Principal Platform Engineer

GuruLink; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

A leading technology firm in Toronto is seeking a Platform Runtime Engineer to design and evolve the runtime orchestration engine for a next-generation platform. This role requires strong expertise in backend engineering with a focus on runtime logic orchestration and metadata execution. Candidates must have over 5 years of experience and fluency in C# and C++. The company offers a dynamic work environment focused on innovation and collaboration.

Qualifications

• 5+ years in backend/platform engineering or runtime systems.
• Strong fluency with C#, C++, and understanding of class compilation.
• Experience with runtime orchestration or FSMs.

Responsibilities

• Design and evolve the runtime orchestration engine.
• Implement and maintain inclusion points and execution patterns.
• Collaborate with AI tooling teams for metadata-to-code translation.

Skills

Backend/platform engineering

C#

C++

WASM

Runtime orchestration

Rule engines

Strong design practices

Job description

Location: Toronto, Ontario

Overview

As a Platform Runtime Engineer, you will help build and refine the core execution layer of a next-generation modular business platform. This role focuses on runtime logic orchestration, metadata execution, proxy modeling, and interface resolution, all derived from compiled business logic.

Responsibilities

• Design and evolve the runtime orchestration engine supporting compiled logic execution.
• Implement and maintain inclusion points, subprocedures, and rule-based execution patterns.
• Extend the system’s lazy-loaded proxy pattern for runtime references and hydration.
• Collaborate with AI tooling teams to support metadata-to-code translation and compilation.
• Design for safety, lifecycle state resolution, and contract execution across logic layers.
• Contribute to internal testing, runtime validation tools, and observability hooks.

Must Have Skills

• 5+ years in backend/platform engineering, runtime systems, or language/runtime tooling.
• Strong fluency with C#, C++, WASM and understanding of class compilation, metadata models, and DI.
• Experience with runtime orchestration, rule engines, or FSMs.
• Exposure to proxy patterns or reflection/AOP techniques.
• Familiarity with configuration-driven platforms is a bonus.
• Strong design and testing practices.

Nice to Have Skills

• Enjoys building scalable logic execution platforms.
• Understands modular system boundaries and runtime state models.
• Prefers building systems that empower developers and business users too.
• Has some understanding of leveraging AI Contextual Mapping and LLMs.