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To complete your application, please include a brief description of one project you've built on your own time and the problem it solved. Applications without this will not be considered.
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Jonas Software

Senior Software Engineer (AI Integration & Modernization)

Markham, ON, Canada
Canada - Markham - Ontario, Canada

Expected Salary Range: The expected base salary range for this role is between $120,000 to $130,000 CAD , depending on experience and qualifications · Full-time

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Job details

Pay: Expected Salary Range: The expected base salary range for this role is between $120,000 to $130,000 CAD , depending on experience and qualifications
Job type: Full-time
Experience: 5+ years of experience building and operating production software systems.
Posting language: English
Posted: Sep 1, 2026

Original job description

Job Description:

Senior Software Engineer (AI Integration & Modernization)

Jonas Software

NOTE:

To complete your application, please include a brief description of one project you've built on your own time and the problem it solved. Applications without this will not be considered.

THE COMPANY

Jonas Software is the leading provider of enterprise management software solutions to over 40 different vertical markets. Within these vertical markets, Jonas has acquired over 185 unique and innovative companies. Jonas’ vision is to be the branded global leader across the 40+ vertical markets and to be recognized by customers and respective industry stakeholders as the trusted provider of ‘Software for Life’ and as an ambassador for technology, product innovation, quality, and customer service. Jonas Software is the valued technology partner of over 40,000 customers worldwide in more than 30 countries. Jonas employs over 6,000 skilled individuals consisting of a cross-section of industry experts and technology professionals. Jonas is headquartered in Canada and also operates offices throughout North America, the United Kingdom, Europe, Australia, South America and Africa. Jonas is a 100% owned subsidiary of Constellation Software Inc., headquartered in Toronto and traded on the TSX (CSU.TO).

Compensation & Role Details:

Expected Salary Range: The expected base salary range for this role is between $120,000 to $130,000 CAD , depending on experience and qualifications

Role Type: New Role

AI Disclosure: AI may be used during the hiring process.

POSITION

We are hiring a Senior Software Engineer to own the design and delivery of production AI capabilities across a broad portfolio of software businesses. You will work directly with product and engineering leaders, quickly understand their challenges, and build solutions that deliver real, measurable impact. This is a hands-on, high-autonomy role where you will move across diverse technical environments, bring modern capabilities into legacy and cloud systems, and turn complex problems into reliable, scalable software. You will also shape reusable patterns and technical approaches that will guide how AI is adopted across the organization.

This role is designed for someone who wants true ownership, thrives on variety, and is motivated by solving hard problems that matter. If you are looking for the rare opportunity to influence direction, build high-impact systems, and become a foundational technical leader in Jonas’s emerging AI strategy, this role offers exactly that.

JOB RESPONSIBILITIES:

Lead discovery with business units to understand workflows, identify high-value opportunities, and translate needs into clear technical solution designs.
Design and build AI-enabled systems and full-stack components including APIs, integrations, data pipelines, retrieval systems, and user-facing interfaces.
Deliver end-to-end implementations from prototype through production deployment, ensuring successful rollout, user adoption, and measurable business impact.
Implement modernization upgrades such as API layers, authentication improvements, async processing, and cloud services to enable AI integration across diverse legacy and modern platforms.
Diagnose, evaluate, and optimize AI features and supporting systems by monitoring performance, accuracy, latency, reliability, and cost efficiency.
Build solutions that integrate deeply with existing BU systems including SaaS products, on-prem platforms, ERPs, and CRMs, resolving complex issues across back-end services, data flows, and LLM operations.
Turn one-off solutions into reusable components, templates, and patterns that make it easier to roll out AI capabilities across additional business units.
Help develop playbooks and provide training to enable Business Units to take ownership of AI solutions before moving on to new projects.

JOB QUALIFICATIONS:

5+ years of experience building and operating production software systems.
Experience designing and integrating APIs, working with databases, and developing distributed systems.
Exposure to AI/LLM-based systems such as prompt orchestration, retrieval-augmented workflows, embeddings, or similar production use cases.
Ability to work across the full stack: backend services, front-end components, cloud infrastructure, and AI integrations.
Clear communication skills and comfort working directly with both technical and non-technical stakeholders.
Strong ownership mindset with the ability to deliver practical solutions quickly and iterate based on feedback.
Interest in working across varied technical environments, from modern cloud systems to legacy applications.
Comfort and experience leveraging AI coding agents in SDLC across both greenfield and brownfield contexts.

NOTE:

To complete your application, please include a brief description of one project you've built on your own time and the problem it solved. Applications without this will not be considered.

Business Unit:

Corporate USA

Scheduled Weekly Hours:

37.5

Number of Openings Available:

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.

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More about this job

Responsibilities

Lead the design and delivery of production AI capabilities across diverse software business units. Implement modernization upgrades and build scalable, AI-enabled full-stack systems to drive measurable business impact.

Requirements

Requires 5+ years of experience in production software systems with expertise in API design, distributed systems, and AI/LLM integration. Candidates must possess strong ownership skills and the ability to work across the full stack in both legacy and modern environments.

Skills

Software engineering
AI integration
API design
Cloud infrastructure
Full-stack development
Distributed systems
LLM orchestration
Retrieval-augmented generation
Data pipelines
Modernization
System architecture
Performance optimization
Technical leadership
Stakeholder management
SDLC
AI coding agents

Visa sponsorship

Not detected in the job text

Keywords

AI
LLM
Software Engineering
API
Cloud
Full-stack
Distributed Systems
Modernization
SaaS
ERP
CRM
Data Pipelines
Prompt Orchestration
Retrieval-Augmented Generation
Embeddings
SDLC
Scalability
Latency
Performance Monitoring
Technical Design
Legacy Systems
Integration
Automation
Business Units
Product Innovation
Stakeholder Management
Ownership
Prototyping
Deployment

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