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React developer Jobs in Oakville, ON

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React developer • oakville on

Last updated: 21 hours ago

Full Stack Developer (React, Python) - Assistant Vice President

08763 Citi Canada Technology Services ULCMississauga Ontario Canada
Full-time

The Full Stack Developer is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination w... Show more

Software developer

Clientserver Tech SystemsMississauga, ON, Canada
Full-time +1

Write, modify, integrate and test software code.Maintain existing computer programs by making modifications as required.Communicate technical problems, processes and solutions.Research and evaluate... Show more

Senior.Net developer

PeopleToGoOakville, Ontario, Canada
Full-time +1
Quick Apply

This role is also available on a Permanent, Full time basis.Our client is seeking a highly skilled, motivated and dynamic individual to join their Development team.This role includes an active role... Show more

Technology Developer

PurolatorMississauga, ON, CA
Full-time

As Canada’s leading integrated freight, package, and logistics provider, we’ve been helping promises get where they need to be for more than 60 years.The places we go, the elements we brave, the pr... Show more

Senior C++ Developer

STACK IT RecruitmentMississauga, ON, CA
CA$110,000.00 yearly
Full-time
Quick Apply

Build High-Performance Enterprise Software as a Senior C++ Developer! .We're partnering with a well-established software company that develops enterprise security products trusted by... Show more

Senior React Native Developer

Randstad CanadaMississauga, Ontario, CA
Temporary
Quick Apply

Our client, is seeking a high-performing Senior React Native Developer to join their core mobile engineering team.In this high-impact consulting role, you will drive the evolution of customer-facin... Show more

Java Full Stack Developer (React)

Sapsol Technologies IncMississauga, ON, CA
Full-time
Quick Apply

Java, Spring Boot, and Microservices.The ideal candidate will be responsible for building scalable, high-performance applications and ensuring seamless integration between frontend and backend syst... Show more

java developer

Siri InfoSolutions IncMississauga, ON, Canada
Full-time
Quick Apply

Job descriptions</b></p> <p> </p> <ol> <li><b>Backend Developer-</b></li> </ol> <p><b>Technical Skills:</b></p> ... Show more

 • New!

Lead Software Developer

SS&C Technologies HoldingsMississauga, Canada
CA$95,000.00 yearly
Full-time

We continue to look for today’s and tomorrow’s brightest talent, those that embody a spirit to improve not only their lives, but those around them.From college students to seasoned and experienced ... Show more

Big Data Developer

J M Group IncMississauga, ON, Canada
Full-time
Quick Apply

Experience Range:<br /> 10+ Yrs<br /> Must Have Technical/Functional Skills<br /> 1.Strong experience in Kafka, Spark, Scala,SQL ,Hive, Impala, Hadoop, Splunk, Autosys.Data Analys... Show more

Technology Analyst - React Developer

ITL CanadaMississauga, CA
Full-time

Infosys is seeking a React Developer.In the role of Technology Analyst, you will be a technology professional adding value to a gamut of Software Development lifecycle stages.You will create detail... Show more

Senior Software Engineer (java/react)

PointClickCareMississauga, Ontario
Full-time

At PointClickCare our mission is simple: to help providers deliver exceptional care.And that starts with our people.As a leading health tech company that’s founder-led and privately held, we empowe... Show more

C# Developer

PeopleToGoOakville, Ontario, Canada
Full-time +2
Quick Apply

Type: Permanent, full time position (Contractors interested in a 6 month contract will also be considered.Our client is seeking a highly skilled, motivated and dynamic individual to join their Deve... Show more

C# Developer

PeopleToGoOakville, Ontario
Full-time +2
Quick Apply

Type: Permanent, full time position (Contractors interested in a 6 month contract will also be considered.Our client is seeking a highly skilled, motivated and dynamic individual to join their Deve... Show more

JDE Developer

IKOMississauga, ON
CA$90,000.00 yearly
Full-time

As a member of the IKO ERP Development team, the.The job involved analysis, coding, debugging, and supporting the global instance of JDE Production and Non-Production environments.This position req... Show more

ServiceNow Senior Developer

BDOOakville
CA$84,000.00 yearly
Full-time

Putting people first, every day.BDO is a firm built on a foundation of positive relationships with our people and our clients.Each day, our professionals provide exceptional service, helping client... Show more

Sr. Net Developer

PeopleToGoOakville, Ontario
Full-time +1
Quick Apply

This role is also available on a Permanent, Full time basis.Our client is seeking a highly skilled, motivated and dynamic individual to join their Development team.This role includes an active role... Show more

React Architect OR Lead

Staffingine LLCMississauga, ON, Canada
Full-time
Quick Apply

Job Title: React Architect OR Lead<br /> Job Location: Mississauga<br /> Job Type: Full-Time</b></p> <p style="margin-bottom:13px"><b>Job Description:&... Show more

Angular Developer

Astra North Infoteck Inc.Mississauga, ON, ca
Full-time
Quick Apply

Primary Skills: An Angular Developer is responsible for designing, developing, and maintaining dynamic, responsive web applications using the Angular framework.Develop user-friendly and scalable fr... Show more

Digital Senior Developer

DefinityMississauga, ONT, Canada
CA$92,000.00 yearly
Temporary

Page(), pageData: pageData, onMessage: onMessage, classModifier: classModifier } } -->.PageDisplayBoxed}, class: classWithModifier ">.Dat... Show more

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Full Stack Developer (React, Python) - Assistant Vice President

Full Stack Developer (React, Python) - Assistant Vice President

08763 Citi Canada Technology Services ULCMississauga Ontario Canada
30+ days ago
Job type
  • Full-time
Job description

The Full Stack Developer is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

Responsibilities:

  • Design, develop and maintain scalable full-stack applications using ReactJS, Typescript and NestJS.

  • Translate complex business requirements into technical architecture and design documents.

  • Contribute to system architecture decisions ( monolith vs microservices, database design, API strategies)

  • Support development strategies and CI/CD pipelines, ensuring smooth release processes

  • Lead by example in using Claude Codeas a primary development accelerator . From scaffolding features and writing tests to refactoring and documentation generation.

  • Design and implement agentic workflowswhere Claude Code autonomously handles multi-step engineering tasks such as issue triage, code review assistance, PR generation, and deployment scripting.

  • Ideate and prototype AI-augmented engineering processes identifying opportunities where agentic AI can reduce manual effort across the SDLC (, automated bug fixes, test generation, dependency upgrades).

  • Establishprompt engineering standards and best practicesfor the team to ensure consistent, high-quality outputs from AI coding tools.

  • Evaluate and integrateemerging AI coding capabilitiesinto the team's toolchain, staying ahead of the curve on agentic AI developments.

  • Define guardrails, review processes, and quality gates for AI-generated code to ensure security, correctness, and maintainability.


Qualifications:

  • Deep proficiency in ReactJS (hooks, context, state management libraries such as Redux/Zustand/Recoil)

  • At least 5+ years in full-stack development with ReactJS, Typescript, NestJS

  • Advanced Typescript knowledge or similar language including generics, decorators and advanced typing strategies.

  • Strong experience in NestJS or similar framework (modular architecture, middleware, interceptors, guards, providers)

  • Expert in API design principals (REST, GraphQL, versioning, error handling, performance tuning)

  • Proficiency with databases (SQL & NoSQL) and related tools like TypeORM or Prisma.

  • Strong command of modern HTML/CSS, responsive design and accessibility standards.

  • Experience with design systems and component libraries

  • Familiarity with event-driven architecture, messaging queues (Kafka, RabbitMQ, etc)

  • Experience with AI coding

  • Skilled in designing distributed systems and scalable applications.

  • Knowledge of DevOps practices (Docker, Kubernetes, Terraform, CI/CD pipelines)

  • Hands-on experience with large-scale, production-grade applications

Education:

  • Bachelor’s degree/University degree or equivalent experience

  • Master’s degree preferred


This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$94, - $141,

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

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