Senior Java Developer – Backend & Data Specialist

Citibank (Switzerland) AG; Tampa (FL); Hybrid; Confidential; Full time

Job summary

Citi is seeking a Senior Java Developer to architect and build high-performance backend systems in Tampa, focusing on Java and data-driven solutions. You will lead data design, optimize SQL queries, and drive architectural decisions to meet business needs.

The role emphasizes independence, technical excellence, and collaboration with the tech team to deliver scalable applications and strong data capabilities.

Qualifications

• 5-8 years of professional experience with expert-level proficiency in Java backend development.
• Deep data analysis skills and advanced SQL proficiency.
• Experience in systems analysis and programming of data-intensive software applications.

Responsibilities

• Architect and build backend applications using Java.
• Master data and SQL to design data structures and optimize queries.
• Analyze complex issues and evaluate processes to deliver industry-leading solutions.
• Establish and enforce quality standards and procedures for applications.
• Mentor and coach other developers to foster technical excellence and continuous improvement.

Skills

Java backend

Data & SQL mastery

Systems analysis

Mentoring

Education

Bachelor’s degree or equivalent

Tools

Kafka

MongoDB

Couchbase

Job description

Are you a Java virtuoso who sees code as a craft? Do you thrive on transforming complex data into powerful, elegant backend solutions? We're looking for a Senior Java Developer to join our elite technology team. This isn't just about writing code; it's about architecting the systems that power our business, tackling complex data challenges, and pushing the boundaries of what's possible. You will be the go-to expert for building and refining the core of our applications, operating with a high degree of autonomy to deliver excellence.

Responsibilities

• Architect & Build: Design, develop, and deploy high-performance, secure, and scalable backend applications using Java.
• Master the Data: Become the subject matter expert for complex data analysis and SQL wizardry. You'll be responsible for designing data structures and optimizing queries for maximum efficiency and performance.
• Solve Complex Problems: Utilize your in-depth knowledge to analyze complex issues, evaluate business and system processes, and make evaluative judgments to create industry-leading solutions.
• Champion Quality: Establish and implement new or revised application systems that meet specific business needs, while ensuring essential procedures and operating standards are followed.
• Collaborate & Mentor: Serve as an advisor and coach to other developers, sharing your expertise and fostering a culture of technical excellence and continuous improvement.
• Own Your Work: Operate with a limited level of direct supervision, exercising your independence of judgment and autonomy to deliver results and manage deadlines.

Recommended Qualifications

• Core Expertise: 5-8 years of professional experience with a deep, expert-level proficiency in Java backend development.
• Data & SQL Mastery: Proven, in-depth expertise in data analysis and advanced SQL. You can wrangle any dataset and make it perform.
• Proven Track Record: Experience in the systems analysis and programming of sophisticated, data-intensive software applications.
• Technical Acumen: A proactive, problem-solving mindset with the ability to work under pressure and adapt to unexpected changes in requirements.
• Education: Bachelor’s degree/University degree or equivalent experience.

Nice to Haves

• Hands-on experience with modern data technologies like Kafka, MongoDB, or Couchbase is a significant plus.

Why Join Us

This is a role for a true technologist who wants to make a tangible impact. You will have the opportunity to work on challenging problems, take ownership of critical systems, and contribute to a team that values innovation and quality.

Job Family Group: Technology

Job Family: Applications Development

Time Type: Full time

Primary Location: Tampa Florida United States

Primary Location Full Time Salary Range: $96,960.00 - $145,440.00

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.

Anticipated Posting Close Date: Sep 15, 2026

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

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.