Knak

Senior Backend Software Developer, AI Agents

Knak

full-time

Posted on:

Origin:  • 🇨🇦 Canada

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Job Level

Senior

Tech Stack

AWSCloudDockerJavaScriptKubernetesLaravelMicroservicesMySQLNode.jsPHPPython

About the role

  • Build reliable APIs: Develop and maintain RESTful APIs with Laravel, ensuring testability, observability, and performance.
  • Create AI microservices: Build Python and Node.js services for AI agent hosting and LLM interaction, enabling seamless content generation.
  • Design across the stack: Apply object-oriented and functional programming to deliver scalable and maintainable systems.
  • Optimize databases: Tune queries and indexing for MySQL to improve speed and reduce latency.
  • Deploy to the cloud: Use AWS services (Lambda, CDN delivery, optimization) to build secure, scalable infrastructure.
  • Elevate code quality: Lead and participate in code reviews, maintaining high standards across the team.
  • Collaborate cross-functionally: Work with product, design, QA, and DevOps to align solutions with business needs.
  • Mentor engineers: Share knowledge and set a high bar for technical excellence.
  • Contribute to architecture decisions and shape the future of marketing automation.

Requirements

  • 6+ years of backend software development experience
  • Strong proficiency in PHP (Laravel), Python, Node.js, and MySQL
  • Expertise in RESTful APIs, TDD, CI/CD (GitHub Actions)
  • Experience with SaaS architecture, microservices, and AWS
  • Knowledge of observability, performance tuning, and scalability
  • Familiarity with Docker/Kubernetes
  • Excellent problem-solving skills and a collaborative mindset
  • (Nice to have) Experience in AI-powered product development
  • (Nice to have) Background with LLMs, LangGraph, or AI agent frameworks
  • (Nice to have) Prior experience in a fast-growing SaaS company
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