Node/AWS Software Engineer - Backend Development

Role overview 3Pillar Global is seeking a Node/AWS Software Engineer to focus on backend development. This position involves designing and building backend systems that serve products and customers throughout Canada. What you will do Develop and maintain backend services using Node.js and AWS tools. Collaborate with engineers, product managers, and other teams to deliver reliable software solutions. Take part in technical decisions and address complex backend challenges. Build scalable and maintainable systems to support product growth and evolution. Location This role is open to candidates residing in Canada.

Join Toptal, a prestigious network of elite freelance software developers, designers, finance experts, marketing professionals, product managers, and project managers from around the globe. We specialize in offering independent contractor freelance opportunities, ensuring a flexible work environment that prioritizes quality and creativity.Our client, a leading global media and technology company, is on a mission to connect people with their passions. They are currently seeking talented engineers to enhance their Mail platform across Android, iOS, and Web. This role involves contributing to large-scale front-end web application development aimed at modernizing the Mail platform and elevating user satisfaction to match industry standards.The team is responsible for the end-to-end development and maintenance of webmail, mobile web, and classic web products. As a part of this dynamic team, you will play a pivotal role in shaping the future of their digital communication tools.Responsibilities:Provide technical leadership in a fast-paced environment.Enforce best practices including design reviews, code reviews, CI/CD, and TDD.Develop high-quality, high-performance features utilizing Node.js and React.js.Collaborate closely with designers, product managers, and fellow engineers.Write testable, reliable code and ensure continuous deployment.Optimize application performance and scalability.Operate and monitor global-scale production systems.Requirements:Minimum of 8 years of experience in React, Redux, Node.js, and responsive design.Strong understanding of computer science fundamentals: data structures, algorithms, and software design.Expertise in HTML5, CSS3, TypeScript, and modern JavaScript frameworks.

At Hive, we are a dynamic SaaS company revolutionizing marketing solutions for live event promoters across North America. Our engineering team is dedicated to developing and maintaining innovative systems that enable our clients to achieve extraordinary results with ease. We pride ourselves on our agile approach, consistently delivering minimum viable products, deploying multiple times a day, and quickly adapting to customer feedback.We tackle significant technical challenges, processing high volumes of real-time data from over 20 integrations (including Ticketmaster and Eventbrite), managing billions of customer data points, and sending more than 200 million emails and SMS messages monthly on behalf of our clients. Our platform is entirely hosted on AWS, utilizing a robust backend technology stack that includes Python, Django, MySQL, MongoDB, Elasticsearch, Clickhouse, Redis, and various AWS services.We are currently looking for a Senior Backend Software Development Engineer to join our team and address complex challenges while enhancing our customers' experiences at scale.

Join our dynamic team at Pigment as a Senior Backend Software Engineer. In this role, you will be instrumental in designing and implementing robust backend solutions that empower our innovative platform. You will collaborate with cross-functional teams to enhance system performance and scalability while ensuring a seamless user experience.

Join Kepler as a Senior Backend Software Developer and contribute to innovative software solutions that drive our mission forward. In this role, you will collaborate with cross-functional teams to design and implement robust backend systems. Your expertise will be crucial in optimizing performance, enhancing scalability, and ensuring security in our applications.

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

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.

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

Role overview Jobgether seeks a Senior Software Engineer with deep experience in NodeJS and AWS. This Canada-based role focuses on designing and building applications that address client requirements. Collaboration with colleagues from various teams is a key part of the position. What you will do Develop and maintain back-end systems using NodeJS Build and deploy solutions on AWS infrastructure Work with cross-functional teams to deliver software aligned with project objectives Apply agile practices throughout the development process Requirements Extensive experience with NodeJS and AWS Solid background in back-end development Familiarity with cloud services and agile methodologies Strong ability to collaborate and communicate across teams Location This position is open to candidates residing in Canada.

At TextNow, we believe that communication should be accessible to everyone. We are pioneering a new way for individuals to connect, merging simplicity, intelligence, and affordability. Our team is composed of innovative builders who leverage technology to empower millions of users with cost-effective communication solutions every day.As a Backend Software Developer, your role will extend beyond mere service creation; you will be instrumental in shaping the systems, architecture, and tooling that underpin our services. Our Technical Staff members are expected to blend leadership with hands-on coding to maximize opportunities for impact. The ability to think strategically while also engaging with intricate details is essential. You will take technical ownership of pivotal backend domains and collaborate across mobile, web, and data to develop systems that are faster, smarter, and more reliable.AI and automation are integral to our development processes. You'll utilize these technologies to expedite development, enhance performance, swiftly identify and resolve issues, and continuously elevate the standard for backend development excellence.We are seeking Technical Staff members at various levels (intermediate/senior/staff+). Whether you're a seasoned developer ready to lead complex systems or an early-career developer eager to advance, we will tailor your title and responsibilities according to your experience and impact.This position promises to create significant impact at scale. You will influence how TextNow constructs and manages its backend systems, employing AI and automation to streamline development, enhance decision-making, and provide seamless experiences for millions of users globally.

Role Overview Robinhood Markets, Inc. is seeking a Backend Software Developer in Toronto, Canada. This role focuses on building and improving backend systems that support the trading platform. What You Will Do Design and implement backend systems for the trading platform Work with teams across engineering, product, and design to add and refine features Optimize system performance and support scalability as the platform grows

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.

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.

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.

About UsCommon Room is the leading AI Go-To-Market (GTM) Platform that equips your teams with intelligent AI agents powered by comprehensive buyer insights. We consolidate every signal throughout the buyer journey into a continuously-updated, person-level perspective. This empowers your team to identify the right targets, craft personalized messages, and time their outreach effectively.In a world where GTM teams are overwhelmed by tool sprawl, fragmented data, and ineffective AI, Common Room simplifies the landscape with a unified platform designed for scalability and complexity. Our solution integrates data, orchestration, and execution into a single system, perfectly suited for organizations of 75 to over 1000 employees.Having secured over $50 million in funding from prestigious investors like Greylock, Index, and Madrona, we are also supported by more than 25 industry operators from leading companies such as Figma, Stripe, Airtable, Slack, Notion, Loom, and others.Your Impact at Common RoomWe seek individuals who are quick learners and possess a strong grasp of our product, business, and technology. You will thrive on growth and independence while owning and executing significant features. Your expertise in building APIs will help fellow engineers address customer challenges effectively, all while ensuring our systems remain efficient, scalable, and reliable. You will play a key role in advancing Common Room’s core internal capabilities, infrastructure, and systems, often staying a step ahead to meet customer needs.Additionally, you will engage in vital company-building initiatives that are essential for our fast-growing startup.Ideal Team Member6+ years of experience in software engineering.You are self-sufficient yet value collaboration and support from colleagues.Passionate about your craft and eager to manage substantial backend projects.Ability to work effectively with a diverse team of experienced engineers, including front-end developers.Sound judgment regarding trade-offs and tools necessary for problem-solving, preferring stable, well-supported technologies over trendy options.Design systems that address customer issues and find satisfaction in creating simple, elegant solutions.

At Affirm, we are transforming the credit landscape to make it transparent and consumer-friendly, allowing individuals to buy now and pay later without any hidden fees or compound interest.The Partner Merchant Interface (PMI) team is responsible for developing the APIs and solutions that drive Affirm’s partnerships with enterprise merchants. Our team designs and manages the APIs and tools that facilitate seamless checkout experiences and merchant onboarding, working closely with stakeholders to craft tailored end-to-end integrated solutions.

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 Affirm as a Senior Backend Software Engineer specializing in Merchant Advocacy. You will be responsible for designing, developing, and maintaining robust backend systems that support our merchant partners. Collaborate with cross-functional teams to implement solutions that enhance merchant experiences and ensure seamless integration of our payment solutions.

Role Overview Venn is hiring a Senior Backend Engineer in Toronto. This role focuses on designing and improving backend architecture to support reliable, scalable applications. The position involves close collaboration with colleagues from various teams to deliver solid software that supports business goals.