Citigroup, Inc

Senior React/.NET/SQL Server Full Stack Developer - Vice President

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

Qualifications

  • 6+ years in full-stack development.
  • Proficient in .NET Core or .NET Framework and C#.
  • Strong SQL Server database design and optimization skills.
  • Experience with Python for scripting and data processing.
  • Solid understanding of RESTful API and KAFKA integration.
  • Competency in HTML5, CSS3, and JavaScript/TypeScript.
  • Hands-on experience with version control systems like Git.

Responsibilities

  • Design and maintain web applications using .NET and C#.
  • Build and optimize user-friendly front-end interfaces with React.
  • Write optimized SQL queries and maintain databases.
  • Debug issues across the full stack from UI to database.
  • Participate in code reviews and share knowledge with the team.
  • Collaborate with cross-functional teams to deliver solutions.
  • Contribute to Generative AI projects using Python.

Benefits

  • Full-time position with a focus on professional growth.
  • Opportunity to work on cutting-edge Generative AI initiatives.
  • Inclusive collaboration with diverse teams and roles.
  • Encouragement of continuous learning and adaptation to new technologies.
  • Engagement in the full software development lifecycle.
Full Job Description
Job Overview:

We're looking for a talented Full-Stack Software Developer to join our growing team. You'll work on designing, developing, and maintaining web applications using .NET/C#, React, and SQL Server, while also contributing to emerging Generative AI initiatives using Python. This role requires a solid understanding of both front-end and back-end development, a passion for writing clean and efficient code, and the ability to collaborate with cross-functional teams to deliver high-quality solutions.

We are looking for an avid technologist who can -
  • Demonstrated Proactiveness & Autonomy: You are a self-starter who takes initiative, identifies challenges, and independently drives towards innovative solutions.
  • Develop and maintain web applications using .NET Core/Framework and C# for back-end functionality.
  • Build responsive, user-friendly front-end interfaces with React (version 16+).
  • Design and optimize SQL Server databases, writing efficient queries and stored procedures.
  • Contribute to Generative AI projects by leveraging Python for data processing, scripting, or model integration.
  • Collaborate with product managers, data scientists, and developers to deliver high-quality solutions.
  • Write clean, maintainable, and well-documented code following best practices.
  • Debug and resolve technical issues across the stack, from UI to database.
  • Participate in code reviews and share knowledge to elevate team performance.
  • Integrate APIs, third-party services, and emerging AI tools as needed.
  • Stay current with industry trends and propose enhancements to our tech stack.


Here is what you bring -
  • 6+ years of professional experience in full-stack development.
  • Proficiency in .NET Core or .NET Framework and C# for server-side development.
  • Solid knowledge of SQL Server, including database design, queries, code development, and optimization.
  • Hands-on experience with Python (e.g., scripting, data manipulation, or API handling).
  • Familiarity with RESTful API and KAFKA development and integration.
  • Competence in HTML5, CSS3, and JavaScript/TypeScript for front-end work.
  • Experience with version control systems (e.g., Git).
  • Strong problem-solving skills and ability to work both independently and collaboratively.
  • Good communication skills and eagerness to learn new technologies.
  • Strong experience with React (2+ years preferred) for front-end development.


Preferred Skills (Nice-to-Haves):

  • Exposure to Generative AI concepts or tools (e.g., LLMs, NLP).
  • Experience with containerization with Kubernetes or OpenShift ECS.
  • Familiarity with unit testing frameworks (e.g., xUnit, NUnit, Jasmine, or pytest).
  • Understanding of Agile/Scrum methodologies or CI/CD practices.


On a typical day here is what you could do -
  • Provide critical technical and business support for Citi Applications, delivering swift resolutions to issues, ensuring system stability, and driving efficiency to contribute directly to business success.
  • Serve as a key liaison between business and internal technology teams, fostering collaboration and acting as a mentor and advisor to junior analysts.
  • Lead and participate in the full application release lifecycle, from development and testing through deployment and post-release validation, ensuring seamless transitions and maintaining comprehensive technical documentation.
  • You will maintain application systems that have completed the development stage and are running in the daily operations of the firm.
  • You will manage, maintain and support applications and their operating environments, focusing on stability, quality and functionality against service level expectations.
  • You will assist in appropriately assessing risks when business decisions are made, demonstrating consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to policy.


Education:
  • Bachelor's/University degree or equivalent experience


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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