Kitchener Waterloo, On Java developer Jobs – 51 Openings This Week

Senior Full Stack Engineer (Java)
Confidential —Ontario
- $43,000–$68,000 a year
- Part-time
- Remote
- Azure
- Java
- Databases
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3d
Senior Software Engineer - Open Data Platform (ODP)
Acceldata —Kitchener, ON
- $100,000–$140,000 a year
- Full-time
- Microsoft Excel
- Oracle
- English
- Dental care
- Paid time off
Sr. Principal AI Developer
OpenText —Waterloo, ON
- Azure
- Computer Science
- Engineering
- Paid time off
Staff Engineer - Open Source Data Platform (ODP)
Acceldata —Kitchener, ON
- Full-time
- Microsoft Excel
- Azure
- Oracle
- Dental care
- Paid time off
Principal Engineer - Open Source Data Platform (ODP)
Acceldata —Kitchener, ON
- Full-time
- Microsoft Excel
- Oracle
- Doctoral degree
- Dental care
- Paid time off
MAS 9 Developer
XCIS AI —Canada
- $90,000 a year
- Temporary
- Remote
- Oracle
- Computer Science
- DevOps
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4d

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Senior Full Stack Engineer (Java)

Confidential
Ontario

Quick apply

Job details

Part-time
$43,000–$68,000 a year
3 days ago

Qualifications

Spring Boot
Azure
CSS
React
Kubernetes
Full-stack development
Software deployment
NoSQL
Git
MongoDB
Java
Databases
Microservices
AWS
Docker
JavaScript
PostgreSQL
Distributed systems
RabbitMQ
REST
Software development
APIs
Kafka
TypeScript
Communication skills
HTML
MySQL

Full job description

Overview

A software development firm is seeking an experienced Senior Full Stack Engineer to help design and evolve scalable web platforms for its clients. This role suits a senior engineer who enjoys working across the stack - from Java-based microservices to high-performance front-ends in React and Next.js - on meaningful technical challenges within a collaborative engineering environment.

You will architect, develop, and maintain modern distributed systems that support evolving client requirements, bringing strong technical judgment, production-scale experience, and the ability to collaborate with cross-functional teams to deliver reliable, maintainable software.

Responsibilities

● Design, develop, and maintain full-stack web applications across client engagements, using React, Next.js, TypeScript/JavaScript, HTML, and CSS.

● Architect and build Java microservices with Spring Boot, and design RESTful APIs and service integrations for scalable, reliable distributed systems.

● Contribute to solution architecture and technical decision-making on client projects, applying modern engineering best practices.

● Deploy and operate backend services in cloud environments such as AWS or Azure, including containerized workloads.

● Integrate with data platforms and, where a project requires, AI/ML services and pipelines, working alongside AI and data engineers.

● Design and maintain database schemas and data models (PostgreSQL, MySQL, or MongoDB) for performance and scalability.

● Collaborate within cross-functional delivery pods - delivery lead, designers, and QA - to translate client requirements into well-designed solutions.

● Participate in code reviews, architecture discussions, and technical planning, upholding high engineering standards.

● Troubleshoot complex production issues and optimize performance across the front-end and back-end.

● Maintain clear documentation of system architecture, APIs, and technical decisions.

Requirements

● 10+ years of professional software development experience, including significant full-stack delivery.

● 8+ years of hands-on experience with Java, including Spring Boot and microservices-based architectures.

● Proven experience building modern front-end applications with React and Next.js.

● Deep understanding of RESTful API design, distributed systems, and service-oriented architecture.

● Experience deploying and operating applications in cloud environments such as AWS or Azure.

● Strong experience with relational or NoSQL databases (PostgreSQL, MySQL, or MongoDB), including schema design and performance optimization.

● Proficiency with Git-based workflows and collaborative development in Agile teams.

● Strong debugging, troubleshooting, and performance-optimization skills across the full stack.

● Excellent communication skills and the ability to collaborate effectively with distributed, remote teams.

Preferred experience

● Containerization and orchestration with Docker or Kubernetes.

● CI/CD pipelines and automated deployment workflows.

● Supporting production systems at scale - monitoring, logging, and performance tuning.

● Event-driven systems or messaging platforms such as Kafka or RabbitMQ.

● Exposure to AI/ML integration or data-intensive applications.

Engagement details

Role type: Part Time, approximately 20 hours per week.

Work environment: Remote, with hybrid as project needs require.

This role is well suited to a senior engineer who enjoys working across the stack and contributing to architecture without the constraints of a traditional full-time role.

About the company

Company details are shared with shortlisted candidates during the interview process.

Compensation: $43,000 to $68.000 CAD/Annum

Work Type: Remote

Use of AI and Recording in Our Hiring Process
We may use artificial-intelligence (AI) tools at points during the Screening and interview process to support tasks such as assessments, note-taking and summarizing conversations. Some interview sessions may also be recorded.

Pay: $43,000.00-$68,000.00 per year

Experience:

Software deployment: 10 years (required)
Java: 8 years (required)

Work Location: Remote

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java developer jobs in kitchener waterloo, on

Senior Full Stack Engineer (Java)

Senior Software Engineer - Open Data Platform (ODP)

Sr. Principal AI Developer

Staff Engineer - Open Source Data Platform (ODP)

Principal Engineer - Open Source Data Platform (ODP)

MAS 9 Developer

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