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Added 4 mins ago
P
Data Engineer – Data Platform (AI-Enabled)
Petal
Canada
- Full-time
Help establish practical AI-first development patterns for the team. Lead by example in using AI to increase productivity while maintaining quality, security, governance, and trust.
Added 4 mins ago
SM
RQ11694 – Solutions Designer – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
We are seeking a Senior Solutions Designer with a strong financial background and extensive experience in Oracle EPM Cloud solutions, financial consolidation applications, and enterprise…
Added 4 mins ago
MP
IT Director, Application Development & Support
Michael Page
Markham, ON
- $140,000 to $180,000 CAD / year
- Full-time
Lead cloud modernization, technical debt reduction, and digital transformation initiatives.
Added 4 mins ago
ES
Senior Java Developer
Epsilon Solutions Ltd.
Toronto, ON
- Contract
We are seeking a Senior Java Developer / Technical Lead to design and deliver secure, scalable, and high-volume banking and payment applications. The role will lead the development of Java…
Added 16 mins ago
UO
Senior Manager Information Security
University of Toronto
Toronto, ON
- Full-time
…dotted-line relationship to the University's Chief Information Security & Digital Trust Officer (CISDTO), the Senior Manager, Information Security provides strategic and operational…
Added 16 mins ago
AI
Salesforce Revenue Cloud Architect
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Architect and design Salesforce Revenue Cloud solutions supporting Quote-to-Cash processes.
Added 16 mins ago
A
Senior Manager, Data Science
Alcon
Mississauga, ON
- Full-time
…Alcon. As a Senior Manager, Data Science, you will be trusted to lead and develop a high-performing Data Science team while driving advanced analytics, predictive modeling, statistical…
Added 16 mins ago
LM
DIRECTOR OF INFORMATION TECHNOLOGY
Lacroix Médecine Privée
Quebec, QC
- Full-time
…administrative activities, including ERP, CRM, DME, LIS, SaaS, and cloud…
Added 16 mins ago
T|
Solutions Architect
TALTEK | TALENT in TECHNOLOGY
Montreal, QC · Greater Montreal Metropolitan Area
- Contract
…and the creation of strategies and plans for metadata, data security and archiving. Sol.Arch: This includes the creation of large-scale application context diagrams, application function…
Added 16 mins ago
BC
IT Solution Architect, Applications
Belron Canada inc
Montreal, QC
- Full-time
As an IT Solution Architect - Applications, you will lead the design and evolution of enterprise solutions, ensuring they are scalable, secure, high-performing, and aligned with business…
Added 20 mins ago
Product Manager
HTS Engineering Ltd.
Toronto, ON
Leads the evaluation of LLMs, AI vendors, and tools against criteria such as output quality, latency, cost, security, data residency, and vendor lock-in, and provides recommendations to…
Added 35 mins ago
M
Senior Full-Stack AI Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
AI-Enabled Application Development Design, build, and integrate AI-enabled and Generative AI features, following security, responsible AI, and enterprise governance practices. Lead…
Added 49 mins ago
SM
RQ11651 – Project Manager/Leader – Senior
S M Software Solutions Inc
Toronto, ON
- Internship
…management, cost allocation, Total Cost of Ownership (TCO), cloud pricing models, resource management, risk mitigation, stakeholder engagement, and organizational strategy. The successful…
Added 49 mins ago
D
Manager: Technical Lead/Senior Developer- AI, Data & Analytics- AIDA (Toronto/Calgary)
Deloitte
Toronto, ON
- Full-time
Own engineering practices across testing, CI/CD, documentation and code quality; lead architecture and design reviews and mentor developers across the team.
Added 49 mins ago
KD
Engineering Lead
Karbon Digital
Toronto, ON
- Full-time
…organizations accelerate operations while maintaining enterprise-grade security and…
Added 49 mins ago
CO
Senior Systems Integrator Technology Services (Senior Technical Delivery Lead)
City of Toronto
Toronto, ON · Greater Toronto Area, Canada
- Full-time
You will lead and support complex technology initiatives from planning through implementation, ensuring that technical and business outcomes are effectively delivered. This includes:
Added 49 mins ago
H
Application Security Manager
Hays
Toronto, ON
- Contract
You will lead the evolution of capabilities covering SAST, SCA, Infrastructure as Code (IaC), secrets management, containers, and DAST/fuzzing, including integration with GitHub, Azure…
Added 49 mins ago
OI
Senior Security Technician
Office Interiors
Dartmouth, NS
- Full-time
…communications products and services including Managed and Cloud Services, Telephone, Cabling, Wi-Fi, Premises Security, Networking and Video Collaboration. Since 1980, Cabco has built a…
Added 50 mins ago
C
Expert Systems Architecture-CA
CN
Montreal, QC
- Full-time
…(ART). The role translates business, functional, non-functional, security, and operational requirements into scalable and maintainable solutions aligned with enterprise standards and…
Added 50 mins ago
AC
Senior Solution Architect
Amaris Consulting | Part of Mantu
Montreal, QC
- Full-time
Added 51 mins ago
LC
Senior Specialist, Cyber Risk Advisory & Assessment
Loblaw Companies Limited
Brampton, ON
- Full-time
…innovative Cyber Risk Advisory & Assessment team within Cyber Security. In this role, you will lead cyber risk assessments, provide technical guidance to project teams, and help ensure…
Added 51 mins ago
H
Chercheur scientifique – Réseau électrique Cybersécurité/Research Scientist – Power Grid Cybersecurity
Hitachi
Montreal, QC · (HE)Office_QC, Saint-Laurent
- Full-time
Identifier les vulnérabilités dans les systèmes embarqués et les applications IoT/cloud par l’analyse conceptuelle des exigences, de l’architecture et des documents de conception.
Added 51 mins ago
Senior Lead, ServiceNow ITOM
Take-Two Interactive Software, Inc.
Toronto, ON
Architect & Execute: Lead the implementation of CMDB and CSDM strategies, including the definition of CI classes, attributes, dependencies, and service mapping approaches.
Added 1 hour ago
SENIOR SYSTEMS INTEGRATOR TECHNOLOGY SERVICES (Senior Technical Delivery Lead)
City of Toronto
Toronto, ON
You will lead and support complex technology initiatives from planning through implementation, ensuring that technical and business outcomes are effectively delivered. This includes:
Added 1 hour ago
Enterprise Architect (Customer Experience & Digital Transformation)
Capgemini
Vancouver, BC
We are seeking a senior Enterprise Architect to lead the design and governance of end-to-end digital, data, and customer experience solutions.

Citi

Senior Java Back - End Developer - Assistant Vice President

Mississauga, ON, Canada

$94,300.00 - $141,500.00 · Full-time

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Job details

Pay: $94,300.00 - $141,500.00
Job type: Full-time
Apply by: Dec 28, 2026
Posting language: English
Posted: Oct 19, 2026

Original job description

Role Summary

We’re seeking a seasoned Senior Java Back - End Developer with 5+ years of experience to lead end-to-end technical design and delivery of mission‑critical systems. You will own architecture decisions, drive engineering excellence, mentor senior engineers, and partner with product, security, and platform teams to build scalable, reliable, and secure distributed systems.

Key Responsibilities:

Architecture & Design
- Define and evolve system architecture for cloud-native, microservices/event-driven platforms (scalability, resilience, security, cost).
- Create high-level and low-level designs, integration patterns, API contracts, and reference implementations.
- Lead design reviews; ensure alignment with domain-driven design (DDD), 12‑factor principles, and organization standards.
Engineering Leadership
- Lead squads through full SDLC - from discovery and PoCs to production and SRE handoff.
- Establish coding standards, code review practices, and secure-by-default patterns.
- Mentor and coach senior engineers; support career growth and succession of technical leaders.
Hands-on Development
- Build core services using Java (17+), Spring Boot, REST/GraphQL, and message/event streaming.
- Optimize for performance, concurrency, observability, and operational excellence (SLOs, error budgets).
- Drive quality with unit/integration/contract testing, test data strategy, and automated quality gates.
Cloud & Platform
- Design for AWS/Azure/GCP, container orchestration (Kubernetes), service mesh, and CI/CD.
- Implement infrastructure-as-code (IaC) patterns and secrets management.
- Partner with SRE/Platform teams on monitoring, alerting, logging, tracing, and cost governance.
Data & Integration
- Architect integrations across SQL/NoSQL, caching (Redis), and event streams (Kafka/Pulsar).
- Define data contracts, schema evolution strategies, and idempotent/eventual consistency patterns.
Security & Compliance
- Embed AppSec best practices, OWASP controls, secure API/auth (OAuth2/OIDC), and zero trust patterns.
- Ensure compliance with regulatory and audit requirements where applicable.
Stakeholder Partnership
- Translate business needs into technical roadmaps and architecture runway.
- Communicate trade-offs and decisions to both technical and non-technical audiences.
GenAI : Knowledge of MCP, A2A, Agentic Architecture

Required Qualifications:

5+ years of progressive experience building enterprise systems, with 5+ years in Java and Spring at scale.
Proven delivery of cloud-native, microservices, and event-driven architectures.
Strong expertise in:
- Java 11/17+, Spring Boot, Spring Cloud
- REST/GraphQL APIs, gRPC (nice-to-have)
- Kafka (or Pulsar), Kubernetes, Docker
- RDBMS (PostgreSQL/MySQL/Oracle) and NoSQL (MongoDB/Cassandra/DynamoDB)
- Caching (Redis), CI/CD (GitHub Actions/Azure DevOps/Jenkins), IaC (Terraform/ARM)
- Observability (OpenTelemetry, Prometheus/Grafana, ELK), feature flags/progressive delivery
Solid grasp of concurrency, performance tuning, resiliency patterns (circuit breakers, retries, bulkheads), and fault-tolerance.
Demonstrated leadership of architectural forums, design reviews, and mentorship.
Strong communication and stakeholder management skills.

Nice-to-Have:

Domain knowledge: Payments, banking, capital markets, insurance, e-commerce, supply chain, or telecom.
Security: Threat modeling, shift-left security, SAST/DAST, secrets rotation, mTLS.
Data: CDC (Debezium), schema registry, exactly-once semantics, streaming ETL.
Platform: Service mesh (Istio/Linkerd), API gateways (Kong/Apigee), Serverless (Lambda/Functions).
Modern patterns: CQRS, event sourcing, Saga orchestration, hexagonal architecture.

Education:

Bachelor’s degree/University degree or equivalent experience

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$94,300.00 - $141,500.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

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

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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.

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This job opening is for an existing job vacancy.

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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.

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More about this job

Responsibilities

Lead the end-to-end technical design and delivery of mission-critical, scalable, and secure distributed systems. Mentor senior engineers while driving engineering excellence and architectural decisions across the full software development lifecycle.

Requirements

Requires 5+ years of progressive experience in enterprise systems with deep expertise in Java and Spring Boot. Proven track record in cloud-native, microservices, and event-driven architectures is essential.

Skills

Java
Spring Boot
Microservices
Cloud-native architecture
Event-driven architecture
Kubernetes
AWS
Azure
GCP
Kafka
REST
GraphQL
CI/CD
Infrastructure-as-code
System design
Mentorship

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Microservices
Cloud-native
Event-driven
Kubernetes
AWS
Azure
GCP
Kafka
REST
GraphQL
Terraform
CI/CD
PostgreSQL
NoSQL
Redis
OpenTelemetry
Prometheus
Grafana
Domain-driven design
SDLC
AppSec
OAuth2
Zero trust
Distributed systems
Architecture
Mentorship
Payments
Banking

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