Senior Java Architect – Microservices & Secure Systems (Hybrid)

Citi; Irving (TX); Hybrid; USD 107,000 - 161,000; Full time

Benefits offered by this job

Hybrid work model

Continuous learning resources

Growth opportunities

AI-assisted tooling

Wellbeing & work-life balance

Total rewards package

Job summary

Citi is seeking a Senior Java Developer to design, build, and deliver complex software applications within a high-performing Technology team. You will influence standards, mentor peers, and collaborate across technology and business units to ensure secure, scalable solutions that drive real business outcomes.

You will lead architecture activities, drive SDLC phases, and embed security practices while delivering high-quality code with automated tests.

Qualifications

• 5 or more years of hands-on experience in software application development or systems design.
• Deep expertise in backend development using Java 17+, Spring, Spring Boot Microservices, and Hibernate, with strong command of Oracle PL/SQL for database development.
• Demonstrated ability to produce software design artefacts including architecture documentation, flowcharts, and UML-style activity and sequence diagrams.
• Practical experience managing projects using Agile methodologies and JIRA, with the ability to plan, prioritize, and deliver under shifting timelines and requirements.
• Subject matter expertise in at least one area of software application development, with the ability to advise senior stakeholders and guide technical decision-making independently.
• Strong proficiency in source control practices using Git, with experience working across collaborative, multi-team development environments.
• Bachelor's degree in a relevant field or equivalent professional experience.

Responsibilities

• Design and implement scalable Java applications using Java 17+, Spring Boot Microservices, Hibernate and Oracle PL/SQL.
• Build full-stack capabilities with frontend interfaces (JavaScript, HTML5, CSS3) integrated with backend services.
• Create architecture diagrams, flowcharts, and UML activity/sequence diagrams to guide decisions.
• Oversee all SDLC phases from feasibility through post‑live support.
• Embed security best practices in design and conduct post‑implementation reviews.
• Increase quality with automated tests (JUnit, Cucumber, Playwright).
• Provide technical leadership to stakeholders and cross‑functional teams on engineering standards.
• Mentor junior and mid-level engineers to advance their skills.

Skills

Java 17+

Spring Boot

Hibernate

Oracle PL/SQL

Git

Agile / Jira

UML diagrams

Education

Bachelor's degree in a relevant field or equivalent professional experience

Tools

JUnit

Cucumber

Playwright

Jira

MongoDB

Job description

Citi is seeking a Senior Java Developer to design, build, and deliver complex software applications within a high-performing Technology team. You will influence standards, mentor peers, and collaborate across technology and business units to ensure secure, scalable solutions that drive real business outcomes.

You will lead architecture activities, drive SDLC phases, and embed security practices while delivering high-quality code with automated tests.