Jobs in Canada

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Added 10 days ago
US
Software Engineer (Core Java, Market Risk)
United Software Group Inc
Montreal, QC
- Contract
Location: Montreal, QC, Canada (100% onsite, no remote or hybrid)
Added 10 days ago
WT
Senior Java Software Engineer
Wissen Technology
Montreal, QC
- Full-time
Mode of Work: Onsite 3-4 days per week
Added 10 days ago
AI
QA Automation Engineer – Selenium & Playwright
Apptoza Inc.
Toronto, ON
- Contract
Build and enhance scalable automation frameworks using Java/JavaScript/TypeScript.
Added 10 days ago
S
Data Architect - Canada Region
Slalom
Vancouver, BC · Greater Vancouver Metropolitan Area
- Full-time
Hybrid/In office: We are hybrid but there are expectations that if your team leader requires you onsite that you are able to meet those expectations/requirements
Added 10 days ago
A
Développeur Full Stack (Java, Angular) / Full Stack Developer (Java, Angular)
Akkodis
Montreal, QC
- Contract
Mode de travail : Hybride – Présence au bureau 3 jours par semaine (incluant l'intégration initiale sur site)
Added 11 days ago
PG
Backend developer with Java & Python
Pacer Group
Mississauga, ON
- $120,000 to $125,000 CAD / year
- Full-time
Job Title: Backend developer with Java & Python
Added 11 days ago
M
Sr. Full Stack Liferay Developer
McKesson
Mississauga, ON
- Full-time
Work Arrangement: Hybrid model with onsite attendance required 2 days per week in Mississauga, ON or Ville Saint-Laurent, QC.
Added 14 days ago
C
Java Azure Developer (Supply Chain Applications)
Cognizant
Mississauga, ON
- $57,600 to $105,000 CAD / year
- Full-time
We are seeking a Java Azure Developer (Supply Chain Applications) to join our team in Mississauga, Ontario. In this hybrid role, you will design, develop, and optimize enterprise…
Added 14 days ago
WT
Senior Angular Developer
Wissen Technology
Montreal, QC
- Full-time
Location: Montreal, QC (Day 1 Onsite/Hybrid) – Fulltime
Added 14 days ago
QT
Senior Linux Systems Engineer - Automation & Performance Monitoring (6-Month Contract)
Quantum Technology Recruiting Inc. (QTR)
Toronto, ON
- $70 to $90 CAD / hour
- Contract
Location: Toronto, ON (Hybrid - approximately 1 day onsite per week)
Added 15 days ago
AE
Campus Graduate Full-Time Engineer - 2027 AI Engineering, Enterprise Technology Services- Toronto, Ontario, CN
American Express
Toronto, ON
- $82,000 to $124,000 CAD / year
- Full-time
Experience programming in Python and familiarity with one or more languages such as Java, JavaScript, Go, C/C++, or similar technologies.
Added 15 days ago
A
IT Technical Developer (IBM Maximo)
Airswift
Calgary, AB
- Contract
This role follows a primarily onsite work model, with flexibility for one remote workday per week
Added 15 days ago
R
Software Development Engineer II (SDE2), Trust Experience
Remitly
Burnaby, BC
- Full-time
Under the Company's current hybrid-work expectations, employees in this position work onsite Tuesday through Thursday each week. Additional onsite attendance may be required based on…
Added 15 days ago
M
Full-Stack Developer
McAfee
Toronto, ON · UNAVAILABLE, Ontario
- Full-time
This is a Hybrid position located in either Waterloo or Toronto, Canada. You may be required to be onsite on an as-needed basis. We are only considering candidates within a commutable…
Added 16 days ago
AC
Workday Integration Developer
Adastra Corporation
Markham, ON
- Other
We are looking for a hands-on Workday Integration Developer to design, build, and support secure and reliable integrations between Workday and enterprise systems. The role will focus…
Added 16 days ago
AC
Fullstack Developer
Adastra Corporation
Markham, ON
- Contract
We are looking for a Full Stack Developer to build scalable, production-ready applications that combine modern backend engineering with advanced AI and Generative AI capabilities. The role…
Added 17 days ago
ET
Java Technical Lead � Backend Development, AWS & DevOps
Expedite Talent Solutions
Montreal, QC
- Full-time
L*** backend Java development and integration initiatives supporting enterprise document management workflows.
Added 17 days ago
ET
Java Technical Lead – Backend Development, AWS & DevOps
Expedite Talent Solutions
Montreal, QC
- Full-time
L*** backend Java development and integration initiatives supporting enterprise document management workflows.
Added 17 days ago
PC
Senior Software Development Engineer in Test (SDET) / Quality Engineering Architect
Pyramid Consulting, Inc
Mississauga, ON
- $70 to $79 CAD / hour
- Contract
Certifications such as Certified Software Test Architect, AWS/GCP Cloud Architecture, or Java SE Professional Developer Certification are advantageous.
Added 17 days ago
D
Software Engineer in Test
Dexian
Mississauga, ON
- Other
…cloud-native test automation frameworks from scratch using Core Java, BDD/TDD principles, and modern architectural design…
Added 17 days ago
D
Software Engineer in Test
Dexian
Mississauga, ON
- Contract
Core Programming & Design: Expert-level proficiency in Core Java (collections, multithreading, concurrency, OOP design patterns).
Added 17 days ago
D
Java Developer
Dexian
Mississauga, ON
- Other
Design and build backend services and APIs, primarily in Java and Spring Boot
Added 17 days ago
D
Java Full Stack Developer
Dexian
Toronto, ON
- Contract
We are seeking experienced Java Developers and Technical Architects to design, develop, and modernize enterprise applications. Candidates should have strong expertise in Java, Spring Boot,…
Added 18 days ago
E
Application Monitoring Specialist
Experis
Mississauga, ON
- $55 to $65 CAD / hour
- Contract
Location: Mississauga, ON (Hybrid, 1-2 days onsite)
Added 18 days ago
WT
Java Fullstack developer
Wissen Technology
Calgary, AB
- Full-time
Build scalable backend services using Java, Spring Boot, and related frameworks.

Adastra Corporation

Fullstack Developer

175 Commerce Valley Dr. W Suite 301, Markham, ON, L3T 7P6, Canada

Contract

Apply on careers.adastracorp.com About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Oct 28, 2027
Posting language: English
Posted: Oct 28, 2026

Original job description

Overview

We are looking for a Full Stack Developer to build scalable, production-ready applications that combine modern backend engineering with advanced AI and Generative AI capabilities. The role will focus primarily on developing backend services and reusable SDKs using Python and Java, as well as integrating technologies such as large language models, retrieval-augmented generation, agentic AI, and model context protocols. You will also contribute to frontend development, cloud-based AI platforms, and the delivery of secure, reliable, and maintainable enterprise solutions

Primary Location: Toronto, ON or Brampton, ON

Work Model: Hybrid 4-Days Onsite

Employment Type: Contractor

RESPONSIBILITIES:

Design, develop, and maintain scalable backend services, APIs, and reusable SDKs using Python and Java
Build backend solutions using FastAPI, Spring Boot, and microservices architecture
Develop AI-powered applications using large language models, retrieval-augmented generation, agentic AI, LangChain, LangGraph, and Model Context Protocol
Integrate commercial and open-source AI models into enterprise applications
Build responsive web applications using React, TypeScript, and modern frontend frameworks
Integrate frontend applications with backend APIs and AI-powered services
Develop and integrate AI platform capabilities, including model gateways, prompt management, vector databases, evaluation frameworks, and guardrails
Deploy and support applications using cloud platforms, Docker, Kubernetes, and CI/CD pipelines
Implement automated testing, observability, performance optimization, and secure API design
Support enterprise authentication and authorization requirements
Collaborate with engineering, product, and cross-functional teams to deliver scalable and maintainable solutions

QUALIFICATIONS, SKILLS & EXPERIENCE:

Strong hands-on backend development experience using both Python and Java
Experience designing and developing scalable APIs, backend services, and reusable SDKs
Hands-on experience with FastAPI, Spring Boot, and microservices architecture
Strong experience developing AI and Generative AI applications
Experience working with large language models, retrieval-augmented generation, and agentic AI
Hands-on experience with technologies such as LangChain, LangGraph, and Model Context Protocol
Experience integrating commercial or open-source AI models into applications
Experience developing frontend applications using React and TypeScript
Understanding of software engineering principles, API design, automated testing, and application security
Experience delivering reliable, scalable, and production-ready software solutions
Strong collaboration and problem-solving skills

NICE TO HAVE:

Experience with AI platform capabilities such as model gateways, prompt management, vector databases, evaluation frameworks, and guardrails
Experience with Google Cloud Platform or another major cloud platform
Experience with Docker and Kubernetes
Experience building and maintaining CI/CD pipelines
Experience with observability, application monitoring, and performance optimization
Knowledge of enterprise authentication and authorization patterns
Experience supporting the full lifecycle of AI-powered applications

ABOUT ADASTRA

Adastra is a global leader in AI and data-driven transformation, helping organizations lead with artificial intelligence - responsibly, strategically, and at scale. With over 25 years of experience, Adastra empowers enterprise clients to unlock business value through data innovation, operational excellence, and smart customer engagement.

Trusted by some of the world’s most prominent brands, Adastra delivers end-to-end solutions grounded in thoughtful strategy, robust governance, and deep technical expertise. From defining vision to ensuring execution, Adastra guides organizations through every stage of their AI, data and cloud journey - building future-ready capabilities and delivering measurable, lasting impact.

Adastra serves clients across key industries including financial services, automotive, manufacturing, technology, media and telecom (TMT), healthcare, retail, and professional services. The company employs more than 2,000 professionals across North America, Europe, and Asia.

WHAT WE OFFER

Opportunity for advancement and career progression
Competitive compensation
Successful referral program
The opportunity to work with one of Canada’s 50 Best Managed Companies
Satisfaction of working for a reputable company
A flexible, dynamic, and diverse workplace

EQUAL OPPORTUNITY EMPLOYER

In our commitment to promote fair and equitable treatment of all employees and applicants, Adastra Corporation provides equal employment opportunities for all individuals regardless of age, sex, disability, race, ethnic origin, citizenship, creed, sexual orientation, marital status, or any other ground as described in the Ontario Human Rights Code. In addition, accommodation will be provided during the hiring process. Adastra Corporation’s implementation and support of employment initiatives, encourage diversified labour force participation and equal access to opportunities based on merit and performance.

AI Usage - Our hiring process includes the use of AI-enabled tools to screen applications (e.g., keyword matching, qualification ranking). A human recruiter reviews all AI-generated shortlists to make informed hiring decisions.

There has been an increased instance of fraudulent job offers coming from people posing as Adastra HR employees. Please note that Adastra will never request fees as part of our recruiting process and any emails sent to you that are not from ‘@adastragrp.com’ or ‘@talent.icims.com’ are fraudulent. All employment offers are sent via DocuSign and if you receive an employment offer from a suspicious email and not via DocuSign, it is fraudulent.

Contact careers@adastragrp.com to inquire about jobs at Adastra, to report a suspicious request for money or personal information from external websites or suspicious employment offers.

Apply on careers.adastracorp.com About employer

More about this job

Responsibilities

Design and develop scalable backend services, APIs, and reusable SDKs using Python and Java. Build AI-powered applications integrating large language models, retrieval-augmented generation, and agentic AI frameworks.

Requirements

Requires strong hands-on experience in backend development with Python and Java, alongside proficiency in microservices and AI technologies. Candidates must also demonstrate experience in frontend development with React and TypeScript, and cloud-based deployment.

Skills

Python
Java
FastAPI
Spring Boot
React
TypeScript
Microservices
Large Language Models
Retrieval-Augmented Generation
LangChain
LangGraph
Docker
Kubernetes
CI/CD
API Design
Cloud Platforms

Benefits

Competitive compensation
Career progression opportunities
Referral program

Visa sponsorship

Not detected in the job text

Keywords

Fullstack Developer
Python
Java
FastAPI
Spring Boot
Microservices
Large Language Models
Retrieval-Augmented Generation
Agentic AI
LangChain
LangGraph
Model Context Protocol
React
TypeScript
Docker
Kubernetes
CI/CD
Cloud Platforms
Vector Databases
Prompt Management
API Design
Observability
Performance Optimization
Enterprise Authentication
Software Engineering
AI Platform
Data Innovation
Generative AI
Scalable Applications
Production-ready

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Work requirements

Jobs in Canada