Principal Engineer — DevX & AI at Xsolla

Department: Technology

Language

Compensation

CA$150,000 – CA$195,000/yr

Setup: Remote
Location: Montreal, Quebec
Type: Full-time
Level: staff+
Posted: May 14, 2026

Description

Xsolla is hiring a Principal Engineer to own the architecture of its agent-readable Shop Builder platform. The role defines public APIs, SDKs, MCP servers, CLI tooling, local development environments, deployment and rollback models, sandboxing, documentation standards, and evaluation harnesses for LLMs and developers. It is a senior individual-contributor position requiring 10+ years of professional engineering experience, deep expertise in JavaScript/TypeScript and React, and experience with cloud infrastructure, developer tooling, and AI agent interfaces.

Required Skills

JavaScript/TypeScript
React
Public APIs
MCP
CLI tooling
Cloud infrastructure
Containerization
CI/CD
Infrastructure as code

Additional Information

Required Previous Experiences: 10+ years of professional engineering experience
Staff or Principal engineer experience
Designing and shipping public APIs and SDKs
Building CLI tooling and local developer workflows
Building systems at global scale on cloud infrastructure
Building tools for AI agents
Preferred Qualifications: Experience in game technology, digital commerce, or storefront platforms
Experience building platforms for AI agents
Familiarity with Figma's plugin and component APIs
Open-source contributions to developer tooling, SDK frameworks, or API standards
Experience with block or extension marketplace design
Published technical writing or community presence
Translation Company Name: Xsolla

About Xsolla

Xsolla

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Xsolla is a global commerce and financial technology company for the video game industry, providing tools, infrastructure, and capital solutions to help developers and publishers fund, launch, distribute, and monetize games across markets and platforms. Its customers range from independent studios to the largest publishers, and the company says it serves thousands of game businesses globally. Xsolla operates as a merchant of record, with 200+ countries and regions, 1,000+ payment methods, and 130+ currencies listed on its website. The company is expanding a dedicated capital markets and investment platform; its Capital Markets Group is in its foundation stage.

Open roles: 147
New in 30 days: 18
Founded: 2005

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