Senior Full-Stack Developer

Premier Construction Software; Markham; Hybrid; CAD 95,000 - 105,000; Full time

Job summary

Premier Construction Software seeks a Senior Full-Stack Developer to design, develop, and evolve its cloud-native SaaS platform from its Markham office. The role combines web, API, and cloud work with a strong focus on scalable architecture and AI-enabled tooling.

You will build frontend in Angular/React and backend in C#/.NET Core, with SQL Server and Azure services. Hybrid work requires 1–2 visits monthly to the Markham, ON campus.

Qualifications

• 7+ years of professional software development experience.
• Strong expertise in: C#, .NET / ASP.NET Core, SQL Server, REST APIs, Entity Framework, Azure Cloud Services.
• Strong front-end experience with: Angular, TypeScript, HTML5, CSS/LESS.
• Experience developing scalable SaaS applications.
• Experience with Azure DevOps, pipelines, and release management.
• Strong knowledge of software architecture and design patterns.
• Experience performing code reviews and mentoring developers.

Responsibilities

• Design, develop, and maintain scalable enterprise applications across web, API, and cloud platforms.
• Build modern front-end applications using Angular and React.
• Develop backend services and APIs using C#, .NET, and ASP.NET Core.
• Design and optimize SQL Server databases, queries, and stored procedures.
• Contribute to architecture decisions, technical design reviews, and development standards.
• Build and consume RESTful APIs and third-party integrations.
• Develop cloud-native solutions within Microsoft Azure.
• Participate in code reviews, mentoring, and engineering best practices.
• Collaborate closely with Product, QA, Support, and DevOps teams.
• Troubleshoot complex production issues and implement sustainable solutions.
• Leverage AI-assisted development tools to improve productivity, quality, and delivery speed.
• Support CI/CD pipelines and automated deployment processes through Azure DevOps.

Skills

C#

ASP.NET Core

Angular

React

TypeScript

SQL Server

REST APIs

Azure Cloud

Entity Framework

Azure DevOps

Tools

Visual Studio 2022

SQL Server Management Studio

Postman

Azure Storage Explorer

Job description

• Visual Studio 2022

Job Description:

Senior Full-Stack Developer

Location: Hybrid (Full-Time)

Note: This role requires 1-2 times monthly to our Markham, ON office.

Department: R&D

Reports To: Development Manager / Director of Engineering

Salary Range: $95,000 - $105,000 CAD

About Premier Construction Software

Premier Construction Software is a leading cloud-based ERP platform serving the construction industry. Our platform combines financial management, project management, mobile solutions, reporting, integrations, AI-enabled capabilities, and modern cloud infrastructure to help construction companies operate more efficiently.

We are looking for a highly experienced Senior Full-Stack Developer who thrives in a fast-paced environment and enjoys solving complex business and technical challenges. You will play a key role in designing, developing, and evolving our cloud-native SaaS platform while helping shape the future of AI-driven software delivery.

Key Responsibilities

• Design, develop, and maintain scalable enterprise applications across web, API, and cloud platforms.
• Build modern front-end applications using Angular and React.
• Develop backend services and APIs using C#, .NET, and ASP.NET Core.
• Design and optimize SQL Server databases, queries, and stored procedures.
• Contribute to architecture decisions, technical design reviews, and development standards.
• Build and consume RESTful APIs and third-party integrations.
• Develop cloud-native solutions within Microsoft Azure.
• Participate in code reviews, mentoring, and engineering best practices.
• Collaborate closely with Product, QA, Support, and DevOps teams.
• Troubleshoot complex production issues and implement sustainable solutions.
• Leverage AI-assisted development tools to improve productivity, quality, and delivery speed.
• Support CI/CD pipelines and automated deployment processes through Azure DevOps.

Required Qualifications

Technical Skills

• 7+ years of professional software development experience.
• Strong expertise in:
  • C#
  • .NET / ASP.NET Core
  • SQL Server
  • REST APIs
  • Entity Framework
  • Azure Cloud Services
• Strong front-end experience with:
  • Angular
  • TypeScript
  • HTML5
  • CSS/LESS
• Experience developing scalable SaaS applications.
• Experience with Azure DevOps, source control, pipelines, and release management.
• Strong knowledge of software architecture and design patterns.
• Experience performing code reviews and mentoring developers.

What Success Looks Like

Within your first 90 days, you will:

• Become productive within the Premier codebase.
• Contribute features and bug fixes across Cloud, Mobile, API, and Add-on platforms.
• Participate in architecture discussions and technical reviews.
• Demonstrate strong ownership and accountability for deliverables.
• Embrace AI-assisted development practices and engineering excellence standards.

Preferred Characteristics

• Strong problem-solving skills.
• Excellent communication and collaboration abilities.
• Bias for action and continuous improvement.
• Ability to work independently while supporting team success.
• Passion for modern software engineering and emerging AI technologies.
• Comfortable working in a globally distributed development team.

Technology Stack

Backend

• C#
• .NET / ASP.NET Core
• SQL Server
• Entity Framework
• REST APIs
• OData

Frontend

• Angular
• React
• TypeScript
• JavaScript
• HTML5
• CSS / LESS

Cloud & DevOps

• Microsoft Azure
• Azure App Services
• Azure SQL
• Azure Storage
• Azure DevOps
• CI/CD Pipelines

AI & Productivity

• Cursor AI
• GitHub Copilot
• Microsoft Copilot
• Azure OpenAI

Development Tools

• Visual Studio 2022
• SQL Server Management Studio
• Postman
• Azure Storage Explorer

Business Unit

Premier

Scheduled Weekly Hours

37.5

Number of Openings Available

1

Worker Type

Regular

More About Jonas Software

Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets, Jonas is comprised of over 65 distinct brands, each a respected leader in its domain.

Jonas’ vision is to be the branded global leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of “Software for Life.” We are committed to technology, product innovation, quality, and exceptional customer service.

Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees.

Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We’re a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P/TSX 60 Index.