Jobs for senior python backend at Toronto

Capgemini Canada in Toronto is seeking a seasoned software engineer to design and implement full-stack solutions across Python, Java/Kotlin, React, PostgreSQL, and Snowflake. You will lead ETL pipelines and architect scalable backend services with modern frontend apps. You will champion AI/LLM integration, promote robust testing and SDLC best practices, and...

Instacart is seeking a Senior Backend Engineer to lead core systems powering marketing platforms. You will own data ingestion pipelines, audience targeting services, and a reliable messaging backbone, collaborating across teams to drive impact. Ideal candidates have 5+ years in backend, strong Ruby/Go skills, and experience with Rails and Pandas. This...

Cognizant in Toronto, Ontario, is seeking a Senior Developer – Java for a hybrid role. You will design and deliver scalable backend systems using Java and Spring Boot, collaborating with frontend, QA, DevOps, and product stakeholders to build robust, secure applications. With 8–12 years of experience, you will own RESTful APIs, microservices...

About Us Betstamp is the pricing intelligence layer for sports betting. We turn 200+ sportsbooks, exchanges, and prediction markets into one sharp, real-time view of fair value — for the sportsbooks that price against it, the bettors who bet with it, and the traders who move on it. We launched in 2020, built by professional bettors who needed sharper...

Join Lyft’s Mapping team as a Senior Software Engineer focused on Places and Search. This role offers a hybrid work model, driving key projects for optimized rider service. As a Senior Software Engineer at Lyft, you will play a pivotal role in enhancing the rider and driver experience through mapping innovations. Working with a talented team, you will be...

At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. With 2400+ customers in...

Join Faire as a Senior Software Engineer and empower retailers through innovative technology. Focus on the Insider membership program to drive growth and engagement. This senior engineer role involves owning the backend services that support the Insider membership program. You will collaborate closely with Data Science and Product Development to prototype...

About Us We’re looking for a Staff Engineer -  User Experience (Backend) to join our Patient Platform team and shape the systems that power patient-facing experiences across our health technology platform. This team owns the APIs, orchestration services, and communication infrastructure that enable secure, reliable interactions between patients and our...

Job Description: Senior/Staff Data Engineer (Contract full-time)   We are currently hiring for a Senior/Staff Data Engineer (Contract full-time) to join our newly formed Data & Analytics Engineering team. This team is dedicated to establishing a robust data & analytics engineering foundation at scale, empowering fast data-driven decision-making...

Join Lyft’s Mapping team as a Senior Software Engineer focused on Places and Search. This role offers a hybrid work model, driving key projects for optimized rider service. As a Senior Software Engineer at Lyft, you will play a pivotal role in enhancing the rider and driver experience through mapping innovations. Working with a talented team, you will be...

Join Fulfillment IQ as a Senior Principal Engineer for Zynque, working hybrid in Toronto. Your expertise will elevate a key integration platform supporting logistics operations. This full-time position demands 10+ years of experience in building and scaling cloud-native platforms. You will be responsible for optimizing the architecture and ensuring the...

Elevate hospitality tech outcomes as a Remote Senior Software Application Developer at Breezeway. Focus on building impactful full-stack features to optimize property operations. As a critical member of our product team, you will harness your full-stack expertise in Python and React to drive innovations that benefit short-term rental managers. You’ll...

Elevate enterprise solutions as a Senior Enterprise Developer with expertise in Python, C#, and .NET. Focus on modernizing applications and developing scalable systems within cloud environments. In this crucial role, you will specialize in transforming legacy systems, enhancing application security, and optimizing performance. Your strong background will...

The Company We are representing a well-capitalized, fast-growing B2B technology company that builds high-volume data aggregation platforms. Their infrastructure ingests massive streams of sensor and mobility data from hundreds of fragmented third-party sources, unifying it into a single, reliable API. Some of the largest enterprises in the...

Shape the future of data infrastructure with Confluent as a Senior Engineer specializing in distributed systems. Drive architecturally sound solutions in a cloud-native environment that empowers organizations to harness real-time data. In this pivotal role, you will engage with multi-tenant distributed systems and contribute to the development of innovative...

Shape the future of eCommerce at Flywheel as a Full Stack Senior Engineer specializing in our Perpetua platform. Use modern technologies like Python, Django, and React to deliver data-driven solutions. This senior position focuses on enhancing backend services and developing user-centric applications for small and medium businesses. You will create data...

Make a significant impact at Lyft as a Senior Software Engineer focused on Places and Search. This hybrid role drives innovative solutions to enhance Rider and Driver experiences. In this senior engineering role, you will lead high-impact projects within Lyft’s Mapping organization, ensuring seamless pickup and drop-off experiences. You will collaborate...

Title: Senior ETL QA Engineer Location: Toronto , Ontario  Duration: 6 Months  Introduction We are seeking a highly skilled professional to join our team as a key player in ensuring the quality and integrity of our data processes. This role requires a deep understanding of ETL processes and strong analytical skills to support our backend data...

Job descriptionThe OpportunityWe're at an exciting point: agentic automation is moving from prototype to production, and we need a senior engineer who can own high-impact work end-to-end. You'll turn ambiguous goals into shippable milestones, operate what you build in production, and iterate fast based on real customer feedback — all in a team that moves...

A leading IT consulting firm is seeking an experienced Software Engineer based in Toronto. This role requires a minimum of 7 years experience in software development with strong expertise in cloud technologies, especially AWS services. The candidate will design innovative solutions for contact centres and work in a hybrid model. Candidates should possess...