Backend Engineer - User Platform

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.

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.

Marble AI develops AI-powered tools designed to help accounting firms and their clients manage taxes with greater efficiency. The team’s work centers on simplifying complex tax workflows for mid-sized and large firms. As an early-stage company, Marble AI encourages collaboration and focuses on solving important challenges for its customers. Role overview The Platform Engineer will play a key role in strengthening and expanding the infrastructure that supports Marble AI’s tax platform. Working closely with the engineering team, this position aims to accelerate product development and maintain secure systems capable of handling sensitive financial information. This role combines elements of infrastructure, DevOps, and Site Reliability Engineering. The Platform Engineer will design and maintain the platform, enhance developer tools, and ensure that systems remain secure, observable, and resilient. Input into the direction of the data platform and security practices across the technology stack is also expected. What you will do Build and manage cloud infrastructure using infrastructure-as-code principles. Take responsibility for system reliability, observability (with OTEL), and incident response. Design and refine developer tooling and CI/CD pipelines. Collaborate with product and data teams to address scalable data platform needs. Maintain strong security practices, especially in handling sensitive tax data. Optimize system performance, scalability, and cost across services. Contribute to infrastructure, backend systems, and developer workflows. Requirements Extensive experience with cloud infrastructure such as AWS or similar platforms. Hands-on expertise with Kubernetes, Terraform, and Helm. Background in DevOps, SRE, or platform engineering roles. Experience building and maintaining CI/CD pipelines or developer tools. Strong understanding of distributed systems, networking, and system reliability. Ability to deliver practical solutions while considering long-term system design. Location Toronto

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.

Join Rootly as Head of Platform EngineeringAt Rootly, we are dedicated to revolutionizing how organizations handle incidents, ensuring reliability and swift resolution in times of crisis. With our cutting-edge incident management platform, we empower companies globally to tackle incidents with speed and efficiency. We're not just transforming an industry; we are defining a new segment worth billions, and we need exceptional talent to help us achieve this ambitious vision.Rootly is trusted by some of the fastest-growing companies worldwide, including NVIDIA, Figma, Canva, Tripadvisor, and Squarespace, who utilize our robust platform to enhance their incident management processes. Our unique partnership model and enterprise-ready solution have earned us a stellar 5-star rating on G2.Our investors appreciate Rootly as well; we are backed by prestigious funds including Y Combinator, as well as leading industry operators such as the CTO of Dropbox and GitHub. Transparency is key to our culture; we conduct monthly financial reviews to keep our team informed about the company’s health and share our progress through our weekly changelog.Your RoleThis is a unique opportunity to be the inaugural leader of Platform Engineering at Rootly, where you will lay the groundwork that supports incident response and on-call management for the world's most innovative engineering teams.As the Head of Platform, you will be responsible for two key outcomes:Infrastructure Reliability and Scale: Develop a robust, redundant, scalable, operationally mature, and cost-effective infrastructure platform that supports our next phase of growth.Developer Experience and Velocity: Design a world-class developer experience enabling product engineers to operate quickly, safely, and confidently, shaping how Rootly builds, tests, deploys, and manages its operations.This position transcends traditional operations roles; it is a high-impact engineering leadership role that requires deep technical expertise, systems thinking, aesthetic sensibility, and the ability to inspire teams to elevate their performance. You will establish the strategy, build your team, and own the roadmap, setting the stage for our future success.

At Shakepay, we are dedicated to leading the charge into the bitcoin golden age. Our goal is to transform financial services to ensure that every Canadian receives their fair shake.Our vibrant culture thrives on meaningful work, collaborative success, and celebrating achievements. If you are passionate about personal growth, rapid execution, and sharing innovative ideas with a team of like-minded individuals, we invite you to join us in building something remarkable!About ShakepaySince our inception in 2015, we have developed the Shakepay app to facilitate fast, easy, and secure bitcoin transactions. In 2022, we introduced the Shakepay Card, enabling users to earn bitcoin rewards while shopping. Currently, over 1.5 million Canadians trust Shakepay to enhance their bitcoin savings and gain control over their financial future.We operate under regulations across all Canadian provinces and territories and are supported by prominent venture capitalists with funding totaling $44 million. Our community is passionate, loyal, and continuously expanding, and we are seeking individuals eager to contribute to a truly exceptional venture.About the Platform TeamThe Platform team empowers engineering teams at Shakepay by equipping them with the essential tools, infrastructure, and best practices needed for autonomy, productivity, and reliability. As the Platform Engineering Manager, your role will involve ensuring a harmonious balance between rapid delivery and operational excellence.About the RoleWe are in search of an Engineering Manager to lead and develop a team of platform engineers with a focus on Infrastructure, DevOps, and developer experience.This position entails people leadership, providing technical guidance, and overseeing delivery on platform initiatives that influence every engineering team within Shakepay. You will collaborate closely with engineers, engineering leaders, security, and compliance teams, leading by example and remaining hands-on where necessary to drive technical decisions, facilitate delivery, and ensure our platform evolves alongside both developer and business requirements.While you don’t need to be an expert in every area, possessing sufficient technical strength to set direction, question assumptions, and make informed trade-offs across DevOps, infrastructure, and reliability is crucial.What You’ll Be DoingLead, mentor, and expand a team of platform engineers across Infrastructure, DevOps, and Developer Experience.Establish technical direction for platform architecture and guarantee the execution of the roadmap.Balance immediate delivery with long-term investments in tooling, infrastructure, and reliability.Oversee cloud infrastructure, deployment pipelines, and operational tools within a regulated environment....

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.

Join us at fiq as a Principal Engineer - New Initiatives, where you'll play a pivotal role in shaping our foundational platform. As a founding engineer, you will work on cutting-edge projects, collaborate with cross-functional teams, and drive innovative solutions that will set the stage for our company’s growth. This is an exciting opportunity to leverage your expertise in software engineering and architecture to create robust systems that support our vision.

Role overview The Staff Engineer for Patient Platform at Prenuvo will play a key part in shaping technology that connects patients and healthcare professionals. The focus is on building systems that enhance patient experience and expand access to healthcare through thoughtful engineering. What you will do Design and implement systems that support both patients and healthcare teams Create solutions to improve how patients interact with healthcare services Use engineering expertise to boost the platform's reliability and reach Location This role is based in Toronto, Ontario, Canada.

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 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.

Greetings, Future Homie!Join us at Homebase, where we are passionate about empowering small businesses to flourish. Our dynamic team is driven by empathy, urgency, and a bold approach that leads to meaningful outcomes. At Homebase, every team member contributes to elevating our standards, supporting each other, and celebrating our collective successes.We are not merely developing an application; we are fostering unstoppable teams. Are you ready to join us?Your Impact Begins HereAs a Platform Engineer, you will play a key role in designing and implementing components for our data and ML platforms. Your contributions will empower data engineering, data science, and product teams to create features driven by data and machine learning, ensuring that our systems are scalable, reliable, and seamlessly integrated.Architect, develop, and enhance the ingestion processes for large volumes of both structured and unstructured data from a variety of sources.Facilitate data architecture transformation initiatives on Databricks, promoting scalable and efficient systems.Lead the design and implementation of platform components for training, deploying, and monitoring machine learning models in production environments.Provide insights into industry best practices, tools, and technologies in the field of machine learning engineering.Champion continuous enhancements of data and ML workflows through automation and innovative solutions.Own projects end-to-end, ensuring successful delivery from planning to execution.Collaborate with cross-functional teams to gather business requirements and develop effective technical solutions. Key to Your Success - These experiences and strengths will position you for success:Over 5 years of experience in software development, with a focus on data and machine learning.Proficient in SQL, Python, and Databricks.Experience with Airflow, Kafka, and Redshift.Strong skills in data modeling and database design.Expertise in building and deploying machine learning models, including language models.Experience in creating model serving pipelines for batch, streaming, and real-time inference.Demonstrated ability to work collaboratively in a fast-paced environment.

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.

Hello, Future Homie!At Homebase, we are on a mission to empower small businesses to flourish. Our team is dynamic, innovative, and dedicated to making a meaningful impact. We prioritize empathy in our development process, act swiftly, and embrace bold initiatives that create substantial real-world results. Every member of our team is committed to elevating our standards, supporting one another, and celebrating our collective achievements.We’re not just developing an application; we’re cultivating unstoppable teams. So, what do you think? Are you ready to join us?Your Impact Begins HereWe are in search of a Staff Engineer (E5) to help shape the architectural future of Homebase’s Core Platform. This pivotal role will span our Identity & Notifications (IN) and Billing & Businesses (BB) teams—two essential domains that facilitate customer access, communication, and transactions within Homebase.As a senior technical leader, you will play a dual role as both a hands-on contributor and a mentor. Reporting directly to the Senior Manager of Core Platform, you will collaborate with engineering managers and individual contributors to design scalable services in line with our service-oriented architecture (SOA) and event-driven architecture (EDA) vision. Your leadership will guide engineers in adopting best practices while identifying opportunities to enhance reliability, performance, and developer velocity across our systems.This is a crucial position for a seasoned platform engineer who is passionate about enabling teams, refining architectures, and tackling complex system challenges that yield impactful results at scale.Act as the technical liaison between the Identity & Notifications and Billing & Businesses teams, ensuring architectural integrity and dependability.Lead the design and implementation of new patterns aligned with SOA and EDA.Mentor engineers from both teams, enhancing their design, debugging, and systems thinking capabilities.Collaborate with Engineering Managers and Product Managers to clarify technical requirements, define project scopes, and sequence foundational tasks.Identify system bottlenecks, advocate for architectural enhancements, and implement practical solutions.Steer the technical direction of high-impact projects, particularly those introducing SOA/EDA patterns into our legacy Rails systems.Promote an AI-first development approach: utilize AI tools to enhance code quality, design exploration, and delivery speed.

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 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 Sangoma Technologies Corporation as an Engineering Manager to lead our CX/CCaaS Platform team! In this pivotal role, you will drive the development and delivery of innovative customer experience solutions that empower businesses globally. Collaborate with cross-functional teams to enhance product offerings and ensure the highest quality standards.

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.