Senior Software Engineer, AI & Fullstack

Mediafly; Montreal; Remote; CAD 120,000 - 140,000; Full time

Job summary

A leading company seeks a Senior Software Engineer specializing in AI and Fullstack development to design, build, and optimize features. This remote role offers the opportunity to influence architecture and deliver impactful solutions for thousands of users across the platform. Join a collaborative team focused on cutting-edge technology and innovative solutions.

Benefits

Generous Paid Time Off

Remote Stipend

Qualifications

• Fluency in fullstack development, particularly with Python, Node.js, and React.
• Hands-on experience with AI systems and relevant workflows.
• Proven ability to design scalable and robust systems.

Responsibilities

• Design and integrate AI workflows into customer-facing products.
• Optimize LLM-powered features for performance and cost-efficiency.
• Lead and collaborate on all portions of the SDLC.

Skills

Fluency in fullstack development

Pragmatic AI Experience

Architectural Skills

Collaboration & Communication

Curiosity & Problem-Solving

Product Mindset

Versatility & Leadership

Job description

Senior Software Engineer, AI & Fullstack

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Senior Software Engineer, AI & Fullstack

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This range is provided by Mediafly. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

CA$120,000.00 / yr - CA$140,000.00 / yr

Who we are :

Mediafly is the leading revenue enablement platform market-facing teams use to plan, predict, coach, and engage at the highest levels. Our unified suite of solutions create immersive buyer experiences; enable sellers to lead with value, allow managers to scale coaching, and empower leaders to forecast with confidence. In today’s unpredictable market, Mediafly is the key to delivering predictable efficient growth.

We’re looking for a Senior Software Engineer with expertise in fullstack development and experience building or integrating AI-driven systems. In this role, you'll design, build, and optimize features powered by AI, while contributing broadly to our product stack. You'll collaborate closely with product, design, and infrastructure teams to ship high-impact capabilities and shape technical direction.

This is an individual contributor (IC) role with broad scope : you’ll influence architecture, lead through technical discovery and execution, and tackle complex engineering challenges head-on.

At Mediafly, you’ll help build the future of our multi-million ARR platform, delivering AI-driven workflows that directly impact thousands of users. Your contributions won’t be lost in the noise; they’ll help define what’s next.

Responsibilities of a Senior Software Engineer :

• Design and integrate AI workflows into customer-facing products using agent-like architectures or orchestration frameworks (e.g., LLamaIndex, LangChain)
• Optimize LLM-powered features for performance, scalability, and cost-efficiency. This may include prompt engineering, retrieval-augmented generation (RAG), and evaluation of system quality—not necessarily model fine-tuning
• Work fullstack to build scalable, observable, and maintainable web application features
• Architect and implement APIs, databases, and cloud services to support both AI and traditional product features
• Lead and collaborate on all portions of the SDLC including technical discovery to break down large, complex, and ambiguous problems into clear, actionable initiatives and tasks to drive successful outcomes
• Champion engineering quality, ensuring solutions are testable, observable, maintainable, and secure
• Mentor engineers and provide technical guidance on best practices

You will be successful in this role with (Required) :

• Required :
• Technical Breadth : Fluency in fullstack development, particularly with Python, Node.js, and React. You've built and maintained production-grade systems with meaningful architectural ownership
• Pragmatic AI Experience : Hands-on experience working with AI systems—such as AI agents, AI-powered search, RAG pipelines, or integrating LLMs via orchestration frameworks. You may have worked with prompt design, embeddings, or vector databases.
• Architectural Skills : Proven ability to design scalable, distributed, and robust systems
• Collaboration & Communication : You value open discussions, give and receive feedback well, and thrive in a collaborative environment
• Curiosity & Problem-Solving : You love diving deep into complex systems, understanding how they work, and finding creative ways to improve them. Whether it's optimizing existing architecture or rethinking processes, you bring a thoughtful approach to problem-solving. You’ve likely worked on challenging tech before and enjoy the satisfaction of making things more efficient, scalable, and future-proof
• Product Mindset : You care about more than just the code—you’re curious about the why behind what you’re building. You think about the business impact, user experience, and long-term value of your work, ensuring that technical decisions align with broader company and customer goals
• Versatility & Leadership : You’re comfortable switching between research initiatives and hands-on execution. Whether you're engaging in high-level architectural discussions, exploring new opportunities, or rolling up your sleeves to debug and build, you adapt seamlessly to what the situation calls for

Nice to Haves :

• Experience with DevOps with preference for AWS

Location and Work Setup

This is a 100% remote position with a collaborative team that values flexibility and trust. We use modern communication and collaboration tools to stay connected and productive across time zones.

Ready to make an impact on a product that matters? Apply today and help us build the next generation of our platform!

Why Mediafly / Dooly?

Remote based in Canada

Generous Paid Time Off

Remote Stipend

Mediafly is an equal opportunity employer, which means we do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression. We celebrate diversity and are committed to creating an inclusive environment for all employees. We welcome people of different backgrounds, experiences, abilities and perspectives and encourage all interested individuals to apply.

We have over 100 employees located globally. Thanks to our commitment to employee experience, Mediafly has been recognized as a Best Place to Work from Crain's, Inc. and BuiltIn.

Mediafly's HQ is based in Chicago, IL.

At Mediafly / Dooly, we believe that pay transparency is essential to building trust, promoting fairness, and driving equity in the workplace. By openly sharing salary ranges in our job postings, we aim to empower candidates with clear expectations and ensure that all employees are valued for their contributions. This commitment reflects our dedication to fostering an inclusive culture where everyone has access to opportunity and growth. We believe that transparency not only strengthens our hiring process but also reinforces our core values of integrity, accountability, and respect.

Seniority level

Seniority level

Not Applicable

Employment type

Employment type

Full-time

Job function

Job function

Engineering and Information Technology

Hospitals and Health Care, Non-profit Organizations, and Government Administration

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