Senior Full-Stack Java Engineer -

Responsibilities:

• End-to-End (E2E) Technical Delivery & Development Take end-to-end ownership of complex development deliverables: evaluate business requirements, formulate technical specifications, create detailed designs, and write high-quality, maintainable code.
• Drive tasks related to feasibility studies, effort/time estimation, risk assessment, and implementation planning for new product features and system enhancements.
• Actively participate in the construction, build, automated testing, and CI/CD deployment pipelines, ensuring features transition smoothly into production for business adoption.
• Provide post-implementation monitoring, hypercare, and Level 3 (L3) technical support, ensuring system stability and rapid resolution of operational/functional defects.

2. Architecture Alignment, Code Quality & Standards

• Ensure all developed solutions adhere to overall enterprise architecture blueprints, secure coding guidelines, and industry best practices.
• Implement robust unit, integration, and contract tests (TDD/BDD) to achieve high test coverage and deliver continuously improved product quality.
• Actively participate in peer code reviews, enforce coding and testing standards, and provide constructive feedback to elevate overall codebase quality.
• Identify performance bottlenecks and implement optimization techniques across Java application services and database queries.

3. Technical Guidance & Team Collaboration

• Serve as a technical advisor and mentor to mid-level and junior developers, guiding them on design patterns, framework standards, debugging, and best coding practices.
• Collaborate closely with the Technical Lead/Scrum Master, Product Owners, Business Analysts, and Quality Assurance (QA) engineers within an Agile/Scrum framework.
• Act as a Subject Matter Expert (SME) on application functionality, integration points, and core capabilities for internal and external technical stakeholders.
• Operate with a high degree of autonomy and independent judgment, proactively managing tasks and dependencies with minimal supervision.

4. Risk Management, Security & Governance

• Recommend and implement robust security measures and defensive coding practices across APIs, user interfaces, and data persistence layers.
• Drive proactive identification and remediation of security vulnerabilities (Snyk, Checkmarx, SonarQube) in accordance with Citi's secure SDLC policies.
• Appropriately assess risk when business and technical decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients, and assets.
• Adhere to corporate governance, change management procedures, and compliance standards, escalating control issues with transparency.

Recommended Qualifications:

• 5-8+ years of professional software engineering and systems analysis experience in enterprise Java applications.
• Proven track record as a Senior Individual Contributor (IC) driving complex features and modules from requirement analysis through production deployment.
• Hands-on experience in working within an Agile/Scrum environment with globally distributed teams.
• Experience in systems analysis and programming of software applications
• Experience in managing and implementing successful projects
• Working knowledge of consulting/project management techniques/methods
• Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements

Education:

Bachelor's degree/University degree or equivalent experience

Technical Competencies

• Strong Core Java & Spring: In-depth knowledge of Core Java (concurrency, multithreading, collections, memory management) and the Spring ecosystem (Spring Boot, Spring Batch/Integration).
• Full-Stack Proficiency: Solid working experience with modern frontend technologies including JavaScript/TypeScript and React.js workflows.
• Database Expertise: Strong hands-on SQL and data modeling skills across relational databases (Oracle 19c) and NoSQL document databases (MongoDB).
• Automated Testing & CI/CD: Hands-on experience writing automated unit/integration tests and working with modern CI/CD build and deployment pipelines (Docker, OpenShift, Jenkins/GitHub).

Domain & Interpersonal Skills (Desirable)

• Experience within Financial Services, Banking, Capital Markets, or Securities Services (Custody, Funds, Clearing, or Reporting/BI Platforms).
• Familiarity with financial messaging protocols and file transfer standards (SWIFT ISO 15022 / 20022, FIX, sFTP, NDM).
• Strong problem-solving, analytical, and interpretive thinking capabilities.
• Clear and concise written and verbal communication skills with the ability to