Senior Software Engineer — Distributed Systems & Trading Infrastructure

We are seeking a highly skilled and hands-on Senior Back-end Java Developer - Trading Platforms to join our back-office trading application technology team, where you will play a pivotal role in designing, building, and sustaining scalable, high-performance software solutions. This position sits at the intersection of engineering excellence and financial technology transformation, requiring deep expertise in system design, microservices architecture, and modern delivery practices. The ideal candidate will champion trunk-based development, test automation, and secure coding as standard operating practices, contributing to a high-velocity, quality-first engineering culture. This is an opportunity to shape mission-critical trading infrastructure at a firm recognized among leading financial institutions for its commitment to technology modernization and engineering rigor.

Responsibilities

• Design, develop, and maintain robust, scalable, and high-performance back-office trading applications following SOLID principles, clean code standards, and modern software design patterns.
• Implement trunk-based development practices, feature flags, and progressive delivery strategies to enable continuous integration and rapid, safe deployment cycles.
• Apply Test-Driven Development (TDD) and Behavior-Driven Development (BDD) methodologies to ensure high unit test coverage, code quality, and production reliability.
• Drive the adoption of CI/CD pipelines, DevOps practices, infrastructure as code, and automated testing to enhance system reliability and delivery velocity.
• Conduct rigorous code reviews and vulnerability assessments, enforcing secure coding standards and ensuring compliance with organizational security policies.
• Design and deliver distributed, event-driven microservices leveraging messaging platforms such as Kafka, Solace, Tibco, and MQ, with a focus on low-latency and high-availability requirements.
• Collaborate with architects, product owners, and cross-functional teams to design scalable, resilient system architectures and contribute to technical design documentation.
• Mentor junior engineers, lead technical discussions, and foster a culture of continuous learning, engineering excellence, and shared accountability.
• Partner with DevOps teams to optimize deployment pipelines, observability tooling, and production resilience for critical trading systems.
  

Qualifications

• Strong hands-on coding proficiency in Kotlin, Java, and Python, with demonstrated experience building production-grade, enterprise-scale applications.
• Deep expertise in microservices architecture and system design, including Spring Boot, distributed systems, high availability, fault tolerance, and low-latency computing.
• Proficiency in event-driven and messaging systems, including Kafka, Solace, Tibco, and MQ, with experience designing and operating high-throughput data pipelines.
• Hands-on experience with containerization and cloud-native platforms, specifically Kubernetes, Docker, and OpenShift.
• Solid experience with relational databases, particularly Oracle SQL, within high-performance transactional environments.
• Proven experience with trunk-based development, feature flags, and progressive delivery in an enterprise engineering context.
• Strong command of TDD, BDD, and automation-first testing practices, with a track record of maintaining high test coverage in agile delivery environments.
• Proficiency in CI/CD pipeline design and operation, with a firm understanding of DevOps principles, secure coding practices, and vulnerability assessment methodologies.
• Experience conducting code reviews, leading technical discussions, and mentoring engineers within cross-functional, agile product teams.
• Familiarity with performance tuning, observability, and production monitoring practices in distributed, high-availability financial systems.
  

Education

• Bachelor’s in Computer Science, Software Engineering, or related technical field, or industry equivalent experience required
• Master’s degree preferred

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location:

Jersey City New Jersey United States

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Primary Location Full Time Salary Range:

$142,320.00 - $213,480.00

In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Anticipated Posting Close Date:

Jul 17, 2026

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Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

Illinois residents – AI Notice and Right

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.