At a Glance
- Tasks: Design and maintain a cutting-edge calculation engine for high-stakes financial applications.
- Company: Join Citi, a global leader in finance and technology innovation.
- Benefits: Enjoy competitive pay, health perks, remote work options, and growth opportunities.
- Other info: Collaborative team culture with mentorship and career development support.
- Why this job: Make a real impact on the future of finance with advanced tech solutions.
- Qualifications: Proven Java development experience and skills in distributed systems required.
The predicted salary is between 63000 - 77000 £ per year.
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.
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, making it faster, utilising resources better, and scaling to even greater sizes.
- Serve as advisor or coach to team members, allocating and overseeing work, mentoring and guiding mid-level developers, providing technical advice, code reviews, and career development support.
- Implement changes and improvements to Citi's Risk Calculation Engine, including analyzing and designing improvements to the distribution mechanisms of the engine.
- Operationally support the optimization of Risk calculations by examining and providing SME level insight into the distributed execution of extremely large calculations.
- Plan, coordinate, and execute strategic changes to the engine to reach the next scaling milestone.
- Provide specialized customer support to optimize and improve large, distributed calculations.
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.
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.
Senior Software Engineer (VP) in London employer: CitiGroup
Citi is an exceptional employer that offers a dynamic work environment where employees can thrive and make a significant impact in the investment banking sector. With a strong focus on professional development, team collaboration, and community engagement, associates are empowered to grow their careers while contributing to meaningful projects within the Consumer, Luxury & Retail team. Located in a vibrant city, Citi provides unique opportunities for networking and exposure to leading global consumer players, making it an ideal place for ambitious professionals seeking rewarding employment.
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We think you need these skills to ace Senior Software Engineer (VP) in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at CitiGroup.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at CitiGroup and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at CitiGroup
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If CitiGroup uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
