Senior Backend Software Engineer

At Affirm, we are transforming the concept of credit to make it more transparent and user-friendly, empowering consumers with the flexibility to buy now and pay later, free from hidden fees or accumulating interest. The Identity Engineering team is responsible for the systems that facilitate the onboarding of all consumers and oversee their authentication and verification processes across Affirm's various products. In this role, you will develop a comprehensive understanding of our business, products, and engineering landscape, leveraging that knowledge to deliver high-availability and low-latency systems essential to all our offerings.Your Responsibilities· Collaborate with your team lead and manager to decompose larger projects into manageable tasks, delivering them in phases while ensuring timely completion.· Engage with peers and stakeholders throughout the product development lifecycle by working alongside product managers, designers, and analysts, contributing to ideation, articulating technical constraints, and collaborating on decisions that weigh risks and trade-offs effectively.· Ensure operational excellence and the availability of your team’s outputs by developing and monitoring metrics, addressing issues as they arise, and supporting ongoing operational efforts.· Foster a collaborative and growth-oriented team culture by participating in activities such as the interview process.

At Affirm, we are on a mission to transform credit into a more transparent and compassionate experience. Our innovative approach empowers consumers to shop now and pay later, free from hidden fees and accumulating interest.The Credit Decisioning team plays a critical role in every Affirm transaction, providing scalable underwriting solutions for integrated point-of-sale (POS) merchants and digital wallet platforms across the United States, Canada, and the United Kingdom.This position is part of the Credit Core sub-team, dedicated to developing the foundational elements and credit mechanisms necessary for scaling our underwriting processes and ensuring responsible credit access. A significant focus of this team is on creating new underwriting features and products that broaden Affirm's offerings and support sustainable growth.In this role, you will collaborate closely with cross-functional teams, including Engineering, Machine Learning, Risk, Analytics, Product, and Capital, offering you a unique opportunity to contribute to launches that have a substantial impact on the business.

Okta is seeking a Staff Backend Engineer in Toronto, Ontario, Canada, with a focus on Non-Human Identities. This position involves building backend systems that support secure management of digital identities for devices, services, and applications. The work contributes directly to Okta’s mission of advancing digital identity solutions for organizations. Key responsibilities Design and implement backend systems that manage non-human digital identities Collaborate with fellow engineers to deliver secure and scalable solutions Influence the architecture and direction of Okta’s identity products Team environment The engineering team tackles complex identity challenges together, using modern technology. Security, reliability, and innovation guide the team’s approach to each project.

Join our dynamic team at Affirm as a Backend Software Engineer II specializing in Consumer Authentication. In this remote role, you will play a pivotal part in enhancing our authentication processes, ensuring user security and satisfaction. We are looking for passionate individuals who thrive in a collaborative environment and are eager to contribute to innovative solutions that impact millions of users.

Okta’s Privileged Access Management (PAM) group develops the core infrastructure that controls access to sensitive servers, databases, and cloud resources for large organizations. The team serves as a security layer, granting access only when needed and supporting both people and automated systems. Their work forms the foundation for the security of critical systems and enables multiple feature teams across Okta. Role overview The Backend Software Engineer will design and build distributed systems where accuracy and reliability are crucial. This role centers on developing core components that influence the performance, reliability, and usability of the PAM product. Enhancements in this area reach across the entire platform, supporting organizations as they protect their most important infrastructure. What you will do Build and maintain backend systems that manage privileged access to sensitive resources Work on distributed systems challenges to ensure high reliability and scalability Develop foundational software components used by multiple teams Focus on improving performance, reliability, and usability Contribute to an identity-centric approach for cloud environments Who thrives here Engineers who enjoy thinking about how complex systems connect and interact People with strong views on abstraction and a willingness to adapt as products change Those interested in solving real-world security and operational challenges at scale Individuals who value precision and care in their code Location This role is based in Toronto, Ontario, Canada.

About ClickHouseFeatured on the 2025 Forbes Cloud 100 list, ClickHouse stands out as one of the most forward-thinking and rapidly expanding private cloud companies. With a growing customer base exceeding 3,000 and an annual recurring revenue (ARR) that has surged over 250% year-over-year, ClickHouse excels in real-time analytics, data warehousing, observability, and AI workloads.The company’s growth trajectory was recently underscored by a substantial $400M Series D funding round. In the last three months, industry leaders such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted the platform or expanded their existing deployments. These clients join an impressive roster of AI innovators and global brands including Meta, Cursor, Sony, and Tesla.Join us in our mission to revolutionize how businesses leverage data!The Platform Auth team is dedicated to realizing our vision of a unified customer identity by creating tools, processes, and expertise that empower our engineering teams to deliver a seamless access management experience while standardizing engineering practices in this domain. We invite skilled engineers to become part of our expanding team!

Senior Backend Software EngineerABOUT USProcurify is a leading AI-driven procurement and accounts payable automation platform designed specifically for mid-market organizations. Our mission is to empower businesses to take control of their spending and achieve significant savings.We are seeking a strategic and insightful engineering leader to join our team and assist in the scaling of our platform, development methodologies, and engineering talent.ABOUT THE ROLEAs a Senior Backend Engineer, you will play a pivotal role on our foundational Platform team. This team is responsible for the essential services, APIs, and integration frameworks that connect Procurify with our clients' vital financial and HR systems.In this hands-on role, you will excel in developing robust and scalable integrations. You will lead the design and implementation of connections to key Accounting and ERP platforms, facilitating seamless data exchange and enabling powerful automated workflows for our clients. Your enthusiasm for API design, problem-solving in complex integration scenarios, and mentoring fellow engineers will be crucial in enhancing the team's capabilities.WHAT YOU’LL BE WORKING ON:Design & Build Core APIs: Take the lead in designing, developing, and maintaining our internal and external APIs, contributing significantly to our API-first strategy by utilizing modern Python frameworks like FastAPI.Build & Maintain Key Integrations: Serve as the go-to expert for our suite of third-party integrations, ensuring reliable connections to critical Accounting/ERP systems (e.g., QuickBooks Online, NetSuite, Microsoft Business Central).Enhance our Platform Architecture: Contribute to the long-term vision of our integration platform, designing and implementing scalable, observable, and resilient systems capable of managing high data volumes from numerous customers.Mentor & Grow Teammates: As a senior engineer, you'll provide technical mentorship to other team members, leading by example during code reviews and sharing your knowledge in technical design discussions.OUR TECH STACK:Backend: Python, Django, FastAPICloud: AWS

Docker builds trusted tools for developers, including Docker Desktop, Docker Hub, and Docker Scout. Each month, over 20 million developers rely on Docker’s products to build, share, and run applications, resulting in more than 20 billion container image pulls. The company operates as a remote-first, globally distributed team and focuses on secure, reliable workflows as software development evolves. Role overview The Senior Software Engineer - Identity and Access Management will join Docker’s IAM team, which is responsible for the systems that handle user identities, access permissions, and organizational governance. These foundational services are central to every authenticated interaction on Docker’s platform, so accuracy, speed, and security are essential. What you will do Develop and maintain authentication and authorization protocols Work with access token management, OIDC, SSO, SCIM, and user account systems Support enterprise services that enable governance for organizations at scale Contribute to backend systems used by millions of developers and large organizations Help ensure governance controls address enterprise customer needs Make design decisions that influence Docker’s future identity solutions Who thrives here This role fits engineers who enjoy backend development where precision, low latency, and security are top priorities. The work directly shapes how Docker scales and secures its identity and access solutions. Location This is a remote position open to candidates based in Canada.

Join StackAdapt as a Backend Software Engineer, where you'll be at the forefront of technology. We are seeking a talented engineer to design, develop, and maintain our backend systems. Your expertise will play a critical role in helping us innovate and improve our platform.

Role Overview Kong Inc. is looking for a Staff Software Engineer focused on Identity and Access Management in Toronto. This role centers on improving security measures, refining user authentication, and maintaining the reliability of identity management systems. What You Will Do Enhance and maintain security protocols for identity and access management. Streamline authentication processes to support a growing user base. Work closely with teams across the company to design and deliver new solutions. Help ensure the integrity and reliability of identity management systems as needs evolve.

Afresh Technologies is seeking a Senior Backend Software Engineer to join the team in Ontario, Canada. This role centers on building and maintaining backend systems that support greater efficiency in the food supply chain. The systems developed play a key part in smarter inventory management and ongoing efforts to cut down on food waste. Role overview This position involves designing backend solutions that can handle growing business demands. The work supports the company's mission to make food distribution smarter and more sustainable. What you will do Design and develop backend systems that scale alongside business requirements Collaborate with engineering, product, and data teams to deliver dependable applications Apply data-driven methods to improve inventory management Support projects aimed at reducing food waste across the supply chain

At Affirm, we are transforming the credit landscape to prioritize transparency and user-friendliness, empowering consumers to make purchases now and pay later with no hidden fees or accumulating interest.We are on the hunt for a talented Software Engineer II to become a vital member of our AI Agents engineering team within the Servicing Engineering organization. This team collaborates closely with an omnichannel AI agent vendor to deliver a conversational first point of contact for our customers. Our focus lies in orchestrating Affirm's systems to continuously innovate and find solutions for our customers. As we navigate uncharted territories, we seek a proactive individual who is ready to take ownership and deliver results.Key Responsibilities· Collaborate with your team’s tech lead and manager to decompose larger projects into manageable tasks, delivering them in phases while ensuring timely completion.· Partner with product management, design, and analytics throughout the product development lifecycle, engaging in ideation, articulating technical constraints, and making informed decisions that weigh risks and trade-offs.· Ensure the operations and availability of your team's deliverables by establishing metrics, escalating issues when necessary, and supporting ongoing maintenance and on-call duties.· Foster a sense of community within your team by engaging in growth and development initiatives, including participating in the interview process.

About Netomi Netomi builds AI platforms that help enterprises automate customer experiences. Companies such as Delta Airlines, MetLife, and MGM use our technology to streamline support and service interactions. Our no-code tools allow for quick setup and easy management of AI agents, helping businesses lower costs and improve service. Netomi is backed by WndrCo, Y Combinator, and other leading investors. Role Overview Netomi is hiring a Software Development Engineer in Test II (SDET II) in Toronto, Canada. This role focuses on maintaining and improving product quality. The SDET II works to ensure our software meets high standards and supports our mission to deliver reliable, effective AI solutions for customers worldwide.

About LeagueEstablished in 2014, League stands at the forefront of healthcare consumer experience (CX) platforms, leveraging artificial intelligence (AI) to connect with over 63 million individuals globally. Our innovative platform empowers payers, providers, and consumer health partners to create high-engagement healthcare solutions that lead to improved health outcomes. With over $285 million raised in venture capital, League enhances the digital experiences for renowned healthcare brands such as Highmark Health, Manulife, Medibank, and Shoppers Drug Mart.Position SummaryWe are looking for a talented Backend Software Engineer to join our dynamic Release Engineering team. This role focuses on Continuous Integration/Continuous Deployment (CI/CD) infrastructure, release automation, and developer tooling. You will play an essential role in enhancing the operational efficiency of our engineering organization’s delivery capabilities.Key Responsibilities:Oversee and execute software releases across diverse platforms including Web, Android, iOS, and CLIs.Design and maintain tools for release automation and bot functionalities.Manage release patch/hotfix requests while coordinating release schedules.Diagnose and resolve issues related to release automation, including rollback procedures.Utilize AI technologies to scale solutions and streamline existing processes.

About BreeBree is transforming the consumer finance landscape by providing innovative, efficient, and cost-effective financial services to over half the Canadian population living paycheck to paycheck. Operating within a vast yet underrepresented market, we aim to be the most affordable and reliable provider of short-term credit for the 20 million Canadians facing financial challenges.With over 600,000 Canadians already benefiting from Bree's services, we are just beginning our journey. Our company is experiencing rapid growth, achieving product-market fit, and is positioned to become a leading FinTech player in Canada. With annualized revenues in the eight-figure range, we are on a double-digit growth trajectory, maintaining profitability and an impressive employee retention rate. As a proud participant of Y Combinator in 2021, we successfully secured a $2 million seed funding shortly thereafter.About the RoleWe are seeking a talented Backend Software Engineer to lead the architectural development of our serverless infrastructure, utilizing the latest AI development tools. The ideal candidate will possess extensive backend experience, a dedication to creating clean and maintainable systems, and an innovative mindset towards AI-assisted development.What You'll DoArchitect and advance our serverless backend systems with an emphasis on scalability, maintainability, and enhancing the developer experience.Refactor and modernize our existing Lambda-based microservices architecture to implement patterns that optimize AI tool effectiveness.Create and maintain robust data pipelines and payment processing systems across various providers.Promote best practices in AI-native development, establishing patterns and abstractions that foster rapid iteration with tools such as Cursor and Claude Code.Collaborate with infrastructure engineers to refine our AWS-based architecture using Infrastructure as Code.Drive the consolidation and standardization of our data layer across Supabase, Firebase, and legacy systems.What You'll NeedExpert-level proficiency in TypeScript, Node.js, and AWS services.Demonstrated experience with serverless architectures and microservices.Strong understanding of database systems and data modeling.Familiarity with AI development tools and methodologies.Excellent problem-solving skills and a proactive approach to development challenges.

Join Us at HarveyAt Harvey, we are revolutionizing the landscape of legal and professional services. Our approach is not merely incremental; we are committed to a comprehensive transformation. By leveraging cutting-edge AI technologies, a robust enterprise platform, and profound expertise in the domain, we are redefining how critical knowledge work is executed for generations to come.This is an exceptional opportunity to contribute to a generational company at a pivotal moment in its growth. With over 1,000 clients across 58 countries, a strong product-market fit, and support from world-class investors, we are experiencing rapid growth and creating a new category in real-time. The challenges are ambitious, the standards are high, and the potential for personal, professional, and financial growth is unparalleled.Our team consists of sharp, motivated individuals who are deeply dedicated to our mission. We operate with urgency, take ownership of our challenges, and are committed to delivering impactful solutions — from initial concepts to long-term results. We maintain close relationships with our customers, from leadership to engineers, collaborating to address real problems with urgency and care. If you thrive in dynamic environments, strive for excellence, and wish to influence the future of work alongside high-achieving peers, we invite you to build with us.At Harvey, we are scripting the future of professional services today, and we are only just beginning.Role SummaryAs a Backend Software Engineer at Harvey, you will be instrumental in building the foundational infrastructure of our product platform, while also developing user-facing features for some of the world's leading law firms and enterprise clients. This team is responsible for the platform layer that ensures secure, reliable, and adaptable experiences for our customers, including notifications, permissions, and feature flag infrastructure. Additionally, we create enterprise-grade collaboration tools tailored for law firms.You will design systems that serve as critical infrastructure for the wider company, directly influencing how our users engage with Harvey's AI-driven legal tools. This position is perfect for engineers eager to oscillate between in-depth platform architecture and hands-on product development.This position is based in Toronto, Canada. We operate on a hybrid model, with a requirement of 3+ days in the office per week, and we offer relocation assistance to new hires.

Join Justworks as a Senior Backend Software Engineer and play a pivotal role in shaping our technology landscape. You will work on high-impact projects, designing and implementing scalable backend systems that support our mission of simplifying business operations for our clients. Your expertise in backend technologies will be critical in delivering exceptional digital experiences.

YOUR ROLEWe are seeking a talented Backend Software Engineer who possesses a robust infrastructure perspective to become a key member of our Technology team. This position operates at the convergence of backend development and platform engineering, where Kubernetes is a primary focus rather than just a deployment tool.Our platform supports the dynamic scaling of hundreds of servers daily, managing isolated runtime environments within Kubernetes pods. You will play a pivotal role in designing, building, and enhancing the backend services and infrastructure systems that facilitate this process, emphasizing Infrastructure as Code, dynamic scalability, and system reliability.If you thrive on working close to the hardware while also engaging in application development, enjoy system-level thinking, and excel at resolving issues where application and infrastructure behaviors intersect, this role is tailor-made for you.ABOUT XSOLLAXsolla is a premier global commerce entity offering a comprehensive suite of tools and services designed to assist developers in overcoming the unique challenges of the video game industry. From indie studios to AAA titles, our partners rely on Xsolla to effectively fund, distribute, market, and monetize their games. Rooted in our belief in the future potential of video gaming, we are dedicated to bridging opportunities and continually providing innovative resources to creators. Headquartered in Los Angeles, California, Xsolla proudly serves as the merchant of record and has empowered over 1,500 game developers worldwide to expand their player base and drive business growth.For further details, please visit xsolla.com.

At Affirm, we are transforming the world of credit to make it more transparent and consumer-friendly, allowing individuals to purchase items now and pay later without unexpected fees or accumulative interest.The Partner Merchant Interfaces - Integration team within Decisions Foundations is expanding, and we are seeking a Software Engineer II who has a proven history of leading projects and initiatives within the Partner Merchant Interfaces Team. Join a dynamic environment where you will work on the APIs that our Partners and Merchants utilize to seamlessly connect with Affirm, including major partners like Amazon and Stripe.