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Added 10 mins ago
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Principal Optical Engineer
Nokia
Ottawa, ON
- Full-time
We are seeking an experienced Principal Optical Engineer to join Nokia's optical team. You will own calibration, sustaining, and optical integration for our high-speed coherent linecard…
Added 39 mins ago
VC
Senior Temporary Works Inspector H/F
VINCI Construction Grands Projets Hellas S.A.
Toronto, ON · Greater Toronto Area, Canada
- Temporary
As a Temporary Works Inspector, you will support the Temporary Works Engineer in the inspection, verification, and monitoring of temporary works during the construction lifecycle. You will…
Added 39 mins ago
DS
Junior Data Engineer - Blenddata
Dimension Study Association
Engineer, BC
- Full-time
As a Junior Data Engineer, you will collaborate on data-driven solutions for clients such as Rabobank, De Lage Landen and Damen Shipyards. You will build modular data pipelines that unlock…
Added 39 mins ago
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Senior AI Engineer
Perceptic
Engineer, BC
- Full-time
AI-powered scientific workflows: agentic systems, retrieval, tool use, and the evaluation loops that keep them honest
Added 39 mins ago
CE
Mechanical HVAC/Cooling Engineer (Data Center Design)
Colm Engineering Ltd
Vaughan, ON
- Full-time
We are seeking a highly skilled and experienced Mechanical HVAC/Cooling Engineer to join our team. This individual will be responsible for designing and implementing HVAC systems and fire…
Added 39 mins ago
AC
Product Development Engineer – Liquid Cooling
Amphenol Communications Solutions
Markham, ON
- Full-time
…electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive…
Added 39 mins ago
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Java Software Engineer
Dexian
Mississauga, ON
- Contract
…the architecture and implementation of complex distributed systems. You will play a crucial role in analyzing system requirements, designing data flows, and ensuring clean, maintainable,…
Added 39 mins ago
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Senior QA Automation Engineer – Cypress
LTM
Mississauga, ON
- $103,554 to $115,200 CAD / year
- Full-time
Title: Senior QA Automation Engineer – Cypress
Added 41 mins ago
A
Software Engineer (.NET / C# and AI/IoT)
Artelia
Montreal, QC
- Full-time
As a Software Engineer (.NET / C# and AI/IoT) within the Telecommunications team, you will:
Added 55 mins ago
MP
Lead Data Engineer
Municipal Property Assessment Corporation
Pickering, ON
- Full-time
…Science, Data Engineering, Software Engineering, Information Systems or a related discipline, or an equivalent combination of education, training and…
Added 55 mins ago
AI
Staff Engineer
Atlantis IT Group
Toronto, ON
- Contract
As a Staff Engineer supporting the ADT - CODI program within Operations Technology, you will lead the technical design, development, and implementation of complex, multi-platform…
Added 55 mins ago
RT
Electrical Engineer
Rio Tinto
Labrador City, NL
- Full-time
We are looking for an Electrical Engineer to support Technical Services by maintaining, developing and implementing engineering standards, systems and tools that enhance the reliability,…
Added 55 mins ago
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Senior Data Engineer (banking Domain)
E-Solutions
Toronto, ON
- Contract
This position is for a Senior Data engineer with a background in Python, Pyspark, SQL and data warehousing for enterprise level systems. The position calls for someone that is comfortable…
Added 55 mins ago
RI
Data Engineer
Rivago Infotech Inc
Toronto, ON
- Contract
This position is for a Senior Data engineer with a background in Python, Pyspark, SQL and data warehousing for enterprise level systems. The position calls for someone that is comfortable…
Added 55 mins ago
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Data Engineer/Technical Architect
BullTechSystem
Toronto, ON
- Full-time
Define data integration strategies, including ETLELT pipelines, batch processing and real-time.
Added 56 mins ago
VA
Chief Systems Engineer
Volatus Aerospace
Mirabel, QC
- Full-time
We are seeking a Chief Systems Engineer to lead systems engineering activities across a major aerospace platform program, ensuring architecture, requirements, interfaces, and verification…
Added 1 hour ago
TT
Electrical Commissioning Specialist / Lead – Sarnia, ON
TWD Technologies Ltd.
Sarnia, ON
- Contract
As an Electrical Commissioning Specialist / Lead, you will support and lead the commissioning of electrical systems across complex energy and infrastructure projects. The role is…
Added 1 hour ago
M
Stagiaire en automatisation de l'assurance qualité / QA Automation Intern - Hiver/Winter 2027
McKesson
Montreal, QC
- Full-time
…d’acquérir une expérience concrète en automatisation des tests, en intégration et déploiement continus (CI/CD), en tests mobiles et en ingénierie qualité…
Added 1 hour ago
A
Software Engineer (.NET / C# and AI/IoT)
Artelia
Montreal, QC
- Full-time
As a Software Engineer (.NET / C# and AI/IoT) within the Telecommunications team, you will:
Added 1 hour ago
HO
Civil or Structural Engineer X/ F/H
HOUSE OF ABY
Toronto, ON
- $120,000 to $160,000 CAD / year
- Full-time
a Civil Engineer with heavy lifting and material handling experience,
Added 1 hour ago
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Développeur Logiciel Principal.e, Plan de Contrôle - Laboratoire d'IA Souveraine
Mila - Institut québécois d'intelligence artificielle
Montreal, QC
- Full-time
Assurer la maîtrise des adaptateurs et des interfaces d'intégration par lesquels le plan de contrôle configure et gouverne les composants de la plateforme et du runtime d'IA.
Added 1 hour ago
Agentic AI Software Backend & Platform Engineer
Siemens
Kitchener, ON
We are seeking a Backend & AI Engineer, for Siemens Digital Industries Operations Software to help build and scale our Agentic AI platform. The role focuses on solid backend engineering,…
Added 1 hour ago
Dynamics/Powerplatform engineer
Capgemini
Montreal, QC
We are looking for a Senior Microsoft power platform Engineer, who is familiar with AI Builder and Co-Pilots as well as Dynamics and Power Apps. The ideal candidate will have experience…
Added 1 hour ago
AI
Full Stack Engineer
Apptoza Inc.
Toronto, ON
- Contract
Build Gen AI system frameworks, Prompt Engineering, including designing and refining prompts to optimize LLM outputs, implementing Gen AI systems into production.
Added 1 hour ago
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Lead AI .Net Developer
Digitive
Canada
- Contract
…serve as the ground-level technical partner to our Lead AI Engineer. While the Lead AI Engineer establishes the architectural vision and transformation roadmap, you will be the core builder…

Apptoza Inc.

Full Stack Engineer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 5, 2026
Experience: 7+ years of backend development experience in Java or Python
Posting language: English
Posted: Oct 6, 2026

Original job description

Position: Full stack Developer

Location: Toronto, ON (4 days onsite)

Contract: Long Term

What Will You Do?

Designs, develops, and oversees the implementation of advanced technical solutions, ensuring alignment with business objectives and adherence to best practices, while managing the end-to-end technical delivery of projects.

Build Gen AI system frameworks, Prompt Engineering, including designing and refining prompts to optimize LLM outputs, implementing Gen AI systems into production.

Leads development teams in the delivery of capabilities, providing technical direction and guidance to junior developers and team members and ensuring the successful execution of complex assignments and projects

Collaborates with business stakeholders and product owners to translate strategic objectives into actionable technical solutions, leveraging advanced knowledge to address unique and high impact challenges.

You will be responsible for working closely with AI data scientists to support data ingestion and feature engineering, establishing industry best practices, maintaining and managing technical documentations.

Executes on software development tasks or projects, requiring advanced problem solving, decision making and strategic thinking with some ambiguity.

Drives decisions on complex issues to develop clear, actionable recommendations for management, ensuring alignment on processes, tools and services with impact across other areas.

Leverages advanced and creative skills to resolve complex software development related problems, fostering cross functional collaboration to identify and implement innovative solutions.

Leads and facilitates cross functional collaboration efforts, fostering strong internal relationships across the organization and external partnerships to achieve impactful business outcomes.

What Do You Need to Succeed?

Must Have:

7+ years of backend development experience in Java or Python

Strong backend development experience in Java or Python, including REST API and microservices

Strong experience with React and modern frontend development, including Micro-frontend (MFE) architectures and reusable UI components

Hands-on experience or strong understanding of Agentic AI concepts, LLM integrations

Understanding of prompt engineering and Gen-AI Development tools (GitHub Copilot, Windsurf, Claude Code)

Experience with Cloud platforms and technologies (OpenShift, Kubernetes, S3 Object Storage)

Experience working with relational databases particularly PostgreSQL, including schema design, query optimization and performance tuning.

Nice-to Have:

Experience with Spec-driven Development

Experience in Camunda 8 development and customization

Experience with Vector Databases

Understanding of RAG architectures

Strategic thinker with excellent interpersonal skills to work across functions and businesses

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More about this job

Responsibilities

Design and deliver advanced full-stack solutions, including backend services, React interfaces, and production-ready generative AI systems, while ensuring alignment with business objectives and technical best practices. Lead and guide development teams, collaborate with stakeholders and AI data scientists, and support data ingestion, feature engineering, documentation, and cross-functional delivery.

Requirements

Requires 7+ years of backend development experience with Java or Python, strong REST API and microservices skills, and experience with React and micro-frontend architectures. Candidates should also have experience or strong understanding of agentic AI and LLM integrations, prompt engineering, cloud technologies, and PostgreSQL; Spec-driven Development, Camunda 8, vector databases, and RAG are advantageous.

Skills

Java
Python
Backend Development
REST APIs
Microservices
React
Micro-Frontend Architectures
Agentic AI
LLM Integration
Prompt Engineering
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Camunda 8
Vector Databases

Visa sponsorship

Not detected in the job text

Keywords

Java
Python
Backend Development
REST APIs
Microservices
React
Micro-Frontend Architectures
Reusable UI Components
Agentic AI
LLM Integration
Prompt Engineering
Generative AI
GitHub Copilot
Windsurf
Claude Code
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Schema Design
Query Optimization
Performance Tuning
Spec-Driven Development
Camunda 8
Vector Databases
RAG Architectures
Data Ingestion
Feature Engineering
Cloud Platforms

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