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Added 21 mins ago
B
Frontend Engineer - Dedicated Inference
Baseten
Montreal, QC
- $190,000 to $300,000 USD / year
- Full-time
…applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing…
Added 21 mins ago
B
Software Engineer - Dedicated Inference
Baseten
Montreal, QC
- $165,000 to $330,000 USD / year
- Full-time
…applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing…
Added 21 mins ago
B
Software Engineer - Dedicated Inference
Baseten
Toronto, ON
- $165,000 to $330,000 USD / year
- Full-time
…applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing…
Added 21 mins ago
B
Frontend Engineer - Dedicated Inference
Baseten
Toronto, ON
- $190,000 to $300,000 USD / year
- Full-time
…applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing…
Added 1 hour ago
Q
FY27 Intern - AI Software Engineering Co-op - Canada (4 months)
Qualcomm
Toronto, ON
- Full-time
…looking for someone who has hands-on experience with Node.js, React, PostgreSQL, JavaScript/TypeScript, modern web technologies and project management, plus an interest in applying AI to…
Added 1 hour ago
C
Application Programmer
Collabera
Mississauga, ON
- $70 to $80 USD / hour
- Full-time
Working knowledge of HTML, CSS, JavaScript, and frontend frameworks such as React or Angular.
Added 2 hours ago
Q
FY27 Intern - AI Software Systems Co-op - Canada (4 months)
Qualcomm
Toronto, ON
- Full-time
…Firmware Development and also good understanding of Node.js, React, PostgreSQL, JavaScript/TypeScript/python, modern web technologies and project management, plus an interest in applying AI…
Added 2 hours ago
SG
Account Manager - Existing Installations
Schindler Group
Toronto, ON
- $62,000 to $80,000 CAD / year
- Full-time
Persuasion: Motivate customers to act or react in a manner to support business growth
Added 3 hours ago
SG
Account Manager - Existing Installations
Schindler Group
Hamilton, ON
- $62,000 to $80,000 CAD / year
- Full-time
Persuasion: Motivate customers to act or react in a manner to support business growth
Added 3 hours ago
GE
Hospitality F&B Assistant Manager
Grey Eagle Resort & Casino
Calgary, AB
- Full-time
…team and takes ownership of daily operations. The ability to react to situations that need a sense of urgency, to lead by example and assist in the training of new colleagues. Monitoring…
Added 3 hours ago
PM
Clinical Education Manager
Pride Mobility Products Corporation
Canada
- Full-time
Added 3 hours ago
RI
Frontend Developer
Rivago Infotech Inc
Toronto, ON
- Contract
· We are currently seeking a highly skilled and experienced React Developer who also has proficiency in AWS.
Added 3 hours ago
AC
Backend Software Developer
ATS Corporation
Cambridge, ON
- $36.54 to $50.24 CAD / hour
- Full-time
Responsibilities as Backend Software Developer:
Added 3 hours ago
X
Senior Software Engineer
Xsolla
Canada
- Full-time
You're a hands-on mobile engineer with 4+ years of experience, primarily in React Native across iOS and Android, who's ready to step into (or continue in) a tech lead role. You've shipped…
Added 3 hours ago
RE
Backend Python Developer - GenAI Focus
Randstad Enterprise
Montreal, QC
- Contract
Job Title: Backend Python Developer - GenAI Focus
Added 3 hours ago
UC
AI Developer
UniSysTech Consulting
Toronto, ON · Greater Toronto and Hamilton Area, ON
- Other
We are seeking an experienced AI Developer (Mid to Senior Level) to lead the design, development, and deployment of enterprise-grade Artificial Intelligence and Machine Learning solutions.…
Added 3 hours ago
CO
Application & Integration Technical Analyst
City of Saint John
Saint John, NB
- Full-time
Added 3 hours ago
TC
M365 (Microsoft) – Tech Lead
Tata Consultancy Services
Vancouver, BC
- Full-time
Lead development of SPFx web parts/extensions, reusable components and integrations using TypeScript, React, JavaScript, REST APIs, Microsoft Graph and approved development standards.
Added 3 hours ago
U
Full Stack Engineer
Ultrassure
Toronto, ON
- Full-time
Experience with TypeScript and modern React or Next.js applications
Added 3 hours ago
T
Senior Full Stack Developer – FHIR, Java, Node.js, AWS & Healthcare Integration
ThoughtStorm
Toronto, ON
- Contract
Hiring: Senior Full Stack Developer – FHIR & Healthcare Integration
Added 3 hours ago
TG
Stage d'été – Développeur-analyste ou développeuse-analyste, Stratégie et perspectives sur le marché
TMX Group
Toronto, ON
- Full-time
Expérience ou intérêt à l’égard de l’utilisation d’un cadre de travail moderne JavaScript (comme React, Angular ou Vue) et de l’écriture de code en JavaScript et en Python
Added 3 hours ago
SG
Prime Services Risk Advisor
Societe Generale
Montreal, QC
- Full-time
Added 3 hours ago
M
Lead Software Engineer
Mphasis
Toronto, ON
- Full-time
Proficiency writing high-quality, well-tested code using one or more languages (e.g., Python, Next.js, React, Golang, C#), building APIs, and building/using databases (e.g., Postgres,…
Added 3 hours ago
C
Senior Software Developer
Cavtera
Ottawa, ON · Kanata, ON
- Full-time
We’re looking for a Senior Software Developer to join Cavtera’s growing development team.
Added 3 hours ago
C
Senior Full-Stack Engineer / Technical Lead - Onsite
Cognizant
Toronto, ON
- Full-time
Build modern front-end solutions using React, Next.js, and TypeScript.

Adastra Corporation

Fullstack Developer

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

Contract

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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.

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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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