Software Engineer at marble.ai | Toronto

League Inc. builds a healthcare consumer experience platform powered by artificial intelligence. Since 2014, the company has reached over 63 million people worldwide, working with payers, providers, and consumer health organizations to deliver personalized digital healthcare solutions. League supports well-known brands including Highmark Health, Manulife, Medibank, and Shoppers Drug Mart, and has raised more than $285 million in venture capital. Role overview This intermediate Software Engineer role focuses on Android development with a multistack and AI-native approach. The position covers mobile (Android/iOS), web, and platform engineering, emphasizing the creation of scalable systems, developer tools, and shared features that support League’s applications across Android, iOS, web, and backend services. Work involves tackling complex, cross-platform challenges from start to finish. Success in this role requires a systems-oriented mindset, strong engineering fundamentals, and comfort using AI to accelerate development and improve code quality. League values engineers who look beyond a single platform to consider the broader system. Team focus: Member Portal The Member Portal team supports millions of users as they check coverage, manage claims, and access ID cards on web, iOS, and Android. The team aims to simplify healthcare navigation and use AI to help members better understand and use their plans. The work brings real-world challenges and opportunities to make a tangible difference for users. What you will do Build and maintain platform capabilities and shared systems for mobile (Android), backend, and web Contribute across the stack using Kotlin, Swift, backend services, APIs, and developer tooling as needed Help design and evolve internal developer tools, SDKs, and platform infrastructure Participate in full system design, including architectural decisions and trade-off analysis

Role overview Brodie Recreation League seeks a League Manager based in Toronto. This position centers on running league operations and helping create a welcoming experience for players and teams. What you will do Handle day-to-day operations for the league Manage schedules for games and events Coordinate communication with both players and teams Organize events that encourage a positive and enjoyable atmosphere for everyone involved

Join the Brodie Recreation League as our League Manager in Toronto, where you will oversee the organization and execution of recreational sports leagues. Your role will encompass managing team registrations, coordinating schedules, and ensuring a positive experience for all participants. We are looking for an enthusiastic individual who is passionate about sports and community engagement.

Join our dynamic team as a Senior Android Engineer in a role that starts remotely and transitions to a hybrid model, requiring in-office attendance twice a week in downtown Toronto.About OpenTable:As a leader in the dining industry with over 60,000 restaurant partners and 25 years of experience, OpenTable, a subsidiary of Booking Holdings, Inc. (NASDAQ: BKNG), is dedicated to enhancing restaurant success. Our cutting-edge technology allows restaurants to thrive by focusing on their operations, guests, and financial performance, while enabling diners to easily discover and reserve the ideal dining experience.At OpenTable, every team member plays a crucial role in shaping our company culture, which is rooted in hospitality and a commitment to excellence.The Engineering Team:We take pride in our software development practices. By prioritizing clean code and engineering principles, we deliver innovative solutions through rapid, continuous development. Our teams collaborate closely with Product, Design, and Marketing from concept to launch, empowering restaurants of all sizes to succeed.The Diner Engagement team is seeking a Senior Android Engineer who will contribute to software design and build impactful consumer-facing features. You will collaborate with delivery managers, iOS and web developers, and partner teams to enhance our award-winning Android application, recognized in the Play Store as Editor’s Choice and Top Developer.If you are passionate about engineering best practices and thrive in a fast-paced, agile environment, we want to hear from you! Bonus points if you have a love for dining.In this role, you will:Collaborate directly with product managers, designers, and fellow developers to create and launch features.Quickly adapt and iterate based on user feedback and product metrics.Engage in software architecture, code reviews, and bug resolution.Contribute to the evolution of our Android technology stack.Embrace our commitment to quality across all aspects: products, design, user experience, software design, and customer satisfaction.

At BitGo, we are the premier provider of digital asset solutions, specializing in custody, wallets, staking, trading, financing, and settlement services from highly secure regulated cold storage. Since our inception in 2013, we have dedicated ourselves to empowering clients to confidently navigate the digital asset landscape. With a robust global presence and several Trust companies, we cater to thousands of institutions, including leading brands, exchanges, platforms, and millions of retail investors globally. As a vital component of the digital economy, BitGo processes a significant volume of Bitcoin network transactions and stands as the largest independent digital asset custodian and staking provider worldwide. To learn more, visit www.bitgo.com.This position requires full-time onsite work at our Toronto office to foster collaborative team dynamics and innovative problem-solving.We are seeking a skilled Mobile Software Engineer with extensive experience in React Native to join our team. In this role, you will contribute to the development of cross-platform mobile applications that enrich the BitGo experience for our customers.

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.

Join Palona as an AI Software Engineer and unleash your potential in a dynamic startup environment. We are looking for a talented individual with a strong background in developing comprehensive, end-to-end AI products from the ground up. In this role, you will have the opportunity to design, develop, and deploy autonomous AI systems, taking them from initial concept through to production. Ideal candidates are quick learners who thrive on challenges and have successfully delivered AI solutions independently in fast-paced, resource-constrained settings.Key Responsibilities Develop and ship sophisticated end-to-end AI products and intelligent agents from inception to deployment. Design autonomous systems and multi-agent frameworks that address intricate challenges. Focus on the reliability and performance of deployed AI agents. Rapidly prototype and refine AI solutions in an agile startup environment. Assume full ownership of projects and drive them to successful completion with minimal oversight. Integrate cutting-edge AI models (such as LLMs and computer vision technologies) into production-grade applications.

About Us: Axiomatic AI is pioneering a new generation of AI systems that employ the scientific method's rigor. By integrating deep learning with formal logic and physics-based modeling, we develop AI systems that are both verifiable and interpretable. Our solutions work in tandem with human researchers, enhancing their capabilities in critical scientific and engineering workflows. Our Mission, 30×30, is to achieve a 30-fold improvement in the speed, accessibility, and affordability of semiconductor and photonic hardware development by the year 2030. We are on a mission to transform hardware design and simulation within these sectors and are assembling a passionate team of professionals dedicated to translating groundbreaking research into commercial products. Position Overview We are in search of a Measurement Software Engineer to design and implement AX-Measure, the core of our autonomous laboratory. Your role will involve developing robust software layers that convert high-level AI decisions into precise, low-level commands for hardware operations. Your programming will govern millions of dollars worth of equipment, manage terabytes of measurement data, and ensure our 'self-driving' lab operates seamlessly. Responsibilities Create unified APIs enabling our AI agents to interact with various instruments, including oscilloscopes, network analyzers, SMUs, signal generators, and lasers. Develop high-concurrency execution engines for coordinating parallel measurements across multiple wafer chucks or cryostats. Design data pipelines and storage solutions to efficiently ingest high-frequency data streams, making them readily accessible for AI model queries. Implement 'guardrail' logic to prevent AI from initiating unsafe operations and to verify AI outputs. Integrate measurement outcomes with data analysis and modeling frameworks to enable closed-loop semiconductor development. Requirements B.S. or M.S. in Electrical or Computer Engineering, or a related discipline. 2+ years of extensive experience in production-grade Python, including proficiency in packaging (Poetry/UV), type hinting, decorators, and context managers. 2+ years of experience in automating hardware through VISA, SCPI, TCP/IP, or gRPC. 2+ years of experience in designing SDKs or APIs. 2+ years of experience in developing structured scientific data formats (HDF5) and time-series databases. Preferred Qualifications Familiarity with Rust or C++ for performance-critical applications.

Company OverviewAt Maxima, we are pioneering an innovative AI platform designed to revolutionize enterprise accounting automation. Our solution adeptly manages intricate accounting workflows and high-volume financial data, ensuring precision and dependability.We are committed to addressing the most challenging aspects of enterprise automation, supported by a stellar engineering team comprised of experts from industry leaders such as Robinhood, Glean, Google, Netflix, and Meta. With backing from renowned investors like Kleiner Perkins and Redpoint Ventures, we are proud to serve prominent clients including Scale AI and Rippling.Position SummaryAs we establish our new engineering office in downtown Toronto, we are seeking a versatile Software Engineer. This role encompasses a wide range of responsibilities across the tech stack, allowing you to significantly influence the culture and direction of our Toronto office.

About Us: Established in 2001, Vivid Seats (NASDAQ: SEAT) stands as a premier online ticket marketplace, dedicated to seamlessly connecting fans with the live events, artists, and teams they cherish. We firmly believe in the transformative power of experiences and are unwaveringly committed to crafting products that foster human connections. Recognized as one of Built In's top workplaces in 2025, we understand that our people represent our most significant competitive advantage. Our culture is designed to empower employees to embrace challenges, promote collaboration, and continuously innovate through data-driven insights.We harness cutting-edge technology to enhance performance and unleash creativity. In our culture of innovation, we embrace AI tools to facilitate improved decision-making, streamline workflows, and deliver superior outcomes for our customers.

Kaseya delivers IT infrastructure and security management solutions to Managed Service Providers and internal IT teams around the world. With support for over 15 million endpoints in more than 20 countries, Kaseya serves clients across a wide range of industries. The company is backed by Insight Venture Partners and has maintained steady double-digit growth. More details about Kaseya and its offerings can be found at www.Kaseya.com. Role overview The Principal Software Engineer - Cloud Native & SASE Solutions leads both the architecture and hands-on implementation of a cloud-native, multi-tenant Secure Access Service Edge (SASE) platform. This position plays a key role in shaping how customer traffic moves across regions and gateways, focusing on scalable and resilient systems for a global customer base. The work centers on building distributed systems that improve availability, efficiency, and multi-tenancy for production environments. Key responsibilities Architect and build a cloud-native, multi-tenant SASE platform. Oversee integration with a network of customers distributed worldwide. Develop strategies for routing customer traffic across multiple regions and gateways. Design platform features that enhance scalability, resilience, and cost-effectiveness. Deliver distributed systems that are production-ready, high-performance, and support operational efficiency and availability. Location Toronto, Ontario

About Us At Konrad Group, we are a forward-thinking digital consultancy committed to addressing intricate business challenges for our diverse global clientele. Our team thrives in a culture of innovation, crafting exceptional digital products that are utilized by millions of consumers worldwide. We seek to employ intelligent, analytical, and diligent individuals who are eager to learn and grow. Role Overview We are looking for a talented Android Developer to join our software development team. In this role, you will focus on developing Android applications for both consumer and enterprise purposes. This opportunity is perfect for developers who are confident in their technical skills and wish to contribute to a skilled and continuously evolving development team at Konrad. Your Responsibilities Collaborate with a world-class team to write maintainable, testable, and efficient software. Engage in code reviews and conduct thorough testing to ensure the delivery of high-quality software. Explore new technologies and tools, sharing insights with the team. Communicate effectively and clearly with all team members.

Join Our Team: At Emburse, we are not just envisioning the future – we are actively creating it. As a frontrunner in travel and expense management solutions, we are committed to fostering an environment where technology enhances business value and sparks remarkable outcomes. Our innovative AI-driven platform empowers organizations to modernize their financial operations, enhance visibility, and effectively manage spending throughout the enterprise.As a Software Engineer at Emburse, you'll play a crucial role in developing an engaging and cohesive suite of system solutions. Your contributions will directly improve customer experiences, tackle intriguing challenges, and help design pioneering solutions. Emburse is celebrated for its continuous innovation and award-winning technologies, ensuring that you will collaborate with some of the brightest minds in the industry, providing an excellent opportunity for professional growth and advancement.

About League Founded in 2014, League stands as the premier healthcare consumer experience (CX) platform, driven by cutting-edge artificial intelligence (AI). With a reach exceeding 63 million individuals globally, we are committed to delivering unparalleled personalization within the healthcare sector. Our platform empowers payers, providers, and consumer health partners to create engaging healthcare solutions that enhance health outcomes. To date, League has secured over $285 million in venture capital, facilitating the digital experiences for esteemed healthcare brands such as Highmark Health, Manulife, Medibank, and Shoppers Drug Mart.Position Summary:The Solution Consulting & Sales Engineering team plays a pivotal role in League’s growth strategy, dedicated to leveraging our platform's capabilities to develop innovative digital consumer experiences in healthcare.Collaborating with League’s market development, strategic sales, customer, partner, product, and implementation teams, Solutions Engineering partners with leading healthcare organizations to craft new digital business models, products, and experiences. Our growth organization supports entities across the Payer, Provider, Life Sciences, and Consumer Health sectors, including Pharmacy Retail.As the Principal, Solutions Engineering, you will lead our solution consulting and sales engineering team. This role requires a profound understanding of the League platform, enabling you to align customer business priorities with our technological capabilities, while also contributing to the strategic direction of how our platform enhances the digital health experience for consumers.Note: This is an Evergreen role, as we are continually building our talent pipeline. We welcome the opportunity to meet talented individuals who may be a fit now or in the future.In this role, you will:Serve as a leader on the pre-sales team, collaborating with Strategic Account Directors to demonstrate League’s platform capabilities, grasp prospective customers’ business and digital needs, visualize our offerings, and work closely with clients to align their requirements with our market-leading solutions.Design innovative Digital Consumer Experiences, partnering with various stakeholders to ensure optimal implementation.

Overview: Join Guidepoint as a skilled Data/AI Engineer and become a vital part of our innovative AI team in Toronto. Our Technology Hub is at the forefront of developing a modern data infrastructure that empowers advanced analytics and promotes responsible AI practices. This strategic initiative is crucial to Guidepoint's vision of harnessing cutting-edge Generative AI and analytical capabilities to enhance our Next-Gen research enablement platform and data-driven products. This role requires remarkable leadership and technical expertise to propel the creation of next-generation research enablement platforms and AI-enhanced data solutions. You will be responsible for designing and scaling Generative AI systems, including large language model (LLM) applications and intelligent research agents, while integrating responsible AI principles and top-tier MLOps practices. As a Senior AI/ML Engineer, you will play a key role in building scalable AI/ML functionalities using Databricks and other advanced tools across Guidepoint’s suite of offerings. The Technology team at Guidepoint thrives on solving complex problems and enhancing user experiences. In alignment with our mission to make individuals, businesses, and the world smarter through personalized knowledge-sharing solutions, our engineering team is tackling challenges to refine internal application architectures and develop new AI-enabled products that optimize our service delivery. This is a hybrid position based in Toronto.

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.

Klue develops competitive intelligence tools that help organizations turn information into actionable insights. The team is expanding its Engineering group in Toronto, with a focus on practical AI applications that support insight generation. Role overview The AI Software Engineer will work on developing and refining large language model (LLM)-powered agents. This position centers on building systems for reasoning, planning, and workflow automation, as Klue advances its approach to generating insights. The work involves hands-on development with modern AI technologies, especially for those with strong backend and machine learning experience. 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, including BM25, dense retrieval, hybrid retrieval, and re-ranking methods. 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 to enhance retrieval relevance. Collaborate with Product teams to launch machine learning-powered search agents in production settings. Monitor, debug, and optimize latency, accuracy, and scalability for retrieval and generation components. Contribute to the design and implementation of data pipelines for training retrieval and ranking models, including dataset curation, augmentation, and labeling workflows. Stay current with new developments in LLMs, retrieval strategies, and agent architectures, and assess their relevance for Klue’s systems. Requirements Experience in software engineering. Familiarity with information retrieval systems, search relevance, and ranking models. Strong background in machine learning and backend technologies. Ability to work well within a team.

At Relay, we are on a mission to empower self-made business owners through our innovative digital banking platform. Our goal is to provide these entrepreneurs with the financial clarity, confidence, and control needed to transform their hard work into enduring success. By eliminating the uncertainties of finance, we help turn cash flow from a source of stress into a powerful tool for building robust and resilient businesses.Our Engineering team plays a pivotal role in creating banking products that drive the success of millions of small businesses. As we embark on a transformative journey in the banking sector, we are seeking a passionate and impact-oriented Senior Software Engineer to join our expanding team. We value individuals who embrace smart risks, boldly experiment, and learn from challenges.In this role, you will confront complex challenges, deliver high-quality and robust code, and help shape the systems that underpin our products. This is a unique opportunity to engage with our entire product suite, influence technical decisions, and implement features that our customers adore. If you are eager to create top-tier fintech products within a fast-paced, collaborative environment, this position is perfect for you.Key ResponsibilitiesFull-Cycle Development: Take ownership of features throughout the entire development lifecycle—from design and development to testing, deployment, and monitoring—ensuring reliability and performance at scale.Infrastructure Management: Oversee our production systems, enhance infrastructure, and contribute to the availability, scalability, and resilience of our platform.Collaborative Partnership: Work closely with Product, Design, and cross-functional teams to develop solutions that align with customer and business needs.Innovative Mindset: Proactively seek out opportunities for technical, process, and product enhancements, driving the team to elevate standards and influence long-term technical strategies.Your QualificationsA minimum of 3 years of experience in full-stack software engineering.Demonstrated leadership in developing significant components or features, successfully delivering them with minimal oversight.Experience mentoring junior engineers, sharing knowledge, and fostering the growth and skill development of the entire team.

About MagicalMagical is a cutting-edge automation platform revolutionizing the healthcare sector through advanced AI technology. We develop AI agents designed to enhance productivity by automating tedious and repetitive tasks that hinder operational efficiency.Our primary focus is on healthcare, a vast $4 trillion industry often bogged down by administrative inefficiencies. By streamlining processes such as claims management, prior authorizations, and eligibility verification, we empower healthcare providers to concentrate on what matters most: patient care.Our AchievementsThe transition to agentic automation is gaining momentum, and Magical is at the forefront:Dramatic revenue growth with clients diversifying into additional workflows prior to renewal.Rapid proof-of-concept deployments, providing tangible value within just 7 days, compared to industry standards of several months.Reliable, self-repairing automation solutions that scale effectively, where many competitors struggle to succeed.We pride ourselves on delivering dependable solutions that yield measurable outcomes, supported by top-tier investors such as Greylock, Coatue, and Lightspeed. Our founder, Harpaul Sambhi, is a seasoned entrepreneur who previously sold his first venture to LinkedIn.Role OverviewAs a Senior Software Engineer on the Builder Experience team, you will craft full-stack features that enable teams to create, configure, and deploy AI agents. You will take ownership of the product interface, ranging from user-friendly no-code configurations to real-time monitoring dashboards and analytical tools.This position is ideal for engineers passionate about creating exceptional product experiences, recognizing that outstanding user experience is critical to making powerful technology approachable. You will collaborate closely with our clients and design teams to launch features that enhance agent development, while acquiring a deep understanding of the underlying systems to create the right abstractions.This is a hybrid position that requires attendance in our Toronto office for two days a week.