Full Stack Engineer (C#/WPF UI) – VP

📍 Job Overview

Job Title: Full Stack Engineer (C#/WPF UI) – VP

Company: Citi

Location: London, England, United Kingdom

Job Type: FULL_TIME

Category: Applications Development / Software Engineering

Date Posted: April 17, 2026

Experience Level: 5-10 Years

Remote Status: Hybrid

🚀 Role Summary

• Design, develop, and implement advanced User Interface (UI) solutions for Equities Technology, leveraging C# and WPF.

• Provide technical leadership and direction to a globally distributed team of developers, fostering best practices in software engineering and agile methodologies.

• Drive innovation in UI development by forecasting technical advancements and ensuring the platform remains at the forefront of financial technology.

• Collaborate closely with business and product partners to translate complex financial requirements into robust, scalable, and high-performance software solutions.

• Contribute to the multi-year transformation of Citi's global Equities platform, focusing on execution, prime, clearing, and margining processes.

📝 Enhancement Note: This role is positioned at a VP level within Citi's Equities Technology division, indicating a significant leadership and technical contribution expectation. The focus on C#/WPF UI development within a full-stack context, coupled with a global team and hybrid work arrangement, suggests a need for strong technical architecture, mentorship, and cross-cultural communication skills. The emphasis on transforming a "best-in-class global platform" highlights the strategic importance of this position.

📈 Primary Responsibilities

• Lead and mentor a global team of developers in the design, development, and delivery of C#/WPF-based user interfaces for Equities Finance Technology.

• Architect and implement innovative UI solutions that meet stringent performance, resiliency, and scalability requirements for high-volume financial transactions.

• Conduct rigorous code reviews to ensure code quality, adherence to architectural standards, and efficient implementation of complex business logic.

• Analyze and resolve high-impact technical challenges by evaluating complex business processes, system flows, and industry best practices in application development.

• Define and enforce coding, testing, debugging, and implementation standards to maintain a high-quality and consistent codebase across the team.

• Collaborate with cross-functional teams, including business analysts, product managers, and other engineering groups, to define technical roadmaps and deliver integrated solutions.

• Proactively identify and evaluate emerging UI technologies and trends, proposing their adoption to enhance user experience and system capabilities.

• Manage technical delivery timelines and resource allocation within an agile development framework, ensuring successful project completion.

• Uphold Citi's commitment to compliance, ethical conduct, and risk management by ensuring all development activities adhere to internal policies and external regulations.

📝 Enhancement Note: The responsibilities emphasize technical leadership, architectural input, and direct contribution to the transformation of a critical financial platform. The VP level suggests a need for strategic thinking beyond just coding, including team mentorship, process improvement, and risk assessment.

🎓 Skills & Qualifications

Education:

Experience:

• 5-10 years of progressive experience in application development and systems analysis, with a strong emphasis on UI development.

• Proven track record of successfully managing and delivering complex software development projects within agile environments.

Required Skills:

• Extensive hands-on development experience building sophisticated User Interfaces (UIs).

• Proficient in C#, WPF, and the .NET framework.

• Strong command of SQL for data manipulation and retrieval.

• Experience with version control systems, specifically Git.

• Familiarity with messaging systems like Kafka for asynchronous communication.

• Proven experience in Quality Assurance (QA) processes, including testing strategies and execution.

• Demonstrated ability to perform effectively in high-pressure environments and manage competing priorities.

• Excellent problem-solving skills with a strategic and analytical mindset.

• Strong interpersonal and communication skills, with a proven ability to manage stakeholder expectations effectively.

Preferred Skills:

• Experience with front-end technologies such as React.

• Proficiency in Java for full-stack development capabilities.

• Understanding of Prime Services operations and technology within financial institutions.

📝 Enhancement Note: The "5-10 years" experience level for a VP role is standard, but the emphasis on "extensive development experience" and "SME in at least one area" suggests a need for deep technical expertise rather than broad, superficial knowledge. The inclusion of Kafka and React/Java as preferred skills indicates a move towards modern, distributed, and full-stack architectures.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least 2-3 detailed case studies demonstrating successful UI development projects using C# and WPF, highlighting the complexity of the problems solved and the innovative solutions implemented.

• Provide evidence of contributions to system architecture and design, particularly for financial trading platforms or similar high-throughput systems.

• Include examples of process optimization initiatives, such as improvements to development workflows, testing methodologies, or deployment pipelines, with quantifiable results.

Process Documentation:

• Document at least one significant UI development project from inception to deployment, detailing the agile process, workflow design, and iterative improvements made.

• Present examples of how you have established or enhanced coding standards, testing protocols, and debugging procedures for a development team.

• Prepare to discuss your approach to measuring and analyzing the performance and efficiency of UI applications, including metrics related to responsiveness, stability, and user adoption.

📝 Enhancement Note: For a VP-level role, the portfolio should emphasize leadership, strategic technical contributions, and process ownership, not just individual coding achievements. Demonstrating an ability to define and improve development processes and systems is crucial.

💵 Compensation & Benefits

Salary Range:

• Estimated Annual Salary Range: £90,000 - £130,000 GBP.

• 📝 Enhancement Note: This estimate is based on market research for VP-level Full Stack Engineers with C#/WPF expertise in London, considering the financial services industry and Citi's standing. The range accounts for the specified experience level (5-10 years), the VP title, and the high cost of living in London. Actual compensation will be determined by experience, qualifications, and internal equity.

Benefits:

• 27 days of annual leave, plus bank holidays, offering a healthy work-life balance.

• A discretionary annual performance-related bonus, recognizing individual and team contributions.

• Comprehensive Private Medical Care and Life Insurance for personal well-being and security.

• Employee Assistance Program (EAP) providing confidential support services.

• Robust Pension Plan to support long-term financial planning.

• Paid Parental Leave, supporting employees during significant life events.

• Exclusive employee discounts on a variety of products and services.

Working Hours:

• Standard full-time hours, typically 40 hours per week, with flexibility.

• Hybrid working model allowing up to 2 days working from home per week, balancing remote work with in-office collaboration.

📝 Enhancement Note: The benefits package is standard for a large financial institution like Citi, with a notable inclusion of paid parental leave and significant annual leave. The hybrid model indicates a commitment to modern work arrangements.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services, specifically Global Equities Technology. Citi operates at the forefront of global finance, managing trillions in daily transactions and serving clients in over 180 countries. This environment demands high performance, innovation, and robust risk management.

Company Size: Large Enterprise (over 10,000 employees). This scale means extensive resources, complex organizational structures, and global reach, offering opportunities for broad impact and career mobility.

Founded: 1812. Citi boasts a long and rich history, providing stability and a deep understanding of financial markets, while also undergoing continuous technological transformation.

Team Structure:

• The Equities Technology division is undergoing a significant transformation, focusing on building a best-in-class global platform.

• The Equity Finance Technology team in London is a key component, focusing on UI development within this broader initiative.

• The team comprises high-calibre engineers and collaborates closely with business and product partners.

Methodology:

• Agile development methodologies are fundamental to project execution, emphasizing iterative development, collaboration, and rapid response to change.

• A strong focus on performance, resiliency, and automation is critical for the global financial platform.

• Data-driven decision-making and continuous improvement are embedded in the team's approach to software engineering.

Company Website: https://www.citi.com/

📝 Enhancement Note: Citi's culture combines the rigor and tradition of a global financial institution with a forward-looking approach to technology and innovation. The "VP" title implies a role with significant influence and responsibility within this dynamic environment.

📈 Career & Growth Analysis

Operations Career Level: This role is classified as a VP (Vice President) within the Applications Development job family. This level signifies senior technical leadership, strategic contribution, and a high degree of autonomy in managing technical projects and teams. It involves not just execution but also foresight, planning, and mentorship.

Reporting Structure: The successful candidate will report to a senior technology leader within Equities Technology, likely an Associate Director or Director. They will, in turn, provide technical direction and oversight to a team of developers spread across various geographical locations. Collaboration with product managers, business analysts, and other engineering leads will be crucial.

Operations Impact: As a Full Stack Engineer (VP) in Equities Tech, the impact is direct and substantial. This role is instrumental in re-engineering a critical global platform that handles trillions in daily transactions. Success means enabling world-leading performance, resiliency, and new capabilities in execution, prime brokerage, clearing, and margining, directly influencing client outcomes and Citi's competitive growth in global markets.

Growth Opportunities:

• Technical Specialization: Deepen expertise in advanced UI frameworks (WPF, React), C#/.NET, or explore adjacent areas like microservices, Kafka, and cloud-native architectures within the financial domain.

• Leadership Progression: Advance to higher leadership roles such as Associate Director or Director, managing larger teams, broader portfolios, or strategic technology initiatives within Citi.

• Cross-Functional Mobility: Transition into roles within architecture, product management, or program management within the broader Equities Technology division or other technology departments at Citi.

• Mentorship and Training: Actively participate in Citi's formal and informal mentorship programs, guiding junior engineers and potentially leading training initiatives.

• Industry Exposure: Gain deep insights into the intricacies of global financial markets, trading systems, and regulatory landscapes, becoming a sought-after expert in FinTech.

📝 Enhancement Note: The VP level at Citi suggests a clear path towards senior leadership. The emphasis on platform transformation and global reach offers significant opportunities for impact and career advancement within a stable yet innovative financial organization.

🌐 Work Environment

Office Type: This position is designated as Hybrid. Employees are expected to work from Citi's London office, with the flexibility to work from home up to two days per week. This blend aims to foster collaboration and innovation while providing work-life balance.

Office Location(s): The role is based in London, England, United Kingdom, at one of Citi's prominent office locations. Specific address details would typically be provided during the interview process.

Workspace Context:

• Collaborative Environment: The London office is designed to support collaboration, with modern meeting spaces and open-plan areas conducive to team interaction, essential for working with global teams.

• Technology & Tools: Access to state-of-the-art development tools, high-performance computing resources, and robust IT infrastructure required for complex financial software development.

• Team Interaction: Opportunities for regular interaction with local and remote team members, fostering a connected and supportive work environment despite geographical distribution.

Work Schedule:

• Full-time, typically 40 hours per week.

• The hybrid model offers flexibility, allowing for up to two remote workdays per week, subject to team and project needs.

• Collaboration across different time zones (e.g., US, Asia) will be a regular aspect of the role, requiring some flexibility in working hours.

📝 Enhancement Note: The hybrid model is a key feature, balancing the benefits of in-person collaboration with the flexibility of remote work. The need to work across time zones is a common characteristic of global financial technology roles.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will review your application and resume to assess qualifications and fit.

• Technical Assessment: Expect a technical interview, potentially including coding challenges (live coding or take-home) focused on C#, WPF, and algorithmic problem-solving. This may also involve system design questions relevant to financial applications.

• Behavioral & Situational Interviews: These interviews will assess your leadership capabilities, problem-solving approach, teamwork, communication skills, and how you handle pressure and ambiguity. Expect questions related to your experience managing global teams and driving technical initiatives.

• Portfolio Review: You will likely be asked to present and discuss your portfolio, focusing on key projects, your specific contributions, the technical challenges you overcame, and the impact of your work.

• Final Round: This may involve interviews with senior stakeholders or business leaders to evaluate strategic alignment and cultural fit.

Portfolio Review Tips:

• Highlight Leadership & Impact: For a VP role, focus on projects where you provided technical direction, mentored teams, or significantly influenced project outcomes. Quantify impact whenever possible (e.g., improved performance by X%, reduced bugs by Y%).

• Showcase C#/WPF Expertise: Present detailed case studies of complex UI applications built with C# and WPF. Explain architectural decisions, design patterns used, and challenges in creating responsive and maintainable interfaces.

• Demonstrate Process Improvement: Include examples where you improved development workflows, testing processes, or team collaboration. Show how you applied agile principles effectively.

• Prepare for System Design: Be ready to discuss how you would design scalable, resilient, and performant systems for financial trading environments, incorporating technologies like Kafka and modern architectural patterns.

• Tailor to Citi: Research Citi's Equities Technology transformation goals and articulate how your experience and portfolio align with their strategic objectives.

Challenge Preparation:

• Coding Proficiency: Practice C# and WPF coding exercises, focusing on UI responsiveness, data binding, and efficient resource management.

• System Design Scenarios: Prepare for system design questions related to high-frequency trading platforms, real-time data processing, and robust error handling mechanisms.

• Behavioral Question Framework: Use the STAR method (Situation, Task, Action, Result) to structure your answers for behavioral questions, particularly those related to leadership, conflict resolution, and managing global teams.

📝 Enhancement Note: The interview process for a VP role will be rigorous, assessing not only technical depth but also leadership, strategic thinking, and cultural alignment with a global financial institution. A well-prepared portfolio is essential.

🛠 Tools & Technology Stack

Primary Tools:

• C#/.NET: Core programming language and framework for application development.

• WPF (Windows Presentation Foundation): For building rich, interactive, and modern desktop user interfaces.

• Git: Essential for version control, collaborative development, and managing code repositories.

• Agile Project Management Tools: Such as Jira or Azure DevOps, for managing sprints, backlogs, and development workflows.

Analytics & Reporting:

• SQL Databases: For data storage and retrieval, requiring strong querying and potentially database design skills.

• Internal Citi Tools: Likely a suite of proprietary analytics and reporting tools specific to financial markets and trading performance.

• Potentially BI Tools: Such as Tableau or Power BI, for visualizing data trends and performance metrics (though not explicitly listed, common in large enterprises).

CRM & Automation:

• Kafka: Key for asynchronous messaging, enabling real-time data streams and decoupled system communication.

• Internal Workflow/Orchestration Tools: Citi likely uses internal or custom-built tools for automating financial processes and workflows.

• CI/CD Tools: Such as Jenkins, Azure Pipelines, or similar, for automated build, testing, and deployment processes.

📝 Enhancement Note: The technology stack reflects a focus on robust, enterprise-grade desktop application development within a modern, distributed architecture. Proficiency across C#, WPF, .NET, SQL, Git, and Kafka is critical, with an understanding of agile and CI/CD practices.

👥 Team Culture & Values

Operations Values:

• Integrity & Ethics: Paramount in financial services, ensuring all actions and decisions are guided by honesty, ethical conduct, and adherence to regulations.

• Client Focus: Driving innovation and delivering high-quality technology solutions to meet the evolving needs of global clients in the Equities market.

• Innovation & Transformation: Embracing new technologies and methodologies to re-engineer platforms and redefine the future of finance.

• Collaboration & Teamwork: Fostering a global, inclusive environment where diverse perspectives are valued, and collective effort drives success.

• Excellence & Accountability: Striving for the highest standards in technical delivery, performance, and reliability, taking ownership of outcomes.

Collaboration Style:

• Global & Cross-Functional: Working seamlessly with engineers, product managers, business analysts, and stakeholders across different geographies and departments.

• Agile & Iterative: Embracing a culture of continuous feedback, iterative development, and agile ceremonies to ensure alignment and rapid progress.

• Knowledge Sharing: Actively participating in code reviews, design discussions, and knowledge-sharing sessions to elevate the technical capabilities of the entire team.

• Data-Driven: Utilizing data and metrics to inform decisions, measure impact, and drive continuous improvement in both processes and product quality.

📝 Enhancement Note: Citi emphasizes a blend of traditional financial industry values (integrity, client focus) with modern tech-driven principles (innovation, collaboration, data-driven). The VP role is expected to embody and promote these values within their team.

⚡ Challenges & Growth Opportunities

Challenges:

• Global Team Management: Effectively leading and motivating a geographically dispersed team across different time zones and cultural nuances.

• Platform Transformation: Navigating the complexities of re-engineering a large-scale, mission-critical financial platform while maintaining existing operations.

• Technical Debt & Legacy Systems: Balancing the need for innovation with the management of existing systems and potential technical debt.

• High-Performance Demands: Meeting the stringent performance, latency, and reliability requirements inherent in high-frequency trading and financial markets.

Learning & Development Opportunities:

• Advanced FinTech Training: Access to specialized training on financial markets, trading systems, regulatory compliance, and emerging technologies in FinTech.

• Leadership Development Programs: Citi offers extensive programs for leadership growth, including mentorship, executive coaching, and management skills training.

• Cross-Disciplinary Exposure: Opportunities to learn about other areas of Equities Technology (e.g., backend, infrastructure, data science) or other divisions within Citi.

• Industry Certifications: Support for pursuing relevant industry certifications to enhance professional credentials and expertise.

📝 Enhancement Note: The challenges presented are typical for senior roles in large, transforming financial institutions. The growth opportunities are substantial, leveraging Citi's global scale and commitment to employee development.

💡 Interview Preparation

Strategy Questions:

• Technical Leadership: "Describe a time you led a team through a significant technical challenge or platform migration. What was your approach, and what were the key outcomes?" (Focus on C#/WPF, agile, global team management, and problem-solving).

• UI Architecture: "How would you architect a new WPF-based UI for a high-frequency trading platform, considering aspects like performance, scalability, and real-time data updates?" (Prepare to discuss design patterns, data binding strategies, and integration with backend services like Kafka).

• Process Improvement: "Tell me about a time you identified an inefficiency in a development process and implemented a change. What was the process, your analysis, and the quantifiable result?" (Highlight your experience with QA, agile, CI/CD, or coding standards).

Company & Culture Questions:

• "Why are you interested in Citi and specifically in this role within Equities Technology?" (Research Citi's transformation goals, their role in global finance, and articulate how your skills align).

• "How do you foster a collaborative and inclusive environment within a globally distributed team?" (Discuss your communication strategies, methods for building rapport, and conflict resolution approaches).

Portfolio Presentation Strategy:

• Storytelling: Structure your portfolio presentations around compelling narratives. For each project, clearly define the problem, your role, the technical solutions you implemented (emphasizing C#/WPF), the challenges faced, and the measurable impact.

• Quantify Everything: Use data to support your claims. Instead of saying "improved performance," say "improved UI rendering time by 30%."

• Focus on Leadership: For a VP role, highlight instances where you provided technical direction, mentored junior engineers, or influenced architectural decisions.

• Interactive Demonstration: If possible, prepare a brief, live demonstration of a relevant UI component or a walkthrough of a complex code structure.

• Address Citi's Needs: Link your experience directly to the requirements of the job description and Citi's broader strategic objectives in Equities Technology.

📝 Enhancement Note: Interview preparation should focus on demonstrating not just technical proficiency in C#/WPF but also strong leadership, strategic thinking, and experience in managing complex, global projects within the demanding financial services sector.

📌 Application Steps

To apply for this operations position:

• Submit your application through the Citi careers portal via the provided link.

• Tailor Your Resume: Optimize your resume to highlight your extensive experience with C#, WPF, .NET, and UI development. Use keywords from the job description, such as "Full Stack Engineer," "VP," "Agile Methodologies," "System Analysis," and "Kafka." Quantify achievements with metrics where possible.

• Prepare Your Portfolio: Curate 2-3 of your most impactful UI development projects. For each, prepare a concise summary detailing the problem, your technical approach (with a focus on C#/WPF), any architectural contributions, process improvements, and the measurable business impact. Be ready to present this clearly and confidently.

• Practice STAR Method Answers: Prepare detailed responses using the STAR method for common behavioral questions related to leadership, teamwork, problem-solving, and handling pressure, especially in the context of global teams and financial technology.

• Research Citi's Transformation: Understand Citi's current initiatives in Equities Technology, particularly their multi-year transformation to build a best-in-class global platform. Articulate how your skills and experience can contribute to this vision.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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