Senior Full Stack Developer

About Lexful

Build the Future of KnowledgeOps.

At Lexful, we aren’t just building a tool; we are redefining how the Managed Service Provider (MSP) industry operates. For decades, IT documentation has been static, fragmented, and manual—becoming an operational risk rather than an asset. We are changing that.

As the creators of the industry’s first AI-native IT documentation platform, Lexful turns "stale" data into real-time contextual intelligence. Our mission is to move MSPs away from legacy storage and toward a modern "KnowledgeOps" ecosystem. Through our intelligent assistant, "Ask Lex," we empower thousands of technicians to stop hunting for information and start solving complex problems instantly.

Joining Lexful means joining a team of industry veterans and innovators backed by Top Down Ventures. We are a security-first, product-led company dedicated to eliminating "tribal knowledge" and building the autonomous infrastructure of the future. If you are passionate about AI, automation, and making a massive impact on a global industry, you’ll find a home here.

The Role

We're seeking a Senior Full Stack Developers to participate in the building of scalable systems and infrastructure from the ground up. In this role, you'll help shape how our platform operates, integrates, and scales by combining delightful user experiences, robust backend services, enterprise integrations, and AI-powered capabilities. This is an opportunity to build at 0-to-1 scale, applying deep expertise across the full stack to deliver secure, reliable, and future-ready systems that drive innovation.

You'll contribute to:

• Frontend Features: Develop user workflows incorporating contextually intelligent AI features.
• Integrations & Data Pipelines: Build connectors to enterprise software, design data migration and ingestion systems
• Platform: Security, SOC 2 compliance, multi-tenant architecture, observability, performance at scale
• Core Services: Processing, storage, versioning. Build backend services powering user-facing features
• Infrastructure: AWS ops (ECS, Aurora, S3), CI/CD, monitoring, production reliability

This is a generalist role, you'll flex across domains based on priorities, not stay in a silo. 

What We're Looking For

Must Have:

• 7+ years backend experience, including 2+ years at early-stage startup (0-to-1 experience) with proficiency in both frontend and backend technologies.
• B2B SaaS or enterprise software experience.
• Production systems experience at scale, you know what "production-ready" means
• Product sense, you understand why we build and can influence what we build
• Ownership mindset, you've led initiatives end-to-end
• Strong fundamentals: APIs, databases, distributed systems, security, cloud
• Passionate about code quality with a thorough understanding software development concepts that promote readability, maintainability, and testability
• Actively uses AI tools as part of your daily development workflow for tasks like code generation, debugging, refactoring, and design exploration. You reach for tools like Cursor or Claude Code.
• Strong problem-solving skills and the ability to work independently with minimal supervision
• Love for problem solving with an innate sense of curiosity and urgency

Technical:

• React, HTML, CSS
• TypeScript/Node.js, Python, or similar
• PostgreSQL, NoSQL and query optimization
• AWS (ECS, Lambda, RDS, S3, CloudWatch)
• Infrastructure as code with tools such as Terraform, Terragrunt, etc
• API design, authentication (OAuth, JWT)
• Observability and monitoring
• Security best practices, compliance frameworks

Bonus:

• Mobile app experience
• Migration tools or data import/integration systems

Our Stack

React, TypeScript, Python, PostgreSQL, S3, Docker, Lambda, AWS

Why You'll Love It

• Build data systems that power revolutionary AI applications.
• Work with novel data patterns created by AI-native workflows.
• Design infrastructure that enables AI capabilities others can't match.
• Direct impact on AI model performance and user experience quality.
• If located in Vancouver, you'll have a chance to work alongside the Vancouver Engineer team.

What We Offer

• Top of the line benefits package including 100% employer paid extended health and dental for you and your family.
• A fully remote, flexible work environment with autonomy and ownership.
• A competitive salary and meaningful equity ownership in a pre-funded, high-growth startup.
• The opportunity to work on cutting-edge technology with a strong product-market fit.
• The chance to be a founding team member, shaping the company's product vision and culture.
• A team that values collaboration, innovation, and continuous learning.

We invite all qualified candidates to apply. Please note, you must be eligible to work in Canada to be considered for this role. We thank you for your interest, and only successful applicants will be contacted. Please no Recruiters or phone calls.