As a Senior Java Backend Engineer at Citi, you will design and build high-performance, scalable data processing applications that support critical business operations. Working within the Spring ecosystem, you will apply AI-assisted development tools and prompt engineering techniques to accelerate delivery and strengthen code quality across the development lifecycle. This role sits within a technology team responsible for building resilient backend systems that manage and process data at scale.
Responsibilities
- Design, build, and maintain high-performance backend services for scalable data processing applications using Java and Spring.
- Architect efficient data processing solutions that handle intensive calculations and complex business logic at scale.
- Collaborate with cross-functional teams to define, design, and deliver new product features.
- Optimize backend application performance, quality, and responsiveness across the platform.
- Diagnose system bottlenecks and bugs, then implement resilient, long-term solutions.
- Apply Test-Driven Development practices to strengthen testability, modularity, and test coverage.
- Optimize SQL queries, data joins, and large-scale data pipelines to support reliable data processing.
- Apply AI-assisted development tools and prompt engineering techniques to accelerate delivery and improve code quality.
Required Qualifications & Skills
- 6+ years of hands-on experience building Java backend applications (Java 17+), backed by a Bachelor's degree or equivalent practical experience.
- Proficiency in the Spring Framework, including Spring Boot, Spring Data, and Spring Cloud.
- Strong knowledge of SQL and relational or NoSQL database management, with experience optimizing queries and data models.
- Understanding of in-memory data loading techniques and efficient data joining strategies for large-scale pipelines.
- Knowledge of Java build tools such as Maven or Gradle, testing frameworks such as JUnit and Mockito, and dependency management.
- Experience applying design patterns and architectural principles such as microservices and event-driven architecture, using Test-Driven Development and tools such as SonarQube to maintain code quality.
- Strong communication skills, with the ability to explain technical concepts to both technical and non-technical audiences.
Beneficial Skills & Qualifications
- Experience with cloud platforms such as AWS, Azure, or GCP.
- Familiarity with containerization and orchestration tools such as Docker and Kubernetes or OpenShift.
- Knowledge of distributed data processing frameworks such as Apache Spark or Apache Flink.
- Master's degree in a relevant technical field.
What We Offer
Join a technology team where your engineering decisions directly shape how Citi processes and manages data at scale, within a hybrid working model that balances collaboration and flexibility.
- Work in a hybrid model with 3 days in the office and 2 days working remotely each week.
- Take ownership of complex backend systems and influence technical direction within the team.
- Build expertise in AI-assisted development tools and apply them to real engineering problems.
- Access structured learning and development programs to grow your technical skills.
- Collaborate with engineering teams across Citi's global technology network.
- Benefit from financial wellbeing resources that support long-term planning.
- Access wellbeing support designed to help you maintain a healthy work-life balance.
Apply now to build the backend systems that power Citi's data processing capabilities at scale.
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Job Family Group: Technology------------------------------------------------------
Job Family:Applications Development------------------------------------------------------
Time Type:Full time------------------------------------------------------
Primary Location:Tampa Florida United States------------------------------------------------------
Primary Location Full Time Salary Range:$113,840.00 - $170,760.00
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.------------------------------------------------------
Other Relevant Skills For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Anticipated Posting Close Date:Nov 04, 2026------------------------------------------------------
Automated Processing and AIWe 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.
Skills Required
- 6+ years of hands-on experience building Java backend applications
- Java 17 or newer experience
- Bachelor's degree or equivalent practical experience
- Proficiency with Spring Framework, including Spring Boot, Spring Data, and Spring Cloud
- Strong knowledge of SQL and relational or NoSQL database management
- Experience optimizing queries and data models
- Understanding of in-memory data loading and efficient data joining strategies for large-scale pipelines
- Knowledge of Maven or Gradle
- Knowledge of JUnit and Mockito
- Experience with design patterns and architectural principles, including microservices and event-driven architecture
- Experience with Test-Driven Development
- Experience using SonarQube to maintain code quality
- Strong communication skills for technical and non-technical audiences
- Experience with AWS, Azure, or GCP
- Familiarity with Docker and Kubernetes or OpenShift
- Knowledge of Apache Spark or Apache Flink
- Master's degree in a relevant technical field
Citi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Citi and has not been reviewed or approved by Citi.
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Healthcare Strength — Health coverage is presented as comprehensive, including free in-network preventive care, mental-health resources, and the Be Well Program. Materials also state new hires have access to health and insurance benefits from the outset.
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Retirement Support — The retirement plan offers a $1-for-$1 match up to 6% of eligible pay. New employees are eligible for the plan, with automatic enrollment after 90 days if they do not enroll themselves.
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Inclusive Benefits Coverage — Benefits highlight fertility treatment coverage, adoption/surrogacy reimbursement up to $30,000, and disability coverage. Coverage extends to spouses and domestic partners regardless of gender identity or sexuality, with gender-affirming care-related support noted.
Citi Insights
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.
