Senior Back-End Platform Engineer

Quix; United States; Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Remote within Canada

Toronto or Montréal option

Job summary

Quix in the United States is seeking a back-end-focused engineer to design and build the APIs and data flows that power enterprise platforms and integrations. You’ll shape API contracts, service boundaries and production operations with an emphasis on reliability.

You will work with Node.js, .NET, Python or Go to implement REST and event-driven services, build data pipelines, and ensure scalable, observable systems with robust security controls.

Qualifications

• Experience building back-end services with Node.js, .NET, Python, or Go.
• Strong REST API design, event-driven architecture, and async processing.
• Experience with relational and non-relational data stores.
• Design for reliability with idempotent operations and retries.

Responsibilities

• Build REST and event-driven APIs for platform and integration use cases.
• Define service boundaries, data contracts and patterns for connecting distributed components.
• Develop data-processing pipelines and workflow automation.
• Implement authentication, authorization and audit mechanisms for enterprise environments.
• Improve performance, reliability and horizontal scalability; support logging, tracing, alerting and incident readiness.
• Collaborate with front-end engineers and integration architects to define usable API contracts.

Skills

Node.js

.NET

Python

Go

Job description

Role overview

Design and build the back-end services and data flows that underpin enterprise platforms and integrations. You’ll make architectural decisions about APIs, service boundaries and production operations, with a focus on reliability and clear contracts across distributed systems.

Responsibilities

• Build REST and event-driven APIs for platform and integration use cases.
• Define service boundaries, data contracts and patterns for connecting distributed components.
• Develop data-processing pipelines and workflow automation.
• Implement authentication, authorization and audit mechanisms for enterprise environments.
• Improve performance, reliability and horizontal scalability; support logging, tracing, alerting and incident readiness.
• Work with front-end engineers and integration architects to establish usable API contracts.

Requirements

• Production experience building back-end services with Node.js, .NET, Python, Go or a comparable language.
• Strong understanding of REST API design, event-driven architecture and asynchronous processing.
• Experience choosing and working with relational and non-relational data stores.
• Ability to design for reliability, including idempotency and retry behavior.

Benefits and work setup

• Full-time role based in Toronto or Montréal, or remote within Canada.