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Posted yesterday

Senior Engineer

@ Nexus Systems Group

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Toronto, Ontario

Contract10+ years experience
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SIGNALS

Overview

Nexus Systems Group is hiring a Senior React Frontend Engineer for a year-long contract with its client. The role builds enterprise frontends with micro front-ends, performance optimization and advanced state management, and requires an in-person technical interview and testing on site.

Responsibilities:

  • Design and build React frontend architecture for enterprise applications
  • Implement micro front-ends and advanced state management
  • Optimize performance, accessibility and quality
  • Work within an agile development framework

Requirements summary:

  • 10+ years of experience
  • Proven React subject matter expertise
  • Strong JavaScript, TypeScript, HTML and CSS
  • Experience with design systems such as Material UI
  • Deep understanding of asynchronous operations
  • On-site in-person technical interview and testing required

Tools & skills

ReactReduxMaterial UINext.jsCypressMablJenkinsDockerKubernetesTerraform
Source and dates

Source type not verified · apify-linkedin

Employer posting date
2026-11-09
First seen by our source
2026-11-10
Source record updated
2026-11-10

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentSoftware development
Experience10+ years
Travelair: none · ground: none
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Nexus Systems Group

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Job description

Senior React Frontend Engineer

Our client requires a Senior React Frontend Engineer with 10+ years' of experience for an initial year long contract engagement.

*On-site, in person technical interview and testing is required to qualify for this opportunity.

Qualifications

  • In-depth knowledge of and ability to apply design and architectural patterns
  • Proven track record as a React subject matter expert specializing in enterprise architecture, micro front-ends, performance optimization, and advanced state management.
  • Strong experience with JavaScript/TypeScript, HTML and CSS
  • Passion for engineering best practices
  • Deep understanding of User Experience design
  • Experience working within an agile development framework
  • Track record of building software with quality, accessibility and high performance
  • Working with different design systems, leveraging frameworks, such as Material UI
  • Deep understanding of asynchronous operations

Current Tech Stack

  • Architecture: API-driven, distributed, microservice-based
  • Frontend: React/Redux, Material UI, Micro front-end, React testing framework, Cypress, Next.JS, Type Script, Web Components
  • Backend: Java 8, Spring, Solr, Kafka, Zuul
  • Build: Jenkins, Docker, Artifactory, Gradle
  • Infrastructure: AWS, Kubernetes, TerraForm, MySQL/RDS
  • Quality Assurance: Mabl, Locust/BlazeMeter, Python-based API test automation

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