by implementing best-in-class engineering standards, including trunk-based development, test automation, and secure coding practices. You will be instrumental in designing and building scalable, high-performance, and resilient systems in a fast-paced, agile environment.

Job Responsibility:

  • Design, develop, and maintain robust, scalable, and high-performance applications for a back-office trading environment
  • Actively contribute to hands-on coding using languages like Kotlin, Java, and Python, while performing code reviews and refactoring to maintain high engineering standards
  • Develop clean, maintainable, and testable code following SOLID principles and modern software design best practices
  • Partner with architects, product owners, and cross-functional teams to design and implement scalable, distributed, and event-driven systems
  • Lead technical discussions, contribute to design documentation, and provide guidance on modern software architectures
  • Drive the adoption of modern engineering practices, including Agile, DevOps, and CI/CD, fostering a culture of continuous delivery and improvement
  • Implement trunk-based development, feature flags, and progressive delivery strategies to enable continuous integration and rapid, reliable releases
  • Apply a test-automation-first mindset, utilizing Test-Driven Development (TDD) and Behavior-Driven Development (BDD) to ensure high unit test coverage and code quality
  • Collaborate closely with DevOps teams to optimize deployments, enhance observability, and ensure production resilience through continuous monitoring
  • Implement and enforce secure coding practices, conduct vulnerability assessments, and ensure compliance with security standards
  • Mentor junior engineers and foster a culture of engineering excellence and continuous learning within the team

Requirements:

  • 6+ years' experience with hands-on coding experience in Kotlin, Java, or Python
  • Deep expertise in system design, microservices architecture, and building low-latency, high-performance, and fault-tolerant applications
  • Proven experience with event-driven and messaging systems, such as Kafka, Solace, Tibco, or MQ
  • Proficiency with Spring Boot for application development and OpenShift or Kubernetes for container orchestration
  • Strong experience with relational databases (e.g., Oracle) and SQL
  • Demonstrated experience with trunk-based development, feature flags, and progressive delivery strategies
  • Proficiency in applying Test-Driven Development (TDD), Behavior-Driven Development (BDD), and maintaining high test coverage
  • Strong understanding of CI/CD pipelines, DevOps principles, and infrastructure as code
  • Experience conducting thorough code reviews, performing vulnerability assessments, and applying secure coding practices
  • Knowledge of performance tuning, observability (logging and monitoring), and ensuring production stability
  • Familiarity with Agile frameworks and experience working in a fast-paced, collaborative product development environment
  • Excellent problem-solving, communication, and collaboration skills
  • Bachelor’s in Computer Science, Software Engineering, or related technical field, or industry equivalent experience required
  • Master’s degree preferred
What we offer:
  • medical, dental & vision coverage
  • 401(k)
  • life, accident, and disability insurance
  • wellness programs
  • paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays
  • discretionary and formulaic incentive and retention awards

Additional Information:

Job Posted:
March 04, 2026

Expiration:
March 05, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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