Applications Development Technology Senior Lead

Citi; Mississauga; On-site; CAD 206,000 - 310,000; Full time

Benefits offered by this job

Equal opportunity employer

Job summary

Citi is seeking a senior Applications Development Technology Lead in Mississauga to drive enterprise Java and Spring initiatives, shape JVM performance, and oversee caching, infrastructure, and security across delivery teams.

The role requires 10+ years in Java, Spring, and API design, with collaboration across Infrastructure, Cybersecurity, and Risk to ensure compliant, scalable solutions aligned with Citi’s goals.

Qualifications

• 10+ years of relevant experience in Java core concepts with ability to guide technical teams at depth.
• Strong working knowledge of Spring Framework (Boot, MVC, Data, Security, Cloud).
• Experience with SQL, ORM, and API design (RESTful, GraphQL, API Gateway).

Responsibilities

• Provide executive oversight on Java and Spring upgrade programs and rollout.
• Set standards for JVM performance, GC tuning, and observability across teams.
• Govern caching strategy with GemFire/Geode and design cluster/topology.
• Lead collaboration with Infrastructure/DevOps for scalable environments (Kubernetes, Docker) and IaC.
• Drive secure coding standards, vulnerability management, and CI/CD security gates.

Skills

Java core concepts

Spring Framework

API design principles

Database technologies

Education

Bachelor’s degree

Master’s degree preferred

Tools

Kubernetes

Docker

Job description

The Applications Development Technology Senior Lead is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to drive organizational capability, set the technical direction for enterprise applications, and ensure the delivery of scalable, secure, resilient, and high-performance solutions aligned with Citigroup's strategic goals.

Responsibilities:

Java Platform & Spring Ecosystem

• Provide executive oversight on Java and Spring Framework upgrade programs — governing migration strategies, compatibility assessments, deprecation roadmaps, regression testing plans, and enterprise-wide rollout
• Set standards for JVM performance optimization, GC tuning, memory management, and application observability across all teams
• Ensure engineering teams stay current with the Java ecosystem evolution and Spring release cycles

Caching & Infrastructure Collaboration

• Govern GemFire/Apache Geode caching strategy across the enterprise — overseeing cluster topology design, region configuration standards, WAN replication, eviction policies, persistence strategies, and high-availability configuration
• Own the strategic relationship with Infrastructure and DevOps teams, providing executive direction on the planning, setup, and lifecycle management of:
  • Application and database clusters and node topology
  • Caching layers and distributed in-memory data grids (GemFire/Geode)
  • Database environments — relational, distributed, and NoSQL
  • Containerized application environments (Kubernetes, Docker)
  • CI/CD pipelines and release engineering infrastructure
  • Approve and guide Infrastructure-as-Code (IaC) strategies and platform automation standards

Security & Code Vulnerability Management

• Own the group's security engineering posture — define and enforces secure coding standards, vulnerability management processes, and compliance controls across all development teams
• Govern code vulnerability assessment and remediation programs, including SAST/DAST tooling integration (SonarQube, Checkmarx) and mandatory security gates in CI/CD pipelines
• Liaise with Cybersecurity, Risk, and Compliance teams to address audit findings and implement security improvement plans

Delivery & Operational Excellence

• Monitor and govern all phases of the software development lifecycle — analysis, design, construction, testing, and implementation — ensuring consistent quality and on-time delivery across all programs
• Ensure essential procedures are followed and define operating standards and processes for the entire group
• Appropriately assess risk when business decisions are made, demonstrating particular 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, applying sound ethical judgment, and escalating, managing, and reporting control issues with transparency

Required Qualifications:

• 10+ years of relevant experience, in Java core concepts (OOP, Collections, Concurrency, JVM internals) with ability to guide technical teams at depth
• Strong working knowledge of Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, Spring Cloud)
• Experience with database technologies (SQL, ORM frameworks) and API design principles (RESTful, GraphQL, API Gateway patterns)

Education:

• Bachelor’s degree/University degree or equivalent experience
• Master’s degree preferred

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:

$145,100.00 - $217,700.00

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.

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