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Added 7 days ago
C
Senior Java Back - End Developer - Assistant Vice President
Citi
Mississauga, ON
- Full-time
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…
Added 7 days ago
R
Principal AI Engineer, AI DLC Platform
RBC
Toronto, ON
- Full-time
Tool and data integration: Strong capability designing tool contracts, APIs (FastAPI/gRPC) and MCP connections
Added 7 days ago
SL
Principal AI Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
- Full-time
Deep architectural expertise across multiple languages (Python, Java) and AWS services, with hands-on ability to design scalable solutions
Added 7 days ago
KR
Spring Boot Technical Lead
KTek Resourcing
Montreal, QC
- Contract
Design, develop, and maintain scalable applications using Java, JavaScript, and Spring Boot frameworks.
Added 7 days ago
C
Consultant, Back End Developer
CIBC
Toronto, ON
- Full-time
…enterprise-scale solutions on modern platforms with a variety of system integration and patterns. As a Consultant Back End Developer, you first need to be an expert programmer. You will…
Added 7 days ago
R
Spécialiste en automatisation manufacturière / Manufacturing Automation Specialist
RTX
Longueuil, QC
- Full-time
Maîtrise des langages de programmation (C#, Java, Python);
Added 7 days ago
A
RQ11600 - Senior Software Developer
Amyantek
Toronto, ON · Greater Toronto Area, Canada
- Contract
Job Title: RQ11600 - Senior Software Developer - Full Stack - 3 Resources
Added 7 days ago
RC
Senior QA Engineer
Rexall Care Network
Mississauga, ON
- Full-time
Design, build, and maintain automated test frameworks covering functional, regression, integration, and end-to-end scenarios across web, mobile, and API layers.
Added 7 days ago
T
Senior IBM ACE / IIB Integration Developer (.NET & PowerShell)
ThoughtStorm
Toronto, ON
- Contract
We are seeking a Senior Software Developer to support the sustainment and enhancement of critical police systems for the Public sector client.
Added 7 days ago
E
Quality Engineer - Banking Mobile (iOS/Android) & Automation Testing
Experis
Toronto, ON
- Contract
Integrate with CI/CD: Maintain and optimize automated test runs within our continuous integration and delivery pipeline to ensure immediate feedback loops.
Added 7 days ago
M
RQ11721 - Software Developer - Intermediate
Maarut
Toronto, ON
- Contract
from senior technical resources. Supports coding, testing, integration,
Added 7 days ago
M
RQ11719 - Software Developer - Senior
Maarut
Toronto, ON
- Contract
Experience with APIs, integration patterns, automated
Added 7 days ago
A
Développeur(se) Java sénior
Astek
Montreal, QC
- Full-time
Développeur(se) Java sénior - Systèmes de risque de marché
Added 7 days ago
TI
IAM Engineer
Tekgence Inc
Montreal, QC
- Contract
We are looking for an experienced ForgeRock Developer to design, develop, implement, and support Identity and Access Management (IAM) solutions. The ideal candidate should have strong…
Added 7 days ago
W
Senior Developer - Commercial Technology
WestJet
Calgary, AB
- Full-time
The Senior Developer, Commercial Technology is responsible for designing, building, optimizing, and supporting scalable technology solutions across Commercial Tech Services with primary…
Added 7 days ago
RI
Java Developer
Rivago Infotech Inc
Toronto, ON
- Contract
Strong hands-on experience with Java/J2EE, Spring, Spring Boot, and dependency injection frameworks.
Added 7 days ago
O
Software Developer
OpenText
Richmond Hill, ON
- Full-time
Looking for a smart and motivated senior backend/Java developer to join our Digital Media team, working on the leading enterprise-level Digital Asset Management solutions. We are an agile…
Added 7 days ago
H(
Systems Developer (14 Month Contract)
HOOPP (Healthcare of Ontario Pension Plan)
Toronto, ON · CA ON Toronto
- $71,000 to $109,000 CAD / year
- Full-time
As a Systems Developer in the Pension Product and Technology Group’s Pension Core Team, you will support and improve the quality engineering capabilities used to deliver HOOPP’s frontline…
Added 7 days ago
RC
Guidewire Test Lead – P&C Insurance Domain
Realtek Consulting LLC
Markham, ON
- Contract
We are looking for an experienced Guidewire P&C Integration/API & Functional Test Lead to lead quality assurance and testing initiatives across Guidewire PolicyCenter, BillingCenter,…
Added 7 days ago
RP
Sr. QA Engineer
Rexall Pharmacy Group Ltd.
Mississauga, ON
- $80,453 to $95,000 CAD / year
- Full-time
Design, build, and maintain automated test frameworks covering functional, regression, integration, and end-to-end scenarios across web, mobile, and API layers.
Added 7 days ago
MS
Lead Java Full Stack (Hybrid)
Morgan Stanley
Montreal, QC
- Full-time
We’re seeking someone to join our team as Lead Java Full Stack to drive the design, development, and evolution of strategic risk management technology solutions that support regulatory…
Added 7 days ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Under the direction of the designated IT Manager, the Application and Integration Technical Analyst is a technical lead responsible for system architecture, data strategy, and integration…
Added 7 days ago
M
Software Engineer II (Full-Stack - Java - React)
Mastercard
Vancouver, BC
- Full-time
Full Stack developer with the ability to write secure code in couple of languages (e.g., Java, SQL, React)
Added 7 days ago
ZE
IBM Tririga- Technical Lead
Zernam Enterprise Inc.
Vancouver, BC
- Full-time
…solutions, and guide the team through development, configuration, integration, testing, deployment and production…
Added 7 days ago
Senior Full Stack Developer, Launch
Coveo
Montreal, QC · QC
Do you enjoy solving complex engineering challenges and building systems that perform at scale? As a Senior Full Stack Developer on our Launch team, you'll develop the infrastructure and…

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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