Senior/Staff Python Developer

Join Acquird as a Senior/Staff Python Developer and be a part of our dynamic team in Toronto! We are looking for innovative minds who thrive in a collaborative environment to drive our software development projects forward. You will be responsible for designing, implementing, and maintaining high-quality software solutions using Python. Your expertise will p…

Join Benevity as a Senior Staff Developer, where you will play a pivotal role in shaping our innovative software solutions. As a member of our talented engineering team, you will lead projects that enhance user experiences and drive our mission forward. Your expertise will help us build scalable and efficient systems that meet the needs of our diverse clientele.

Be Part of the Future of Finance!At Robinhood, we are dedicated to democratizing finance for everyone. With an anticipated transfer of assets totaling $124 trillion expected to be inherited by younger generations in the coming decades, we invite you to join us at the forefront of this monumental movement.About Our Team and Your RoleThe Developer Infrastructure team at Robinhood is crucial in empowering engineers to deliver high-quality software with speed and security. We create and maintain the tools and systems that foster seamless software development experiences across our organization.We strive for infrastructure that is intuitive, robust, and empowering. Our goal is to minimize friction, enhance feedback loops, and boost developer productivity through top-tier tools and operational excellence.We are searching for a Senior Staff Software Developer to lead our Developer Infrastructure initiatives. In this capacity, you will act as a technical leader and architect, influencing the future of developer experience at Robinhood and spearheading projects that enhance velocity, quality, and reliability at scale.This position is based in the office location(s) stated in this job description, aligning with our in-office working philosophy. Please consult your recruiter for further details regarding our in-office expectations.

Hello! We appreciate your interest Are you seeking a fresh opportunity, or simply exploring what's out there? If so, you may be in the perfect spot!We are on the lookout for a Staff iOS Developer to become a vital part of our team, supporting Lightspeed’s Hospitality product group in our mission to penetrate new markets and countries, while enhancing our advanced hospitality commerce platform.In this role, you will focus on the Lightspeed POS application, empowering our customers to manage their tasks efficiently and effectively, wherever they are. Our goal is to ensure that our flagship product meets the needs of our target audience in the EMEA and NOAM markets, with a wide range of integrations with our partners.You will be part of a dynamic and collaborative team, dedicated to continuously improving our engineering practices and delivering cutting-edge technology, all while maintaining a fun work environment. Ultimately, your contributions will revolutionize the hospitality experience worldwide.Your responsibilities will include:Collaborating with top industry talents to enhance our iOS app by creating innovative features and user-centric workflows.Designing and implementing visually appealing, efficient, and functional mobile applications for iOS devices using Swift and Objective-C.Balancing daily tasks between developing new features and maintaining existing integrations, with a strong emphasis on expanding our market presence through innovative iOS functionalities.Reporting to the Team Lead and engaging with Product Managers, UI/UX Designers, and cross-functional teams to ensure seamless integration and performance within our POS system.Participating in daily Agile ceremonies, engaging in creative brainstorming sessions to challenge conventional approaches, and executing innovative solutions that boost user engagement.Upholding high standards of code quality and system reliability, taking ownership of the codebase, and contributing to the robustness of our infrastructure.Enhancing team performance by sharing insights, adopting best practices in iOS development, and constantly seeking opportunities for innovation and improvement.Explore our Tech Stack here.

About UsAir-tek is a dynamic software development company based in Canada, renowned for our innovative suite of unique products that have captured a significant share of a vast global market. Our strong product-market fit has led to a growing demand from clients worldwide, and as we enter this pivotal growth phase, we maintain an intentional stealth mode to enhance our strategic positioning.Our diverse and talented team is driven by a shared passion for tackling complex challenges, fostering innovation, and reimagining the passenger-centric travel industry. Situated in Toronto, our inclusive workplace culture prioritizes trust, collaboration, exceptional product delivery, and continuous personal development. We take pride in our work and are dedicated to supporting our colleagues.

Findem is looking for a Senior Staff Full Stack Engineer based in Toronto or working remotely. This role centers on building and improving the company’s platform through hands-on development and close collaboration with colleagues from different disciplines. Role overview This position involves designing, developing, and refining features that support Findem’s products. The Senior Staff Full Stack Engineer will work with cross-functional teams to deliver solutions that drive the platform forward. What you will do Develop and enhance platform features using full stack technologies Collaborate with product, design, and engineering teams to deliver impactful updates Apply deep experience in full stack development to solve technical challenges Requirements Extensive background in full stack engineering Experience working with cross-functional teams Ability to work remotely from Toronto or elsewhere

Be a part of the financial revolution!At Robinhood, our mission is to democratize finance for everyone. With an anticipated $124 trillion in assets being transferred to younger generations over the next 20 years, we are on the brink of the largest wealth transfer in history. If you're excited to play a pivotal role in this monumental shift in culture and finance, we want to hear from you!About the Team and RoleWe are assembling an exceptional team to tackle some of the most significant challenges in finance using cutting-edge technologies. We're seeking innovative thinkers, exceptional problem-solvers, and passionate builders who are eager to make a difference. Robinhood is a dynamic environment where high achievers excel and complacency is not an option. Our team operates with a strong ethical foundation, with high expectations and equally high rewards.The Backend Platform team is dedicated to facilitating rapid, secure, and dependable backend development at scale. We develop and maintain frameworks, libraries, and tools that empower hundreds of engineers across our backend services. By optimizing development workflows, enhancing security practices, and standardizing service architecture, our team significantly influences how swiftly and safely we deliver products to our customers. You will help build the foundation that backend engineers rely on every day!As a Senior Staff Software Developer, you will set the technical direction and spearhead large, cross-team initiatives aimed at enhancing backend system development and operations. You will architect and promote the adoption of essential platform capabilities like service frameworks, static analysis systems, and developer tools. This position focuses on addressing complex systemic challenges, shaping engineering practices across teams, and ensuring the long-term scalability and reliability of our backend development. You will also provide technical mentorship to engineers and contribute to the planning and execution of significant platform investments!This role is situated in our Toronto office, with an expectation of in-person attendance for at least 3 days a week.At Robinhood, we recognize the value of in-person collaboration in driving progress, fostering innovation, and building community. Our office environment is purposefully designed to be energizing and supportive of high-performing teams.

Be a part of revolutionizing finance.At Robinhood, we are committed to making finance accessible for everyone. With an estimated $124 trillion poised to transition to younger generations over the next two decades, we offer you the opportunity to be at the forefront of this monumental shift in cultural and financial landscapes. If you are ready to join us, we invite you to learn more.About the Team & RoleThe Cloud Networking team at Robinhood is dedicated to creating scalable, secure, and dependable networking infrastructure that facilitates communication across all our services. Our mission is to empower engineering teams to seamlessly build and operate microservices by providing foundational networking capabilities that are both resilient and transparent.We are seeking a Staff Software Platform Engineer to architect, develop, and enhance our foundational platform for large-scale services, with a focus on AWS, Kubernetes (K8s) on Amazon EKS, modern networking strategies, and a robust Istio service mesh to ensure secure, reliable, and high-performance systems. This role is integrated into the Network Service Discovery and Communication (SDC) team, which is responsible for service discovery, traffic management, and resilient service-to-service communication across our platform.This position is based in our Toronto office, aligning with our in-office work culture. For further details about our in-office philosophy and expectations, please consult with your recruiter.Your ResponsibilitiesLead the technical strategy and implementation for platform networking, traffic management, and multi-tenant/multi-cluster EKS environments.Design and manage resilient service mesh topologies using Istio, including mTLS, traffic policies, ingress/egress rules, rate limiting, and observability, with Envoy-based extensions as necessary.Establish and enforce platform standards for HTTP/REST and gRPC APIs, covering versioning, contract governance, and performance/SLO baselines.Develop automation, tools, and streamlined processes in Python and Go (Golang) to enhance developer productivity, operational safety, and release processes.

Who We Are: At Emburse, we don’t just envision the future – we actively create it. As a frontrunner in travel and expense management solutions, we are pioneering a future where technology fuels business success and fosters remarkable outcomes. Our AI-driven platform empowers organizations to modernize their financial workflows, enhance visibility, and optimize expenditures across the board.As a Software Engineer at Emburse, you will play a pivotal role in developing an engaging and cohesive suite of system solutions. Your contributions will not only enhance customer experiences but also tackle exciting challenges and innovate new solutions. Renowned for our forward-thinking approach and award-winning technologies, Emburse boasts a strong engineering culture, providing you the opportunity to collaborate with some of the brightest minds in the industry and advance your career.

A Few Notes:Thriving B2B SaaS organization with teams operating across North America.This position offers a predominantly remote work arrangement based in Toronto, with monthly team meetings.Candidates must possess legal authorization to work in Canada; visa sponsorship is not an option.We are expanding our Engineering team and seeking a Full Stack Developer skilled in Python and React to join our applications team.We welcome applicants with experience levels ranging from Upper Intermediate to Staff Engineer.This role encompasses full-stack responsibilities, but we are open to candidates who have a stronger focus on back-end development.About Us:We are recognized as a leading retail analytics platform, empowering marketing teams and brands to gain insights from their retail data and execute targeted media campaigns without needing coding skills. Our mission is to enhance our clients' understanding of their customers while maximizing the return on their marketing investments. Notably, one of our significant clients is Home Depot.Our Technology Stack: Python, Django, React, Typescript, Azure.How We Work:We foster a collaborative environment with an array of exciting and complex projects.We support the exploration of new technologies, reflecting our identity as a modern tech company.Our focus is on sustainable development; we are already profitable and prioritize quality.With a remote work setup, we convene once a month in Toronto and hold biannual company retreats.About You:We are on the lookout for a remarkable Senior/Staff/Lead Full Stack Engineer eager to make a significant impact on our applications team.Key Responsibilities:Full Stack Development: Manage end-to-end client feature development, from initial design to final delivery.Integration Projects: Collaborate with industry leaders like Meta, TikTok, and Snapchat within the ad tech domain.User Interface Enhancements: Optimize the UI experience for our enterprise clients.Qualifications:Over 6 years of full-stack development experience in creating enterprise-level B2B/B2C SaaS applications.

Join Our Team as a Senior Platform Engineer (Python)About Us: As a leading B2B SaaS company focused on retail analytics, we empower brands and marketing teams to optimize their media campaigns and understand retail data without needing to write code. Our clients, including major players like Home Depot, rely on us for actionable insights that enhance their customer engagement and ROI.Work Environment: This role offers a hybrid work arrangement, with 95% remote work and monthly in-person meetings to foster collaboration among our Toronto-based team.Who We're Looking For: We are seeking a dynamic Senior Platform Engineer to contribute significantly to our Platform team, focusing primarily on back-end development with some responsibilities in infrastructure and DevOps.Key Responsibilities:API Development: Enhance platform scalability and data performance through innovative API designs.Integration Projects: Collaborate with industry giants like Meta, TikTok, and Snapchat on complex ad tech integrations.Task Management Optimization: Take charge of our async task management using Celery, focusing on improving concurrency and managing resource-intensive jobs.Why Work With Us?Our team thrives on collaboration, embracing complex challenges while exploring new technologies. We are committed to building long-term solutions, maintaining profitability, and ensuring quality in everything we do.

Join Waabi, a pioneering force in Physical AI, founded by the visionary Raquel Urtasun. We are at the forefront of revolutionizing autonomous transportation, developing cutting-edge technology that powers commercial autonomous trucks and robotaxis. With esteemed partnerships in AI, automotive, logistics, and deep tech, we are shaping the future of transportation.Located in Toronto, San Francisco, Dallas, and Pittsburgh, Waabi is rapidly expanding and seeking diverse, innovative, and collaborative individuals eager to make a positive impact on the world. Discover more about our journey at: www.waabi.aiYour Role:- Collaborate within a multidisciplinary team of Engineers and Researchers, utilizing an AI-first approach to ensure safe self-driving technology is deployed at scale.- Develop robust and scalable tools and frameworks that support Autonomous Vehicle (AV) development.- Lead technical discussions and architectural planning in collaboration with both Researchers and Engineers.- Mentor fellow software engineers through code reviews, design discussions, and by sharing best practices in software development.- Assist with task planning and estimation to enhance project efficiency.

Join MaintainX as a Senior Integrations Developer and play a pivotal role in enhancing our integration platforms. You will be responsible for designing, developing, and maintaining integrations that drive operational efficiency and improve user experience. The ideal candidate will have a strong technical background, be passionate about integration technologies, and thrive in a collaborative environment.

Join Our Team! The Loyalty & Virality tribe is integral to HelloFresh's strategy for customer retention and organic growth. We develop innovative products and systems that engage customers, reward loyalty, and encourage them to share their HelloFresh experiences with others. Our team is responsible for loyalty and rewards programs, referral systems, viral growth mechanics, and personalized re-engagement experiences, functioning at a global scale across various brands and markets. We combine profound product insight with data-driven experimentation, leveraging AI to create smarter, more personalized customer experiences. If you're enthusiastic about building systems that transform satisfied customers into loyal advocates, this is the ideal team for you! Explore more about our initiatives by visiting our tech blog. Key Responsibilities: Act as a senior technical authority within the Loyalty & Virality tribe, establishing architectural direction, driving technical excellence, and mentoring fellow engineers. This influential individual contributor role significantly impacts the global scaling of our referral and virality systems. Define and oversee the technical strategy for our referral and virality platform, ensuring that our systems remain flexible, resilient, and scalable across all HelloFresh brands and markets. Take complete ownership of the architecture, design, development, deployment, and operations of the Share squad’s microservices. Promote the integration of AI and machine learning within the squads, identifying opportunities for enhancing personalization, predictive engagement, and intelligent reward optimization. Collaborate actively as a solution-oriented member of an autonomous, cross-functional agile team, working closely with Product Owners, Engineers, Designers, and Business Intelligence teams. Facilitate effective communication across the engineering organization, ensuring technical alignment among diverse stakeholders and colleagues. Perform additional duties as assigned. Qualifications: Extensive experience with microservice architecture and event-driven systems (e.g., Kafka, RabbitMQ), alongside distributed architecture principles. Strong proficiency in programming languages and frameworks pertinent to our tech stack. Demonstrated ability to mentor and lead technical discussions, fostering a culture of excellence and continuous improvement. Excellent communication skills, with the ability to articulate complex technical concepts to a non-technical audience. A passion for leveraging data and technology to enhance customer experiences.

We are seeking a highly skilled Senior Java Developer with over 8 years of robust experience in Java, J2EE, REST services, and Spring frameworks. Your background in Banking and Financial Services will be a distinct advantage as you join our dynamic team. You should possess the ability to swiftly learn new programming languages and effectively communicate your ideas while being open to feedback. A solid understanding of the business line and a knack for delivering high-quality results will be considered valuable assets. We expect you to actively seek enhancements in all areas of the development process. A general knowledge of computing and the ability to incorporate outside knowledge into your work will also be beneficial. Experience with Agile methodologies is preferred.

Endava seeks a Senior Synon Developer based in Toronto to design, develop, and maintain software solutions using Synon. This position supports client projects and ongoing enhancements. Role overview The Senior Synon Developer will work alongside cross-functional teams to deliver software projects. The focus is on building and supporting applications that meet client needs and drive continuous improvement. Key responsibilities Design and develop software solutions with Synon Maintain and enhance existing Synon-based applications Collaborate with teams across disciplines to deliver projects Support ongoing improvements for client solutions Location This role is based in Toronto.

Canonical, a front-runner in open source software solutions, is seeking a talented MAAS Systems Engineer to enhance data center operational efficiency in our Toronto lab. In this role, you will manage day-to-day operations, develop tooling for automated server and network switch deployment, and tackle complex challenges related to hardware commissioning and performance optimization. Ideal candidates possess solid Python programming skills and a passion for distributed systems. Join us and contribute to transformative enterprise projects utilizing cutting-edge technologies!

About FaireFaire is a dynamic online wholesale marketplace driven by the belief that the future lies in local commerce. Independent retailers worldwide are achieving greater revenue than giants like Walmart and Amazon combined, yet remain relatively small in stature. At Faire, we harness the power of technology, data, and machine learning to connect this vibrant community of entrepreneurs around the globe. Imagine your favorite local boutique—we empower them to discover the finest products globally to stock their shelves. With the right tools and insights, we aim to level the playing field, enabling small businesses everywhere to compete against large box stores and e-commerce behemoths.By championing the growth of independent enterprises, Faire fosters positive economic impacts within local communities on a global scale. We are on the lookout for intelligent, resourceful, and passionate individuals to join us as we drive the shop-local movement. If you believe in the power of community, we invite you to be a part of ours.Role Description:Our Engineering organization is the backbone of our marketplace, responsible for the software that enables it to function seamlessly. The Product Security team empowers product engineering teams to create and deploy secure software solutions. We prioritize best engineering practices, striving to deliver software that is secure, thoroughly tested, easy to maintain, and capable of scaling to millions of users. We develop scalable, reusable frameworks, consult with product teams, leverage data-driven insights, and continually iterate on our practices.As a Senior Staff Software Engineer in Product Security, you will take on the role of technical lead for the Product Security domain. You will establish the long-term technical vision for integrating security within Faire’s application framework. Collaborating closely with Platform and Product Engineering teams, you will identify and mitigate security vulnerabilities, spearhead significant security initiatives, and mentor engineers across the organization to enhance secure engineering practices.Additionally, you will lead cross-functional programs to embed security deeply within our architecture, pipelines, and developer experience, effectively minimizing risk while maintaining development velocity.In this role, you will:Define the long-term technical strategy for application security at Faire, establishing scalable and developer-friendly frameworks and principles that facilitate secure development across all product areas.

Infrastructure Technical Staff MemberOn-site | Full-timeCompensation: CA$190K – CA$280KJoin our innovative team at mlabs as we create open-source browser infrastructure that drives the future of AI agents. With over 6,000 stars on GitHub and millions of browser sessions served monthly, our platform has experienced phenomenal growth, expanding 50x in 2025 alone. Our technology empowers developers to create seamless web interactions through our robust API.As one of the pioneering team members, you will collaborate with a high-performance group of four talented individuals, backed by top-tier investors, as we tackle the most challenging issues in distributed systems—from kernel-level debugging to global VM orchestration.The RoleAs an Infrastructure Technical Staff Member, your mission will be to build and enhance the distributed systems that support millions of browser sessions. Given the resource-intensive nature of browsers, your focus will be on optimizing performance, ensuring rapid startup times, and maintaining strong multi-tenant isolation across our infrastructure.Key Responsibilities:Global Orchestration: Design and maintain VM orchestration using technologies such as Nomad, Firecracker, and Kubernetes, with a focus on intelligent scheduling and achieving sub-second cold starts.Systems Engineering: Implement kernel-level observability with eBPF and enhance resource isolation through cgroup v2 and NUMA scheduling.Networking: Develop high-performance networking layers, including anycast routing and cross-region failover.Infrastructure as Code: Manage multi-cloud deployments across AWS, GCP, and Azure while overseeing customer VPCs with Pulumi.Product Ownership: Create developer tools for reliable browser automation and actively contribute to our open-source ecosystem.RequirementsExperience: A minimum of 5 years in operating production-scale distributed systems capable of processing thousands of requests per second.Linux Internals: Extensive knowledge of the Linux kernel, syscall optimization, and eBPF.Security & Isolation: Proven experience with multi-tenancy, resource limits, and security boundaries.Network Fundamentals: Competency in diagnosing complex production issues such as packet loss or routing failures at the protocol level.Execution: A proactive approach to ownership of outcomes from architecture through to deployment.

Join our dynamic team as a Senior .NET Web Developer, where your extensive expertise in the .NET framework will be utilized to lead and innovate. We are looking for individuals who excel in both collaborative and leadership roles.Key Responsibilities:Design, develop, test, debug, and deploy cutting-edge web-based and mobile applications.Enhance and maintain existing C# applications across web and mobile platforms.Develop and maintain SQL databases, including tables, views, and stored procedures using Microsoft SQL Server 2008 and above.Communicate effectively regarding project status and proactively identify technical risks.Ensure application security and integrity throughout its lifecycle.Support production systems by analyzing and troubleshooting issues as they arise.Share technical expertise to guide and mentor team members within the organization.Collaborate with internal and external stakeholders during the application development lifecycle.Assist in planning and documenting site architecture and associated artifacts.Implement best practices and architectural standards to enhance overall software quality.Evaluate and recommend technologies based on current product needs and market trends.Devise innovative solutions and prepare technical design and architecture documents.Re-architect legacy systems to enhance scalability and prepare for cloud readiness.