AI-First Backend Engineer for Scalable SaaS (Remote Canada)

Jonas Software; United States; Remote; USD 92,000 - 120,000; Full time

Job summary

Jonas Software, a leading provider of enterprise management software, is seeking a Senior Software Engineer (AI-First, Agentic AI) to shape a new SaaS platform. You will design backend systems using .NET/C#, CQRS, DDD, and event-sourced architectures, in a cloud-native AWS environment.

The role emphasizes AI-driven automation, mentorship, and delivering scalable, reliable software. Based in Canada with remote options, you’ll influence technical direction, establish standards, and collaborate

Qualifications

• AI-first mindset with practical experience using AI tools to accelerate development.
• Senior-level production systems experience with C#/.NET.
• Hands-on with Event Sourcing and CQRS in real-world systems.
• Strong knowledge of Domain-Driven Design (DDD).
• Experience with Vertical Slice architecture or similar modular boundaries.
• Solid PostgreSQL experience.
• Experience with asynchronous messaging, RabbitMQ.
• Docker and AWS for cloud-hosted apps.
• Familiarity with agentic AI concepts and autonomous workflows.
• Strong ownership: ships, improves, operates, leads.

Responsibilities

• Own major components of a new SaaS platform from design through production.
• Build event-sourced, CQRS-based services in C#/.NET using DDD.
• Design domain models, message contracts, and integration patterns using RabbitMQ.
• Deliver cloud-ready solutions using Docker and AWS (deployment, observability, reliability).
• Apply an AI-first approach to engineering: agentic AI tools, automated workflows, code generation/review, test generation, and productivity accelerators.
• Partner with product and engineering leaders to define architecture, standards, and delivery practices.
• Write high-quality, well-tested, maintainable code and raise the bar through reviews and mentorship.

Skills

AI-first mentality

Senior-level experience

Ownership mindset

Domain-Driven Design (DDD)

Event Sourcing

Tools

PostgreSQL

RabbitMQ

Docker

AWS

C#/.NET

Job description

Jonas Software, a leading provider of enterprise management software, is seeking a Senior Software Engineer (AI-First, Agentic AI) to shape a new SaaS platform. You will design backend systems using .NET/C#, CQRS, DDD, and event-sourced architectures, in a cloud-native AWS environment.

The role emphasizes AI-driven automation, mentorship, and delivering scalable, reliable software. Based in Canada with remote options, you’ll influence technical direction, establish standards, and collaborate