Jobs for senior python backend at Toronto

About Cognichip At Cognichip, we are building AI-native tools that transform how semiconductor engineers create, verify, and optimize chips. Our platform combines large proprietary models, agentic workflows, domain-specific engineering intelligence, and high-performance simulation infrastructure to accelerate one of the world’s most complex engineering...

Python Developer Needed for Quantara AI Development We are building out features for our Quantara AI business and need a skilled Python freelancer to join us. Scope & Requirements: - Build and integrate clean, responsive Python components. - Connect with backend endpoints and verify data handling. - Maintain clean git commits and basic code...

Job DescriptionThe SIAI Digital Development team is constantly undertaking complex development initiatives within Global Cyber Security. In this role, you will be a full-stack developer within the SIAI Digital Development team, responsible for designing and implementing software solutions across multiple platforms. Our Digital Development team designs,...

A tech consulting company is looking for a Senior Java Developer with expertise in Java and AWS. The ideal candidate will collaborate with cross-functional teams to design and maintain robust applications while ensuring high-quality code delivery. This contract position values excellent problem-solving and communication skills. Familiarity with Python and...

Aon Corporation in Toronto is seeking a Python Developer to design, develop, and maintain Python tools for PathWise actuarial and financial modelling within the Strategy and Technology Group (STG). You will build automation, contribute to the PathWise Python modelling layer, and develop Azure DevOps pipelines to improve efficiency and reliability in a...

Scribd, Inc. is seeking a senior backend engineer to own the Content Library and Core Infrastructure for its production datastores.You will design and implement Rust services, oversee deployments, and collaborate with data, ML, and product teams at scale. This role requires deep Rust and Python, experience with AWS and data formats like Parquet/Arrow, plus a...

Seequent Limited in Toronto, ON is seeking a Senior Software Developer – Numerical to transform research prototypes into production-grade numerical software. You will design and optimize high-performance libraries and compute kernels using C++, Python, and CUDA, ensuring scalability and robustness. You will collaborate with researchers and engineers to...

HelloFresh Canada is seeking a midlevel software engineer to design, develop, and maintain scalable backend services. You’ll work on distributed systems, migrate critical services to microservices, and mentor junior engineers within a Toronto team that collaborates with global colleagues to keep HelloFresh as a leading meal-kit platform.The role emphasizes...

JPC - 527 - NET Developer / Lead Backend Developer [Toronto, ON, M5A 3N8], Canada 15 Years N/A Primary Skills - Docker - performance tuning - .NET - c# - DEV OPS - Best Practices - Problem-Solving - Agile - QA - Software Architecture - Coding - Microservice - Database - Database Modeling - Distributed Systems - Scrum - Leadership Skills - Coding...

CBRE Group, Inc. is seeking a junior software developer in Canada to grow into a generalist role. You will work across domains on Evergreen, a Python/Qt desktop app with a SQL Server backend, and collaborate with appraisers to understand real-world needs. You will start by migrating a core capability to a first-party plugin within Evergreen, with a...

Shape the future of backend services as a Backend Software Engineer. Focus on creating and reviewing RESTful APIs using Java/Spring Boot for optimal service performance. In the role of Senior Software Developer, you will lead service design efforts and orchestrate API integrations. This strategic position collaborates closely with Business Analysts to...

Yelp is hiring an entry-level Data Backend Engineer to contribute to backend services, data pipelines, and tooling that power real-time enforcement for safety on the platform. You will write production-grade Python code and collaborate with ML engineers to productionize signals, while working with content safety teams to review and act on flagged content and...

Talipay is seeking a Full Stack Backend Developer to innovate in the subcontractor management space. Work primarily remote in this pivotal role that requires backend proficiency. As a senior backend engineer, you will leverage your 8+ years of experience to create powerful server-side applications that enhance our web solutions. You will collaborate with...

Drive data solutions as a Python and Snowflake ETL Analyst. Utilize your comprehensive ETL and SQL development skills in a contract mid-senior level role. Your role will involve the development and optimization of ETL solutions within eCommerce and retail domains. With over 6 years of experience in Snowflake, Python, and SQL, you will employ your technical...

Direct message the job poster from Tata Consultancy Services Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and...

Synechron is a global consulting firm that delivers industry-leading digital solutions across finance and technology. We are seeking a highly skilled Fullstack Developer who excels in Python, .NET, and modern web technologies, and has hands‑on experience building AI/ML‑powered applications. Responsibilities - Design, develop, and maintain full-stack...

Python QE Automation Engineer Location: Austin, TX, Sunnyvale, CA Job Summary We are looking for a skilled Python QE (Quality Engineering) Automation Engineer to design, develop, and maintain automated test solutions for web applications, APIs, and software platforms. The ideal candidate will have strong experience in Python programming, test automation...

You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your potential and soar to new heights. At Sun Life, we're driven by our Purpose: helping our Clients achieve lifetime financial security and live healthier lives. When you join Sun Life, you'll work...

Advance your software development career from anywhere in Canada as a Senior Software Developer. Leverage your expertise in Java, Spring Boot, and Python APIs to create scalable services. We are looking for a Senior Software Developer who can design and develop robust backend services and RESTful APIs. The ideal candidate should have hands-on experience...

Applying to the position, you may join one of the most respected and fastest growing institutional investors in the world. Our client is a professional investment management organization that globally invests the funds to ensure long‑term sustainability. The company invests in all major asset classes, including public equity, private equity, real estate,...