Staff Engineer

Fullscript

7d • $170,000 - $190,000 • Remote

About The Position

Fullscript is an industry-leading health technology company dedicated to improving patient outcomes. We provide a platform that supports practitioners with clinical insights, lab interpretations, patient analytics, education, and access to high-quality supplements. Our mission is to make care smarter and more human by building tools that save time, simplify decisions, and foster strong connections between practitioners and patients. The Team GSD is Fullscript’s internal AI and automation team, responsible for building shared infrastructure, integrations, and internal tools to enhance company-wide workflows. We are seeking a Staff Developer to contribute to the technical foundation of this team. Our work focuses on addressing real business problems using AI and modern automation to reduce manual effort, streamline workflows, and deliver reliable production tools. We prioritize speed while ensuring our systems are secure, observable, maintainable, and scalable. This is a hands-on individual contributor role focused on internal products and infrastructure. You will design and operate production systems that integrate large language models with company data, tools, and workflows using technologies like MCP, agentic systems, model gateways, and workflow orchestration. You will work with a high degree of autonomy, defining technical paths, challenging assumptions, making pragmatic trade-offs, and managing projects from ambiguity to production. This role is not ticket-driven; at the Staff level, your impact will extend to shaping GSD’s future direction, influencing architectural decisions, partnering with other senior developers, and elevating the team’s technical capabilities through reviews, pairing, documentation, and discussions. We encourage you to explore our engineering culture at builders.fullscript.com.

Requirements

• 8+ years of professional software development experience, including demonstrated impact as a technical leader on complex production systems.
• Hands-on experience building and operating AI-enabled applications in production, including strong familiarity with MCP or comparable tool-use protocols, agents, context management, and LLM integrations.
• A track record of building internal tools, developer platforms, or enterprise systems that were adopted by real users and produced measurable operational impact.
• Deep backend engineering expertise in Ruby, Python, or a comparable language, along with the ability to learn new languages and frameworks as the problem requires.
• Strong systems-design fundamentals, including APIs, integrations, distributed systems, data flows, authentication, authorization, and pragmatic architectural trade-offs.
• Practical cloud and DevOps experience operating reliable systems in AWS or a comparable environment, including CI/CD, containers, serverless infrastructure, observability, and infrastructure as code.
• The ability to work independently through ambiguity, define your own path forward, and drive substantial initiatives to completion without waiting for detailed requirements or a queue of tickets.
• Clear, credible communication and Staff-level influence, with the ability to explain decisions, challenge other experienced engineers constructively, share knowledge, and connect technical work to business outcomes.

Nice To Haves

• Experience with React, TypeScript, or GraphQL and the ability to contribute to full-stack internal applications.
• Experience with n8n, Temporal, or another workflow orchestration platform.
• Familiarity with LLM evaluation and observability platforms such as Langfuse.
• Experience with GitLab CI/CD, Kubernetes, Cloudflare Workers, or similar infrastructure and deployment tooling.
• Experience building technology in healthcare or another regulated environment governed by standards such as HIPAA or SOC 2.

Responsibilities

• Architect and build production-grade internal AI tools and shared platform capabilities used by teams across Fullscript.
• Lead the technical design and delivery of complex AI integrations, including MCP-based tool use, agentic workflows, context layers, model gateways, and workflow automation.
• Independently take ambiguous business problems from technical discovery and architecture through implementation, deployment, measurement, and ongoing operation.
• Develop and maintain the infrastructure that connects approved models with Fullscript’s internal systems, data, APIs, and user workflows.
• Own the reliability, scalability, observability, and security of production AI systems, including model routing, evaluation, access control, and the responsible handling of sensitive data.
• Build internal experiences that are useful to people across the business, contributing across backend services, infrastructure, and user-facing interfaces where the problem requires it.
• Work with GSD teammates, engineers, and business owners to understand high-value workflows and translate them into maintainable technical solutions without becoming dependent on heavy stakeholder oversight.
• Evaluate emerging AI models, frameworks, and patterns through practical experimentation, then make clear recommendations about what Fullscript should adopt, adapt, or avoid.
• Shape GSD’s technical roadmap by identifying reusable platform opportunities, challenging architectural assumptions, and connecting engineering investments to measurable business impact.
• Act as a force multiplier through thoughtful code reviews, pairing, technical guidance, documentation, office hours, and active participation in the broader engineering community.

Benefits

• Remote-first flexibility to work where you work best, with Ottawa, Toronto, or Calgary preferred for this role.
• Flexible PTO and competitive pay, because work-life balance matters
• RRSP/401k match and competitive compensation packages to invest in your future
• Premium benefits package with customizable coverage, paramedical services, and an HSA.
• Fullscript discounts to save on high-quality wellness products
• Continuous learning opportunities to grow your skills and career

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed