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Added 21 mins ago
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Senior Sub-System Design Engineer
Ericsson
Ottawa, ON
- Full-time
…networks worldwide. We are seeking a Senior Sub-System Design Engineer to join our Product Systems & Integration (PSI) organization, specifically within the Performance & Allocation…
Added 21 mins ago
BP
Field Applications Software Engineer
Botic Partners
Zurich, ON
- Full-time
You will join the applications team to demonstrate and deploy the company's technology on customer systems, across AI, signal-processing and cryptography workloads. The role sits at the…
Added 21 mins ago
HA
Senior Engineer – Systems (Powerplant)
Horizon Aircraft
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Horizon is seeking an open, enthusiastic Senior Engineer – Systems (Powerplant). Your role involves the integration, installation, development, and certification of aircraft propulsion…
Added 36 mins ago
IG
Data Engineer
Insight Global
Toronto, ON
- $50 to $53 CAD / hour
- Contract
…designing, building, and maintaining scalable data pipelines and integration solutions that support enterprise reporting, analytics, and business operations. This role works closely with…
Added 1 hour ago
TC
mechanical design engineer
Trans-United Consultants Ltd.
Mississauga, ON
- $60,000 to $70,000 CAD / year
- Full-time
- On-site
Added 1 hour ago
HA
Senior Engineer – Performance
Horizon Aircraft
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Horizon is seeking an open, enthusiastic Senior Engineer – Performance. Your role involves developing, running, analysing and validating results of the platform performance models for the…
Added 1 hour ago
HA
Senior Engineer – Simulation
Horizon Aircraft
Kawartha Lakes, ON · Lindsay, ON
- Full-time
We are seeking a highly motivated Senior Engineer – Simulation to progress the development of an integrated aircraft simulation environment supporting our next-generation aircraft…
Added 1 hour ago
HA
Senior Embedded Software Engineer
Horizon Aircraft
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Horizon is seeking an open, enthusiastic Senior Embedded Software Engineer. Your role involves designing, developing and maintaining the embedded software that runs on our platform,…
Added 1 hour ago
HA
Senior Embedded DevOps and Software Verification Engineer
Horizon Aircraft
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Horizon is seeking an open, enthusiastic Senior Embedded DevOps and Software Verification Engineer. Your role involves developing, maintaining and applying the engineering infrastructure…
Added 1 hour ago
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Technical Lead (Full-Stack Engineering & AI)
Brainhunter Systems Ltd
ON · Ontario, Canada
- Contract
We are looking for a hands-on Technical Lead and Senior Full-Stack Engineer who can build across the front end, back end, experience engine, and AI/ML layers and establish the engineering…
Added 2 hours ago
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Infrastructure Engineer
taq
Markham, ON
- Full-time
Infrastructure Engineer responsible for filling a critical gap in managing and securing AWS-focused infrastructure with legacy VMware migration, emphasizing automation, patch management,…
Added 2 hours ago
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Research Associate - Astrophotonic Instrumentation
National Research Council Canada / Conseil national de recherches Canada
Victoria, BC
- Full-time
We are seeking an instrumentation scientist or engineer who will play a lead role in the development of new astronomical instrumentation based on fiber optic and photonic chip technologies.…
Added 2 hours ago
TI
Senior HVAC Engineer
Trane Italia
Montreal, QC
- Full-time
…technology. You will assess and interpret existing mechanical systems, support the integration of our AI-driven control platform, and collaborate closely with software engineers and our…
Added 2 hours ago
TI
HVAC engineer
Trane Italia
Montreal, QC
- Full-time
…technology. You will assess and interpret existing mechanical systems, support the integration of our AI-driven control platform, and collaborate closely with software engineers and our…
Added 2 hours ago
TI
Digital Controls Technical Specialist
Trane Italia
Montreal, QC
- Full-time
…driving analytics for greater efficiency, your ideas will help engineer solutions for stronger communities and a sustainable…
Added 2 hours ago
ZT
Cloud Security Engineer - Advanced
Zebra Technologies
Mississauga, ON · CAN - Mississauga, Canada
- Full-time
Partner with internal teams to incorporate security requirements into cloud architecture, modernization, application onboarding, access enablement, and vendor integration efforts.
Added 2 hours ago
ZT
Android Framework/Core OS Software Engineer, Senior
Zebra Technologies
Mississauga, ON · CAN - Mississauga, Canada
- Full-time
The Engineering Customer Response Team (ECRT) is seeking a Senior Software Engineer to provide world-class technical support to global enterprise customers for the Android Operating System,…
Added 2 hours ago
GS
Spécialiste Tests Electrique EGSE (Intermédiaire)
Groupe SII
Montreal, QC
- Full-time
We are looking for an Electronics Test Equipment Engineer to contribute to the development, integration, and validation of ground support equipment used for complex electronic systems in a…
Added 2 hours ago
CC
Composites Fabricator / Finisher
Celerity Craft
Squamish, BC
- Full-time
…uncrewed through to larger manned demonstrators) and need an engineer who owns the control and electrical integration of those…
Added 2 hours ago
IG
Software Developer
Insight Global
Newmarket, ON
- Full-time
…customers worldwide. This role is ideal for a backend-focused engineer who is passionate about developing scalable applications, building robust APIs, and contributing to modern cloud-based…
Added 3 hours ago
AS
Senior Site Reliability / DataOps Engineer
Apex Systems
Toronto, ON
- $40 to $60 USD / hour
- Contract
Apex Systems is seeking a Senior Site Reliability / DataOps Engineer to support a large-scale data modernization initiative within a major Canadian financial institution.
Added 3 hours ago
AS
Full Stack Developer, Java / Angular / AWS
Apex Systems
Toronto, ON
- $45 to $50 USD / hour
- Full-time
The ideal candidate is a hands-on full-stack engineer who leans slightly toward backend development but remains genuinely strong with Angular. They have excellent Java fundamentals,…
Added 3 hours ago
RB
Principal AI Engineer, Agentic Models and Data Platforms
Royal Bank of Canada
Calgary, AB
- Full-time
Architect and implement agentic systems, including tool using agents, workflow orchestrators, and multi step reasoning pipelines that reliably execute business tasks.
Added 3 hours ago
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Field Applications Engineer
Hexagon
Calgary, AB
- Full-time
Hexagon’s Autonomous Solutions division is looking for a Field Applications Engineer - Agriculture to join our team in Canada. Reporting to the Support Manager, Agriculture, this role will…
Added 3 hours ago
IG
Quality Engineer
Insight Global
Toronto, ON
- $40 to $45 CAD / hour
- Contract
Insight Global is seeking an experienced Quality Engineer to join a leading bank as part of their Enterprise Technology and Data team. The successful candidate will be responsible for…

Apptoza Inc.

Full Stack Engineer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 6, 2026
Experience: 7+ years of backend development experience in Java or Python
Posting language: English
Posted: Oct 7, 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 end-to-end technical solutions, including production generative AI systems, prompt engineering, backend services, and frontend capabilities. Lead and guide development teams, collaborate with stakeholders and data scientists, and establish technical practices and documentation.

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 understand agentic AI, LLM integration, prompt engineering, cloud technologies, and PostgreSQL; experience with spec-driven development, Camunda 8, vector databases, and RAG is an advantage.

Skills

Java
Python
Backend Development
REST APIs
Microservices
React
Micro-Frontend Architecture
Agentic AI
LLM Integration
Prompt Engineering
OpenShift
Kubernetes
S3 Object Storage
PostgreSQL
Camunda 8
Retrieval-Augmented Generation

Visa sponsorship

Not detected in the job text

Keywords

Full-Stack Development
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
Schema Design
Query Optimization
Performance Tuning
Spec-Driven Development
Camunda 8
Vector Databases
Retrieval-Augmented Generation
Data Ingestion
Feature Engineering
Cloud Platforms

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