748,367+ Ontario Full Stack Developer Java React Jobs in Canada — Top Companies Hiring July 2026

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Lead Backend Developer with Kubernetes Expertise

Join a global leader in the energy sector as a Lead Backend Developer. This hybrid role focuses on Java and Python development within Kubernetes and Agile teams across Europe, Canada, and the US. You will design, develop, deploy, and manage resilient backend services for the company’s innovative pro ...

Senior Data Engineer Toronto Hybrid

Join a leading firm as a Senior Data Engineer focusing on cloud technologies like Java, AWS, or Azure. This hybrid remote role in Toronto emphasizes data engineering within banking and compliance sectors. We are searching for a Technology Developer with over 8 years of software development and data ...

Senior Backend Developer with Kubernetes

Join our global development team as a Senior Backend Developer experienced in Java and Python. This role emphasizes Kubernetes for orchestrating resilient backend services in cloud and on-premise environments. We are seeking a highly skilled candidate with over 10 years in Java and 3 years in Python ...

Senior Backend Engineer With Kubernetes Expertise Prince George

Unlock your potential as a Senior Backend Engineer in a renowned energy company. This role emphasizes Java and Python proficiency within a diverse, agile environment. We are on the hunt for an accomplished developer with at least 10 years of Java experience and 3 years in Python. You'll collaborate ...

Lead Backend Developer with Kubernetes Expertise

Join a global leader in the energy sector as a Lead Backend Developer. This hybrid role focuses on Java and Python development within Kubernetes and Agile teams across Europe, Canada, and the US. You will design, develop, deploy, and manage resilient backend services for the company’s innovative pro ...

Backend Developer with Kubernetes Expertise

Join a leading global energy provider as a Senior Java Developer specializing in backend solutions and Kubernetes. Collaborate with international teams to drive software innovation in a cloud-native environment. This role offers the chance to design, develop, and maintain scalable backend services. ...

Warehouse Control System Developer in Brantford

Elevate logistics technology solutions as a Warehouse Control System Developer in Brantford, ON. Drive successful deployment and integration of automation systems that boost warehouse efficiency. In this onsite role, you will play a critical role in the successful go-live of WCS solutions by deployi ...

IBM Sterling Consultant

FileX - MFT Consultant - IBM Sterling* Toronto, ON Hybrid (2 days per week in-person at Toronto office preferred) Skills: Advanced Java Concepts~Oracle Siebel Functional -Customer Order Management~Digital : IBM Sterling Commerce OMS Experience Required: 6-8 Role Descriptions: Top 3 Required Skills: 1. Strong han ...

CMiC PL/SQL and API Development Expert

Join CMiC as a PL/SQL and API Development Expert in Toronto, focusing on Oracle database solutions and Java-based REST APIs. This position blends database development with API integration. CMiC is in need of a skilled developer with a strong background in Oracle PL/SQL and Java. In this role, you wi ...

Développeur(euse) logiciel / Software Developer Platform Engineering

Aperçu du poste :Vous souhaitez améliorer directement la manière dont des centaines de développeurs créent, déploient et exploitent des logiciels dans des environnements cloud, sur site et hybrides ? Rejoignez-nous pour créer une plateforme unifiée qui élimine la complexité et per ...

Développeur(euse) logiciel / Software Developer Platform Engineering

Aperçu du poste :Vous souhaitez améliorer directement la manière dont des centaines de développeurs créent, déploient et exploitent des logiciels dans des environnements cloud, sur site et hybrides ? Rejoignez-nous pour créer une plateforme unifiée qui élimine la complexité et per ...

Manager Development FCC (Toronto)

Description Fidelity Clearing Canada (FCC) is the leading independent clearing broker and custodian in the Canadian market. We provide trade execution, clearing, custody and back‑office support services to Canadian‑based brokerage firms and the Canadian brokerage arms of U.S.‑based firms. ...

Sr Java Engineer Low Latency Val D'or (Val d'Or)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Kamloops

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Rouyn Noranda (Rouyn Noranda)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing New Westminster

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Abbotsford

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Banff

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Lac Brome (Lac Brome)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Saint Joseph De Beauce (Saint Joseph de Beauce)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Saint Esprit, Quebec (Saint Esprit, Quebec)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Brampton

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Peterborough

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Gatineau

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Abitibi Témiscamingue (Abitibi Témiscamingue)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Gatineau

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Oakville

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Kelowna

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency North York Toronto

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Rimouski

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Niagara Falls

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Greater Sudbury

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Nanaimo

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Metro Vancouver

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Trois Rivières (Trois Rivières)

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Thunder Bay

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Surrey

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Saint Nazaire D'acton, Quebec (Saint Nazaire[...]

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Sr Java Engineer Low Latency Quality It Resourcing Red Deer

About the Role This client is seeking a senior Java engineer to design and build distributed, high-throughput systems that process real-time data under strict low-latency requirements. You'll be working on performance-critical infrastructure where milliseconds matter, contributing to systems that ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMS for our public sector client (Req 541)

Our public sector client is seeking a Senior Java Developer to design and support enterprise integration solutions using TIBCO (BW5 & BW6) and EMSCalgary-based client - Candidates can be % remote in Canada, working MST hours Must Haves:10+ years of experience as a Java Develope ...

Principal Frontend Developer (Assets)

**Job Requisition ID #** 26WD95780 _L'affichage de poste en français suivra / The French job posting follows._ **26WD95780, Principal Frontend Developer (Assets)** **Position Overview** We are seeking a Principal Frontend Web Developer to join the team working on Auto ...

Développeur Front‑End Senior – React/TypeScript & UX

Une entreprise technologique à Montréal recherche un·e Développeur·euse Front‑end Sénior pour développer des interfaces web hautement performantes. Le candidat idéal aura plus de 5 ans d'expérience en développement moderne, une maîtrise de React.js et TypeScript, et sera capable de garantir une performance web o ...

Analyste programmeur ou analyste programmeuse, React fullstack

Temporary position for 12 months.À titre d’analyste-programmeur en développement, exploitation et maintenance de produits logiciels, vous contribuez à l’efficacité informatique. Vous analysez, concevez, configurez, développez, maintenez et faites évoluer les produits logiciels pour répondre aux besoins ...

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    Ontario Full Stack Developer Java React Jobs in Canada Job Search Guide, Trends and Insights