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

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Senior Core Java Developer

The Role We are seeking a highly experienced and hands‑on Java Developer with a strong background in Core Java, Spring Framework, and low‑latency multi‑threaded programming to join our dynamic team. The ideal candidate will have extensive experience working within capital markets, debt capital markets, and finan ...

Senior Full Stack Developer

Opportunity Our Development team is growing and we’re looking for a Senior Full Stack Developer who is passionate about building high quality features and mastering modern technologies such as React 17, 18, Redux, Hooks, Sagas, Storybook (in house component library), Web APIs, design patterns, AW ...

Senior Full Stack Developer

Who We AreTeranet is Canada’s leader in the delivery and transformation of statutory registry services with extensive expertise in land and commercial registries. We also market insightful property and data solutions, as well as practice management automation to thousands of customers in the real estate, financi ...

Senior Core Java Developer

The Role We are seeking a highly experienced and hands‑on Java Developer with a strong background in Core Java, Spring Framework, and low‑latency multi‑threaded programming to join our dynamic team. The ideal candidate will have extensive experience working within capital markets, debt capital ma ...

Capgemini Senior Guidewire Developer

Capgemini invites applications for the Senior Guidewire Developer role in Toronto, Canada. Focus on utilizing Guidewire Claimcenter, PolicyCenter, or Billing Center to deliver exceptional solutions.This role requires a mid-senior level developer adept at designing and unit testing Guidewire solutions. ...

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 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 systems, messag ...

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 Power BI Developer

We are At Synechron, we believe in the power of digital to transform businesses for the better. Our global consulting firm combines creativity and innovative technology to deliver industry-leading digital solutions. Synechron’s progressive technologies and optimization strategies span end-to-en ...

IT Applications Developer Senior

IT - Applications Developer - Senior Location: Toronto, ON - Hybrid (3 days a week in office - Monday, Tuesday and Thursday) Pay Rate: $60.31/hr - $71.21/hr Contract Length: 6 Months with possibility for extension We are hiring a s ...

Senior Salesforce Solutions Developer

Location Toronto, ON (Hybrid, 3 days on-site per week)Language Excellent written and verbal communication skills in EnglishDuration 6-Month ContractAbout the Opportunity An established public sector organization is seeking a Senior Salesforce Specialist to support the delivery of a ...

Senior Developer ( Web/ Mobile)

Title - Senior Developer MUST-HAVE Hard Skills: 1.) 10+ years of back-end development experience 2.) Strong backend fundamentals, such as distributed system design, API design, container orchestration, and familiarity with MVCC concepts etc. 3.) 5+ years of Web development experien ...

Senior Data Developer (Toronto)

This role is eligible for our hybrid work model: 2 days in-office. Senior Data Developer About the team: The Global Platform Engineering (GPE) team, within the Data & AI/ML group, builds the foundational platforms that power Priceline's most strategic data, ML, and AI initiatives. GPE build ...

Python Developer (Senior/Staff)

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 How We Work We don’t separate backen ...

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, Guidewire Integration

Job Description As a Senior GW Integration Developer, you will be able to design, develop, and maintain integrations between Guidewire applications and external systems. The ideal candidate will have expertise in Guidewire PolicyCenter and the associated integration frameworks, APIs, and messaging systems within ...

Senior developer, AI Engineering

Requisition ID: Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. Is this role right for you? In this role, you will: Act as a technical lead for AI engineering initiatives, owning design decisions for complex, high‑impa ...

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 ...

Senior Backend Developer (.Net)

Senior Software Engineer – DevOps As a Senior Software Engineer, you will be responsible for complex software features from design through delivery, and for supporting users. Your focus will be on ensuring high quality, secure, and scalable DevOps practices across the organization. Respons ...

Senior Backend Developer (.Net)

Senior Software Engineer – DevOps As a Senior Software Engineer, you will be responsible for complex software features from design through delivery, and for supporting users. Your focus will be on ensuring high quality, secure, and scalable DevOps practices across the organization. Respons ...

Senior Backend Developer (.Net)

Senior Software Engineer – DevOpsAs a Senior Software Engineer, you will be responsible for complex software features from design through delivery, and for supporting users. Your focus will be on ensuring high quality, secure, and scalable DevOps practices across the organization. Responsibilities ...

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 ...

Senior Systems Developer Salesforce

Senior Systems Developer - Salesforce Join to apply for the Senior Systems Developer - Salesforce role at Co-operators 1 day ago Be among the first 25 applicants Company: CGL Department: Digital & Advisor Tech Employment Type: Regular Full Time Work Model: ...

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 ...

Senior Full Stack Developer

Job Description We are seeking a Senior Full Stack Developer to join the ClientLink Development team supporting a large-scale wealth management application. The successful candidate will play a key role in the development, enhancement, modernization, and support of enterprise‑grade applic ...

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 ...

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 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 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 ...

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 decisions. Th ...

RQ11239 Report Developer Senior

Provide planning, assessment, and development effort to complete the migration of approximately 270 operational reports from Courts legacy systems to new CDT solution.Work with Project Manager and Business Areas to evaluate and modernize reports, where applicable.Migrate report functionality ...

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 ...

Senior iOS Developer (Toronto)

Senior iOS Developer Hybrid, Downtown Toronto Duration: 6+ months, up to 2 years contract Responsibilities Feature development in Swift to expand functionality of a mobile banking application. Ensure proper design and architectural patterns are used to allow th ...

Senior Full Stack Developer

We are seeking a Senior Full-Stack Engineer to join our growing Engineering team at Thrive. This role is ideal for someone who thrives in a fast-paced startup environment, enjoys solving challenging problems, and is passionate about building high-quality, scalable software that impacts millions of career j ...

Senior .Net Developer (Toronto)

Senior .NET Developer Requisition ID: Overview AML Technology is seeking a Microsoft .NET Platform Senior Developer for the AML Tech Data Development Team. Responsibilities Lead and take ownership of end-to-end solution delivery, including design, development ...

Senior Developer, Integrations (Toronto)

About the Role The Senior Developer, Integrations is part of the Corporate Technology, Innovation & Data department. The role focuses on designing, developing, and delivering enterprise‑grade integration solutions that enable strategic business initiatives across Four Seasons. What You’ll ...

Senior Python Developer (Toronto)

Responsibilities Own timelines and deliverables, proactively managing scope, dependencies, and execution risks Independently design and deliver software solutions by engaging stakeholders and challenging assumptions Build backend services and RESTful APIs aligned to those de ...

IT Applications Developer Senior

IT - Applications Developer - Senior Location:Toronto, ON - Hybrid (3 days a week in office - Monday, Tuesday and Thursday) Pay Rate:$60.31/hr - $71.21/hr Contract Length:6 Months with possibility for extension We are hiring a senior IT Applications Developer for one of our top clie ...

Senior Backend Developer (Payments)

We're a fast-growing fintech startup building the only truly cross-border banking platform. We help businesses seamlessly manage money around the world so they can access more markets, accelerate their growth, and simplify their operations. We're looking for ambitious people to join our mission. We ...

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 ...

Wealthsimple Senior Frontend Developer

Drive innovation as a Senior Frontend Developer at Wealthsimple, Toronto, specializing in creating intuitive financial onboarding experiences. Focus on meticulous UX in a hybrid work environment.In your role with the Clients & Accounts team, you will architect and enhance onboarding experiences for Wealthsim ...

Senior Core Java Developer

The Role We are seeking a highly experienced and hands‑on Java Developer with a strong background in Core Java, Spring Framework, and low‑latency multi‑threaded programming to join our dynamic team. The ideal candidate will have extensive experience working within capital markets, debt capital ma ...

Senior Core Java Developer

The Role We are seeking a highly experienced and hands‑on Java Developer with a strong background in Core Java, Spring Framework, and low‑latency multi‑threaded programming to join our dynamic team. The ideal candidate will have extensive experience working within capital markets, debt capital ma ...

Senior Frontend Developer (3D)

Job Requisition ID #26WD97294Position Overview As aSenior Frontend Developer (3D), you will work at the intersection of technical engineering and UX design. You are responsible for creating intuitive, high-performance user interfaces that bring 3D data and spatial environm ...

Senior Developer, Risk Systems

Provides production and end-user support and governance for the risk technical platform and system environment that supports risk data & control structures (e.g. process controls, user access controls, data integrity controls) to enable risk processes and operations. Supports and oversees the planning, mai ...

Senior Developer – Java & Angular

About the role As a Senior Developer – Java & Angular, you will make an impact by designing and delivering scalable, high-performance full-stack applications that power business‑critical solutions. You will be a valued member of the engineering team, collaborating with product owners, desig ...

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 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 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 ...

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