Senior Fullstack Engineer (AI Focus) - Mediafly

Mediafly is seeking a Senior Fullstack Engineer with a passion for leveraging AI to build enterprise software. Join a collaborative, remote-first team focused on innovation and purpose, helping revenue teams work smarter and achieve measurable impact. You will shape the future of our platform by designing, shipping, and scaling AI-powered features while contributing across our full technology stack.

This is a hands-on and influential role where you'll shape architecture, experiment with new ideas, and see them through to production. Opportunities for leadership, greenfield AI development, and growth in AI, cloud, and DevOps are available.

What You'll Do

• Design and integrate AI workflows into customer-facing products using agentic architectures and orchestration frameworks (e.g., LangChain, LlamaIndex).
• Optimize LLM-powered features for performance, scalability, and cost-efficiency, including prompt engineering, RAG, and system quality evaluation.
• Build scalable, observable, and maintainable web application features across the full stack.
• Architect and implement APIs, databases, and cloud services to support AI and traditional product features.
• Lead all phases of the SDLC, from technical discovery to driving successful outcomes.
• Champion engineering quality, ensuring solutions are testable, observable, maintainable, and secure.
• Mentor engineers and provide technical guidance on best practices.

What You'll Need to Succeed

• Experience: 5+ years of software engineering experience, with at least 2-3 years building SaaS products.
• Fullstack Skills: Proficiency in Python, Node.js, and React (or similar modern frameworks).
• Search Technologies: Hands-on experience with OpenSearch or Elasticsearch.
• AI Mindset: Experience leveraging AI tools (e.g., Claude, Co-pilot) to accelerate development, and a strong understanding of AI concepts.
• AI Development: Experience developing with AI systems such as LLM integrations, AI-powered search, vector databases, RAG pipelines, or agent-driven projects.
• System Design: Proven track record of building scalable, reliable, and secure architectures.
• Collaboration: Strong communication skills, valuing feedback, and enjoying cross-functional collaboration.
• Problem-Solving: Curiosity and ability to tackle complex systems, balancing pragmatism with long-term thinking.

Nice to Have

• Familiarity with orchestration frameworks (LangChain, LlamaIndex) and prompt/embedding design.
• Experience with AI agent protocols (MCP, A2A).
• Exposure to cloud infrastructure and DevOps practices (especially AWS).
• Experience with observability and monitoring tools (Datadog, Grafana).
• A product mindset focused on user experience and business impact.
• Interest in emerging AI technologies.
• Experience building and maintaining CRM integrations.

Compensation

• Salary Range: $120,000 - $155,000 annually

Note: This is a starting point; compensation grows with talent, curiosity, and impact.

Why Mediafly/Dooly?

• Make a significant impact on a product line with multi-million dollar ARR.
• Be part of an exciting inflection point, strengthening our foundation while delivering value.
• Shape the future of our platform by building new features and improving code quality.
• Work with a collaborative, remote-first team.

Benefits

• Remote based in Canada
• Flexible working hours
• Generous Paid Time Off
• Competitive Salary
• Health Benefits
• Transparent Career Paths
• Generous Paid Parental Leave
• Remote Stipend

Location and Work Setup

• 100% remote position.

Mediafly is an equal opportunity employer committed to diversity and inclusion. Recognized as a Best Place to Work by Crain’s, Inc., and BuiltIn.