# Senior Full Stack Engineer, App Runtime
**Company:** [Snowflake](https://scaleengineer.com/companies/snowflake)
Senior Full Stack Engineer responsible for driving AI-native development experiences on Snowflake's App Runtime platform. This high-impact role spans the entire tech stack (React, Go, Python, Java) and requires deep hands-on expertise with modern web frameworks, strong backend collaboration capabilities, and a track record of shipping scalable systems. You'll directly shape the platform that enables developers to deploy web applications in minutes while inheriting Snowflake's world-class security and governance by default.
**Role:** Full Stack Engineer
**Seniority:** Senior
**Locations:** CA-Ontario-Toronto
**Salary:** 245250–295250 CAD
[Apply](https://jobs.ashbyhq.com/snowflake/6159ff6c-30b3-44c2-9128-934c72318e0b)
Canonical: https://scaleengineer.com/jobs/snowflake/senior-full-stack-engineer-app-runtime
---
## Responsibilities

- Build AI-Assisted Development Experiences: Architect and implement agentic development experiences powering the App Runtime platform across the complete technology stack, including React frontend components, Go backend services, Python automation scripts, and Java integrations. Create intuitive interfaces that leverage Cortex AI capabilities to accelerate application development workflows.
- Author Technical Architecture Specifications: Design comprehensive technical and architectural specifications that evaluate system requirements holistically, considering both frontend user experience and backend scalability. Write detailed design documents that guide implementation and facilitate cross-functional alignment between engineering, design, and product teams.
- Implement Critical Infrastructure Code: Maintain hands-on involvement by writing production-grade code for high-priority features, critical bug fixes, and platform infrastructure improvements. Balance architectural oversight with direct code contributions to ensure quality standards and demonstrate engineering excellence across the stack.
- Drive Customer-Centric Product Development: Engage directly with Snowflake App developers to understand pain points, gather feature requests, and prioritize roadmap items based on real-world customer needs. Translate developer feedback into actionable product improvements and participate in customer interviews to validate product-market fit.
- Establish Quality and Performance Standards: Lead code review initiatives to enforce best practices, security standards, and performance optimization across the App Runtime codebase. Conduct thorough reviews focusing on reliability, scalability, and maintainability while providing constructive feedback that raises engineering capability.
- Mentor and Develop Engineering Talent: Coach and mentor junior and mid-level engineers on the team, fostering skill development in full-stack architecture, distributed systems, and customer-focused product thinking. Provide career guidance and create opportunities for engineers to lead high-impact technical initiatives.
- Coordinate Cross-Functional Platform Integration: Work closely with sister teams including Cortex AI, Container Platform, and Security organizations to ensure seamless platform integration. Facilitate technical discussions, resolve integration challenges, and align on shared infrastructure requirements.

## Requirements

### education

- {"name":"Bachelor's Degree in Computer Science, Engineering, or Related Field","description":"Required foundational education demonstrating formal training in computer science principles, software engineering methodology, data structures, algorithms, and system design fundamentals."}
- {"name":"Master's Degree or Higher Qualification","description":"Preferred but not required. Advanced degree in Computer Science, Software Engineering, or related discipline providing deeper expertise in specialized areas such as distributed systems, security, or human-computer interaction."}

### technical

- {"name":"Modern Web Application Architecture","description":"Expert-level understanding of contemporary web frameworks including React, NextJS, and component-based UI design patterns. Knowledge of server-side rendering, client-side state management, performance optimization techniques, and responsive design principles."}
- {"name":"API Design and System Architecture","description":"Proficiency in RESTful API design, GraphQL, microservices patterns, and distributed system architecture. Experience designing APIs for developer platforms with emphasis on intuitive developer experience, backward compatibility, and version management."}
- {"name":"TypeScript/JavaScript Expertise","description":"Advanced proficiency in TypeScript and JavaScript, including async/await patterns, functional programming paradigms, module systems, and ecosystem tools. Demonstrated ability to write type-safe, maintainable code at scale."}
- {"name":"Multi-Language Backend Capabilities","description":"Working proficiency in Go, Python, and/or Java for backend service development. Understanding of language-specific performance characteristics, concurrency models, and ecosystem libraries relevant to cloud platform development."}
- {"name":"Security and Compliance Architecture","description":"Strong foundational knowledge of application security, including authentication mechanisms, authorization patterns, data encryption, secure communication protocols, and compliance with cloud security best practices like multi-tenancy isolation."}
- {"name":"Scalable Systems Design","description":"Experience architecting and operating high-scale distributed systems, including database optimization, caching strategies, load balancing, and monitoring approaches. Understanding of performance bottlenecks and techniques for horizontal and vertical scaling."}

### experience

- {"name":"5+ Years of Full-Stack or Frontend Development","description":"Minimum 5 years of professional software engineering experience with significant focus on frontend development, full-stack engineering, or both. Demonstrated progression from mid-level to senior-level responsibilities with increasing scope and impact."}
- {"name":"High-Scale System Design and Deployment","description":"Proven track record of designing, shipping, and operating production systems that serve thousands to millions of users. Experience navigating complex trade-offs between performance, reliability, feature velocity, and maintainability at scale."}
- {"name":"Product-Focused Development Experience","description":"Background shipping customer-facing products where you balanced technical excellence with time-to-market constraints. Experience working in fast-moving environments, iterating on features based on user feedback, and making data-driven product decisions."}
- {"name":"Cross-Functional Collaboration and Communication","description":"Demonstrated ability to work effectively with product managers, designers, and other engineers. Strong written and verbal communication skills, with examples of driving alignment across teams and influencing technical decisions through compelling documentation and presentation."}
- {"name":"0-to-1 Product Development (Preferred)","description":"Experience building early-stage products from concept to public availability, where you skillfully managed the tension between feature completeness and rapid market entry. Ideally having contributed to products in early preview or beta stages."}
- {"name":"Multi-Tenant Platform Architecture (Preferred)","description":"Background building or contributing to multi-tenant systems, developer tools, app hosting platforms, or SaaS infrastructure. Experience implementing strong data isolation, resource quotas, and security-first design patterns in shared platform environments."}
- {"name":"Technical Leadership and Architecture (Preferred)","description":"Prior experience as a technical architect, tech lead, or lead engineer on high-impact customer-facing products. Demonstrated ability to make architectural decisions, mentor team members, and set technical vision."}

## Skills

### required

- {"name":"React and Modern Frontend Frameworks","description":"Advanced React expertise including hooks, context API, performance optimization, and modern component patterns. Familiarity with Next.js for server-side rendering and full-stack development."}
- {"name":"TypeScript Development","description":"Expert-level TypeScript proficiency with strong understanding of type systems, generics, advanced types, and strict null checking. Ability to leverage TypeScript for building scalable, maintainable applications."}
- {"name":"Full-Stack System Design","description":"Capability to design complete applications spanning frontend, backend, APIs, and infrastructure. Understanding of integration patterns, data flow, and system architecture across multiple layers."}
- {"name":"API Design Patterns","description":"Expertise in designing developer-friendly APIs following REST conventions, GraphQL principles, or gRPC patterns. Knowledge of versioning strategies, error handling, documentation, and developer experience optimization."}
- {"name":"Security Best Practices","description":"Working knowledge of common vulnerabilities (OWASP Top 10), secure coding practices, authentication/authorization patterns, data protection, and cloud security principles applicable to SaaS platforms."}
- {"name":"Performance Optimization","description":"Ability to identify bottlenecks, optimize queries, implement caching strategies, minimize bundle sizes, and profile applications for performance. Experience with monitoring and observability tools."}
- {"name":"Distributed Systems Concepts","description":"Understanding of microservices architecture, service-to-service communication, eventual consistency, failure handling, and scaling patterns for distributed applications."}
- {"name":"Version Control and DevOps","description":"Proficiency with Git-based workflows, pull request reviews, and CI/CD pipelines. Familiarity with containerization, deployment automation, and infrastructure-as-code concepts."}

### preferred

- {"name":"Go Backend Development","description":"Working proficiency in Go for building high-performance backend services. Experience with Go's concurrency primitives, standard library, and ecosystem for cloud-native applications."}
- {"name":"Python Programming","description":"Competency in Python for backend services, automation scripts, and data processing. Familiarity with Python web frameworks and ecosystem for rapid development."}
- {"name":"Java Development","description":"Knowledge of Java for enterprise backend systems, including understanding of JVM concepts, common frameworks like Spring, and Java's role in distributed systems."}
- {"name":"AI/ML Integration Concepts","description":"Experience integrating AI or machine learning capabilities into applications. Understanding of LLM APIs, prompt engineering, and agentic development patterns for intelligent user experiences."}
- {"name":"Developer Tools and Platforms","description":"Background building or extending developer-focused products, IDEs, code editors, CLI tools, or APIs. Understanding of developer experience optimization and ergonomic design patterns."}
- {"name":"Multi-Tenant SaaS Architecture","description":"Experience designing or maintaining multi-tenant systems with strong isolation, resource management, and security boundaries. Knowledge of data residency, compliance requirements, and scalable multi-tenant database patterns."}
- {"name":"Container Orchestration","description":"Familiarity with Docker, Kubernetes, or similar container platforms for application deployment and scaling in cloud environments."}
- {"name":"Database Optimization","description":"Experience with SQL and NoSQL databases, query optimization, indexing strategies, and scaling databases for high-traffic applications."}
- {"name":"Monitoring and Observability","description":"Experience implementing observability solutions using tools like Datadog, New Relic, Prometheus, or ELK stack. Understanding of metrics, logs, traces, and alerting for production systems."}
- {"name":"Technical Writing and Documentation","description":"Strong ability to author clear technical specifications, architecture decision records (ADRs), and comprehensive documentation that facilitates team alignment and knowledge sharing."}

## Tech stack

### tools

- {"name":"Git and GitHub/GitLab","description":"Version control and collaboration platform for source code management, code review workflows, and CI/CD integration."}
- {"name":"Docker and Container Registries","description":"Containerization technology for packaging and deploying applications consistently across development and production environments."}
- {"name":"Kubernetes or Cloud Orchestration Platforms","description":"Container orchestration for managing application deployment, scaling, and lifecycle in cloud infrastructure."}
- {"name":"Monitoring and Observability Tools","description":"Platforms like Datadog, New Relic, or similar for application performance monitoring, logging, tracing, and alerting in production."}
- {"name":"Cortex AI Platform","description":"Snowflake's AI integration platform providing LLM access and agentic capabilities for intelligent development experiences."}

### others

- {"name":"RESTful API Architecture","description":"Standard patterns for building scalable, maintainable APIs that serve frontend applications and external integrators."}
- {"name":"GraphQL (Preferred)","description":"Query language and runtime for building efficient APIs with precise data fetching, useful for complex frontend requirements."}
- {"name":"Microservices Architecture","description":"Distributed system design pattern for building loosely coupled, independently deployable services that scale horizontally."}
- {"name":"Multi-Tenant System Design","description":"Architectural patterns for safely isolating customer data, managing shared resources, and implementing row-level security in shared platforms."}
- {"name":"Cloud Computing Platforms","description":"AWS, Google Cloud, or Azure expertise for deploying and scaling cloud-native applications with managed services."}
- {"name":"Infrastructure as Code","description":"Tools like Terraform or CloudFormation for declarative infrastructure management, enabling reproducible deployments and version control of infrastructure."}

### databases

- {"name":"PostgreSQL or Similar Relational Databases","description":"Structured data storage for application metadata, configurations, and relational data management. Critical for multi-tenant platform consistency."}
- {"name":"Cloud Data Warehouses","description":"Integration with Snowflake's core data warehouse platform for storing and querying application data. Enables inherited security, governance, and analytics capabilities."}

### languages

- {"name":"TypeScript/JavaScript","description":"Primary language for frontend development and node.js based backend services. Core to building modern, type-safe web applications with strong ecosystem support."}
- {"name":"Go","description":"Backend service language offering high performance, efficient concurrency, and cloud-native capabilities. Used for building scalable microservices and platform infrastructure components."}
- {"name":"Python","description":"Versatile language for backend services, automation, scripting, and data processing. Common in AI integration and platform development workflows."}
- {"name":"Java","description":"Enterprise-grade language for backend services and large-scale distributed systems. Part of the broader Snowflake platform ecosystem."}

### frameworks

- {"name":"React","description":"Modern frontend framework for building interactive, component-based user interfaces. Primary technology for App Runtime's user-facing development experience."}
- {"name":"Next.js","description":"Full-stack React framework enabling server-side rendering, static generation, and API routes. Enables seamless frontend-backend integration for optimal performance."}
- {"name":"Node.js","description":"JavaScript runtime for building scalable backend services and server-side applications. Primary runtime for Snowflake Apps platform."}

## Benefits

### benefits

## Compensation

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## Interview process

### steps

## Full description
At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done.

**About the role**

The **App Runtime** team is building a platform that lets every Snowflake user go from an idea to a live, deployed web application (Node.js first) in minutes. We own the end-to-end experience of building and running apps, from Cortex AI-assisted development to deployment in a secure, scalable infrastructure. Apps built on the platform inherit Snowflake's security, governance, lineage, and access controls by default. See [Deploy Faster with Snowflake Apps](https://www.snowflake.com/en/blog/snowflake-apps-build-deploy-faster/).

As a Senior Full Stack Engineer, you will drive initiatives that span our product areas and tech stack. It’s a high-impact role - you will work on an early-stage, public-preview product. Your work will directly shape the product experience developers rely on. This role requires a unique combination of deep hands-on expertise with web frameworks, great UX design instincts, customer obsession and collaboration with backend teams.

**Responsibilities**

* Build the AI-assisted, agentic development experiences that power App Runtime, spanning the full tech stack - React, Go, Python, and Java
* Stay deeply hands-on by authoring technical and design specs that consider the system holistically (frontend and backend) and implementing critical code
* Partner directly with customers, i.e. developers building Snowflake Apps, translating their needs into features and improvements
* Raise the bar for quality, reliability and performance through code review; mentor engineers
* Coordinate closely with sister teams such as Cortex AI, Container Platform or Security

**Requirements:**

* Bachelor’s degree in Computer Science, Engineering or a related field. Master’s or higher is preferred but not a requirement
* 5+ years of experience including significant experience in frontend or full-stack software development, with a demonstrated track record of designing, shipping and operating high-scale systems
* Deep understanding of modern web application architecture (e.g. React, NextJS), good API design patterns, security, performance and scale; proficiency in TypeScript/JavaScript, ideally also in Go, Python and/or Java
* Good communication skills: crisp write-ups, constructive debate, and ability to drive consensus across engineering, design and product

**Nice to have:**

* Experience shipping 0-1 products where you skillfully balanced the trade-offs between feature completeness and time-to-market
* Experience with multi-tenant systems (ideally app hosting platforms or tooling for developers) with strong isolation and a security-first posture
* Technical leadership experience, such as being an architect or tech lead for high-impact customer-facing products

Snowflake is growing fast, and we’re scaling our team to help enable and accelerate our growth. We are looking for people who share our values, challenge ordinary thinking, and push the pace of innovation while building a future for themselves and Snowflake.

How do you want to make your impact?

For jobs located in the United States, please visit the job posting on the Snowflake Careers Site for salary and benefits information: [careers.snowflake.com](http://careers.snowflake.com)