Join our high-impact Test Data Management team, a group dedicated to building and maintaining the essential tools that empower dozens of scrum teams to test their customer-impacting changes safely and efficiently. Our core mission is to automate and streamline the complex process of managing test data at a massive scale. As a Senior Application Developer, you will be a full stack engineer responsible for designing, building, and supporting the modern web applications that form our self-service toolset. This role requires expertise across the stack, from front-end development in React to back-end services in Java/Spring Boot. You will be instrumental in our ongoing effort to consolidate and modernize our applications, creating a more efficient workflow for the entire organization within an API-first, microservices-based architecture. If you are passionate about automation, building thoughtful interfaces, and creating solutions that make developers' lives easier, this is the team for you.
Key Responsibilities
- Full-Stack Development: Design, build, and support modern, user-friendly web applications across the stack (UI, APIs, and backend services) to provide self-service test data capabilities.
- Backend & API Services: Develop scalable, secure microservices using Java and Spring Boot. Design, build, and document RESTful APIs, ensuring adherence to service contracts and versioning strategies.
- Automation & Modernization: Design and implement automated processes for provisioning and managing test data accounts. Actively contribute to the consolidation and modernization of our internal toolset to improve efficiency and user experience.
- Collaboration & Custom Solutions: Work closely with development teams to understand their needs and provide customized test data solutions where required.
- Engineering Excellence: Utilize GitHub and contribute to automated CI/CD pipelines for building, testing, and deploying applications. Promote engineering best practices by writing robust unit and integration tests and participating in code reviews.
- Support & Operations: Perform standard test data management functions to ensure the reliability and availability of test data for all scrum teams.
Required Skills & Qualifications
- 5+ years of experience in full-stack web application development.
- Strong backend development experience with Java and Spring Boot (REST APIs, security concepts, performance, and scalability).
- Strong front-end development experience with React, including TypeScript, HTML5, and CSS.
- Solid understanding of API design and microservices architecture (service boundaries, resilience, observability basics).
- Hands-on experience with SQL Server and relational data modeling.
- Proficiency with GitHub workflows and practical experience with CI/CD pipelines.
- Excellent communication skills, a strong sense of ownership, and the ability to work collaboratively in an agile team.
Preferred Skills
- Experience with cloud platforms (AWS, Azure, or GCP).
- Experience with Node.js.
- Containerization and orchestration experience (Docker, Kubernetes/OpenShift).
- Experience with a variety of automated testing frameworks (unit, integration, and UI testing).
- Exposure to observability practices (logging, metrics, tracing) and production support.
Education
Bachelor’s degree in Computer Science, Software Engineering, a related technical field, or equivalent practical experience
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Job Family Group: Technology------------------------------------------------------
Job Family:Applications Development------------------------------------------------------
Time Type:Full time------------------------------------------------------
Primary Location:14000 CITI CARDS WAY BUILDING C JACKSONVILLE------------------------------------------------------
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:Jul 15, 2026------------------------------------------------------
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
- 5+ years of experience in full-stack web application development.
- Strong backend development experience with Java and Spring Boot (REST APIs, security, performance, scalability).
- Strong front-end development experience with React, including TypeScript, HTML5, and CSS.
- Solid understanding of API design and microservices architecture (service boundaries, resilience, observability basics).
- Hands-on experience with SQL Server and relational data modeling.
- Proficiency with GitHub workflows and practical experience with CI/CD pipelines.
- Excellent communication skills, strong sense of ownership, ability to work collaboratively in an agile team.
- Bachelor's degree in Computer Science, Software Engineering, a related technical field, or equivalent practical experience.
- Experience with cloud platforms (AWS, Azure, or GCP).
- Experience with Node.js.
- Containerization and orchestration experience (Docker, Kubernetes/OpenShift).
- Experience with a variety of automated testing frameworks (unit, integration, and UI testing).
- Exposure to observability practices (logging, metrics, tracing) and production support.
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 — Benefits coverage is positioned as comprehensive, including health, dental, and vision insurance plus on-site clinics, prescription drug support, and disability coverage. Family-building support such as fertility assistance is described as a notable differentiator within the overall package.
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Retirement Support — Retirement benefits are framed as strong, highlighted by a 401(k) with matching and additional plan options like a Roth 401(k). Financial support is reinforced through discounts and broader financial guidance resources tied to the benefits ecosystem.
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Wellbeing & Lifestyle Benefits — Wellbeing support extends beyond insurance through programs like an Employee Assistance Program, counseling/legal resources, and gym or wellness reimbursement. These offerings increase the perceived total rewards value even when cash compensation sentiment varies by role.
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.
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