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Added 4 months ago
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Senior API Automation Test Engineer
Cognizant
Toronto, Ontario
- $65,000 to $90,000 CAD / year
- Full-time
We are seeking a Senior Automation Test Engineer with strong Java Programming skills to design, develop, and maintain automated testing frameworks. The role focuses on designing,…
Added 4 months ago
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Senior Software Engineer - Backend
Evertz
Burlington, Ontario
- Full-time
We are seeking a highly motivated Senior Software Engineer to join our growing engineering team. This role offers an exciting opportunity to design and build scalable, production grade…
Added 2 months ago
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Senior Software Engineer, Applied AI (Toronto)
Justworks
Toronto, ON
- $188,000 to $242,000 CAD / year
…spans critical areas including LLM-powered agent design, robust backend service architecture, tool and integration development, and sophisticated knowledge…
Added 3 months ago
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Software Engineer - Team Lead (Forward Deployed)
Volaris Group
Mississauga, ON · Canada - Mississauga, ON
- Full-time
We’re looking for a Software Engineer Team Lead (Forward Deployed) to join our customer engineering team as a player/coach. You’ll work directly with enterprise clients to design,…
Added 3 months ago
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Senior Software Developer, API Platform
Miovision
Remote, Canada
- $150,000 to $170,000 CAD / year
- Full-time
- Remote
Core Systems Engineering and Technical Expertise: Strong backend development experience in Kotlin and/or Java (preferred), or Go, Python, or C, paired with hands-on experience in…
Added 4 months ago
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Senior Back End Engineer (Data Platform)
Forma.ai
Toronto, Ontario
- $150,000 to $190,000 CAD / year
- Full-time
As a Senior Engineer, Data Platform, you are expected to operate with strong ownership and sound technical judgment. This includes identifying risks in the work you own, surfacing edge…
Added 1 month ago
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CCaaS Engineer
Accenture
Toronto, ON · Vancouver, BC · Calgary, AB
- Full-time
Develop AWS Lambda functions and backend integrations in Python, Node.js, or Java.
Added 3 months ago
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Senior Backend & Infrastructure Engineer
Scispot
Canada
- Full-time
We are looking for a senior backend and infrastructure engineer who treats production as a product.
Added 1 month ago
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Senior Software Engineer
ecobee
Toronto, ON
- Full-time
Design, build, and evolve high-load, highly concurrent backend services that directly support ecobee’s products and business goals, including the Energy Control Platform (ECP), ecobee's API…
Added 4 months ago
AT
ead Full Stack Developer (C# / .NET Core / Azure)
Aarorn Technologies Inc
Toronto, Ontario
- Contract
At its core, this role requires excellent problem-solving skills and C#/.Net, Java, Python and full stack coding capability. This role will need to effectively communicate, collaborate, and…
Added 3 months ago
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Software Engineer, AI Document Generation
EvenUp
Remote, Canada
- Full-time
- Remote
…The DocGen team is responsible for designing and building the backend systems that power how legal documents are generated, helping personal injury attorneys produce high-quality work more…
Added 4 months ago
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Founding Software Engineer
Residen
Toronto, Ontario
- $110,000 to $130,000 CAD / year
- Full-time
Backend: REST APIs in Java/Spring Boot, plus the integrations that power the core product.
Added 4 months ago
R
Principal Platform Engineer, Machine Learning
RAVL
Toronto, Ontario
- Full-time
Strong backend engineering (Python/Scala/Java)
Added 4 months ago
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Software Engineer
RAVL
Toronto, Ontario
- Full-time
As a Software Engineer at RAVL, you’ll design, build, and deliver secure, scalable, and high-performance services that form the backbone of modern digital systems. You’ll bring curiosity,…
Added 4 months ago
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Senior Staff Software Engineer, Platform
Rippling
Toronto, ON
- $201,000 to $335,000 CAD / year
Experience building highly reliable backend systems in languages such as Python, Go, Java, or similar
Added 1 month ago
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Senior Full-Stack Software Development Engineer
Remitly
Burnaby, BC
- Full-time
Strong backend fundamentals - experience building, scaling, and operating distributed services in a language such as Go, Java, Python, or Kotlin.
Added 1 month ago
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VP Senior Applied AI Full-Stack Engineer
Citi
Mississauga, ON
- Full-time
…with sub-second latency. You will design and implement robust backend microservices (Java/Spring Boot) optimized for low-latency data retrieval, heavy aggregation, and streaming large…
Added 3 months ago
TH
Senior Backend Software Engineer
Top Hat
Remote, Canada
- Full-time
- Remote
Top Hat is hiring for a Senior Backend Software Engineer on our Aktiv Platform team. This is a great opportunity to drive force behind the technical excellence of our ecosystem. You will…
Added 4 months ago
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Senior Full-Stack Engineer
Wunderkind (formerly BounceX)
Montreal, Quebec · Quebec, Quebec
- Full-time
We are seeking a senior full stack engineer who can help deliver Wunderkind Advertising's roadmap across supply, demand, and platform investments. This includes building and scaling…
Added 2 months ago
VR
Senior Back-end(Java) Developer
VSG Recruitment
Remote, Canada
- Full-time
- Remote
They are looking for a Senior Java Developer to join their Markets Technology team. This individual will play a key role in designing and developing backend services, APIs, and distributed…
Added 4 months ago
S
Senior Mobile Engineer, Agentic Payments
Snaplii
Etobicoke, Ontario
- Full-time
To help build this future, we are looking for a highly experienced mobile engineer to help define the next generation of AI-native payment experiences.
Added 1 month ago
Staff Software Engineer, Backend
DoorDash Canada
Toronto, ON
…problems with elegant technical solutions. You'll operate our backend services and architecture that support all product functionality and will be challenged to consider the big picture --…
Added 4 months ago
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Lead Full Stack Developer
Saatchi & Saatchi Canada
Canada
- Full-time
…picture of a multi-tier platform - React frontend, Spring Boot backend, FastAPI agentic services, agent SDKs on top of LLM providers. You are equally comfortable reviewing a database…
Added 4 months ago
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Cybersecurity Engineer
Localcoin
Toronto, Ontario · Ontario
- $100,000 to $150,000 USD / year
- Full-time
We’re looking for a hands-on Cyber Security Engineer with strong DevSecOps instincts to help design, build, and mature security capabilities across our infrastructure, applications, and…
Added 4 months ago
E
Thanks for visiting our Job Board. Please review our open positions and apply to the positions that match your qualifications.
Evertz
Burlington, Ontario
- Full-time
We are seeking a highly motivated Senior Software Engineer to join our growing engineering team. This role offers an exciting opportunity to design and build scalable, production grade…

Aarorn Technologies Inc

ead Full Stack Developer (C# / .NET Core / Azure)

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Dec 9, 2026
Posting language: English
Posted: Jun 10, 2026

Original job description

Job Title: Lead Full Stack Developer (C# / .NET Core / Azure)
Location: Toronto, ON (4 days/week on-site – this is not negotiable)
Employment Type: Contract
Rate: $50-52 an hour

Job Description
What is the opportunity?
A Lead Full Stack Developer is responsible for designing, developing and maintaining legacy and "Cloud First" applications written primarily in C# and focused on .Net Core and Azure cloud platform. The group is continuously working to improve our Agile, Engineering, and DevOps practices and this role will be expected to actively participate in these efforts.
At its core, this role requires excellent problem-solving skills and C#/.Net, Java, Python and full stack coding capability. This role will need to effectively communicate, collaborate, and influence engineering and business team members and senior management across many projects and departmental boundaries.
This Engineer is an expert professional with deep expertise or unique industry knowledge who uses in depth skill sets to contribute to development of company objectives and principles and to achieve goals in creative and effective ways.
The candidate solves unique and complex problems that have a broad impact on business and develops both front-end and back-end solutions. Designs, develops, updates/maintains solutions and provides technical guidance to other Team Members of technology.
At this level the main challenge is to identify causes and implement solutions to complex & critical business problems in a multifunctional project, assessing and communicating issues of technological impact on the business.
The colleague in this position would be comfortable with the following activities:

Evaluates application software packages and makes recommendations to senior management
Leads & provides guidance to other colleagues in new product reviews, tests, and pilots
Collects & in-depth analyzes business requirements for large & critical projects
Performs in-depth feasibility studies, translates complex requirements into an appropriate design

What will you do?

Perform complex engineering activities inclusive of performance tuning, monitoring, and deployment
Research, influence and implement vendor dependency to simplify the architecture. Design and build APIs to help make use of large data sets, infrastructure and user experience
Implement, maintain and update CI/CD pipelines on a cloud environment
Collaborate with business partners, architects and other groups to identify complex technical and functional needs of systems based on priority
Collaborate with multiple, enterprise-wide distributed performing teams to deliver new capabilities in business applications
Leverage Gen-AI/AI capabilities such as Claude, CoPilot, others – to generate code, test data generation and automated testing. Demonstrate keen interest in leveraging automation for efficient delivery of engineering capabilities
Provides programming expertise and business analysis skills within broad business area, usually as a senior member of a project team, in analyzing, designing, modifying, and developing business applications
Analyzes and develops logical data/database designs, data models across multiple computing environments
Complies with architectural standards and established methodologies and practices

What do you need to succeed?
Must have:

Minimum of 10+ years in C# (.NET Core), Visual Studio, Apache Web Services, XML, and Restful-API/Kafka & event-driven integration capabilities
10+ years of experience in Design and implementing cloud-based architecture using Azure services like Services Logic Apps, Azure Functions, Azure DevOps, Azure Event Hub, Azure Redis, Cosmos DB, Blob Storage, KeyVault, Azure Repos
Develop and deploy scalable, secure, and efficient cloud-based applications using Azure services. Strong background in REST API, system design and application integration, including data mapping between source and target systems
Knowledge of containerization using Docker and Kubernetes
Experience with various Design Patterns (MVC, MVVM, etc.), SOA and other Architectural concepts. Must have development experience in Azure Integration Services
This engineer will need to be very proficient in managing large sets of data, including excellent proficiency with ANSI-SQL querying structured and unstructured data sources (Snowflake, Oracle, SQL, No-SQL)
Experience with ELK, Dynatrace and other logging capabilities
Experience in React, Elastic Search, Snowflake
Experience leveraging Gen-AI capabilities for code generation, testing, test-automation, and test data generation

Nice-to-have:

Coding experience in Python; including experience with libraries such as Pandas or NumPy for data manipulation and visualization
Certification in Microsoft Azure, such as Azure Developer Associate or Azure Solutions Architect Expert
Familiarity with building and training machine learning models (e.g., regression, classification, clustering) using frameworks like Scikit-learn, TensorFlow, or PyTorch

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More about this job

Responsibilities

The Lead Full Stack Developer is responsible for designing, developing, and maintaining legacy and cloud-first applications primarily in C#. This role involves collaborating with various teams to identify complex technical needs and implementing solutions to critical business problems.

Requirements

Candidates must have a minimum of 10 years of experience in C# and Azure services, along with strong skills in REST API and cloud-based architecture. Proficiency in managing large data sets and familiarity with containerization and various design patterns is also required.

Skills

C#
Dotnet Core
Azure
REST API
Cloud Architecture
Docker
Kubernetes
SQL
No-SQL
Gen-AI
Elastic Search
React
Apache Web Services
Event-Driven Integration
Data Modeling
CI/CD

Visa sponsorship

Not detected in the job text

Keywords

C#
Dotnet Core
Azure
REST API
Cloud Architecture
Docker
Kubernetes
SQL
No-SQL
Gen-AI
Elastic Search
React
Apache Web Services
Event-Driven Integration
Data Modeling
CI/CD
Performance Tuning
Monitoring
APIs
Business Analysis
Agile
DevOps
Software Development
Technical Guidance
Feasibility Studies
Data Mapping
Logging Capabilities
Machine Learning
Python
Pandas

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