Top Python Jobs in Toronto

3 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Drive post-silicon bring-up, characterization, qualification, and productization of advanced-node bitcoin mining ASICs from first silicon to mass production. Develop and maintain ATE test programs and screening strategies, perform PVT characterization and DOE, analyze wafer/package/ system data to improve correlation, yield, and system performance, and collaborate with foundry, OSAT, design, firmware, and manufacturing partners to implement corrective actions and production-ready processes.
Top Skills: Advantest 93KAteChromaDoeFinal Test (Ft)FinfetJmpLoad BoardsOsatPerlProbe CardsPythonSpiceTclWafer Sort (Cp)
Reposted 3 Days AgoSaved
Remote
Toronto, ON
Senior level
Senior level
Fintech • Financial Services
The Senior Analyst, Portfolio Strategy will provide insights to drive business growth, manage portfolio risk, and analyze pricing and profitability.
Top Skills: ExcelMicrosoft PowerpointPythonSQLTableau
Reposted 3 Days AgoSaved
Easy Apply
Remote
Toronto, ON
Easy Apply
Expert/Leader
Expert/Leader
Big Data • Fintech • Mobile • Payments • Financial Services
The Senior Staff Software Engineer will architect Affirm's lakehouse analytics platform, implement data governance, mentor engineers, and collaborate cross-functionally to optimize data infrastructure and solutions.
Top Skills: Apache IcebergGoKotlinPythonSnowflakeSparkSQLTerraform
Reposted 3 Days AgoSaved
Remote
Toronto, ON
Mid level
Mid level
Artificial Intelligence • Cloud • Consumer Web • Productivity • Software • App development • Data Privacy
As an Infrastructure Engineer, you will build and manage scalable systems, optimize user experiences, and lead cross-functional projects while mentoring junior members.
Top Skills: C/C++GoJavaPython
Reposted 3 Days AgoSaved
Easy Apply
Remote or Hybrid
Toronto, ON
Easy Apply
Senior level
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
As a Senior Software Engineer, you'll develop core infrastructure for multi-agent systems, designing backend services and APIs for orchestration, collaborating across teams, and driving technical decisions in a dynamic environment.
Top Skills: APIsDistributed TracingEvent-Driven SystemsGoObservability ToolingPython
Reposted 13 Days AgoSaved
In-Office or Remote
Toronto, ON
Mid level
Mid level
Blockchain • Fintech • Payments • Financial Services • Cryptocurrency • Web3
As a Data Analyst at Circle, you'll analyze payments data, create visualizations, develop dashboards, and support decision-making with insights. You'll partner with business teams to identify opportunities for enhancement and communicate findings effectively to stakeholders.
Top Skills: Bi ToolsPythonSQLSupersetTableau
4 Days AgoSaved
Remote
Toronto, ON
Senior level
Senior level
Fintech • Financial Services
Lead QA efforts to design and maintain automated end-to-end tests across internal and external systems, build evaluation frameworks for AI/LLM features, embed testing into CI/CD pipelines, foster a shift-left quality culture, and transform manual testing into automation while collaborating with engineers and product managers.
Top Skills: APIsAWSCi/CdDatadogGitGoJIRAKatalon StudioLeapworkLlmLoad TestingMablPerformance TestingPlaywrightPostmanPythonReactRubySalesforceSpasTestsigmaTricentis ToscaTypescript
4 Days AgoSaved
In-Office or Remote
Toronto, ON
Expert/Leader
Expert/Leader
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Design, build, and operate production ML decision systems to detect and prevent payment fraud, account takeover, scams, and other abuse. Integrate diverse signals into low-latency serving and batch scoring, own feature pipelines and model lifecycle, develop AI-assisted triage and feedback loops, and partner cross-functionally to balance fraud reduction with legitimate customer access.
Top Skills: Cloud InfrastructureData LakehouseData WarehouseEmbeddingsFeature StoreJavaKafkaKotlinKubernetesLightgbmModel ServingMonitoringObservabilityPythonPyTorchSQLTensorFlowWorkflow OrchestrationXgboost
4 Days AgoSaved
In-Office or Remote
Toronto, ON
Expert/Leader
Expert/Leader
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Design, build, and operate production ML systems that generate trusted signals for ranking, retrieval, recommendations, propensity/churn/LTV, and next-best-action decisioning. Define signal/data contracts, own feature and candidate generation through serving, experimentation, monitoring, and feedback loops, and evaluate long-term business impact, trust, fairness, and compliance. Partner across product, data, modeling, risk, and compliance and apply AI/agents to accelerate engineering and operations.
Top Skills: Agent-Assisted Operations ToolingBatch PipelinesCloud InfrastructureCoding AgentsData WarehousesEmbeddingsEvaluation HarnessesEvent StreamsExperimentation SystemsFeature StoresJavaKotlinKubernetesLakehousesLightgbmModel-Serving InfrastructureObservability ToolingPythonPyTorchRanking/Retrieval SystemsRecommendation FrameworksSemantic SearchSQLTensorFlowWorkflow OrchestrationXgboost
4 Days AgoSaved
Remote or Hybrid
Toronto, ON
Expert/Leader
Expert/Leader
Blockchain • Fintech • Mobile • Payments • Software • Financial Services
Design, build, and operate production ML decision systems to detect and prevent payment fraud, account takeover, identity abuse, merchant/marketplace risk, scams, and other adversarial activity. Own end-to-end production lifecycle: data contracts, low-latency inference, batch scoring, feature quality, deployment, monitoring, incident response, rollback, and feedback loops. Develop AI-assisted workflows and reusable decision capabilities while partnering with modelers, product, compliance, and operations.
Top Skills: Agent-Assisted ToolingCloud InfrastructureCoding AgentsData WarehouseEmbeddingsFeature StoreJavaKafkaKotlinKubernetesLakehouseLightgbmModel-Serving SystemsMonitoringObservabilityPythonPyTorchSQLTensorFlowWorkflow OrchestrationXgboost
4 Days AgoSaved
Remote or Hybrid
Toronto, ON
Expert/Leader
Expert/Leader
Blockchain • Fintech • Mobile • Payments • Software • Financial Services
Design, build, and operate production ML signal systems—ranking, retrieval, recommendations, propensity, and next-best-action—covering feature/candidate generation, serving, experimentation, monitoring, and feedback. Define signal contracts (freshness, provenance, confidence), evaluate long-term impact (trust, fairness, compliance), and partner across product, data, and risk teams to deliver reusable customer-intelligence capabilities.
Top Skills: Batch PipelinesCloud InfrastructureCoding AgentsData WarehousesEmbeddingsEvent StreamsExperimentation SystemsFeature StoresJavaKotlinKubernetesLakehousesLightgbmModel-Serving InfrastructureObservability ToolingPythonPyTorchRanking/Retrieval SystemsRecommendation FrameworksSemantic SearchSQLTensorFlowWorkflow OrchestrationXgboost
13 Days AgoSaved
Hybrid
Toronto, ON
Senior level
Senior level
eCommerce • Fintech • Real Estate • Software • PropTech
As a Cloud Security Engineer at Opendoor, you'll manage security architecture across AWS and other environments, optimize cloud security tools, implement Zero Trust principles, and mentor engineers on security patterns.
Top Skills: AWSAzureDatadogDockerEksGCPGoHclOktaPythonRubyTerraformTypescript
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Reposted 13 Days AgoSaved
Easy Apply
In-Office or Remote
Toronto, ON
Easy Apply
Senior level
Senior level
AdTech • Digital Media • Marketing Tech • Software • Automation
The Sr Software Engineer will enhance platform performance, develop cloud-native systems, improve CI/CD processes, and oversee deliverables while collaborating with feature teams.
Top Skills: AirbrakeAWSDatadogDockerEc2JavaJavaScriptKafkaKubernetesPostgresPythonRabbitMQRuby on RailsRdsReactRedisRubySidekiqTerraform
5 Days AgoSaved
Remote or Hybrid
Toronto, ON
Senior level
Senior level
Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Perform real-time incident detection and response across Windows, Mac, and Linux; conduct malware and forensic analysis; develop detection and remediation processes; produce clear communications and thought leadership; mentor teams and interact with customers.
Top Skills: .NetCC#LinuxmacOSPerlPythonRuby On RailsVbWindows
14 Days AgoSaved
In-Office
Toronto, ON
Mid level
Mid level
Food • Retail • Agriculture • Manufacturing
The App/AI Engineer will develop AI-enabled data applications for R&D, focusing on scalable data systems, code optimization, and collaboration with stakeholders.
Top Skills: DatabricksDelta LakePythonSQL
5 Days AgoSaved
Remote
Toronto, ON
Expert/Leader
Expert/Leader
Artificial Intelligence • Cloud • Consumer Web • Productivity • Software • App development • Data Privacy
The Senior Infrastructure Software Engineer will build and manage a scalable, in-house search platform, ensuring seamless user experiences and expanding capabilities for a global user base.
Top Skills: C/C++ElasticsearchGoJavaPython
Reposted 14 Days AgoSaved
Easy Apply
Hybrid
Toronto, ON
Easy Apply
Mid level
Mid level
Artificial Intelligence • Information Technology • Mobile • Payments • Software • App development • Utilities
The AI Engineer designs and operationalizes intelligent systems for data extraction, collaborates with teams to establish AI standards, and delivers AI-driven solutions to improve business metrics.
Top Skills: Aws BedrockAws SagemakerPythonSQL
Reposted 14 Days AgoSaved
Hybrid
Toronto, ON
Junior
Junior
Automotive • Hardware • Robotics • Software • Transportation • Manufacturing
Develop and maintain integration projects using Ignition, manage time-series data, create dashboards, and optimize IoT connectivity protocols while adhering to safety and quality standards.
Top Skills: DockerGrafanaInfluxdbJavaScriptJythonModbusMqttOpc-UaPythonSQL
Reposted 14 Days AgoSaved
Easy Apply
Hybrid
Toronto, ON
Easy Apply
Mid level
Mid level
Marketing Tech • Mobile • Software
The Data Scientist will design and build machine learning solutions, optimize for business value, and guide customer success through technical expertise and collaboration.
Top Skills: AirflowCatboostGCPKerasKubernetesPandasPythonScikit-LearnSQLTensorFlowTerraformXgboost
Reposted 5 Days AgoSaved
Remote
Toronto, ON
Senior level
Senior level
Fintech • Financial Services
The Staff Software Engineer - Applied AI will develop and integrate AI-powered systems and tools, driving innovation through experimentation and collaboration with cross-functional teams to deliver impactful solutions.
Top Skills: AWSAws BedrockClaudeGoHugging FaceLangchainOpenaiPythonRubySnowflake
Reposted 5 Days AgoSaved
Easy Apply
Remote
Toronto, ON
Easy Apply
Senior level
Senior level
Big Data • Fintech • Mobile • Payments • Financial Services
The Senior Product Security Engineer collaborates with product and engineering teams to embed security into the product lifecycle, conducts threat modeling, reviews code, and identifies vulnerabilities.
Top Skills: AWSAzureJavaKotlinPython
Reposted 5 Days AgoSaved
In-Office or Remote
Toronto, ON
Mid level
Mid level
Artificial Intelligence • Machine Learning • Natural Language Processing • Software • Conversational AI
The role involves researching and developing large language models (LLMs) with a focus on transformer architecture, data curation, distributed training, and optimization. Responsibilities include conducting experiments, collaborating with teams, and staying updated on deep learning advancements.
Top Skills: Distributed ComputingLarge Language ModelsPythonPyTorchTransformer Architectures
6 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
As a Senior Data Scientist, you will lead AI risk assessments, coordinate with stakeholders, and ensure effective AI governance practices for safe financial application deployment.
Top Skills: Python
Reposted 15 Days AgoSaved
Hybrid
Toronto, ON
Senior level
Senior level
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead the design and development of machine learning models, collaborating with teams to optimize solutions and mentor junior members while ensuring technical excellence.
Top Skills: AzureBitbucketCosmos DbDatabricksFastapiGitJSONKerasMlopsNumpyPandasPostgresPysparkPythonSklearnSQLTorchTransformersUnix
Reposted 6 Days AgoSaved
Easy Apply
Remote or Hybrid
Toronto, ON
Easy Apply
Senior level
Senior level
Artificial Intelligence • Cloud • Computer Vision • Hardware • Internet of Things • Software
As a Staff Machine Learning Engineer, you'll lead AI initiatives using large-scale data, optimize ML models for edge devices, and collaborate with cross-functional teams.
Top Skills: C++PythonRayRustSpark
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