Top Software Engineer Jobs in Toronto

Build and operate ML training and serving infrastructure: design, develop, and launch backend systems, support availability and on-call, collaborate cross-functionally, and improve developer velocity.

The Senior Software Engineer will design and develop scalable systems for a cloud-based SaaS platform, lead technical discussions, and ensure high-quality code delivery.

Design and deliver analytics and data solutions by translating business needs into scalable data pipelines and models. Perform data sourcing, transformation, quality checks, warehousing, and build effective dashboards and BI reports. Support governance, documentation, testing, deployment, stakeholder collaboration, and provide guidance or development support to others.

Senior ETL developer responsible for designing, developing and maintaining data integration pipelines using Azure Data Factory, Databricks, Informatica and related Azure services. Duties include requirements gathering, complex data transformations, performance tuning for large volumes, CI/CD implementation, Oracle/SQL Server development, investigating pipeline data issues, and building BI integrations with IBM Cognos and Power BI.

Senior software developer to design, build, deploy, and troubleshoot n-tier enterprise applications using JPA/Hibernate and Spring Boot; work with PostgreSQL, PL/pgSQL and Azure Cosmos DB; implement front-end features with React/Angular; gather and document stakeholder requirements; apply design patterns and participate in technical leadership and quality assurance.

Responsible for software integration and quality for Cerebras AI platform, focusing on automation, debugging, and cross-team collaboration. Develops QA strategies and testing methodologies to ensure product quality.

Develop and maintain delivery and automation systems using TypeScript/Node (NestJS) and Go. Provide operational coverage, ship features, investigate deploy issues, support CI/CD and GitOps tooling (ArgoCD/Helm/GitHub Actions), and contribute to infrastructure provisioning and automation.

Design, build, test, and support secure, scalable Salesforce solutions using Apex, Lightning Web Components, flows, and API integrations. Collaborate with product, architecture, risk, and delivery teams to document designs and trade-offs, ensure auditability and controlled data access, adopt AI responsibly, and maintain operational readiness through DevOps and quality engineering practices.

Design and build enterprise healthcare AI agents and RAG pipelines using LLMs, MCP, OpenSearch/vector embeddings, and AWS Bedrock. Integrate with FHIR R4/R4B, SMART on FHIR, Smile CDR, HealthLake, Provider Registry and MDM to enable semantic search, referral recommendations, validation, explainability, monitoring, and CI/CD for production AI services.

Design, develop, and support cloud-native healthcare backend services and React UIs. Implement and customize Smile CDR and AWS HealthLake FHIR R4/R4B APIs, SMART on FHIR auth, OAuth2/OIDC/JWT security, provider data synchronization with MDM and EHRs, and scalable search with OpenSearch. Build integrations (HL7v2), CI/CD pipelines, automated tests, documentation, and provide operational support and knowledge transfer.

Design, build, test, and support React frontends and Java Spring Boot microservices that implement SMART on FHIR and HL7v2 integrations with Epic/Cerner/MEDITECH. Implement secure OAuth2/OIDC launch flows, FHIR APIs, scheduling and encounter workflows, Mirth-based interface routing/transformation, and production support. Deliver cloud-native AWS deployments, CI/CD, testing, documentation, and operational handover for virtual care integrations.

Build and enhance backend pricing and risk services for front-office trading. Collaborate with sales, trading, and quant teams to design scalable, high-performance systems, integrate downstream consumers, and maintain testable, observable CI/CD pipelines while learning financial product workflows.

Write, test, and maintain high-throughput, scalable software. Collaborate with engineers, contribute to architecture improvements, participate in code reviews and on-call rotations, and use AI-assisted tools to accelerate development and documentation.

Contribute to design, development, testing and maintenance of web applications using AngularJS, Spring Boot and SQL. Collaborate with product, design and engineering teams, conduct code reviews, troubleshoot and debug, identify security vulnerabilities, mentor junior analysts, and drive process improvements to deliver scalable, maintainable backend and full-stack solutions.

Join the Signup & Activation team to build and optimize frontend experiences that drive user acquisition and early activation. Collaborate with product, design, analytics, and backend engineers to implement high-quality, performant React/TypeScript interfaces, run experiments (A/B testing and personalization), and own well-scoped features from design through delivery in a Rails-backed environment.

Design and implement features for content ingestion pipelines, metadata services, and content processing workflows. Build reliable, observable services that handle diverse file formats, malformed inputs, retries, and asynchronous workflows. Collaborate with ML, Search & Discovery, and Product to improve metadata extraction, classification, and discoverability while leveraging LLM-based tools and AI-driven practices.

Build and optimize frontend signup and activation experiences using modern JavaScript and TypeScript. Collaborate with product, design, and analytics to implement high-converting, accessible, and performant user flows, own features from design through implementation, and participate in experimentation and personalization to improve conversion.

As a Software Engineer in Data Infrastructure, you will build and maintain high-performance data storage systems for AI training, collaborate with experts, and optimize data processing.

This role involves maintaining the reliability and operational health of CMS services, incident management, and supporting production systems while collaborating with various teams.

Develop real-time graphics software for multi-sensor simulation in autonomous driving. Collaborate with experts to enhance rendering technology and improve simulation realism.

As a Senior Software Engineer, you will manage Baseten's billing and revenue infrastructure, ensuring reliability and collaboration with finance and sales teams while evolving the billing platform.

Build and deliver education-focused product experiences across backend services, integrations, automation, experimentation, and light frontend. Implement APIs, containerized deployments, CI/CD, and integrate ML/AI solutions; write well-tested production code, maintain observability, and collaborate with cross-functional teams to take features from prototype to production.

Build and ship Pinner-facing Android features using Kotlin/Java. Drive product development from ideation to release, collaborate with design/product/backend teams, employ automated testing and A/B experiments, and leverage AI tools responsibly to increase speed and quality while ensuring verification and data protection.

Develop and automate configuration for distributed clusters, create monitoring tools, manage cloud operations, and ensure system reliability for Cerebras AI supercomputers.

The Senior Lead Java Fullstack Software Engineer leads application systems analysis and programming, develops methodologies, and oversees teams to meet technology goals and ensure compliance.