Senior Software Engineer, CalcGraphs - Vice President

## Review of the Senior Engineer, Applications Development Technology Lead Analyst (XiP) Opportunity at Citi For seasoned software engineers looking to make a significant impact within the dynamic world of financial technology, Citi's Senior Engineer role on the XiP large-scale distributed calculation platform presents a compelling opportunity. This position offers the chance to work at the forefront of cutting-edge technology, shaping the future of risk and suitability calculations for one of the world's leading financial institutions.

This role is ideal for individuals who thrive in complex, high-performance environments and possess a strong desire to contribute to strategic technological advancements. The XiP platform is the engine that powers critical calculations across Citi's global trading desks and enterprise users, handling an astonishing volume of computations daily – approximately 0.5 billion risk and suitability calculations. The sheer scale and complexity of the system, which can compress millions of minutes of compute into a single, rapid execution, underscores the importance and impact of this position.

• Strategic Impact: You will play a pivotal role in shaping the long-term strategic direction of the XiP Calculation Engine. This is not just about maintaining existing systems; it's about envisioning and building the next generation, making it faster, more efficient, and capable of scaling to even greater magnitudes.
• Cutting-Edge Technology: The XiP platform is at the leading edge of distributed computing. You'll gain invaluable experience with modern cloud technologies like OpenShift, Amazon EKS, and the upcoming integration with Google Kubernetes Engine. The system's ability to scale on-demand, running tens of thousands of service replicas, provides a robust environment for learning and growth.
• Complex Problem Solving: This role offers the chance to tackle intricate challenges in distributed systems. From optimizing data transfer across vast numbers of machines to ensuring seamless operations amidst potential system failures, you'll be engaging with some of the most demanding problems in software engineering.
• Mentorship and Leadership: As a Senior Engineer and Technology Lead Analyst, you will have the opportunity to mentor and guide mid-level developers. This aspect of the role fosters leadership skills and the satisfaction of contributing to the career development of your colleagues.
• Direct Customer Interaction: The role involves providing specialized customer support to optimize and improve large, distributed calculations. This direct engagement with clients offers a unique perspective on business needs and the practical application of technology.
• Continuous Learning and Evolution: The XiP platform is in a state of constant evolution to support new scenarios, technologies, and infrastructure. This dynamic environment ensures continuous learning and the opportunity to stay at the forefront of technological innovation.

• Depth of Java Expertise: A strong foundation and multiple years of professional experience with Java and its associated frameworks like Spring and Spring Boot are essential. The role demands a deep understanding of object-oriented programming and design patterns.
• Distributed Systems Acumen: Proven experience in designing, building, and maintaining large-scale, distributed systems is a critical requirement. Candidates should be comfortable with the complexities of distributed environments.
• Cloud and Containerization Familiarity: While not always mandatory, exposure to cloud platforms (AWS, Azure, GCP) and containerization technologies (Docker, Kubernetes) is highly desirable and will be a significant advantage given the platform's infrastructure.
• Performance Optimization Focus: The role emphasizes building highly performant systems. Candidates should have a keen interest and proven ability in analyzing and optimizing performance, especially within large-scale distributed computations.
• Agile Methodology Experience: Working within an Agile/Scrum development environment is a core requirement, so familiarity with these methodologies is important for seamless integration into the team.
• Python Skills: Practical experience with Python for scripting, automation, or data processing tasks is a valuable asset.

In summary, this Senior Engineer position at Citi is an exceptional opportunity for ambitious and skilled software professionals. It offers the chance to contribute to a mission-critical system, work with advanced technologies, and develop expertise in a high-impact area of financial technology. If you are passionate about building robust, scalable, and performant distributed systems and are eager to take on leadership responsibilities, this role could be a significant step forward in your career trajectory.