Top Software Engineer Jobs in Toronto

Design, develop, and maintain Amazon Connect contact flows and supporting AWS serverless services. Build integrations with enterprise systems (Guidewire, CRM), implement monitoring and incident response, develop CI/CD and IaC, drive automation and AI features, mentor junior staff, and improve contact center reliability and observability.

Lead technical direction and implementation of a large-scale AI model serving platform. Design, build, and operate distributed systems (Ray/Ray Serve), ensure scalability, reliability, monitoring (Prometheus), CI pipeline robustness, and evolve the production model registry while collaborating with ML engineers and stakeholders.

Design and develop Waabi's observability stack, optimize performance, build automation tooling, and support application requirements while leading projects and mentoring teams.

The role involves developing low-level embedded software for vehicle control, integrating sensors, collaborating with various teams, and ensuring safety standards are met while mentoring junior developers.

Own features end-to-end: discover, design, build, and measure scalable frontend/backend systems. Influence architecture, APIs, schemas, performance, and developer experience while using AI tools to accelerate development and improve quality.

Design and lead architecture for real-time screening, detection, and investigation systems to enforce sanctions and AML rules. Build high-throughput, low-latency APIs and distributed pipelines, enable multi-tenant risk-as-a-service, integrate ML/LLM tooling for reviewer augmentation, drive cross-functional alignment, mentor engineers, and ensure operational reliability including on-call ownership.

Senior individual contributor responsible for designing and building complex, customer-facing product features. Own technical decisions within product areas, collaborate with Product and Design, contribute to architecture, maintain code quality, mentor engineers, and participate in production support.

Lead hands-on SRE/DevOps engagements to improve CI/CD, automated testing, secure deployments, observability, dependency updates, containerization, and cross-datacenter resilience. Drive TDD, test data/masking, library/runtime upgrades, Renovate automation, branch/source control best practices, secrets management, and automated DB and software deployment processes.

Design, develop, test, and maintain user-facing software and HMI interfaces (primarily Android). Collaborate with product owners, designers, and architects, contribute to architecture, support testing/CI, troubleshoot and optimize applications, and apply secure development practices.

Design, develop, test, and implement MERN stack application enhancements, bug fixes, and platform upgrades. Maintain solution architecture and operational documentation, support governance/security/privacy reviews, ensure AODA accessibility compliance, participate in Agile delivery, and provide knowledge transfer for operational continuity.

Develop and maintain scalable backend services supporting product provisioning, licensing, and purchasing. Design architectures, write tested Java-based code, troubleshoot production issues, improve reliability, and contribute to cloud-native infrastructure. Collaborate with product and engineering teams, participate in technical decisions and code reviews, mentor engineers, and provide hands-on technical leadership across distributed systems and microservices.

Lead design and implementation of high-throughput, low-latency programmatic bidding systems. Collaborate with ML engineers to deploy real-time inference, optimize distributed microservices, run experiments and quantitative analysis, and partner with product to ship scalable features. Foster operational excellence, mentor engineers, and continuously improve performance and reliability.

Designs and optimizes scalable cloud infrastructure, CI/CD pipelines, and infrastructure-as-code systems. Automates provisioning, configuration, and software delivery across environments while improving reliability, observability, incident response, performance, and security. Collaborates with Software Engineering, Security, SRE, and Product teams to maintain highly available infrastructure and ensure compliance with organizational standards.

Engineer and deliver Salesforce Health Cloud and Sales Cloud functionality across the full development lifecycle from sandbox through production. Serve as a Salesforce Health Cloud subject matter expert, collaborate with stakeholders and implementation partners, integrate Salesforce with external systems, migrate business processes, and apply healthcare data standards, security controls, and CI/CD practices.

Lead development of Elasticsearch vector similarity search capabilities, including new features, algorithms, data structures, performance improvements, and bug fixes. Collaborate with a globally distributed engineering and open-source community, provide technical expertise, guide initiatives autonomously, and write modern Java for scalable search systems.

Develop, verify, and maintain LLVM/MLIR-based HLS compiler analysis and transformation passes. Optimize HLS-generated hardware for power, performance, and area. Analyze real-world HLS applications to identify improvements and implement new features. Collaborate on SoC design and verification within an agile team to improve FPGA design toolchains and customer productivity.

Lead backend and cross-functional projects for Lyft's Pickup, Places and Search mapping team. Design, build, and operate fault-tolerant, large-scale distributed systems, own components end-to-end, write well-tested code, conduct architecture reviews, mentor engineers, and collaborate with product, data science, and analytics to improve rider and driver pickup/dropoff experiences.

Lead frontend engineer responsible for designing, building, and supporting Agilent.com experience-layer capabilities using AEM, DA.live, EDS, and Adobe Forms. Deliver reusable DA.live Blocks, integrate with content/catalog/personalization services, ensure performance, accessibility, SEO, and global scale. Act as technical product owner within a POD, mentor engineers, participate in agile delivery, CI/CD, testing, and production support.

Design and ship cloud-native backend services and APIs on AWS to ingest, process, and serve high-frequency time-series sensor data. Build and optimize streaming ETL/ELT pipelines, support ML model serving and feature pipelines, ensure reliability and observability, and collaborate across engineering and AI/ML teams to deliver production-ready analytics and alerting features.

The Senior Software Developer will design, build, and maintain backend services for record management and data enrichment, while mentoring other developers and collaborating across teams.

Design, build, and maintain a scalable multi-tenant workflow engine and associated backend services and web UIs. Implement cloud-native, fault-tolerant systems on AWS, ensure SLOs and reliability, write tests and CI/CD, perform on-call duties, integrate auth systems, mentor junior engineers, and collaborate across platform teams.

The role involves designing and implementing AI features, building APIs, participating in code reviews, and ensuring software scalability and reliability.

The Senior Software Developer will design and build scalable APIs and distributed systems, improve operational efficiency, and mentor other engineers, focusing on automation and data infrastructure.

Lead technical direction for a high-performance 2D/3D viewer platform. Drive cross-team architecture, implement scalable platform capabilities, mentor engineers, improve engineering velocity, and resolve complex production issues while partnering with Product, UX, and Architects.

Plan, design, and execute manual and automated tests across front-end and back-end enterprise applications. Develop test plans, scripts, and data; run functional, integration, regression, performance, load, and accessibility tests; manage defects and report results; participate in Agile ceremonies and post-release validation; use Azure/Azure DevOps, SQL/PLSQL, Katalon, and accessibility tools (JAWS/NVDA).