Senior AI Platform Engineer

At Braze, we pride ourselves on our exceptional team—approachable, kind, and passionate individuals dedicated to our mission.We strive to foster this passion by setting high expectations, promoting collaboration, and ensuring a harmonious work-life balance as we grow rapidly on a global scale, all while advocating for equity and opportunities within and beyond our organization.To thrive in this environment, you should be ready to hold yourself and others to high standards. There are always opportunities to contribute: exercising independence, taking responsibility, and welcoming new viewpoints are vital for our sustained success.Our inherent curiosity and willingness to share diverse interests create a vibrant culture that is uniquely ours.If you're motivated to tackle exciting challenges and have a proactive approach to change, you will find the empowerment to make a significant difference alongside a dedicated and enthusiastic team. If Braze resonates with you, we look forward to connecting!WHAT YOU'LL DOAs a Platform Software Engineer (PSWE), you will design and develop the distributed systems that underpin Braze's extensive background processing platform. You will manage Sidekiq at Braze, which processes over a trillion jobs daily across Kubernetes clusters worldwide. Your role will encompass autoscaling systems, metrics pipelines, reliable job execution, and the internal frameworks that ensure distributed processing is safe for application teams.Operating at a colossal scale, Braze serves 3.3 billion monthly active users, collects hundreds of billions of data points monthly, and sends billions of messages each day. Our technology stack includes Ruby on Rails, Go, MongoDB, Redis, and Kafka. As a PSWE, you will collaborate with application teams to enhance the Sidekiq platform they rely on and improve its reliability, performance, and developer experience.Main responsibilities:Develop Braze’s embedded frameworks that enable large-scale distributed processing.Design, build, and operate internal software frameworks that support Braze’s asynchronous and background processing systems at scale.Enhance and extend frameworks built on technologies like Sidekiq to reliably execute over a trillion jobs per day across a globally distributed platform.Oversee scaling behavior, reliability guarantees, failure modes, and operational safety of these systems.Provide structured abstractions, tooling, and guardrails that allow application teams to utilize distributed processing safely while minimizing complexity.Improve observability, debuggability, and overall system performance.

Pinterest, Inc. is seeking a Senior Software Engineer to join the Web Platform team in Toronto, ON. This role centers on designing, developing, and maintaining web applications that serve millions of users around the globe. Role overview The Senior Software Engineer will work closely with cross-functional teams to deliver new features and enhance the online experience for Pinterest users. Collaboration with colleagues from various disciplines is a key part of this position, helping to ensure that new ideas are implemented smoothly and effectively. What you will do Design and build scalable web applications for a large user base Maintain and improve existing web features Collaborate with engineers, designers, and product teams to shape new user experiences Location This position is based in Toronto, Ontario.

About UsAir-tek is an innovative Canadian software company recognized for its unique suite of products that have secured a significant presence in the global market. Our product-market fit is exceptional, and we are experiencing a surge in customer demand. During this phase of rapid growth, we maintain a discreet operational presence.Our diverse team is united by a shared passion for tackling complex challenges, a commitment to innovation, and an ambition to redefine the passenger-centric travel industry. Located in Toronto, we foster an inclusive culture based on trust, collaboration, excellence in product delivery, and continuous personal development. We take pride in our work and support each other as a team.About the TeamThe Platform Engineering team consists of highly collaborative software engineers dedicated to building, scaling, and maintaining the foundational infrastructure that empowers other teams to develop Air-tek’s software solutions. We focus on creating secure, scalable, and efficient infrastructure, employing modern development practices. Our impact is felt across the company as we work closely with operations, support, product management, and other engineering teams to meet Air-tek’s objectives.As a Senior Platform Engineer, you will play a pivotal role in designing, developing, and operating our core platform services, enabling us to deliver robust and reliable infrastructure solutions that support the expanding needs of our products.

About MagicalMagical is an innovative automation platform that integrates cutting-edge AI technology into the healthcare sector, providing AI agents capable of functioning effectively in real-world settings.Our mission is to create 'AI employees' that streamline tedious and time-consuming processes, specifically in healthcare—a massive $4 trillion industry laden with administrative burdens. We focus on automating critical tasks such as claims processing, prior authorizations, and eligibility checks, allowing healthcare professionals to dedicate more time to patient care.Our AchievementsAs pioneers in the transition to agentic automation in healthcare, we have achieved significant traction:Dramatic revenue growth with clients expanding into new workflows ahead of contract renewals.Rapid proof-of-concepts completed in just 7 days, delivering tangible value in an industry where similar timelines typically span months.Self-repairing automations with production-level reliability at scale, outperforming competitors who struggle to launch functional solutions.Unlike many AI firms that make grand promises, we provide dependable solutions that yield measurable outcomes. Our backing includes notable investors such as Greylock, Coatue, and Lightspeed, with a total funding of $41M. Our founder, Harpaul Sambhi, is a seasoned entrepreneur who previously sold his first company to LinkedIn.Role OverviewIn your role as a Senior Backend Engineer on the Agent Platform team, you will develop the core systems that drive our AI agents—covering aspects from orchestration and state management to model integration and evaluation pipelines. This position is centered around platform engineering, focusing on building the infrastructure that empowers our team to deliver reliable, production-grade agentic automation.You will work at the forefront of multi-agent systems, designing collaborative strategies for agents to tackle complex healthcare workflows. You will take ownership of essential backend services, overseeing them from architecture to deployment while developing verification systems that ensure our agents perform accurately every time.This hybrid position requires you to be onsite in our Toronto office two days each week.

Join our dynamic team at Zip as a Senior Software Engineer specializing in our Developer Platform. This is a unique opportunity to shape the future of our technology stack while collaborating with cross-functional teams to deliver high-quality software solutions. You will be responsible for designing, developing, and maintaining robust backend services and APIs that empower our developer community.

Join Waabi, an innovative leader in Physical AI, founded by AI pioneer Raquel Urtasun. We are pioneering the future of autonomous transportation, developing cutting-edge technology for commercial autonomous trucks and robotaxis. Our esteemed team collaborates with top-tier partners across AI, automotive, logistics, and deep technology sectors.With offices located in Toronto, San Francisco, Dallas, and Pittsburgh, Waabi is rapidly expanding and is in search of diverse, innovative, and collaborative individuals eager to make a positive impact on the world. For more information, please visit: www.waabi.aiAt the heart of Waabi’s mission is our groundbreaking simulation technology. Our state-of-the-art closed-loop simulation engine, Waabi World, employs the latest generative AI technologies to create a highly realistic environment for training and evaluating self-driving systems. The Simulation Platform team is tasked with delivering a modular, scalable platform that seamlessly integrates the onboard autonomy system, intelligent actor models, and sensor simulation.Key Responsibilities:- Enhance and contribute to Waabi World, our advanced self-driving simulator, to expedite the development of autonomous vehicles.- Optimize the scalability and performance of the simulation platform to facilitate efficient simulations at a massive scale.- Design and develop orchestration software that interconnects simulation subcomponents, including the autonomy system, data-driven actor models, and sensor simulations powered by generative AI.- Engage in technical and architectural discussions, collaborating with researchers and engineers to share insights and innovative ideas.- Collaborate closely with internal users to grasp their needs and workflows, proposing new features to enhance their experience with the simulator.- Promote best practices and set standards for software development.- Lead complex cross-functional technical projects that have a significant impact across Waabi's systems and the organization as a whole.

Rivian and Volkswagen Group Technologies have joined forces to advance the future of electric vehicles. This partnership brings together deep expertise in automotive engineering, software, and cloud connectivity. The focus is on building technology that sets new standards for software-defined vehicles worldwide, with an emphasis on AI, connectivity, and security. Role overview The Senior Software Engineer - AI Platform will lead architectural design and strategic development for the GenAI platform. This position centers on integrating large language models (LLMs) into both internal and customer-facing applications at scale. The aim is to drive cognitive automation, streamline workflows, and support better decision-making across the organization. What you will do Design and develop AI-driven applications using large language models. Integrate LLMs into production systems for both internal teams and external customers. Establish best practices for building distributed systems that are resilient, scalable, and observable. Deliver production-grade tools that are reliable and maintainable. Location This role is based in Toronto, Ontario.

Fivetran builds technology that helps organizations turn customer data into actionable insights without heavy engineering or ongoing maintenance. The ETL Platform team plays a key role in supporting the core infrastructure behind Fivetran’s sync engine, making sure data flows smoothly and reliably for customers. Role overview The Senior Software Engineer will join the ETL Platform group, focusing on projects that improve how Fivetran captures, stores, and processes large datasets. Recent work includes a Sync Tracking overhaul, which gives customers better visibility into their data movement and helps maintain accuracy and reliability. What you will do Contribute to the foundational systems that power Fivetran’s sync engine Work on initiatives that enhance the tracking and processing of high-volume data Help manage a scalable fleet of machines that adapts to changing customer needs Support the team’s role as essential infrastructure within the company Work arrangement This is a full-time, hybrid position based in Toronto, Ontario. The schedule blends remote work with in-person collaboration, with two days per week in the office for team activities.

Discover OktaAt Okta, we are known as The World’s Identity Company. Our mission is to empower individuals to safely access any technology, regardless of the device or application. Our versatile products, including the Okta Platform and Auth0 Platform, provide secure access, authentication, and automation, making identity a cornerstone of business security and growth.We embrace a diverse range of perspectives and experiences. We are not seeking someone who fits every criterion; rather, we value lifelong learners and those who can enhance our team with their distinct backgrounds.Join us in creating a world where Identity is in your hands.The Streaming Foundations team develops and manages data pipeline infrastructure designed to support event streaming, messaging, and analytics. We are searching for a Software Engineer who is enthusiastic about distributed systems, platform engineering, and tackling data-intensive challenges at scale. In this pivotal role, you will collaborate with engineers across the organization to establish foundational infrastructure that will enable Auth0 to grow sustainably for years to come.

Role Overview Guidepoint is looking for a Senior Platform Engineer to strengthen infrastructure reliability and improve the developer experience. This hybrid role is based in Toronto, Ontario. What You Will Do Enhance the scalability and reliability of a Kubernetes-based cloud environment. Lead the shift toward a self-service platform model for internal teams. Apply software engineering principles to infrastructure challenges. Use Agentic AI to automate complex workflows and develop "Golden Paths" that reduce manual steps. Design and build software to manage and monitor Kubernetes clusters, focusing on resilience, cost-efficiency, and self-healing systems. Location and Work Model This is a hybrid position based out of Guidepoint's Toronto office.

Role overview Harvey seeks a Staff Software Engineer in Toronto to drive the evolution of its AI Platform. The focus is on designing and building scalable systems that can adapt to business needs and deliver reliable performance. Key responsibilities Architect and develop essential components for the AI Platform, prioritizing both performance and scalability. Collaborate with engineers and data scientists to address complex technical challenges. Enhance the platform’s stability, speed, and overall functionality. Collaboration and impact This role works alongside a talented group in engineering and data science. Contributions will have a direct effect on the platform’s capabilities and support Harvey’s business outcomes.

Join our dynamic team at Harvey as a Software Engineer, where you will play a pivotal role in shaping our cutting-edge AI platform. This is an exciting opportunity to work with innovative technologies and contribute to projects that push the boundaries of artificial intelligence.As a Software Engineer, you will collaborate with cross-functional teams to design, develop, and implement software solutions that enhance our AI capabilities. Your work will directly impact the efficiency and effectiveness of our platform, helping to drive our mission forward.

Speechify seeks a Software Engineer in Toronto to focus on platform development. This position plays a key part in strengthening and expanding Speechify’s text-to-speech technology, supporting people who use the platform to access information in new ways. Role overview This role involves designing and building scalable solutions with the engineering team. The work directly shapes the evolution of Speechify’s core text-to-speech features and influences how users interact with the technology. What you will do Collaborate with engineers to create scalable platform components Contribute to improvements and new features for text-to-speech capabilities Play a part in defining user experience and accessibility through technology Requirements Background in software engineering, especially in platform or backend development Interest in building accessible products Strong collaboration skills and openness to teamwork Speechify welcomes those who find meaning in building technology that helps people learn and connect.

About Rootly At Rootly, we are dedicated to revolutionizing the way organizations manage incidents, ensuring that every company can operate with greater reliability. We achieve this by developing a state-of-the-art incident management platform that enables organizations globally to swiftly and effectively address incidents. Our mission goes beyond mere industry transformation; we are forging a brand-new multi-billion dollar segment and require exceptional talent to help us realize this ambitious vision. Rootly has garnered the trust of customers worldwide, including some of the fastest growing companies like NVIDIA, Figma, Canva, Tripadvisor, and Squarespace, who depend on our platform to streamline their critical incident management procedures. Our commitment to delivering a delightful enterprise-ready platform and a distinctive partnership model has resulted in glowing reviews—discover why we’ve earned 5 stars on G2. Our investors share our excitement. Rootly is backed by esteemed funds, including Y Combinator and leaders like the CTOs of Dropbox and GitHub. We are transparent about our financial health and progress, sharing insights during interviews and hosting monthly financial reviews for our team to stay informed about our business's status. Our ongoing developments are documented in our weekly changelog. About the Role This is a unique opportunity to join Rootly as an early engineer and significantly influence our growth journey. You will work on the infrastructure that supports incident response and on-call functions for some of the most innovative teams globally. This role transcends traditional operations; we seek software engineers passionate about infrastructure, developer experience, systems thinking, and dedicated to creating tools that enhance the reliability, performance, and scalability of our engineering organization. At Rootly, we prioritize speed, quality, and impact. Our engineers are encouraged to take initiative and produce high-leverage results—whether by automating processes to eliminate toil, enhancing our observability stack, or bolstering the resilience of our services. You will collaborate closely with product engineers and customers to ensure we remain proactive. If you excel in environments where accountability is paramount, excellence is expected, and reliability is essential, this is the ideal place for you. What You’ll Do Collaborate with product teams to improve the observability, reliability, and performance of their services. Manage our CI/CD pipelines, observability tools, monitoring systems, and incident response processes.

Since its inception, Fivetran has been dedicated to simplifying and ensuring reliable access to data, much like the electricity that powers our lives. Our platform enables customer data to flow effortlessly into their warehouses, structured and ready for querying, without the need for engineering or maintenance. We take pride in empowering organizations to harness the full potential of their data every day.About the RoleJoin our dynamic ETL Platform team at Fivetran, where we are building robust data pipelines to support the modern data architecture of thousands of companies.As a Staff Software Engineer, you will play a pivotal role in managing the core platform that underpins Census’ sync engine. Your responsibilities will include ensuring the seamless flow of customer data—on time, every time. You will design and implement significant projects like our recent Sync Tracking overhaul, which enhances our ability to capture, store, and process large datasets. This provides our customers with unparalleled visibility over their data streams, ensuring that every record reaches its destination accurately. Our team is also responsible for managing a scalable and adaptable fleet of machines to meet the evolving demands of our clients.This is a full-time, hybrid position based in our Toronto office.

At Range Group, we champion the invaluable role of professional travel advisors. Representing over $4.5 billion in annual travel sales, we firmly believe that equipped with the right technology and 24/7 support, travel advisors provide unmatched value to any journey. Our commitment to giving back is embodied in the Range Foundation, which allocates 10% of our group profits to social impact initiatives, from exploration grants and educational access to cultural infrastructure and humanitarian assistance. Join us in shaping a brighter future.This is a hybrid role, requiring two days a week onsite at our Toronto office. Candidates outside the commutable area may be considered for remote work.The RoleJoin TripArc as we develop an AI-driven vacation booking platform designed to empower North American travel advisors with over 10,000 pre-packaged, instantly bookable itineraries.Your responsibilities will encompass both pioneering new features and enhancing existing systems. You'll create new Angular micro-frontend applications, build AI agent pipelines, and integrate with our MongoDB-supported catalog framework for the Vacations Platform while also extending and collaborating with the established ADX booking platform and the new Product Builder. We seek individuals who can navigate both realms seamlessly.You will take full ownership of your tasks from design to deployment, working closely with Product, QA, and your team.Our Development ApproachWe expect all developers to integrate AI coding tools such as GitHub Copilot and others into their workflow as a standard practice. These tools facilitate a faster development cycle while ensuring quality through rigorous code reviews and testing. If you excel at leveraging AI-assisted development without sacrificing quality, you will thrive here.Your ContributionsItinerary Catalog & AI Pipelines: You will be instrumental in building...

At Lyft, we are dedicated to connecting and serving our community. Our mission is to foster a workplace where every team member feels a sense of belonging and can thrive in their roles.The Marketplace teams are integral to our products and strategic decisions. We are in search of passionate and motivated engineers to develop systems that empower our users—both Drivers and Riders—by enhancing their experience with Lyft's offerings, making them more predictive, personalized, and adaptive. If you are enthusiastic about tackling challenges in distributed computing, machine learning, and data while building robust systems, we invite you to join our fast-paced, innovative, and collaborative environment.As a Backend Software Engineer, you will leverage your technical skills to manage project timelines, priorities, and deliverables. You will be responsible for designing, developing, testing, deploying, maintaining, and enhancing our platform offerings, significantly impacting various business areas.We seek self-starters with a proven track record of delivering software solutions that address critical business needs. The ideal candidate will dive deep into complex problems and devise technical solutions to resolve them. Ownership of projects or features, driving them from design to execution, is essential.The Growth Platforms team oversees the Incentives & Messaging systems at Lyft, responsible for delivering timely and relevant messaging and incentives to users. Collaborating with cross-functional engineering teams—including those focused on rider and driver experiences, marketing, and product management—you will help adapt our services and platform offerings to support Lyft's growth. You will have the chance to enhance quality and efficiency through machine learning optimizations that impact critical aspects of our platform.

Join Warner Music Group, a vibrant global community of music creators, innovators, and passionate professionals. Here, we transform dreams into reality and cultivate fandoms that resonate worldwide. Our operations are anchored by three fundamental values that guide our diverse endeavors: • Curiosity: Our creativity flourishes when we explore culture and push boundaries. Curiosity fuels our innovation, which is essential for our future success.• Collaboration: The essence of music-making lies in originality enhanced by teamwork. Great ideas resonate globally, and we ignite passion and forge connections within our diverse network of artists, songwriters, partners, and fans.• Commitment: We strive for excellence for our team and our talent. Every aspect of music involves venturing into the unknown, and we are dedicated to maintaining integrity and fulfilling our promises.Technology is integral to our business. From onboarding new artists to delivering precise data to platforms like Spotify and YouTube, or empowering artists with cutting-edge AI tools and insightful data, technology is the backbone of our success. Our engineering team at Warner Music Group brings these visions to life.We proudly represent a diverse array of artists, musicians, and songwriters who contribute to our achievements. We are committed to fostering a work environment that values, appreciates, and respects every individual, encouraging applications from candidates with a variety of backgrounds and experiences.Consider a career at WMG, where you can enjoy the dynamism of a global music powerhouse while embodying the creative spirit of an independent entity.Your Role:We are developing the next-generation Data Platform, designed to set benchmarks in freshness, accuracy, comprehensiveness, and usability, to empower Warner Music Group’s operations. We are reengineering this platform from the ground up, encompassing:

Join Movable Ink as a Senior Engineer on our Data Platform team, where you will be instrumental in architecting and developing the systems that facilitate data flow across our organization. In this pivotal role, you will contribute to the creation and maintenance of a unified data platform that is responsible for ingesting, processing, and serving substantial volumes of data that underpin our innovative products. Collaborating with cross-functional teams in engineering, analytics, and infrastructure, you will design scalable data ingestion pipelines and backend services that seamlessly integrate data from diverse sources while ensuring reliability, governance, and high availability. Your expertise will guide the modernization of legacy data pipelines towards contemporary architectures, enhancing the cohesion of our products and services in their data access. Your contributions will significantly influence the evolution and enhancement of Movable Ink’s offerings.Key Responsibilities:Contribute to the design and implementation of robust data ingestion pipelines and infrastructure.Facilitate the migration of legacy data management processes to a new platform, ensuring minimal disruption for current data consumers.Establish and monitor SLIs and SLOs for the new data platform, utilizing dashboards and alert alerts to ensure optimal performance.Create a versatile data storage layer that accommodates various use cases, including transactional, analytical, and machine learning workloads.Develop comprehensive monitoring and incident response protocols for all data pipelines and services.Partner with product engineering, analytics, and machine learning teams to define data access strategies.