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Added 9 mins ago
Civil Construction Surveyor - Prince Rupert (LOA Provided - BC Wide Applicants Welcome)
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Civil Construction Surveyor - Prince Rupert (LOA Provided - BC Wide Applicants Welcome)
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Pharmacy Assistant, L1 (CareRx Ottawa Perley)
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Other duties will be assigned as required within the Pharmacy Assistant scope of responsibilities.
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Business Development Manager (Bilingual)
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Oracle Cloud Integration Specialist - Senior
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Systems Administrator/Operations Support Specialist - Senior
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Accounts Payable Analyst
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Warehouse Associate
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Added 9 mins ago
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Hayu Marketing Intern
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Senior Technical Analyst / Developer - Machine Learning & Data Engineering
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Data Governance Lead
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Test Analyst
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Head of Operations
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Nurse Practitioner (Part-Time)
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…patients in both in-person and collaborative settings. Your responsibilities will…
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Java Development Lead / Architect
Yochana
Montreal, QC
- Contract

Yochana

Java Development Lead / Architect

Montreal, QC, Canada

Contract

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Job details

Job type: Contract
Apply by: Dec 6, 2026
Posting language: English
Posted: Nov 6, 2026

Original job description

Job Title: Java Development Lead / Architect

Location: Montreal, Quebec, Canada

Work Model: Hybrid

Position Type: Contract

Job Summary:

We are looking for an experienced Java Development Lead / Architect with strong expertise in Java 17/21, Spring Boot, GraphQL, and distributed systems. The ideal candidate will be responsible for leading backend development, designing scalable and high-performance applications, and driving technical architecture decisions.

The candidate should have hands-on experience with messaging platforms, distributed caching, microservices, cloud-native technologies, and AI-assisted development tools such as Devin or Claude Code.

Key Responsibilities:

Lead backend development and provide technical direction to the development team.
Design and implement scalable, high-performance applications using Java 17/21 and Spring Boot.
Define application architecture, design patterns, coding standards, and technical best practices.
Develop GraphQL APIs using SPQR, including WebSocket subscriptions.
Implement secure authentication and authorization using OAuth2 and JWT.
Design and optimize distributed data solutions using GridGain/Ignite.
Manage messaging and event-driven integrations using Solace, Kafka, and IBM MQ.
Oversee database design, SQL Server development, and database migrations using Flyway.
Drive application performance optimization, including JVM tuning, heap management, and garbage collection.
Lead code reviews, testing strategies, and technical troubleshooting.
Work with Kubernetes and GitHub Actions for deployment automation and CI/CD.
Encourage AI-assisted development using Devin or Claude Code.

Mandatory Technical Skills:

Java 17/21 (Java 21 preferred).
Spring Boot and Microservices Architecture.
GraphQL (SPQR) and WebSocket subscriptions.
OAuth2 and JWT.
GridGain/Ignite.
Solace or Kafka and IBM MQ.
SQL Server and Flyway.
JUnit, Mockito, and Cucumber.
Kubernetes and GitHub Actions.
AI coding tools: Devin or Claude Code.

Good to Have:

GridGain/Ignite performance tuning.
JVM optimization, heap management, and GC tuning.
High-performance Java programming and concurrency.
Solace administration and operations.
Experience building AI development skills, workflows, and validators.

Candidate Profile:

Strong hands-on Java development and architecture experience.
Proven ability to lead backend engineering teams.
Excellent problem-solving, system design, and performance optimization skills.
Experience working with distributed and high-throughput systems.

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More about this job

Responsibilities

Lead backend development and guide the team in designing and implementing scalable, high-performance Java applications and distributed systems. Define architecture and engineering standards, optimize performance, oversee integrations and delivery practices, and encourage the use of AI-assisted development tools.

Requirements

Candidates should have strong hands-on Java and architecture experience, proven backend team leadership, and expertise in distributed, high-throughput systems. Required technical experience includes Java 17/21, Spring Boot, GraphQL, security, messaging, databases, testing, Kubernetes, CI/CD, and AI coding tools.

Skills

Java 17/21
Spring Boot
Microservices Architecture
GraphQL
SPQR
WebSocket Subscriptions
OAuth2
JWT
GridGain/Ignite
Solace
Kafka
IBM MQ
SQL Server
Flyway
Kubernetes
GitHub Actions

Visa sponsorship

Not detected in the job text

Keywords

Java 17/21
Spring Boot
Microservices
GraphQL
SPQR
WebSocket Subscriptions
OAuth2
JWT
GridGain
Apache Ignite
Solace
Apache Kafka
IBM MQ
SQL Server
Flyway
JUnit
Mockito
Cucumber
Kubernetes
GitHub Actions
CI/CD
Distributed Systems
Event-Driven Architecture
JVM Tuning
Garbage Collection
Concurrency
Devin
Claude Code
Backend Development
Technical Architecture

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