Senior Software Engineer - AI Platform

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.

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.

Join Affinity as a Senior AI Engineer on our AI Platform team, where you will leverage your expertise in artificial intelligence to drive innovative solutions. In this role, you will collaborate with cross-functional teams to design, develop, and implement AI models that enhance our product offerings. You will work in a fast-paced environment, utilizing cutting-edge technologies to solve complex challenges and improve user experiences.

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.

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.

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.

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.

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.

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.

Klue develops competitive intelligence solutions for businesses, with a growing engineering team in Toronto. The Senior Software Engineer, AI, will help shape the next generation of LLM-powered agents and advanced search systems. Role overview This position centers on designing and optimizing backend systems for agentic workflows. The work involves retrieval-augmented generation (RAG), dense retrieval, query understanding, and agentic reasoning. The goal is to deliver fast, accurate, and reliable search experiences for Klue's clients. What you will do Develop and deploy backend systems that support agentic workflows. Build retrieval pipelines, orchestration layers, and multi-step agent architectures to transform large volumes of competitive data, news, press releases, web updates, Slack, email, reviews, and CRM information, into actionable intelligence. Lead evaluation of agentic systems. Create and maintain automated, offline, and human-in-the-loop evaluation frameworks. Define success metrics and build infrastructure for continuous measurement of relevance, quality, latency, and task success. Design and refine retrieval and ranking systems. Work across hybrid retrieval, re-ranking, query rewriting, and post-retrieval synthesis. Balance trade-offs between BM25, dense retrieval, and hybrid methods to ensure agents provide timely and relevant information. Enhance LLM-powered workflows. Improve prompt design, retrieval strategies, caching, and latency to make agent responses faster, more accurate, and more reliable in production. Prioritize customer-centric development. Connect technical decisions to customer outcomes. Use insights from customer interactions to guide feature prioritization and improvements, adopting an iterative approach and measuring impact. Location This position is based in Toronto, Ontario. Learn more about Klue at klue.com.

At Tenstorrent, we are at the forefront of pioneering AI technology, setting new standards for performance, usability, and cost-effectiveness. As AI reshapes the technological landscape, our solutions are evolving to integrate advancements in software models, compilers, platforms, networking, and semiconductors. Our talented team has designed a high-performance RISC-V CPU from the ground up, driven by a passion for AI and a commitment to building the leading AI platform. We prioritize collaboration, curiosity, and tackling challenging problems, and we are expanding our team to include contributors of all experience levels.Become a vital part of the team transforming AI computing at Tenstorrent. You will engage with TT-Forge, our MLIR-based compiler that allows developers to optimize AI workloads across all configurations of Tenstorrent hardware using an open-source, efficient, and versatile compiler. You will be at the cutting edge of the AI hardware revolution, contributing to compiler technologies that expand the horizons of what’s achievable.This position offers a hybrid work environment based in Toronto, ON.We encourage applications from candidates with varying levels of experience. During the interview process, we will assess candidates to determine the appropriate level, and offers will align accordingly.

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.

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.

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.

Join shyftlabs as a Sales Engineer specializing in AI and Data Platforms. In this role, you will leverage your technical expertise to support the sales team in delivering innovative solutions to our clients. You will work closely with customers to understand their needs and demonstrate how our products can drive their success. Your ability to communicate complex technical concepts in an understandable way will be key to your success.

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 Braze, our team is not just a workforce; we are a community of approachable, kind, and passionate individuals. We are united by a shared commitment to excellence, teamwork, and a harmonious work-life balance as we navigate rapid global growth while promoting equity and opportunity within and beyond our organization.To succeed in our environment, you must be ready to set high standards for yourself and inspire those around you. We believe there is always a way to contribute; autonomy, accountability, and openness to new perspectives are critical to our success.Our insatiable curiosity and eagerness to share diverse interests create a unique vibrancy in our culture. If you are motivated to tackle exciting challenges and embrace change with action, you will have the opportunity to make a significant impact alongside a dedicated and passionate team. If Braze resonates with you, we are eager to meet you!WHAT YOU'LL DOJoin the AI Platform team at Braze to develop and expand the BrazeAI Decisioning Studio—a cutting-edge reinforcement learning platform that spearheads AI Decisioning. This platform facilitates continuous experimentation and tailors customer engagement at an individual level, enabling brands to evolve from traditional rule-based campaigns to autonomous, self-optimizing interactions. You will work at the intersection of cloud-native infrastructure, data-intensive systems, and machine learning in production.Key Responsibilities:Design and uphold essential services and subsystems on our AI platform, balancing performance with cost efficiency.Implement cloud-native solutions that guarantee reliability, scalability, and fault tolerance.Resolve production incidents comprehensively, delving deep to identify root causes and apply sustainable fixes.Contribute to observability practices using Sentry and Datadog to proactively identify issues and reduce downtime.Collaborate with data scientists, ML engineers, and product teams to transform real-world use cases into platform capabilities.Enhance the developer experience by optimizing workflows, improving tools, and advocating for MLOps best practices.Technological Stack:Core Data & ML: Python, Ibis, FastAPI, Dataproc (Spark), SQL, BigQuery, MLflow, StreamlitPlatform & Infrastructure: Google Cloud Platform, AWS, Kubernetes, Helm, TerraformWorkflows & Orchestration: Airflow, RabbitMQ, CeleryCI/CD: GitHub Actions, Jenkins