162,165+ Senior Fullstack Software Developer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Senior Dotnet Developer toronto

Iris Software is hiring multiple C# developers for one of the top banking clients in Downtown Toronto, ON. Position: C#.Net Developers Location: Toronto, ON (Hybrid) Duration: Multiple Years (open-ended SOW) Required Qualifications BS or MS ...

Senior Quantitative Developer Opportunity

Step into a Senior Quantitative Developer role, harnessing your expertise in Python and quantitative finance within a flexible hybrid setting. Contribute to transformative pricing systems used by trading teams.As a Senior Quantitative Developer, you will leverage your seven-plus years of experience in quanti ...

Senior Full Stack Developer

Job Title Senior Full Stack Developer Location Toronto 4 days a week on site not negotiable Employment Type Contract Rate $45-47 an hour Job Description What is the opportunity? We’re seeking a talented Senior Full St ...

Senior .Net Developer (Toronto)

Senior .NET DeveloperRequisition ID: OverviewAML Technology is seeking a Microsoft .NET Platform Senior Developer for the AML Tech Data Development Team. ResponsibilitiesLead and take ownership of end-to-end solution delivery, including design, development, testing, deployment, an ...

IntactLab Senior Developer Position

Step into a Senior Developer position at IntactLab, using your strong modeling and analytical capabilities in a flexible, hybrid work environment. Drive significant projects and initiatives.As a vital member of our software development team, you’ll focus on transforming how data drives business decisio ...

Senior Developer Experience Engineer

Company Overview At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset – our people. We’re he ...

Senior Android Developer (Toronto)

Senior Android Developer – Lead II – Software EngineeringLocation: Toronto, Ontario About the roleYou are a Senior Android Developer who will join our client project at one of the largest financial institutions. You will modernise and improve one of the most successful banking apps in Canada ...

Senior Automation Developer (SDET)

PLATO is Canada's only Indigenous-led, Indigenous staffed software testing services firm. We insist on working with quality people who share our passion for quality testing, and have built a team of people who also believe quality is the most important deliverable. Our team of software testing specialists believ ...

Senior Full Stack Developer

Location: Toronto, Ontario About Our Client Our client is a Ministry-inspected online high school offering Ontario Secondary School Diploma (OSSD) credits to students around the world. Founded in 2010, they served over 30,000 students in 2025, making them one of the largest K-12 schools i ...

Senior Full Stack Developer

Applying to the position, you may join one of the most respected and fastest growing institutional investors in the world. Our client is a professional investment management organization that globally invests the funds to ensure long-term sustainability. The company invests in all major asset classes, incl ...

Senior Full Stack Developer

Tetra Unity is transforming how financial institutions deploy and manage digital asset operations at scale. Backed by leading investors including Wealthsimple, Shopify, National Bank, and ATB Financial, we empower institutions to build the digital asset infrastructure that fits their business. Our c ...

Senior developer, risk systems

Responsabilités Fournir à l’équipe de production et aux utilisateurs finaux du soutien et de la gouvernance pour la plateforme technique et l’environnement des systèmes de gestion des risques qui appuient les structures de données et de contrôle relatives au risque (contrôles liés aux processus, ...

Senior Full Stack Developer

Location: Toronto, Hybrid or Montreal, Hybrid Salary Range: $100,000 - $130,000 Role Type: New Role Hiring Status: Current hiring Key Responsibilities Build and maintain RESTful APIs using Node.js, NestJS, and TypeScript. ...

Senior SAP BusinessObjects Developer

Elevate your career as a Senior SAP BusinessObjects Expert in enterprise-level reporting and intelligence solutions. Design and develop crucial business insights for stakeholders using SAP BO tools and data optimization.We are looking for a seasoned SAP BO Developer with 5-10+ years in SAP BusinessObjects de ...

Senior Machine Learning Developer

OverviewThis role is eligible for our hybrid work model: Two days in-office. The Search Platform at Priceline powers the search, ranking, and recommendation systems across Priceline’s web, app, and conversational interfaces (like Penny chatbot). You will join our Data Science/ML team to build machine l ...

Senior Spring boot Developer

Senior Spring Boot Developer Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment t ...

Senior Java Backend Developer

The Global Fixed Income Trade Processing (FiTP) Team is seeking a Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. This role is within the FiTP team in Toronto, Canada. The successful individual will ideally have a strong knowledge of Fixed Inco ...

Senior Developer, Enterprise AI

Clio is the global leader in legal AI technology, empowering legal professionals and law firms of every size to work smarter, faster, and more securely. We are transforming the legal experience for all by bettering the lives of legal professionals while increasing access to justice. Summary:We are curr ...

Senior Java Microservices Developer

The best candidate is a full-stack Java developer with strong experience building and deploying microservices, ideally with hands‑on expertise using Kubernetes for container orchestration on GCP.Contract Duration:4 months with high likelihood of extension.Business Group:CO ...

Senior Java Microservices Developer

The best candidate is a full-stack Java developer with strong experience building and deploying microservices, ideally with hands‑on expertise using Kubernetes for container orchestration on GCP. Contract Duration: 4 months with high likelihood of extension. Business Grou ...

Java & Hadoop Senior Developer

JOB DESCRIPTION 6 to 8+ Years Experience Hands‑on expertise in Spring Boot, Java, REST API development, and Kafka‑based event‑driven architectures. Strong understanding of microservices lifecycle: design, development, containerization (Docker), orchestration (Kubernetes), ...

Senior Full Stack Developer

Duration: 4-Month Contract (July - October) Location: Toronto, ON (Hybrid - 2 to 3 days onsite per week) Job Overview We are seeking a Senior Full Stack Developer to support a critical operational excellence initiative focused on Application Performance Monitoring ...

Senior Full Stack Developer

About Adaptis Adaptis is a clean-tech company that helps organizations optimize both carbon and cost across the entire lifecycle of their buildings—whether for a single asset or a full portfolio. Our platform supports data-driven decision-making from design through operation, enabling teams to red ...

Senior Unity Game Developer

the company is an award-winning company devoted to play. With three subscription services and over 10 million monthly active users, the company creates apps that seed imagination, grow wonder, and bring thoughtful design to life for preschoolers and parents worldwide. Proudly Canadian, the company is a sub ...

Senior Salesforce Solutions Developer

Location Toronto, ON (Hybrid, 3 days on-site per week) Language Excellent written and verbal communication skills in English Duration 6-Month Contract About the Opportunity An established public sector organization is seeking a Senior Salesfor ...

Senior Java Developer Backend

Overview Senior Core Java Developer This is with a large IT services firm for a major Canadian bank. Candidate must have legal work status for Canada. Client Location is downtown Toronto, close to GO and TTC. Hybrid - In-Office 3 days per week. Increase to 4 days in September 2025. Perm/FT ...

Senior Frontend Developer Creative

Senior Frontend Developer - Creative Toronto, hybrid This role is a 6-month fixed‑term contract. This posting reflects an existing vacancy. JOB PURPOSE This role is part of our Global Studios team. We create emotive yet conversion‑focused ideas, produ ...

Senior IT Java Developer

Job Summary We are seeking a Senior Java Developer / Architect to design, build, and operate scalable, event-driven, cloud-native applications using Apache Kafka, Spring Boot, and Microsoft Azure. The ideal candidate combines strong hands‑on engineering with architectural ownership of distributed ...

Senior Java Microservices Developer

Take on a key role as a Senior Java Developer in Toronto, Ontario, where your Java skills meet cloud technology. Focus on developing microservices and enhancing trade applications in a collaborative team setting.This position involves migrating legacy services to a cloud environment, building applicati ...

Senior Application Security Developer

Position Overview Our team of security experts helps Autodesk design, build, deploy and maintain secure products. We are embedding security in the full spectrum of how we build our products from inception, design, development, testing to how we are running them in the cloud as well as ...

Senior/Staff Python Developer

Senior/Staff Python Developer Role: Full‑time, hybrid role based in Downtown Toronto Level: Senior to Staff (IC) seniority Compensation: $150,000 to $200,000 base CAD (depending on Seniority) Focus: This is a Back‑end focused Product Role <h3 ...

Senior Front End Developer

Senior Front End Developer Join to apply for the Senior Front End Developer role at Levitate At Levitate, we’re on a mission to make a real impact - for our customers, our team, and the world around us. We believe the best work comes from people who are curious, driven, an ...

Senior Developer Java & Microservices

Accelerate your development career as a Senior Developer skilled in Java, Spring Boot, and Microservices in Toronto. This hybrid role emphasizes API development and Agile practices.Ideal candidates will have 6-8 years of proven Java experience, working on scalable backend applications and RESTful APIs. You w ...

Senior Web Infrastructure Developer

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic ...

Senior Developer, Platform Engineering

Select how often (in days) to receive an alert: Requisition ID: Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. The Senior Platform Engineer will play a critical role within the Enterprise Data & AI Technology organization - o ...

Senior Java Microservices Developer

Take on a key role as a Senior Java Developer in Toronto, Ontario, where your Java skills meet cloud technology. Focus on developing microservices and enhancing trade applications in a collaborative team setting.This position involves migrating legacy services to a cloud environment, building applications wi ...

OpenTable Senior Frontend Developer

Drive transformation in restaurant technology with OpenTable as a Senior Frontend Developer. This hybrid role, starting remote, builds systems for optimizing real-time restaurant activities.In this position, you will deliver scalable solutions for reservations and service workflows within the Front of ...

Senior Developer Java & Microservices

Accelerate your development career as a Senior Developer skilled in Java, Spring Boot, and Microservices in Toronto. This hybrid role emphasizes API development and Agile practices.Ideal candidates will have 6-8 years of proven Java experience, working on scalable backend applications and RESTful APIs. ...

Senior Mobile iOS Developer

Looking to work for an awesome team? You've come to the right place! Our developers are a tight‑knit group helping drive substantial product development as we continue to grow. We value shipping quality code that delivers end‑to‑end functionality and then iterating and improving on that code using feedback ...

Senior Test Automation Developer

Requisition ID: Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture.Contributes to the overall success of Commerce Engineering in Canada ensuring specific individual goals, plans, initiatives are executed / delivered in support of the team’s ...

Senior Full Stack Developer

Senior Full-Stack Engineer (Applied AI) Our Technology team is the backbone of our company: constantly creating, testing, learning and iterating to better meet the needs of our customers. If you thrive in a fast-paced, ideas-led environment, you’re in the right place. This role is eligibl ...

Senior Data Platform Developer

At Seequent, we help organisations to understand the underground, giving the confidence to make better decisions faster. We build world-leading technology that is at the forefront of Earth sciences, transforming the way our customers work. Every day we help them develop critical mineral resources ...

Senior Machine Learning Developer

Overview This role is eligible for our hybrid work model: Two days in-office. The Search Platform at Priceline powers the search, ranking, and recommendation systems across Priceline’s web, app, and conversational interfaces (like Penny chatbot). You will join our Data Science/ML team to build mac ...

Hybrid Senior PEGA Developer

Take your skills to the next level as a Hybrid Senior PEGA Developer at WATERPARK PLACE in Toronto. Use your expertise to build leading-edge BPM solutions that drive digital transformation.As a full-time developer, you’ll work alongside the Tech Lead to design impactful workflow applications. You'll im ...

Senior Java Backend Developer

Additional Job Description The Global Fixed Income Trade Processing (FiTP) Team is seeking a Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. This role is within the FiTP team in Toronto, Canada. The successful individual will ...

Senior Cloud DevOps Developer

What is this Opportunity?The Digital Cloud DevOps team at RBC powers the developer platforms and delivery pipelines that bring client-facing journeys to life—every single day. We have moved beyond simply digitizing banking capabilities to driving end-to-end transformation of how clients experience thei ...

Senior Developer, Enterprise Applications

Senior Developer, Enterprise Applications – Permanent About UsFounded in 1916, Kohl & Frisch Limited has a solid reputation in the healthcare industry that distinguishes it as the only national, Canadian‑owned and operated wholesale distributor. A family‑owned company, it is one of Canada’s leading nat ...

Senior Machine Learning Developer

Job Description As a Senior ML Developer at the company, you’ll spearhead the operationalization of advanced machine learning (ML), User Behavior Analytics (UBA) and GenAI solutions within SIAI (Security Insights and AI) team. In this role, you’ll address the escalating threats in our global digital landscape by ...

RQ08295 Automation Developer Senior

About the job RQ08295 - Automation Developer - Senior Description of Responsibilities: Identifies opportunities for automation within software processes Designs and executes QA tests using scripts that automatically test functionality. Designs and writes ...

Senior iOS Developer (Toronto)

Senior iOS DeveloperHybrid, Downtown Toronto Duration: 6+ months, up to 2 years contract ResponsibilitiesFeature development in Swift to expand functionality of a mobile banking application. Ensure proper design and architectural patterns are used to allow the app to scale effectively. Partic ...

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    Senior Fullstack Software Developer Pythonreact Jobs in Toronto Job Search Guide, Trends and Insights