163,077+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Senior Full Stack Cloud & SaaS Engineer

A leading cloud storage provider in Toronto is seeking a versatile Software Engineer to design and develop full stack applications. Candidates should have over 5 years of experience, proficiency in backend and frontend technologies, and familiarity with SaaS development. This role offers generous wellness progra ...

Developer Infrastructure Engineer: CI/CD & Tooling

A leading fintech company is looking for a Software Engineer for its Developer Infrastructure team in Toronto. The role focuses on optimizing development processes and building tools to enhance the efficiency of engineering teams. Ideal candidates will have strong coding skills and significant experience in CI/C ...

Remote First Backend Engineer Scalable APIs & Security

A leading technology company is seeking a backend software engineer for a remote position in Toronto. The role involves designing secure backend services, collaborating on API development, and working with modern frameworks. Candidates should have a minimum of 5 years experience, strong skills in Python or Go, a ...

Photonics Data Analysis Engineer — Quantum Tech (Entry)

A technology company in Toronto is seeking a Photonics Test Engineer to develop software for analyzing photonic devices. This entry-level position requires expertise in Python, a solid understanding of photonics, and strong mathematical skills. The role focuses on automation and algorithm development in a collab ...

Senior Cloud Architect & Technical Fellow

A leading financial services company is seeking a Distinguished Engineer in Toronto, Ontario. This role involves articulating a bold technical vision, mentoring talent, and ensuring high-quality technical designs. The ideal candidate will have significant experience in software engineering, public cloud technolo ...

Senior Video Playback Engineer Cross Platform & AI Driven

A leading streaming service is hiring a Software Engineer in Toronto to design and maintain next-generation video player technology across various platforms. The ideal candidate will have over 5 years of experience in media systems and proficiency in JavaScript and React. This hybrid role allows you to enhance u ...

Performance Engineer: AI Workloads & CPU Optimization

A tech company specializing in AI solutions is seeking a Performance Engineer to optimize CPU and memory subsystems for their innovative Runtime software. Candidates should have experience in performance engineering, strong C/C++ skills, and familiarity with distributed systems. This role offers the chance to wo ...

Senior Full Stack Ad Tech Engineer

A leading travel platform in Toronto seeks a Senior Full-Stack Engineer to innovate ad products and improve user experiences. You will design and implement new features, contribute to the development of core APIs, and collaborate with dynamic teams. Ideal candidates have 5+ years in software development with str ...

Entry Level Java Engineer | AI Driven Learning

A technology company in Toronto is seeking a motivated Software Engineer. This entry-level role is perfect for recent graduates passionate about coding and AI. Responsibilities include writing efficient Java code, developing algorithms, and collaborating with a team to deliver quality solutions. Ideal candidates ...

Staff Backend Engineer Architecture & Scale (Bangkok)

A global travel technology company is seeking a Staff Software Engineer – Back End in Toronto, Canada. This role focuses on developing mission-critical systems that serve millions of users. Candidates must possess extensive experience in modern programming languages and a strong command of RDBMS. The position of ...

Experienced Java Engineer Building Cloud Based Solutions with AWS

Drive innovation as an Experienced Java Engineer developing cloud-based solutions. Your role will focus on utilizing Java and AWS technologies to create scalable applications that meet client needs.In this subcontractor role, you’ll be part of a technology team that thrives on collaboration and innovative pr ...

DevOps Engineer II with Cloud Expertise

Excel as a DevOps Engineer II at DataRobot, leveraging your cloud and automation skills to deliver scalable software systems. Focus on Kubernetes, Helm, and Python-based solutions.This role invites you to collaborate with engineers across teams, strengthening our software infrastructure. You'll be responsibl ...

Remote Containerization Engineer Driving Innovation in Open Source

Join a global team as a Containerization Engineer focused on virtualisation and cloud infrastructure. Leverage your skills in Go, Rust, or C/C++ to contribute to groundbreaking open-source technologies.This remote role invites you to engage with a diverse, distributed team, concentrating on software delivery ...

Hybrid AI Solutions Engineer at Fluent

Fluent Software Group seeks a skilled AI Solutions Engineer to innovate customer service solutions. This hybrid role combines technical building and enterprise consulting, both remote and on-site.As the key player in deploying AI voice agents, you'll master the client engagement process, balancing engineerin ...

Database Engineer for Amazon Aurora

Join Amazon as a Database Engineer, specializing in Aurora PostgreSQL. Shape the future of database technology in Toronto and influence millions using AWS.The Aurora PostgreSQL team at Amazon seeks deep technical expertise from engineers who are eager to redefine database systems. You'll be applying your str ...

Fitch Ratings Full Stack UI Engineer

Build critical software solutions as a Full-Stack UI Engineer at Fitch Ratings' Toronto office. Leverage your skills in React, Java, and Python in a hybrid workspace.As part of the global Ratings Technology team, you'll create full-stack applications that deliver insights for a leading credit ratings agency. ...

Firmware Engineer Hybrid Role at Tenstorrent

Join Tenstorrent as a Firmware Engineer and contribute to AI-driven technologies from a hybrid location in Toronto, ON. You will develop critical system management firmware while collaborating with various teams.In this role, you will leverage your 5+ years of embedded firmware experience to deliver exceptio ...

Privacy Focused Rust Engineer at Mozilla

Drive ethical advertising as a Senior Rust Software Engineer at Mozilla Corporation. Utilize your programming expertise to build privacy-preserving ad solutions that enhance user experiences.As part of the Ads Engineering team, your role will focus on developing internal components that support Mozilla's adv ...

NVIDIA Senior ASIC Engineer Role

Join NVIDIA as a Senior ASIC Engineer, where you'll revolutionize chip design using AI methodologies and tools. Engage in collaborative problem-solving and AI application deployment.In this pivotal role, you will focus on developing tools and strategies to optimize NVIDIA’s CPU and SOC designs through AI app ...

Senior Java Developer with Kafka Skills

Join Cognizant's team as a Senior Java Developer specializing in Kafka and Core Java. This hybrid role based in Toronto emphasizes innovative design and maintenance of high-performing applications.As a Senior Software Engineer B2, you will leverage over 8 years of expertise to design scalable backend service ...

Toronto Full Stack Engineer Position

Join a fast-growing tech team as a Full Stack Engineer in Toronto, focusing on cutting-edge web applications. Your skills in React, Next.js, and accessibility guidelines will drive project success.The ideal candidate will have a strong background in both front-end and back-end development, including cloud-na ...

Dayforce Product Engineer Internship

Explore a career in software engineering with Dayforce as a Product Engineer Intern. This hybrid role will deepen your understanding of data visualization in an innovative tech environment.You’ll be tasked with real-world responsibilities, including analyzing technical requirements and enhancing system archi ...

Senior Rust Engineer at Mozilla Corporation

Join Mozilla Corporation as a Senior Rust Software Engineer and drive ethical advertising through innovative programming. Build privacy-preserving solutions that enhance user experiences across various platforms.In this vital role on the Ads Engineering team, you will develop internal systems to support Mozi ...

Developer Tools Engineer at Homebase

Elevate developer efficiency at Homebase as a Developer Tools Engineer! Bring your strong software fundamentals to enhance the internal experience for engineers, utilizing your expertise in Ruby or Golang.You will contribute to the platform infrastructure team, focusing on the design and implementation of in ...

Quality Engineering Test Automation Specialist

Drive quality assurance initiatives as an Associate Quality Engineer at TD in Toronto, Ontario. Engage in hands-on testing and automation to deliver exceptional software solutions.You will contribute to quality engineering through efficient test case design, framework enhancement, and automation. Up to 2 yea ...

Join Clutch as an Analytics Engineer

Elevate your software engineering career by becoming an Analytics Engineer at Clutch, enhancing the future of car sales. You'll be writing high-quality code and shaping the online customer journey for thousands.In this pivotal role with Clutch, you’ll influence the design and maintenance of scalable, secure ...

Innovative Research Engineer Role at Thomson Reuters

Join Thomson Reuters Labs as a Research Engineer and harness AI to develop groundbreaking solutions. Your passion for technology will help reshape professional practices globally.As part of our global team, you will focus on innovative AI and ML capabilities at Thomson Reuters Labs. Your expertise in creatin ...

Senior Data Enablement Engineer Enhancing Enterprise Data Insights

Elevate enterprise data capabilities as a Senior Data Enablement Engineer. Collaborate on solutions that foster user engagement and improve self-service access in a hybrid work setting.With 5+ years of software engineering experience, you will shape the future of data management. Your role involves construct ...

Test Automation and Quality Assurance Engineer

Promote software quality as a Test Automation and Quality Assurance Engineer. Engage in a combination of manual and automated testing to certify top-tier product performance and usability while working in a hybrid model.In this critical role, you'll handle diverse testing processes including unit, integratio ...

Senior Java Developer with Kafka Skills

Join Cognizant's team as a Senior Java Developer specializing in Kafka and Core Java. This hybrid role based in Toronto emphasizes innovative design and maintenance of high-performing applications.As a Senior Software Engineer B2, you will leverage over 8 years of expertise to design scalable backend service ...

Test Automation and Quality Assurance Engineer

Promote software quality as a Test Automation and Quality Assurance Engineer. Engage in a combination of manual and automated testing to certify top-tier product performance and usability while working in a hybrid model.In this critical role, you'll handle diverse testing processes including unit, inte ...

Firmware Engineer Hybrid Role at Tenstorrent

Join Tenstorrent as a Firmware Engineer and contribute to AI-driven technologies from a hybrid location in Toronto, ON. You will develop critical system management firmware while collaborating with various teams.In this role, you will leverage your 5+ years of embedded firmware experience to deliver exceptio ...

Experienced Java Engineer Building Cloud Based Solutions with AWS

Drive innovation as an Experienced Java Engineer developing cloud-based solutions. Your role will focus on utilizing Java and AWS technologies to create scalable applications that meet client needs.In this subcontractor role, you’ll be part of a technology team that thrives on collaboration and innovative pr ...

Toronto Full Stack Engineer Position

Join a fast-growing tech team as a Full Stack Engineer in Toronto, focusing on cutting-edge web applications. Your skills in React, Next.js, and accessibility guidelines will drive project success.The ideal candidate will have a strong background in both front-end and back-end development, including cl ...

NVIDIA Senior ASIC Engineer Role

Join NVIDIA as a Senior ASIC Engineer, where you'll revolutionize chip design using AI methodologies and tools. Engage in collaborative problem-solving and AI application deployment.In this pivotal role, you will focus on developing tools and strategies to optimize NVIDIA’s CPU and SOC designs through ...

Privacy Focused Rust Engineer at Mozilla

Drive ethical advertising as a Senior Rust Software Engineer at Mozilla Corporation. Utilize your programming expertise to build privacy-preserving ad solutions that enhance user experiences.As part of the Ads Engineering team, your role will focus on developing internal components that support Mozilla's adv ...

Senior Data Enablement Engineer Enhancing Enterprise Data Insights

Elevate enterprise data capabilities as a Senior Data Enablement Engineer. Collaborate on solutions that foster user engagement and improve self-service access in a hybrid work setting.With 5+ years of software engineering experience, you will shape the future of data management. Your role involves construct ...

Manulife Intermediate Quality Engineer Role

Enhance your career as an Intermediate Quality Engineer at Manulife, focusing on automation and quality metrics. This hybrid role facilitates strong collaboration to improve software reliability.In this position, you will be integral to maintaining high standards of quality for Manulife's software products. ...

Senior Java Developer with Kafka Skills

Join Cognizant's team as a Senior Java Developer specializing in Kafka and Core Java. This hybrid role based in Toronto emphasizes innovative design and maintenance of high-performing applications.As a Senior Software Engineer B2, you will leverage over 8 years of expertise to design scalable backend service ...

Senior Data Enablement Engineer Enhancing Enterprise Data Insights

Elevate enterprise data capabilities as a Senior Data Enablement Engineer. Collaborate on solutions that foster user engagement and improve self-service access in a hybrid work setting.With 5+ years of software engineering experience, you will shape the future of data management. Your role involves construct ...

Privacy Focused Rust Engineer at Mozilla

Drive ethical advertising as a Senior Rust Software Engineer at Mozilla Corporation. Utilize your programming expertise to build privacy-preserving ad solutions that enhance user experiences.As part of the Ads Engineering team, your role will focus on developing internal components that support Mozilla's adv ...

Experienced Java Engineer Building Cloud Based Solutions with AWS

Drive innovation as an Experienced Java Engineer developing cloud-based solutions. Your role will focus on utilizing Java and AWS technologies to create scalable applications that meet client needs.In this subcontractor role, you’ll be part of a technology team that thrives on collaboration and innovative pr ...

Firmware Engineer Hybrid Role at Tenstorrent

Join Tenstorrent as a Firmware Engineer and contribute to AI-driven technologies from a hybrid location in Toronto, ON. You will develop critical system management firmware while collaborating with various teams.In this role, you will leverage your 5+ years of embedded firmware experience to deliver exceptio ...

Entry Level Full Stack Engineer at State Street

Embark on a rewarding career as a Full Stack Engineer with State Street, focusing on wealth management features within the Charles River Investment Management System. This entry-level position invites fresh talent to design APIs, web UIs, and build robust financial workflows.In this role, you will leve ...

Datacenter Commissioning Engineer Mechanical / Ingénieur(e) en mise en service de centres de [...]

Data Center Commissioning Engineer - Mechanical (Senior and Mid Level) Location: Toronto, ON and Montreal, QC. En quoi consiste ce poste : En tant qu'ingénieur(e) en mise en service de centres de données, vous jouerez un rôle clé dans la réussite de projets de centres de données ...

Datacenter Commissioning Engineer Mechanical / Ingénieur(e) en mise en service de centres de [...]

Data Center Commissioning Engineer - Mechanical (Senior and Mid Level) Location: Toronto, ON and Montreal, QC.En quoi consiste ce poste : En tant qu'ingénieur(e) en mise en service de centres de données, vous jouerez un rôle clé dans la réussite de projets de centres de données à grande échelle et à mi ...

Senior Java Developer (Terraform, AWS, & Python REQUIRED

We are seeking a skilled and passionate Senior Software Engineer with strong expertise in Java and AWS to join our technology team. The ideal candidate will have extensive hands‑on experience in software development and architecture, with a keen ability to design and analyze complex systems. A backgro ...

Senior Java Developer (with Python, AWS and Terraform)

Project description We are seeking a skilled and passionate Senior Software Engineer with strong expertise in Java and AWS to join our technology team. The ideal candidate will have extensive hands‑on experience in software development and architecture, with a keen ability to design and analyze c ...

Senior Back End Engineer (C#.Net, Azure) Toronto, ON

About the job Senior Back End Engineer (C#.Net, Azure) - Toronto, ON, ON (Fully Remote) 1-year contract with the possibility of extension Design and develop elegant back-end cloud solutions which are end-to-end: technical analysis, data implementation/architecture, unit testing, development, and integr ...

Senior Java Developer (with Python, AWS and Terraform)

Project description We are seeking a skilled and passionate Senior Software Engineer with strong expertise in Java and AWS to join our technology team. The ideal candidate will have extensive hands‑on experience in software development and architecture, with a keen ability to design and analyze c ...

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