Senior Java Microservices Developer – Trade Settlements Technology

Posted 9 Days Ago
Be an Early Applicant
Belfast, County Antrim, Northern Ireland
Senior level
Fintech • Financial Services
The Role
This role involves designing, developing, and maintaining robust, scalable applications using Java and Spring Boot in a microservices architecture. Responsibilities include implementing CI/CD processes, ensuring code quality through rigorous testing practices, and collaborating with cross-functional teams to optimize deployments and enhance software reliability.
Summary Generated by Built In

By joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.

About the Role
We are looking for a highly skilled and hands-on Java developer to build Spring Boot based Microservices with deployment on Private (OpenShift) cloud or Hybrid Cloud (GCP/AWS).

You will play a critical role in designing, developing, and maintaining scalable, high-quality software solutions while ensuring best-in-class engineering standards, including trunk-based development, test automation, security, and modern ways of working.
This role requires deep expertise in system design, hands-on coding, and strong problem-solving skills to create resilient, high-performing, and secure applications.
Key Responsibilities

Software Development & System Design

  • Design, develop, and maintain robust, scalable, and high-performance applications.
  • Implement trunk-based development practices to enable continuous integration and rapid delivery.
  • Develop clean, maintainable, and testable code following SOLID principles and software design best practices.
  • Ensure high levels of unit test coverage, test-driven development (TDD), and behavior-driven development (BDD).
  • Actively contribute to hands-on coding, code reviews, and refactoring to maintain high engineering standards.

Engineering Excellence & Best Practices

  • Drive the adoption of modern engineering ways of working, including Agile, DevOps, and CI/CD.
  • Advocate for automated testing, infrastructure as code, and continuous monitoring to enhance software reliability.
  • Apply Behavior-Driven Development (BDD), Test-Driven Development (TDD), and unit testing to ensure code quality and functionality.
  • Conduct thorough code reviews, ensuring adherence to best practices in readability, performance, and security.
  • Implement and enforce secure coding practices, performing vulnerability assessments and ensuring compliance with security standards.
  • Collaborate effectively in agile environments, embracing DevOps principles and fostering a culture of continuous delivery and improvement.

Technical Leadership & Collaboration
 

  • Partner with architects, product owners, and cross-functional teams to design scalable and distributed systems.
  • Mentor junior engineers and foster a culture of engineering excellence and continuous learning.
  • Collaborate closely with DevOps teams to optimize deployments, observability, and production resilience.
  • Lead technical discussions, contribute to design documentation, and provide guidance on modern software architectures.
     

Skills and Qualifications

Must-Have Skills:

  • Strong hands-on experience in coding (Java, Python, or any modern programming language).
  • Experience with SpringBoot and messaging services like Kafka
  • Deep expertise in system design and microservices architecture.
  • Experience with trunk-based development, feature flags, and progressive delivery strategies.
  • Proficiency in TDD, BDD, and automation-first mindset to ensure high test coverage and reliability.
  • Strong understanding of CI/CD pipelines, and DevOps practices.
  • Experience conducting code reviews, vulnerability assessments, and secure coding.
  • Familiarity with modern cloud-native technologies (AWS, Kubernetes, Docker).
  • Excellent problem-solving skills and ability to work in fast-paced, agile environments.
  • Strong communication and collaboration skills.
     

Good-to-Have Skills:

  • Experience with Reactive programming, Mongo DB, Elastic
  • Knowledge of performance tuning, observability, and production monitoring.
  • Familiarity with Agile frameworks and modern ways of working in product development.

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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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Citi is an equal opportunity and affirmative action employer.

Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Citigroup Inc. and its subsidiaries ("Citi”) invite all qualified interested applicants to apply for career opportunities. 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 the "EEO is the Law" poster. View the EEO is the Law Supplement.

View the EEO Policy Statement.

View the Pay Transparency Posting

Top Skills

Java
Python
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The Company
HQ: Kwun Tong, Kowloon
223,850 Employees
Hybrid Workplace

What We Do

Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We have 200 years of experience helping our clients meet the world's toughest challenges and embrace its greatest opportunities. We are Citi, the global bank – an institution connecting millions of people across hundreds of countries and cities.

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