Senior Java Architect for High-Performance Fintech

Citi

Mississauga

Hybrid

CAD 94,000 - 142,000

Full time

14 days+

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Benefits offered by this job

Hybrid work model

Learning opportunities and growth

Competitive compensation and benefits

Wellbeing and work-life balance

Job summary

Citi is seeking a Senior Java Developer to join its Applications Development team, designing, building, and owning high‑performance Java applications that underpin critical financial services at global scale. This hands‑on role requires taking full ownership of code quality, architecture, and reliability for latency‑sensitive systems, with collaboration across analysts, project managers, and engineers.

You will design RESTful APIs with Spring Boot, deploy cloud‑native services on

Qualifications

5+ years of professional Java development experience, with cloud-based environments and distributed systems.
Expert-level Java, RESTful API design, and Spring/Spring Boot experience.
Relational databases (Oracle/SQL) and NoSQL (MongoDB).
Cloud-native platforms (OpenShift, Kubernetes) and messaging (MQ, Kafka).
Clean code, design patterns, and test-driven development practices.

Responsibilities

Design and develop high-volume, low-latency Java applications.
Architect RESTful APIs and scalable backend services using Spring and Spring Boot.
Translate complex requirements into technical specifications and architecture artifacts.
Evaluate emerging technologies to improve the stack.
Build comprehensive testing automation (unit, integration, performance).
Lead peer code reviews and maintain coding standards.
Own production systems and resolve critical issues.
Collaborate with analysts, PMs, and engineers to deliver quality software.