Senior Software Engineer, AI

About Klue Klue builds competitive intelligence solutions for businesses. The Toronto-based engineering team is growing and looking for a Senior Software Engineer, AI, to help shape the next generation of LLM-powered agents and search systems. Role Overview This position focuses on designing and optimizing backend systems that support advanced agentic workflows. The work centers on retrieval-augmented generation (RAG), dense retrieval, query understanding, and agentic reasoning, all aimed at delivering fast, accurate, and reliable search experiences for Klue's clients. What You Will Do Develop and deploy backend systems for agentic workflows. This includes building retrieval pipelines, orchestration layers, and multi-step agent architectures that turn large volumes of competitive data, such as news, press releases, web updates, Slack, email, reviews, and CRM information, into actionable intelligence. Lead large-scale evaluation of agentic systems. Create and maintain evaluation frameworks (automated, offline, and human-in-the-loop) to measure relevance, quality, latency, and task success. Define success metrics and build infrastructure for continuous measurement. 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 deliver timely, relevant information. Enhance LLM-powered workflows. Improve prompt design, retrieval strategies, caching, and latency to make agent responses faster, more accurate, and reliable in production. Prioritize customer-centric development. Connect technical decisions to customer outcomes. Use insights from customer interactions to guide feature prioritization and improvements. Adopt an iterative approach, measure impact, and adjust as needed. Location This role is based in Toronto, Ontario. Learn More For more about Klue, visit 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.

Role Overview Lyft is hiring a Senior Software Engineer focused on AI-driven developer productivity in Toronto, Canada. This role centers on building and improving tools that help developers work more efficiently. The team explores new AI solutions to remove friction and simplify workflows. What You Will Do Partner with engineers, product managers, and other teams to identify pain points in the development process Design, build, and maintain software that uses AI to boost developer effectiveness Implement new features and improvements that make development smoother and faster Contribute ideas and technical expertise to shape how Lyft’s engineering teams work Impact This position plays a key part in shaping Lyft’s internal tools and development practices. The work directly supports engineers across the company, making it easier for them to deliver quality software.

About Future Secure AI Future Secure AI develops artificial intelligence solutions for real-world business challenges. The company’s technology supports teams across industries, emphasizing bold thinking, rigor, and curiosity. BRAVER values shape both the work and team culture, encouraging open communication and making space for every voice. Leadership maintains an open-door policy and supports individual growth as the company advances AI together. Role Overview: Senior AI Engineer – Software Development Senior AI Engineers (Software) at Future Secure AI lead customer-facing projects and collaborate with both client and partner technical teams. The role also works closely with internal groups to refine and improve technology solutions. Responsibilities span hands-on coding and aligning technical work with broader business and product strategies. Strong organizational skills and a drive to advance AI technology are essential. Locations Austin, TX New York, NY Toronto, CAN

Role OverviewAt PolicyMe, we are dedicated to revolutionizing the insurance industry by making it more straightforward, accessible, and focused on the customer. Despite being a trillion-dollar market, the insurance sector has remained relatively untouched by digital transformation, and we aim to change that narrative. As a remote-first startup based in Toronto, we are on a mission to shape the future of insurance in Canada and beyond.We are in the process of developing an innovative product line designed to enhance the insurance broker experience through the power of AI and machine learning. As a Senior Software Engineer with a focus on AI-driven full-stack development, you will be integral to a pioneering team that designs and implements intelligent systems. Your work will automate manual processes and provide valuable data-driven insights.In this role, you will engage with both front-end and back-end development, contribute to AI/ML initiatives, and participate in architecture discussions, release planning, and broader engineering initiatives. Our technology stack includes Python, React, Redux, PostgreSQL, n8n, LangChain/LangGraph, and AWS, and we are always enthusiastic about integrating new tools and technologies to enhance our results.

Position Overview:Join our innovative engineering team at eScribe as a Senior Software Engineer. In this pivotal role, you will design, develop, and maintain essential software applications that drive our business forward. Your expertise will guide the evolution of our technology stack, tackle challenging problems, and mentor junior engineers. Embrace AI-assisted development methodologies and contribute to cutting-edge AI features to enhance our product offerings, ensuring efficient delivery and superior code quality. This position is perfect for a skilled engineer eager to thrive in a dynamic and collaborative setting.Key Responsibilities:Lead the design, implementation, and upkeep of high-caliber software applications and features.Take charge of intricate projects, providing technical direction, mentorship, and support to junior team members.Influence architectural decisions to guarantee software systems are scalable, performant, and maintainable.Write reusable code, develop libraries for future use, conduct code reviews, and uphold coding standards.Establish and maintain coding best practices while ensuring top-notch code quality through thorough reviews.Analyze complex technical issues, optimizing code and enhancing system performance.Collaborate effectively with cross-functional teams, including product managers, designers, and fellow engineers, to deliver innovative software solutions.Develop comprehensive test plans and execute testing to ensure software reliability and robustness.Create and maintain technical documentation, including architecture diagrams, API specifications, and best practices.Actively engage in agile development processes, including sprint planning, stand-ups, and retrospectives.Utilize AI-assisted development tools (e.g., Claude Code, PlayerZero) to boost personal productivity, accelerate development velocity, and improve code quality.Contribute to the integration of AI capabilities into our software solutions by developing AI-powered features alongside senior engineers.

Your Role in Transforming Global WorkAt Pebl, we empower organizations with our AI-driven Global Work Platform™, enabling seamless hiring, payroll, and employee management in over 185 countries. We alleviate complexities, mitigate risks, and eliminate bureaucratic hurdles, allowing businesses to scale confidently. With over a decade of expertise in compliance and local regulations, we help our clients grow rapidly while adhering to global standards.Your Impact Starts HereJoining Pebl means more than just a job; it’s about making a significant impact. Every individual contributes to our collective success, guided by our core values. Your efforts will directly influence our ability to compete and innovate in the global market.What We’re Looking For:We seek a talented Senior Software Engineer to enhance our Payroll Engineering team. In this pivotal role, you will be responsible for designing, developing, and scaling robust payroll solutions that are essential for customer engagement, retention, and acquisition. Collaborating closely with product managers, designers, and fellow engineers, you'll tackle challenging problems and deliver impactful features. You will take ownership of your work, prioritize code quality, and strike a balance between rapid development and long-term sustainability.Your Responsibilities:Collaborate with cross-functional teams to develop and deliver scalable, high-quality software solutions.Design, implement, and maintain applications and services utilizing TypeScript, Postgres, and AWS in a serverless architecture.Enhance existing systems and processes to optimize customer acquisition and retention strategies.Set an example by writing clean, maintainable code while also mentoring junior engineers and promoting a culture of learning.Participate in technical discussions, design reviews, and code reviews to uphold high engineering standards.Identify and troubleshoot complex issues in production environments.Keep abreast of emerging technologies and industry best practices to drive continuous improvement.

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.

About Klue Klue builds tools for competitive intelligence. The team focuses on helping organizations turn information into actionable insights. Role Overview: AI Software Engineer (Toronto, Ontario) Klue is growing its Engineering team in Toronto. The AI Software Engineer will focus on developing and refining LLM-powered agents that support reasoning, planning, and workflow automation. This role centers on practical applications of large language models as Klue evolves its insight generation systems. Candidates with strong backend and machine learning backgrounds will find opportunities to work hands-on with modern AI systems. Key Responsibilities Design retrieval-augmented generation (RAG) systems to improve query understanding, document retrieval, and response synthesis using agentic workflows. Build and optimize retrieval pipelines with approaches like BM25, dense retrieval, hybrid retrieval, and re-ranking. Create evaluation frameworks for retrieval and generation, focusing on offline metrics such as recall, MRR, nDCG, and human-in-the-loop assessments. Experiment with query rewriting, expansion, and classification techniques to improve retrieval relevance. Work closely with Product teams to launch machine learning-powered search agents in production environments. Monitor, debug, and optimize latency, accuracy, and scalability for retrieval and generation components. Help design and implement data pipelines for training retrieval and ranking models, including dataset curation, augmentation, and labeling workflows. Keep up with new developments in LLMs, retrieval strategies, and agent architectures, and assess their fit for Klue’s systems. What Klue Looks For Proven experience in software engineering. Familiarity with information retrieval systems, search relevance, and ranking models. Strong foundation in machine learning and backend technologies. Ability to collaborate well within a team setting.

About PalonaAt Palona, we are innovating operational systems for the restaurant industry with a mission to empower restaurateurs to manage their establishments with unparalleled efficiency. We specialize in creating real-world AI systems that function continuously in a production environment. Our focus is on developing AI agents capable of perceiving, reasoning, remembering, and taking action within complex physical settings.Restaurants present intricate physical environments that our AI must navigate. We are dedicated to research that stands up to real-world challenges, assisting us in understanding and acting effectively.Join Us in TorontoToronto boasts one of the most dynamic culinary scenes in North America, home to nearly 10,000 restaurants. Our proximity to clients enhances our ability to deliver tailored solutions. The city continually attracts top AI talent, excelling in both foundational AI research and practical applications. Palona is eager to broaden our engineering and research footprint in Toronto, and we invite you to be part of our Toronto office.Who is a Good Fit for Palona?You consider yourself an advanced AI software engineer, always exploring the latest AI tools and technologies.You believe your productivity exceeds that of your peers by at least tenfold.You are passionate about delivering exceptional products to your customers.You want to create innovative and exciting products.You value collaboration and care for your teammates.Who May Not Be a Good Fit for Us?You have yet to experience a transformative moment in AI.You have not been concerned about the costs associated with AI model tokens.You do not prioritize good software design principles.You are not focused on customer satisfaction.Job DescriptionWe are looking for an AI Software Engineer with a strong track record in developing comprehensive end-to-end AI products from the ground up in startup settings. You will design, develop, and deploy autonomous AI systems from inception to production. We seek quick learners who thrive on challenges and have experience delivering AI products independently in fast-paced, resource-limited environments. This role necessitates in-person commitment in Downtown Toronto.Key ResponsibilitiesDesign and deploy complete end-to-end AI products and intelligent agents from concept to production.Create autonomous systems and multi-agent architectures to address complex challenges.Launch AI agents into production with a strong emphasis on reliability and performance, utilizing cutting-edge AI models (LLMs, VLMs).Rapidly prototype and refine AI solutions in an agile startup atmosphere.Take full ownership of projects, delivering the most impactful results for our customers.

About Us:At Cohere, our mission is to enhance intelligence for the betterment of humanity. We specialize in training and deploying cutting-edge models for developers and enterprises, empowering them to create remarkable AI-driven experiences such as content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We believe our efforts are pivotal in advancing the widespread integration of AI.We take immense pride in our creations, and each team member plays a crucial role in enhancing our models and delivering exceptional value to our clients. Our culture is rooted in hard work and agility, always prioritizing the needs of our customers.Cohere brings together a diverse team of researchers, engineers, designers, and more, all deeply passionate about their respective fields. We recognize that a variety of perspectives is key to developing outstanding products.Join our mission to shape the future of AI!Why This Position Matters:Are you driven by a passion for secure software development? Do you aspire to be at the forefront of AI innovation while ensuring enterprise security? Join Cohere's North team as a Senior Software Engineer focused on security, and make a meaningful impact.Your Responsibilities:In this pivotal role, you will be instrumental in constructing and securing the architecture of North, our AI workspace platform. Your key responsibilities will include:Designing and deploying security features for North, our AI workspace platform.Creating autonomous agents capable of interacting securely with sensitive enterprise data.Developing minimal code that operates in low-resource environments, adhering to rigorous deployment standards.Integrating new tools to enhance the security features of North.Reinventing solutions as needed to meet stringent security and privacy requirements, sometimes necessitating the development of custom solutions.Conducting application security testing to ensure your code withstands real-world threats.Ideal Candidate Profile:5+ years of experience in software engineering with a solid emphasis on developing user-facing security features.Proficient in Python with a proven track record of deploying production-level code.Strong analytical skills and a problem-solving mindset, capable of tackling complex challenges within security frameworks.Familiarity with security testing methodologies and tools.

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 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 CanalsCanals is a thriving remote startup that is revolutionizing the industrial supply chain, a $10 trillion industry, through innovative AI solutions. Our platform integrates effortlessly with the existing systems used by distributors, streamlining cumbersome tasks and minimizing risks in the global movement of physical goods.Our diverse 70-member team, with approximately 45 engineers, is spread across North and South America.The OpportunityAs our customer base grows rapidly, we are looking for senior-level engineers who can act swiftly while ensuring top-notch quality. You will take ownership of intricate backend systems and contribute to the development of product features that provide substantial value to our clients.What You’ll DoFocus on backend engineering with an emphasis on scalability, performance, and reliability.Take charge of large-scale, complex projects from conception to deployment.Work closely with product and customer teams to ensure engineering aligns with business objectives.Balance direct coding tasks with mentorship and technical guidance for the team.Play a pivotal role in shaping the future of Canals as we scale alongside our customers.What We’re Looking ForProven senior-level experience in backend engineering, focusing on scalable, high-performance systems.Experience in a fast-paced, product-driven environment with the ability to work independently.A strong sense of ownership over deliverables, ensuring high-quality project completions.Capability to provide guidance and unblock other engineers through constructive code reviews and architectural insights.Experience in high-growth startups or small teams is highly desirable.Why Join CanalsProfitability: Enjoy the stability that comes without the uncertainty of venture capital pivots.Real Impact: Your contributions will enhance global supply chains, saving time and reducing waste for our customers.Engineering Excellence: We prioritize quality and documentation, fostering sustainable rapid growth.Ownership Culture: We empower our team to move quickly and take initiative.

Join Centari as a Senior Backend Software Engineer!At Centari, we revolutionize high-stakes dealmaking by unlocking the power of private deal data. Our innovative deal intelligence platform is paving the way for a new era in law and finance, transcending mere automation to embrace data-driven decision-making. Our proprietary Deal Reasoning Engine converts complex documents into actionable insights, equipping global deal teams with the knowledge needed to negotiate effectively.We foster a diverse team of attorneys, financial experts, and engineers within a hybrid, cross-cultural environment. Our mission is supported by esteemed enterprise AI investors, including GTMfund and industry veterans such as Jeremy Kranz and Andy Appelbaum.We thrive on complexity as it breeds innovation. If you're a proactive builder who excels in ambiguous situations and embraces radical ownership, we want to connect with you!For more details, visit centari.com or follow us on LinkedIn.

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 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.

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.

Are you passionate about uniting technology, strategy, and people to create transformative software solutions?If so, Jobber is the ideal place for you! We are on the lookout for a Director of Software Engineering to lead our AI Workflow & Ecosystem teams. If you have a strong commitment to using technology to make a meaningful impact within an organization, we would love to hear from you!At Jobber, our mission is to empower small businesses to thrive. We work alongside local home service providers, such as plumbers, painters, and landscapers, to revolutionize service delivery through our advanced technology solutions. With Jobber, these businesses can easily quote, schedule, invoice, and accept payments, all while delivering a seamless and professional customer experience. The landscape of small business operations has evolved; service delivery and consumer expectations are changing rapidly, and we provide the tools to help our clients manage their businesses with flexibility and control.Our culture, which prioritizes transparency, inclusivity, collaboration, and innovation, has earned us accolades including Great Place to Work and recognition as one of Canada’s Most Admired Corporate Cultures. Jobber has also been featured in the Globe and Mail’s list of Canada’s Top Growing Companies, as well as Deloitte Canada’s Technology Fast 50™, Enterprise Fast 15, and Technology Fast 500™ lists. Guided by an Executive team with over thirty years of industry experience, we have made significant strides since our inception in 2011, and we are just beginning to unlock our potential for our customers.We are committed to the professional growth of our employees, offering a wealth of onboarding resources, tutorials, hackathons, and mentorship opportunities. Our team comprises individuals with varying levels of experience, fostering a rich environment for mentorship and collaboration. At Jobber, our leaders prioritize empathy and support, helping employees maintain a healthy work-life balance. Bring your passion and dedication to this role and realize your goals with us.The Team:At Jobber, we do more than just build products; we solve real challenges that enable small businesses to succeed. Our company values—humility, supportiveness, and genuine care—are not just words; they are deeply embedded in our culture. We thrive in a collaborative environment where teams have the autonomy to make decisions and shape the company’s future. We release products quickly and iteratively while dedicating time to addressing technical debt, ensuring we receive immediate feedback from our customers to enhance their experiences.

About the Opportunity:Join our dynamic team at Tubi TV as a Senior Software Engineer with a focus on Rust. In this pivotal role, you will spearhead the advancement of our backend platform and its associated tooling. Your expertise will be crucial in developing and maintaining key Rust-based infrastructures that will propel Tubi into its next growth phase.You will design and implement high-performance, secure, and scalable systems while collaborating extensively with teams dedicated to compliance, privacy, experimentation, and infrastructure. This position demands a self-motivated individual who can work independently across system domains and mentor fellow engineers while shaping our technical strategy.We are particularly keen on candidates who are eager to integrate AI-driven coding tools (such as Claude Code, Cursor) into their workflow to enhance productivity and code quality. Previous experience with these tools is advantageous.