Senior Java Architect - Vice President

Citigroup Inc.; Mississauga; Hybrid; CAD 171,000 - 242,000; Full time

Benefits offered by this job

Hybrid work model (3 days in office, 2

Learning & development opportunities

Global collaboration across technology

Competitive compensation & benefits

Wellbeing resources

Job summary

Citigroup Inc. in Mississauga is seeking a Senior Java Architect to lead a team of engineers building AI-driven systems using Java, Python, and modern ML frameworks. You will combine hands-on technical direction with people leadership, shape architecture, manage budgets, and align with stakeholders across Citi’s global technology organization.

Hybrid model: 3 days in office, 2 remote. Qualified candidates have 10+ years in engineering, strong Java, Python ML experience, and familiarity with

Qualifications

• 10+ years of engineering experience with leadership responsibilities.
• Strong hands-on Java development experience.
• Proven track record delivering AI/ML solutions.

Responsibilities

• Lead the design and delivery of AI/ML solutions including LLM and RAG architectures.
• Manage multiple engineering teams and set technical direction.
• Oversee hiring, performance evaluations and career development.
• Own budget planning and resource allocation for AI initiatives.
• Define engineering standards and best practices for development.
• Resolve complex technical issues in AI engineering.
• Negotiate priorities with senior stakeholders across tech and business.
• Identify risks early and escalate controls where needed.

Skills

Team leadership

Java engineering

AI/ML architecture

Python programming

NLP concepts

LLMs knowledge

Tools

Docker

Kubernetes

TensorFlow

PyTorch

LangChain

Hugging Face

Job description

As a Senior Java Architect at Citi, you will lead a team of engineers building Large Language Model and Retrieval-Augmented Generation solutions that power next-generation applications across the organization. You will combine hands-on technical direction with people leadership, shaping how Citi designs, builds, and scales AI-driven systems using Java, Python, and modern machine learning frameworks. This role sits within Citi's Technology function and offers the chance to influence architecture decisions that reach a global engineering organization.

Responsibilities

• Lead the design and delivery of AI and machine learning solutions, including Large Language Model and Retrieval-Augmented Generation architectures.
• Manage multiple engineering teams, setting technical direction and tracking delivery against established goals.
• Oversee hiring, performance evaluations, and career development for engineers across your teams.
• Own budget planning and resource allocation for AI engineering initiatives, monitoring outcomes against targets.
• Define engineering standards and best practices for applications development, ensuring consistent, high-quality delivery.
• Resolve complex technical and operational issues by applying deep expertise in AI engineering and broader technology knowledge.
• Negotiate priorities and align delivery plans with senior stakeholders across technology and business functions.
• Safeguard Citi and its clients by identifying risk early, applying sound judgment, and escalating control issues with transparency.

Required Qualifications & Skills

• 10 or more years of relevant engineering experience, including people or team leadership.
• Strong hands‑on experience building applications in Java.
• Proven industry experience designing and delivering Artificial Intelligence and Machine Learning solutions.
• Proficiency in Python with experience using frameworks such as TensorFlow, PyTorch, LangChain, or Hugging Face.
• Deep hands‑on experience with Large Language Models such as GPT, Llama, or Claude.
• Solid understanding of Natural Language Processing concepts, techniques, and evaluation methods.
• Experience containerizing applications with Docker and orchestrating them using Kubernetes.

Beneficial Skills & Qualifications

• Experience with document digitization technologies such as Tesseract, Abbyy, Kofax, or Google Vision combined with AI and machine learning.
• Experience migrating legacy applications to microservices or micro‑frontend based architectures.
• Familiarity with cloud platforms such as AWS, GCP, or Azure and their AI and machine learning services.

What We Offer

You will join a global engineering organization where your leadership directly shapes how Citi builds and scales AI technology.

• Lead and grow high‑performing engineering teams with real ownership over technical direction.
• Work in a hybrid model with 3 days in the office and 2 days working remotely.
• Access ongoing learning and development opportunities to deepen your expertise in AI engineering.
• Collaborate with engineering and business leaders across a global technology organization.
• Build long‑term financial wellbeing through competitive compensation and benefits.
• Benefit from wellbeing support and resources designed to help you manage work and life.

Join Citi as a Senior AI Engineering Manager and lead the teams building the next generation of AI‑powered technology

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.

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.

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.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.