Senior Software Engineer, Back End

We are seeking a highly skilled Senior Backend Software Engineer to join a fast-paced AI start-up with an excellent team. In this role, you will design, build, and maintain the server-side systems and APIs that power our applications. You will work closely with product managers, frontend engineers, and DevOps to deliver scalable, secure, and high-performance solutions for enterprise customers

Key Responsibilities

• Design, develop, and maintain backend services, APIs, and databases
• Write clean, efficient, and well-documented code
• Optimize application performance, scalability, and reliability
• Collaborate with frontend and product teams to integrate features and deliver end-to-end functionality
• Implement best practices in security, data privacy, and compliance
• Participate in code reviews, architecture discussions, and technical planning
• Monitor, debug, and troubleshoot production systems
• Contribute to continuous improvement of development processes and tools

Requirements

• 8+ years -10 years of experience as a Backend Engineer or in a similar role
• Strong proficiency in at least one backend programming language (Python, Node.js, )
• Experience with frameworks such as Spring Boot, Express, Django, or FastAP
• Solid understanding of RESTful APIs, GraphQL, or gRP
• Hands-on experience with databases (SQL and NoSQL
• Familiarity with containerisation and orchestration (Docker, Kubernetes)
• Knowledge of cloud platforms (AWS, GCP, or Azure)
• Strong understanding of system design, distributed systems, and micro-services architecture
• Experience working with infrastructure engineers
• Working knowledge of CI/CD pipelines, Git, and automated testing
• Excellent problem-solving skills and attention to detail
• Strong communication skills and ability to work collaboratively in a cross-functional team
• Experience with event-driven architectures (Kafka, RabbitMQ, etc.)
• Knowledge of DevOps practices and infrastructure as code (Terraform, Ansible, etc.

Nice to have

• Prior experience in a fast-paced startup

What We Offer

• Competitive salary and benefits package, options in an early stage start-up - own part of the company
• Opportunity to work on impactful, large-scale projects with enterprise customers and on very tangible applications of AI
• Flexible working arrangements (remote/hybrid options). 1 day a week in the co-working space if you are within the Greater Toronto Area
• Professional growth and learning opportunities
• Inclusive and collaborative team culture