Job Description
Team Overview
XiP is building a next-generation cross-asset calculation system for Citi trading desks and enterprise users in the largest global financial markets and exchanges in New York, London, and other major financial hubs.
Our team owns multiple Java Spring Boot Services that execute, partition, and track quantitative risk graphs/trades in a distributed environment. These graphs can fail due to their complexity and our system must adapt quickly to these failures to provide a seamless experience for clients.
XiP Compute Services are deployed onto OpenShift and Amazon’s Elastic Kubernetes Service (EKS). An important initiative in 2025 will be onboarding Google’s Kubernetes Engine to further expand our coverage. Our system scales on-demand, and we can run up to tens of thousands of replicas of our services across all asset classes.
Role Overview
We are seeking a Senior Engineer to fill the role of ‘Applications Development Technology Lead Analyst’ on the XiNG large scale distributed calculation platform (XiP).
In this role you will design, build, and maintain the calculation engine at the heart of the XiP platform. This engine is responsible for c. 0.5 billion risk & suitability calculations at Citi every day. A single customer run compresses 17 million minutes of compute into a single 90-minute execution.
Run on hundreds of thousands of pods across the entire XiP platform every day this calculation engine is both highly performant and rapidly changing to support new scenarios, technologies, and infrastructure.
As an engineer working on the calculation engine. You will work closely with software engineers, DevOps, and our customers to ensure reliable, secure, and scalable operations of our platform.
Responsibilities:
Take part of the shared responsibility for the long-term strategic direction of the XiP Calculation Engine:
Apply your experience and skills to develop the future versions of the calculation engine. This means making it faster, utilizing resources better, and scale to even greater sizes. This means adding new features without impacting performance of the platform in undesirable manner, small changes multiplied by millions of calculations have a high cost. This means solving hard problems like transferring small amounts of data to a huge number of machines.
Serve as advisor or coach to team members, allocating and overseeing work:
Mentor and guide mid-level developers, providing technical advice, code reviews, and career development support. Allocate tasks based on skill sets and project priorities, ensuring balanced workloads and timely delivery. Foster a collaborative and growth-oriented team environment, encouraging best practices and continuous learning.
Implement changes and improvements to Citi's Risk Calculation Engine, including analyzing and designing improvements to the distribution mechanisms of the engine which regularly parallelizes 250,000 hours of compute into a single 90-minute execution:
Lead the design, development, and implementation of enhancements to the Risk Calculation Engine, focusing on optimizing its distribution mechanisms. Analyze current parallelization strategies and identify opportunities to further improve efficiency, scalability, and throughput.
Operationally support the optimization of Risk calculations by examining and providing SME level insight into the distributed execution of extremely large calculations:
Monitor and analyze the distributed execution of large-scale risk calculations, identifying performance bottlenecks and inefficiencies. Provide subject matter expertise to guide operational improvements, leveraging deep technical knowledge to recommend and implement optimizations that enhance calculation speed and resource utilization.
Plan, coordinate, and execute strategic changes to the engine to reach the next scaling milestone:
Develop and manage strategic initiatives aimed at scaling the Risk Calculation Engine to meet future business demands. Coordinate with stakeholders to ensure that all scaling efforts are aligned with customer needs.
Provide specialized customer support to optimize and improve large, distributed calculations.
Act as a primary point of contact for clients to address issues and optimize inefficiencies that arise during distributed workload execution.
Qualifications:
- Multiple years professional software development experience with Java.
- Solid experience with Java frameworks (e.g., Spring, Spring Boot, Quarkus).
- Experience designing, building, and maintaining large-scale, distributed systems.
- Experience with RESTful API design and implementation.
- Strong understanding of object-oriented programming and design patterns.
- Exposure to NoSQL databases (e.g., MongoDB, Cassandra) is a plus.
- Exposure to cloud platforms (e.g., AWS, Azure, GCP) and containerization (e.g., Docker, Kubernetes) is desirable.
- Experience with unit testing, integration testing, and test automation frameworks (e.g., JUnit, Mockito).
- Experience working in Agile/Scrum development environments.
- Practical experience with Python for scripting, automation, or data processing tasks.
- Experience with CI/CD pipelines and DevOps practices is a plus.
Education:
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
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Job Family Group:
Technology------------------------------------------------------
Job Family:
Applications Development------------------------------------------------------
Time Type:
Full time------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
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Citi works tirelessly to provide consumers, corporations, governments and institutions with a broad range of financial services and products. We strive to create the best outcomes for our clients and customers with financial ingenuity that leads to solutions that are simple, creative and responsible.
"We consistently assess Citi’s role in response to three questions: What are we doing to help create inclusive and resilient communities? How can we use our voice to help drive dialogue toward solutions? Is Citi walking the talk — are we doing the right things within our own firm? The short answer to all three of these questions continues to be the same: that we can and should do more."
— Michael L. Corbat, CEO
| Workplace Initiatives | |
| Program for parents returning to work after Parental Leave? | Yes- Open for vacancies in November 2019 |
| Leadership development programs? | Yes |
| Mentoring programs? | Yes |
| Coaching programs? | Yes |
| Employee-led diversity networks? | Yes |
| Internal women’s networking groups? | Yes |
| Open to discussing flexible work arrangements at interview stage? | Yes |
| No. of weeks paid maternity leave at full salary: | up to 26 weeks |
| Minimum weeks tenure required to be eligible for paid maternity leave: | 26 weeks |
| No. of weeks paid paternity leave at full salary: | 2 weeks |
| Minimum tenure required to be eligible for paid paternity leave: | 26 weeks |
| Workplace Initiatives | |
| Gender pay gap reporting information 2017 (UK): | |
| Average pay gap: | 43.50% |
| Median pay gap: | 32.00% |
| Average bonus gap: | 71.60% |
| Median bonus gap: | 71.40% |
| Signatory of the UK Women in Finance Charter? | Yes |
| Targets to raise the number of women in leadership? | Yes |
| Targets to raise the number of BAME individuals in leadership? | Yes |
| Listed in the Bloomberg Diversity & Inclusion Index? | Yes |
Returner Programme
The Citi Returner Programme is a supportive hiring programme, designed to help you transition from a career break into a career within financial services. You may have worked in the finance sector, the tech sector or another industry all together! We value your knowledge, skills and experience, regardless of how and where you have developed them. We believe that hiring people from different backgrounds with diverse perspectives brings advantages to our teams.
The programme will start in January 2020 and Returners will benefit from a structured and in-depth induction to help them transition successfully back into the workplace, followed by a tailored programme of professional development and learning delivered over a period of 15-18 months, dependent on the role and career pathway.
Returners will undertake professional qualifications as part of the programme and enjoy the benefits of being part of a supportive cohort. Citi recognises the importance of flexible working arrangements and is happy to explore these with you.
Eligible candidates will –
• Have been on a career break for at least two years
• Be looking to start the next phase of their career in financial services, in a range of roles, including operations and technology
• Demonstrate natural curiosity and be motivated to learn new skills
• Exhibit excellent leadership and communication skills
The returner programme will be open for applications on the 1st September 2019.