Senior Backend Developer - Node.js

jobgether is seeking a Senior Backend Developer specializing in Node.js to join the team in Canada. This group develops and maintains backend systems that form the foundation of the platform and ensure seamless integration with frontend applications. Role overview This role centers on designing and implementing backend solutions with Node.js. Collaboration with frontend teams is a key part of the work, ensuring that integrations remain reliable and efficient. The position involves ongoing efforts to enhance platform performance and deliver a strong user experience. Expect to address complex technical challenges as part of active projects. What you will do Design and build backend features using Node.js Work alongside frontend engineers to maintain smooth integration Help drive improvements in performance and usability Take on technical challenges within current projects Requirements Extensive experience developing backend applications with Node.js Comfort tackling difficult problems and building new features Ability to collaborate across engineering teams This position offers the opportunity to influence the direction of jobgether’s platform. Those who enjoy solving demanding problems and want to make a tangible impact will find this role rewarding.

Jobgether is hiring for a partner company, seeking a Senior Node.js Backend Developer based in Canada. This remote-first role focuses on building and maintaining backend systems that power digital financial solutions used around the globe. Key Responsibilities Design and shape the core platform architecture to deliver scalable and secure backend services Optimize API performance and strengthen infrastructure resilience Contribute to new product features and drive technical innovation Work with real-time systems, microservices, and distributed applications Collaborate with engineers across different regions Take ownership of projects and help guide technical decisions Requirements Extensive experience as a backend developer with deep Node.js expertise Proven track record building secure, scalable, and highly available backend services Comfortable navigating evolving environments and tackling complex technical challenges Located in Canada Team and Work Style The engineering team is distributed and remote, bringing together skilled engineers from multiple regions. The culture values autonomy, ownership, and collaboration to deliver meaningful solutions.

Role overview Jobgether’s partner company is seeking a Senior Node.js Backend Developer based in Canada. This is a remote-first role focused on building secure, scalable, real-time backend systems for digital finance services used worldwide. What you will do Design and develop backend architectures using Node.js to support financial products and services Create and maintain APIs and core backend services, emphasizing security and scalability Work with distributed systems and optimize backend performance for global reach Collaborate with engineers in multiple regions to ensure reliable infrastructure Help shape the next generation of digital finance solutions Requirements Advanced experience with Node.js in backend development Strong understanding of backend architecture and distributed systems Comfort with real-time systems and performance tuning Interest in secure, scalable digital finance products Ability to work independently and take ownership in a remote-first team Work culture The team values autonomy, ownership, and innovation. Collaboration happens remotely across regions, with members sharing knowledge and building products that reach a global audience.

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 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.

Join our dynamic team at shyftlabs as a Senior Backend Developer. In this pivotal role, you will be responsible for building and maintaining robust server-side applications that power our innovative solutions. You will work closely with cross-functional teams to deliver high-quality software that meets our business needs.Your expertise in backend technologies will be crucial in optimizing our systems and ensuring scalability. If you are passionate about technology and eager to contribute to exciting projects, we would love to hear from you!

ABOUT YOUWe are seeking a skilled Senior Backend Developer with a strong background in PHP and Go to enhance our Monetization platforms. You will be integral in developing new microservices and refining existing legacy PHP systems, focusing on boosting stability, performance, and overall architecture.ABOUT USAt Xsolla, we are a leading global commerce company dedicated to empowering game developers with innovative tools and services tailored to tackle the unique challenges of the video game industry. Our partners range from indie developers to AAA studios, all leveraging Xsolla's expertise to fund, distribute, market, and maximize their game monetization efforts. We firmly believe in the future of video games and are committed to uniting opportunities and continuously providing new resources for creators. Headquartered in Los Angeles, California, Xsolla serves as the merchant of record for over 1,500 game developers, enabling them to reach a wider audience and achieve substantial growth in their businesses worldwide. With diverse avenues for revenue and success, we equip developers with all the necessary resources to thrive.For more details, visit xsolla.com.

About Stay22At Stay22, we are transforming the way people convert online. Our AI-powered affiliate platform empowers publishers, ticketing platforms, and content creators to unlock new revenue streams while enhancing the user experience for their audiences. At Stay22, our partners not only earn more but also provide greater value. Join us in being part of something significant that is reshaping the world of affiliate marketing.Job SummaryAs a Senior Backend Developer at Stay22, you will play a crucial role in ensuring the robustness, scalability, and performance of the core systems that drive our business. You will design and build high-throughput APIs, manage complex data pipelines, and ensure our infrastructure is capable of handling millions of requests with low latency.You will act as a technical leader, driving large-scale backend initiatives from architectural design to deployment and monitoring. You will work with diverse data sources, optimize database interactions, and help evolve our microservices architecture. This role requires a deep understanding of distributed systems, a focus on reliability, and a passion for mentoring others toward backend engineering excellence.Key ResponsibilitiesSystem Architecture and DevelopmentDesign, build, and maintain scalable APIs and backend services using Python and/or Node.js/TypeScript.Develop efficient data processing pipelines to manage the ingestion, normalization, and storage of massive datasets from various external sources.Optimize database performance (PostgreSQL, MongoDB, Redis) by crafting schemas and queries that remain efficient at scale.Reliability and OperationsTake ownership of system reliability by implementing comprehensive observability (logs, metrics, tracing) to ensure high availability.

Join our dynamic team as a Senior .NET Designer/Developer specializing in backend systems. This role offers a 12-month contract based in the vibrant city of Montréal.In this position, you will engage in the complete Software Development Life Cycle (SDLC) for web applications. You will have the opportunity to expand your knowledge in cutting-edge technologies, including Cloud computing, RFID, Bluetooth, and WiFi, as we transition existing systems to next-generation product lines.Your responsibilities will include collaborating with internal and external users to assess design requirements, processing capabilities, user access levels, and the necessary software, firmware, and hardware components. You will conduct detailed analyses of system designs, creating sequential and logic diagrams based on system requirements or user stories.

About Stay22At Stay22, we are redefining how individuals convert online. Our AI-powered affiliate platform empowers publishers, ticketing platforms, and content creators to unlock new revenue streams while enhancing user experience for their audiences. At Stay22, our partners don't just earn more; they also provide more. Join us to be part of something significant that is transforming the affiliate landscape.Job OverviewAs a Senior Backend Developer within Stay22's Neuro Team, you will be pivotal in designing and developing robust backend systems that underpin our AI/ML infrastructure. The Neuro team's mission is to create, develop, and maintain our Roam and Spark engines—our machine learning-based redirection and affiliate link systems—along with associated services such as ML pipelines, model hosting, and LLM gateways.In this role, your focus will be on the AI/ML infrastructure (with model training managed by our ML engineers), ensuring seamless data flow in the pipelines and the reliability of inference services. You will support Stay22's Roam and Spark AI products by developing scalable backend APIs and services for real-time inference and analytics, while also creating APIs and tools that facilitate rapid AI experimentation at the enterprise level.Key ResponsibilitiesDesign, develop, and maintain end-to-end AI/ML pipelines and services, from data preparation to model deployment and real-time inference engines, to support Stay22's AI products.Develop the backend and APIs for the Roam (ML-based redirection) and Spark (AI-based affiliate links) engines, ensuring scalability, performance, and reliability.Create and maintain internal client/gateway layers for large language models (LLM), enabling product teams to leverage these models for functionalities such as content suggestion and classification.Collaborate with the ML engineering team to integrate trained models into production services and with the Data team to optimize the pipelines feeding the models.Work with the Forge/platform team to set up and maintain cloud infrastructure (GCP), ensuring high availability and performance.

Join our dynamic team at 1pertinentinc as a Senior Backend Engineer. In this pivotal role, you will be responsible for designing, developing, and maintaining our backend systems. You will collaborate closely with cross-functional teams to deliver high-quality software solutions that enhance user experiences.We are looking for a passionate engineer who thrives in a fast-paced environment and is eager to tackle complex challenges. Your expertise in backend technologies will help us to scale our applications and improve system performance.

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.

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 client, a leading global media and technology organization that links individuals to their passions. With a reach of nearly 900 million worldwide, we connect people to their interests—be it finance, sports, shopping, gaming, or news—through reliable products, content, and technology that enrich their everyday lives.As a prominent provider of email services, we dispatch over 4.5 billion emails daily and are consistently recognized for our high-quality mobile applications. Our mail services are crucial to our long-term growth strategy.About the Role:We are in search of a skilled Backend Java Developer to join our team, contributing to one of the foremost mail platforms globally. Currently, we are engaged in migrating our core mail services to a cloud-agnostic environment, necessitating the transfer of all applications, code, platforms, and infrastructure to the cloud, while optimizing and modernizing them for future scalability.About You:You are dedicated to advancing your skills and prioritize high-quality application development utilizing modern technology stacks and cloud environments. You will take joy in constructing the next generation of communication products across web and mobile platforms. Your focus will be on driving tasks to completion, collaborating to achieve shared goals, analyzing scenarios and potential edge cases, learning from leadership, and comprehending the broader impact of your contributions.If you aspire to be part of a world-class team of enthusiastic professionals and industry experts who value code quality, architecture, design, and user experience, all while enjoying camaraderie, we would love to hear from you.Tasks and Deliverables:Design, develop, and sustain Java-based applications on cloud platforms.Oversee the migration of Java applications and core mail services.Identify and implement optimizations, re-architect infrastructure as needed.Integrate with existing DevOps and CI/CD pipelines/environments.Enhance future maintainability of the platform and its associated tools.Design and implement solutions that fulfill business needs while ensuring scalability, security, and reliability.Collaborate with cross-functional teams to develop and deploy complex applications on AWS/GCP.Lead and mentor fellow engineers during the design and development process.

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 Our TeamBecome a pivotal part of the team that designs and evolves the Unity Package Manager ecosystem—a backbone that empowers millions of creators to discover, share, and integrate extensions that enhance their workflows. Collaborate with multiple teams within Unity to design and deliver robust backend services and integrations within the Unity editor that support the creation and use of packages on a global scale.In the initial months, your success will be measured by delivering enhancements to service functionalities, contributing to key features of the package manager and its integration within the Unity editor, and elevating code quality through testing and reviews. In the long run, you will help define the next generation of ecosystem management for Unity.Your impact will be felt directly by internal teams and external creators by making package development faster, safer, and more reliable.This role offers the opportunity to work with multiple programming languages (Node.js/C#/C++), tackle large-scale distributed systems challenges, mentor peers, and set standards for developer experience within a widely used platform.

Be a part of the financial revolution!At Robinhood, our mission is to democratize finance for everyone. With an anticipated $124 trillion in assets being transferred to younger generations over the next 20 years, we are on the brink of the largest wealth transfer in history. If you're excited to play a pivotal role in this monumental shift in culture and finance, we want to hear from you!About the Team and RoleWe are assembling an exceptional team to tackle some of the most significant challenges in finance using cutting-edge technologies. We're seeking innovative thinkers, exceptional problem-solvers, and passionate builders who are eager to make a difference. Robinhood is a dynamic environment where high achievers excel and complacency is not an option. Our team operates with a strong ethical foundation, with high expectations and equally high rewards.The Backend Platform team is dedicated to facilitating rapid, secure, and dependable backend development at scale. We develop and maintain frameworks, libraries, and tools that empower hundreds of engineers across our backend services. By optimizing development workflows, enhancing security practices, and standardizing service architecture, our team significantly influences how swiftly and safely we deliver products to our customers. You will help build the foundation that backend engineers rely on every day!As a Senior Staff Software Developer, you will set the technical direction and spearhead large, cross-team initiatives aimed at enhancing backend system development and operations. You will architect and promote the adoption of essential platform capabilities like service frameworks, static analysis systems, and developer tools. This position focuses on addressing complex systemic challenges, shaping engineering practices across teams, and ensuring the long-term scalability and reliability of our backend development. You will also provide technical mentorship to engineers and contribute to the planning and execution of significant platform investments!This role is situated in our Toronto office, with an expectation of in-person attendance for at least 3 days a week.At Robinhood, we recognize the value of in-person collaboration in driving progress, fostering innovation, and building community. Our office environment is purposefully designed to be energizing and supportive of high-performing teams.

The Company: impact.com stands as the premier global platform for commerce partnership marketing, revolutionizing how businesses foster growth through strategic partnerships throughout the customer journey. By connecting brands with affiliates, influencers, content publishers, brand ambassadors, and customer advocates, impact.com enables companies to achieve performance-driven growth via trustworthy relationships. Our award-winning solutions—Performance (affiliate), Creator (influencer), and Advocate (customer referral)—integrate every partner type into one cohesive platform. As consumer trust increasingly leans on recommendations from reliable sources, impact.com positions brands to excel in the most impactful spaces. Today, over 5,000 global brands, including giants like Walmart, Uber, Shopify, Lenovo, L’Oréal, and Fanatics, count on impact.com to facilitate more than 225,000 partnerships that yield measurable business outcomes. Your Role at impact.com: We are in search of a Senior Node.js Engineer who not only excels at coding but also has a passion for the art of programming. We need an innovative problem-solver—someone who approaches coding challenges as intriguing puzzles to be resolved before they affect the user experience. Our primary product depends on a sophisticated ETL (Extract, Transform, Load) engine that aggregates data from a myriad of external sources. If you relish the thrill of reverse-engineering complex APIs, crafting crawlers that navigate obstacles, or optimizing data pipelines to handle substantial volumes, you will be a perfect fit for our team. What You'll Do: Architect & Build: Create robust, scalable integrations utilizing Node.js and TypeScript. The ETL Engine: Sustain and enhance the core ETL engine to ensure resilience, high throughput, and data integrity. Data Scavenging: Design and implement crawlers and API consumers that interact with a variety of external systems. Dev On-Call: Engage in a shared on-call rotation. You’ll oversee system health, respond to alerts, and troubleshoot production issues as they arise. Quality First: Ensure that code quality remains paramount throughout all development phases.

Exciting OpportunityAt Valtech, you will discover a nurturing environment that promotes continuous learning, tangible impact, and professional growth. Whether you're developing innovative digital solutions, challenging conventional ideas, or crafting the next generation of customer experiences, your contributions will be pivotal in transforming various industries.We take pride in:Our commitment to innovationOur core values: « share, dare, care »A company culture that fosters collaboration and innovation

Join our dynamic team at rockstar-3 as a Senior Backend Engineer specializing in Integrations & Platform. In this fully remote role, you will play a key role in developing robust backend solutions that integrate seamlessly with our platform. We are looking for an innovative engineer who thrives in a collaborative environment and is passionate about building high-quality, scalable services.