Citigroup, Inc

Senior Backend Principal Developer Vice President

Citigroup, Inc • $120K — $170K *
Mississauga, ON L4T 0A1In-Person
Enterprise Technology
5 - 7 years of experience
Today
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Job Overview by Ladders

Qualifications

  • 6 to 10 years of backend software development experience in large-scale enterprise platforms.
  • Expert-level proficiency in Java and related frameworks for production-grade code.
  • Deep understanding of distributed systems, microservices, and RESTful API design.
  • Experience implementing identity and access management solutions like OAuth2 and OpenID Connect.
  • Familiarity with cloud-native development on GCP and AWS, including Docker and Kubernetes.
  • Proficient with both relational and NoSQL databases for varied application needs.
  • Bachelor's degree in a relevant field or equivalent practical experience.

Responsibilities

  • Design and build high-performance, fault-tolerant backend services and APIs in Java.
  • Define and evolve backend architecture for a scalable, secure, and resilient platform.
  • Implement security controls across backend components using industry standards.
  • Enhance backend systems for optimal performance using caching and asynchronous processing.
  • Architect integration solutions for diverse content providers via HTTPS.
  • Mentor senior engineers through code reviews and design pattern guidance.
  • Lead root cause analysis of complex production incidents and provide technical direction.

Benefits

  • Hybrid working model with a mix of in-office and remote work.
  • Strategic ownership of architectural decisions affecting a major client platform.
  • Access to learning and development resources for senior-level technical growth.
  • Collaboration with cross-functional teams globally.
  • Wellbeing support and financial benefits for long-term value.
  • Culture that rewards engineering excellence and delivery ownership.
Full Job Description
Citi is looking for a Principal Backend Engineer to take strategic ownership of the backend architecture powering a digital experience platform that serves hundreds of thousands of clients and processes millions of web requests every day. In this senior individual contributor role, you will shape the technical direction of a large-scale, federated system - designing and building the high-performance backend services that connect internal and external users to an integrated digital experience. You will operate at the intersection of hands-on engineering and architectural leadership, influencing technology decisions that have real, measurable impact at enterprise scale.

Responsibilities
  • Design and build high-performance, fault-tolerant backend services and APIs in Java that power authentication, authorization, content routing, and data integration at enterprise scale.
  • Define and evolve the backend architecture of a large-scale federated platform, ensuring systems are scalable, secure, maintainable, and resilient.
  • Implement end-to-end security controls across backend components, including single sign-on, centralized entitlements, and adherence to cyber defense standards.
  • Engineer backend systems for optimal performance by applying caching strategies, asynchronous processing, and efficient data access patterns.
  • Architect integration solutions that connect diverse content provider applications into a unified platform via HTTPS-based interfaces.
  • Mentor senior engineers through in-depth code reviews and practical guidance on design patterns, testing practices, and operational excellence.
  • Lead root cause analysis and resolution of complex production incidents, acting as the go-to technical authority for critical backend services.
  • Collaborate with product, front-end, infrastructure, and security teams to translate business requirements into reliable, end-to-end technical solutions.


Required qualifications & skills
  • 6 to 10 years of backend software development experience, including significant time architecting and leading complex, large-scale enterprise platforms.
  • Expert-level proficiency in Java, with hands-on experience across associated frameworks and the ability to produce production-grade code at pace.
  • Deep practical knowledge of distributed systems, microservices architecture, and RESTful API design.
  • Demonstrated ability to implement identity and access management solutions, including OAuth2 and OpenID Connect protocols and fine-grained authorization models.
  • Solid experience with cloud-native development on GCP and AWS, including containerization with Docker and orchestration with Kubernetes.
  • Confident working across both relational and NoSQL database technologies and selecting the right approach for the problem at hand.
  • Bachelor's degree in a relevant field or equivalent practical experience.


Beneficial skills & qualifications
  • Hands-on experience with Unix environments, Oracle databases, or distributed caching solutions used in high-throughput systems.
  • Exposure to AI tooling or applied machine learning within backend engineering contexts.
  • Working knowledge of front-end integration practices, including ReactJS, Content Security Policy, corporate design system adoption, or accessibility compliance standards.
  • Preferred Master's degree in computer science, software engineering, or a related discipline.


What we offer

At Citi, you will work on technology that operates at genuine global scale - shaping systems that millions of people rely on every day. This role offers the opportunity to lead with technical authority, grow your career in a performance-driven environment, and contribute to a platform where engineering decisions carry real weight.
  • Hybrid working model with 3 days in the office and 2 days working remotely, giving you structure and flexibility.
  • Strategic ownership and influence over architectural decisions that affect a platform serving hundreds of thousands of clients.
  • Access to learning and development resources that support continued technical growth at a senior level.
  • Collaboration with cross-functional teams across engineering, product, infrastructure, and security on a global scale.
  • Wellbeing support and financial benefits designed to provide long-term value for you and your family.
  • A platform and culture that rewards engineering excellence, clear thinking, and delivery ownership.


Build the backend architecture that powers Citi's digital experience for millions of users - apply today and bring your engineering leadership to a platform that operates at true global scale.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

Job Family Group:
Technology

Job Family:
Applications Development

Time Type:
Full time

Primary Location Full Time Salary Range:
$120,800.00 - $170,800.00

Most Relevant Skills
Please see the requirements listed above.

Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

This job opening is for an existing job vacancy.

About Citigroup, Inc

Citigroup is a financial services holding company that provides financial products and services. The company operates through two segments, Global Consumer Banking (GCB) and Institutional Clients Group (ICG). The GCB segment offers traditional banking services to retail customers through retail banking, commercial banking, Citi-branded cards, and Citi retail services. The ICG segment offers various banking, and financial products and services to corporate, institutional, public sector, and high-net-worth clients. This segment provides wholesale banking products and services, including fixed-income and equity sales and trading, foreign exchange, prime brokerage, derivative services, equity and fixed-income research, corporate lending, investment banking, and advisory services, private banking, cash management, trade finance, and securities services. Citi is committed to sustainability and social responsibility, and the company invests in initiatives that promote economic progress.

Citigroup, Inc Careers

Join the vibrant team at Citigroup, Inc, a leading global bank, and propel your career into the future. Citigroup offers a plethora of job opportunities that span across various fields and expertise, making it an ideal place for ambitious professionals to thrive.

Work You’ll Do

At Citigroup, Inc, you will engage in exciting work that matters. Join our team to help innovate and drive transformation in the banking industry. With Citigroup, you can lead initiatives that redefine how banking works and how financial services can empower people globally.

Innovate and Lead

Citigroup, Inc is at the forefront of financial innovation and leadership. By joining our team, you will work alongside top professionals to develop solutions that enhance customer experiences and operational efficiency. Our commitment to innovation is fundamental, and we encourage our team to push boundaries and think outside the box.

Grow Your Career

Citigroup, Inc is not just a company; it's a place where you can grow both professionally and personally. We offer robust career paths and professional development opportunities that help you reach your potential. With diverse career tracks and the support of leadership, your growth at Citigroup is limitless.

Diversity and Inclusion

We believe our strength comes from the diversity of our team. Citigroup, Inc is dedicated to fostering an inclusive workplace where everyone can contribute their best work. Through diversity training and a culture that embraces differences, we create a welcoming environment for all employees.

Benefits and Culture

Citigroup, Inc values the well-being of its employees. We offer competitive benefits packages that support the health, finance, and lifestyle of our team members. Our culture is built on collaboration, respect, and a commitment to excellence. We ensure that every team member feels valued and part of our global family.

Internship and Employment Opportunities

Start your professional journey with Citigroup through our internship programs or full-time job opportunities. We are constantly hiring fresh talent and seasoned experts who bring creativity and innovation to our team. Whether you're refining your skills or ready to lead, there's a position waiting for you at Citigroup.

Networking and Professional Development

At Citigroup, Inc, networking and continuous learning are part of our DNA. We provide platforms for employees to connect with industry leaders and peers, enhancing their skills and opening up new career opportunities. Our leadership programs and professional development initiatives ensure that you are always ahead of the curve.

Join Our Team

Explore the numerous positions available at Citigroup, Inc that match your skills and interests. We are looking for passionate, curious, and solution-driven team players who are ready to make an impact.

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Citigroup, Inc is where your ambition meets opportunity. Join us and transform your career while making a global impact.
Learn more about Citigroup, Inc
Market Cap
$1.3 billion
Industry
Finance & Insurance
Net Income
$89.6 million
Founded
1812
5 Year Trend
+4.6%
NASDAQ
C
* Ladders Estimates

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