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Added 11 days ago
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Java Full Stack Engineer ( AI Engineering)
Astek
Montreal, QC
- Full-time
Design scalable Java and Spring Boot services, RESTful APIs, and event-driven or microservices-based components with appropriate authentication and authorization.
Added 11 days ago
Lead Software Engineer, Full-Stack Applications - AI Innovation squads
Fitch Group
Toronto, ON
Lead Software Engineer, Full-Stack Applications – Innovation Squads
Added 11 days ago
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Senior Embedded Systems Engineer
Taiv
Winnipeg, MB · Greater Winnipeg Metropolitan Area
- Full-time
We are looking for a Senior Embedded Systems Engineer to join our growing team!
Added 11 days ago
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Principal Android Engineer
Rakuten Advertising
Toronto, ON · CN-Yonge Sheppard Center
- Full-time
We are seeking a visionary Principal Android Engineer to lead the evolution of our client application architecture and platform capabilities. You’ll define and drive the technical direction…
Added 11 days ago
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Lead Software Engineer, Full-Stack Applications - AI Innovation squads
Fitch Group, Inc.
Toronto, ON
- Full-time
Lead Software Engineer, Full-Stack Applications – Innovation Squads
Added 11 days ago
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Senior Reliability Site Engineer (Operations)
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto Atria
- Full-time
We are looking for a Senior Software Engineer who thrives in high-impact environments and brings 7+ years of Java application support, analysis, and development experience. In this role,…
Added 11 days ago
Senior Software Engineer - Orders
Vivid Seats
Toronto, ON
As a Sr. Software Engineer for our Orders team, you will build and support systems responsible for the acquisition of multi-million dollar monthly revenue. You will work on the latest…
Added 11 days ago
OT Systems/Applications Design
Celestica International LP
Newmarket, ON
The Lead Engineer, Systems/Applications is the Site Operational Technology (OT) lead that designs, integrates, and manages complex systems over their life cycles. They are engineering leads…
Added 11 days ago
AI
Full Stack Engineer
Apptoza Inc.
Toronto, ON
- Contract
We are seeking an experienced Lead Full Stack Engineer with strong Java/Python backend development, React frontend expertise, and hands-on knowledge of Generative AI and Agentic AI. The…
Added 11 days ago
Site Operational Technology Lead
Celestica International LP
Newmarket, ON
The Lead Engineer, Systems/Applications is the Site Operational Technology (OT) lead that designs, integrates, and manages complex systems over their life cycles. They are engineering leads…
Added 11 days ago
Senior Software Engineer, Scheduling
Toast
Toronto, ON
We’re looking for a Senior Software Engineer to join in building the Scheduling product as part of Toast’s Team Management Suite for restaurant employers. You’ll play a key roll* in the…
Added 11 days ago
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Senior / Staff Data Engineer (BI) – CEG Team
Agoda
Vancouver, BC
- Full-time
As a Senior/Staff Data Engineer in CEG (Customer Experience Group), you will help design, build, and maintain the data and software foundations that power how CEG Business users serves…
Added 11 days ago
A
Senior / Staff Data Engineer (BI) – CEG Team
Agoda
Toronto, ON
- Full-time
As a Senior/Staff Data Engineer in CEG (Customer Experience Group), you will help design, build, and maintain the data and software foundations that power how CEG Business users serves…
Added 11 days ago
A
Senior / Staff Data Engineer (BI) – CEG Team
Agoda
Montreal, QC
- Full-time
As a Senior/Staff Data Engineer in CEG (Customer Experience Group), you will help design, build, and maintain the data and software foundations that power how CEG Business users serves…
Added 11 days ago
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Lead Software Engineer
Virtusa
Toronto, ON
- Full-time
Job Summary: We are seeking a skilled Cloud DevOps Engineer with expertise in Azure and AWS. The ideal candidate will have end-to-end ownership of projects, translating business…
Added 11 days ago
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QA Automation Engineer with Playwright
Cognizant
Halifax, NS
- Full-time
Lead Quality Engineer role focused on designing and executing advanced automation strategies using Java scripting and Playwright in a hybrid work model. The role spans end to end quality…
Added 11 days ago
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Founding AI Engineer (Forward Deployed)
CGI
Toronto, ON
- Full-time
…they are built. You will work closely with client teams and lead by example through coding, architecture, and mentoring developers and…
Added 11 days ago
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Senior Software Engineer - Backend
Microsoft
Vancouver, BC
- Full-time
The engineer in this role drives initiatives with company-level impact, ensuring our platform can continue to scale, evolve, and support future Microsoft Ads growth.
Added 11 days ago
OH
Senior Quality Assurance Engineer
Ontario Health | Santé Ontario
Toronto, ON
- Full-time
The Senior Quality Assurance Engineer is responsible for ensuring the quality, reliability, and performance of digital solutions through manual and automated testing. The role leads testing…
Added 11 days ago
GC
Senior Software Engineer - GNSS / INS
Garmin Canada
Cochrane, AB
- Full-time
We are seeking a full-time Senior Software Engineer (GNSS / INS) at Garmin's U.S. headquarters in the Greater Kansas City area or at our location in Cochrane, Alberta, Canada. This role is…
Added 11 days ago
AI
Adobe Site Reliability Engineer - Content Delivery Network
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Senior Site Reliability Engineer - AEM - Content Delivery Network
Added 12 days ago
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Staff Software Engineer, Quality & Reliability Platform
fb9e7da1-2660-46a2-9ffc-154a66684510
Remote, Canada
- Full-time
- Remote
BuildOps is looking for a Staff Software Engineer to set and drive our company-wide technical strategy for building, shipping, and operating reliable software.
Added 12 days ago
F
Staff Software Engineer, Quality & Reliability Platform
fb9e7da1-2660-46a2-9ffc-154a66684510
Remote, Canada
- Full-time
- Remote
BuildOps is looking for a Staff Software Engineer to set and drive our company-wide technical strategy for building, shipping, and operating reliable software.
Added 12 days ago
Full Stack Engineer
Scotiabank
Toronto, ON
As a Full Stack Engineer on Scotiabank’s Data & AI Technology team, you will provide senior technical leadership in designing, building, and scaling enterprise data management capabilities…
Added 12 days ago
OH
Senior Quality Assurance Engineer
Ontario Health
Toronto, ON
- Full-time
The Senior Quality Assurance Engineer is responsible for ensuring the quality, reliability, and performance of digital solutions through manual and automated testing. The role leads testing…

Apptoza Inc.

Full Stack Engineer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 20, 2026
Posting language: English
Posted: Oct 21, 2026

Original job description

Role: Lead Full Stack Engineer – AI

Location : Toronto ,ON

Experience: 8+ Years

Job Summary

We are seeking an experienced Lead Full Stack Engineer with strong Java/Python backend development, React frontend expertise, and hands-on knowledge of Generative AI and Agentic AI. The ideal candidate will lead technical design, development, and delivery of scalable enterprise applications while collaborating with AI data scientists and business stakeholders.

Key Responsibilities

Lead end-to-end design, development, and implementation of scalable full-stack applications.
Develop backend services using Java or Python, REST APIs, and microservices.
Build modern React applications using micro-frontend architectures and reusable UI components.
Design and integrate GenAI solutions, LLMs, prompt engineering, and Agentic AI frameworks.
Collaborate with AI data scientists on data ingestion and feature engineering.
Deploy and manage applications using OpenShift, Kubernetes, and S3 Object Storage.
Optimize PostgreSQL schemas, queries, and database performance.
Provide technical leadership, mentor developers, and drive engineering best practices.

Must-Have Skills

7+ years of backend development experience in Java or Python.
Strong experience with REST APIs, microservices, React, and micro-frontends.
Knowledge of Agentic AI, LLM integrations, prompt engineering, and GenAI development tools such as GitHub Copilot, Windsurf, or Claude Code.
Experience with OpenShift, Kubernetes, and S3 Object Storage.
Strong PostgreSQL database design and performance-tuning skills.

Nice-to-Have Skills

Spec-driven development.
Camunda 8 development and customization.
Vector databases and Retrieval-Augmented Generation (RAG).
Strong leadership, communication, and cross-functional collaboration skills.

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More about this job

Responsibilities

Lead the design, development, and delivery of scalable full-stack applications, including backend services, React interfaces, and integrated Generative AI solutions. Collaborate with data scientists and business stakeholders, manage deployments and database performance, and mentor developers while promoting engineering best practices.

Requirements

Requires 7+ years of backend development experience with Java or Python, along with experience in REST APIs, microservices, React, and micro-frontends. Candidates should also have knowledge of Agentic AI, LLM integrations, prompt engineering, OpenShift, Kubernetes, S3 Object Storage, and PostgreSQL performance tuning.

Skills

Java
Python
REST APIs
Microservices
React
Micro-Frontend Architecture
Generative AI
Agentic AI
LLM Integration
Prompt Engineering
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Technical Leadership

Visa sponsorship

Not detected in the job text

Keywords

Java
Python
REST APIs
Microservices
React
Micro-Frontend Architecture
Reusable UI Components
Generative AI
Agentic AI
Large Language Models
Prompt Engineering
GitHub Copilot
Windsurf
Claude Code
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Data Ingestion
Feature Engineering
Spec-Driven Development
Camunda 8
Vector Databases
Retrieval-Augmented Generation
Technical Leadership
Enterprise Applications

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