Senior Backend Software Developer

Senior Backend Software Developer (AI Agents) Knak is a mission-driven company We are a world-class enterprise email and landing page creation platform focused on making successful and happy customers by providing a powerful, yet easy-to-use creation platform. Our industry-leading SaaS solution is built by Marketers, for Marketers, helping teams launch high-converting emails and landing pages quickly, beautifully, and always on brand. We change the way Marketers work by making them more efficient, while improving conversion rate and staying on brand. We enjoy what we do and have fun along the way. At Knak, our mission is simple but powerful: empower people to be creative with the power of AI. We’re a world-class SaaS platform built by marketers, for marketers—helping teams launch high-converting emails and landing pages quickly, beautifully, and always on brand. With a focus on AI-driven innovation, we’re changing how marketers work by making them more efficient, effective, and inspired. And yes, we have a lot of fun while doing it. The Role: Senior Backend Software Developer, AI Agents We’re looking for an experienced backend developer to help scale the intelligence of Knak’s AI platform. In this role, you’ll design and build the robust systems that power AI agents—enabling them to analyze data, generate complex marketing assets, and deliver incredible value to our customers. This role is highly impactful: you’ll contribute to architecture decisions, mentor teammates, and collaborate across engineering and product to shape the future of marketing automation. What You’ll Be Doing Build reliable APIs : Develop and maintain RESTful APIs with Laravel (PHP), 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. What You Should Bring 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 Background with LLMs, LangGraph, or AI agent frameworks Prior experience in a fast-growing SaaS company Why You’ll Love Working at Knak At Knak, culture is our first pillar . We’ve been recognized as one of Ottawa’s Best Places to Work 2024, and we’re proud to offer: Competitive salary and equity Comprehensive benefits and paid vacation Life leave days (because life happens) Regular team lunches and offsites A people-first environment with real opportunities to grow your career What We Offer We have four foundational pillars: Culture, customers, product and growth. Culture is our number one pillar because we know it is at the core of building a strong company that can build amazing products and delight our customers. We hire smart, positive people who want more than a typical nine-to-five, and we invest in your career growth. We offer a rewarding work environment as acknowledged by Ottawa’s Best Places to Work 2024. We provide competitive salaries, equity, great benefits, paid vacation, Life leave days, team lunches and off-sites, and opportunities for your career growth. If this sounds like something you’re looking for, we’d love to hear from you If you don’t see yourself fully reflected in every job requirement listed on the posting above, we still encourage you to reach out and apply. Research has shown that women and underrepresented groups often only apply when they feel 100% qualified. We strongly encourage applicants of all genders, ages, ethnicities, cultures, abilities, sexual orientations, and life experiences to apply. Knak believes in creating an inclusive, barrier-free working environment. If you require ANY accommodation to the interview process please contact Privacy policy information may be viewed by clicking here. Apply for this job * indicates a required field First Name * Last Name * Preferred First Name Email * Phone Resume/CV Enter manually Accepted file types: pdf, doc, docx, txt, rtf Create a Job Alert #J-18808-Ljbffr