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Senior Java Fullstack React/Angular developer

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Onsite

Senior Java Fullstack React/Angular developer

Open Systems Technologies

Senior Java Fullstack React/Angular developer

Skills

SQL QueriesReactJavaMicroservicesSpring BootAI

17 days ago

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Important information


Contract type:

Freelance / Contract

Location:

Mississauga, ON, Canada

Work mode:

Onsite

Published on:

4 October 2026

What they need


The Senior Java/React Full stack Lead Programmer Analyst is a senior technical role responsible for leading application development initiatives and driving design decisions across systems. This isa 3 days Hybrid in Mississauga. Its a 6 months contract to hire role.

Responsibilities

  • Java Frontend
  • Looking for independent developers
  • Understanding the requirements from the user
  • Doing design, development, using AI tools - Copilot, Devin etc
  • Full Lifecycle development experience!
  • Self motivated
  • Attitude to take it to the end along with the technical skills listed in the qualifications
  • Mentoring junior level developers, not managing them
  • Working with junior developers to explain, assign code and review, guiding them to do the right coding
  • Looking for Developers, not Architects
  • React focused, if they know React they can switch to Angular. Have to be proficient in React. Angular is not required
  • Fundamentals of how the structure works, how can they do the programming efficiently
  • API integration
  • Understanding of Java framework, what is written- as long as they are able to integrate APIs- review and understand code to integrate it (understand Core Java, but not extensive)
  • Java, Spring Boot, Angular (having React they can pick up Angular), and microservices from the integration aspect

Qualifications

  • 7–10+ years of experience in application development
  • Advanced expertise in Java, Spring Boot, React OR Angular, and microservices architecture
  • Strong experience with API design, SQL, and distributed systems
  • Experience with CI/CD pipelines, cloud platforms (preferred), and DevOps practices
  • Proven ability to lead technical initiatives and mentor teams
  • Strong communication and stakeholder management skills

Education

  • Bachelor’s degree or equivalent experience.

Required Skills

  • Advanced expertise in Java, Spring Boot, React, and microservices architecture
  • Strong experience with API design, SQL, and distributed systems
  • Experience with CI/CD pipelines, cloud platforms (preferred), and DevOps practices
  • Strong communication and stakeholder management skills
  • React focused, have to be proficient in React
  • Understanding of Java framework and Core Java sufficient to review and integrate APIs

Preferred Skills

  • Cloud platforms (preferred)
  • Ability to switch from React to Angular

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