Senior Backend Engineer - AI-First, Cloud-Native (Remote)

CORA Group; United States; Remote; USD 93,000 - 122,000; Full time

Job summary

Jonas Software in Canada seeks a Senior Software Engineer with an AI-first mindset to design and implement core backend systems using .NET/C#, CQRS, and DDD. You will work in a cloud-native AWS environment, integrating PostgreSQL, RabbitMQ, and Docker, while mentoring peers and shaping engineering standards.

You will own major components of a new SaaS platform, applying AI-first workflows and event-sourced patterns to deliver scalable, reliable software.

Qualifications

• AI-first mentality with practical experience using AI tools to accelerate development.
• Senior-level experience building production systems with C#/.NET
• Hands-on experience with Event Sourcing and CQRS in real-world systems
• Strong working knowledge of Domain-Driven Design (DDD)
• Experience with Vertical Slice architecture (or similar modular service boundaries)
• Solid experience with PostgreSQL
• Experience with asynchronous messaging and integration patterns, ideally RabbitMQ
• Experience containerizing services with Docker
• Experience building/operating cloud-hosted applications, ideally on AWS
• Familiarity with agentic AI concepts (autonomous workflows, tool-using agents, orchestration, evaluation/guardrails)
• Strong ownership mindset: you ship, you improve, you operate, you lead

Responsibilities

• Own major components of a new SaaS platform from design through production
• Build event-sourced, CQRS-based services in C#/.NET using DDD principles
• Design clean 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

.NET/C#

Event Sourcing

CQRS

Domain-Driven Design

Vertical Slice architecture

PostgreSQL

RabbitMQ

Docker

AWS

agentic AI concepts

ownership mindset

Tools

Docker

AWS

PostgreSQL

RabbitMQ

MartenDB

Wolverine

Job description

Jonas Software in Canada seeks a Senior Software Engineer with an AI-first mindset to design and implement core backend systems using .NET/C#, CQRS, and DDD. You will work in a cloud-native AWS environment, integrating PostgreSQL, RabbitMQ, and Docker, while mentoring peers and shaping engineering standards.

You will own major components of a new SaaS platform, applying AI-first workflows and event-sourced patterns to deliver scalable, reliable software.