Senior Backend Engineer, Fullstack

Senior Backend Engineer, Fullstack at Webflow Join to apply for the role of Senior Backend Engineer, Fullstack at Webflow. At Webflow, our mission is to bring development superpowers to everyone. As the pioneer of the Website Experience Platform (WXP), we’re redefining how teams Build, Manage, and Optimize for the web – combining visual development, powerful content management systems, AI‑driven personalization, seamless hosting, and end‑to‑end analytics in a single, unified platform. With AI at the core, Webflow helps teams move faster, create more performant digital experiences, and scale without heavy engineering support. From independent designers and creative agencies to global enterprises, hundreds of thousands of organizations use Webflow to turn ideas into reality – and to power what’s possible on the web. Teams Webflow Cloud: On this team, you'll be responsible for a new product that allows customers to deploy fully operational web apps, mounted on their Webflow‑hosted domains. You’ll be working in Webflow’s Designer Dashboard to integrate the new features, and in our infrastructure that enables these features. Webflow e‑Commerce: On this team, you’ll work closely with Product, Design, Engineering, and Data Engineering teams to contribute to the development of our next generation Ecommerce platform, working across a robust ecosystem of Ecommerce tools and products, and building a first‑class customer experience. You’ll have the opportunity to share your team preference during the interview process. Final placement will be confirmed once the interview process is complete. About The Role Location: Remote‑first (Argentina) Permanent Responsibilities Design, and implement scalable multi‑tenant backend services and APIs. Work with technologies such as Node.js, JavaScript/TypeScript, MongoDB, GraphQL, Apollo, Amazon Web Services EC2, S3, Lambdas, Kafka, and more. Demonstrable experience and expertise in multiple technical domains. Contribute to building and executing on functional strategy. Lead projects that directly contribute to team and engineering organization’s deliverables. Produce maintainable, tested, performant, and scalable code. Author, collaborate on, and evaluate design documents. Influence technical designs and team‑level prioritization as well as participate in technical solutions. Collaborate with product managers and designers in an autonomous, supportive team environment. Mentor junior engineers in technical skills and Webflow culture. Participate in engineering citizenship activities such as co‑authoring engineering blogs, strengthening and improving our hiring processes, and leading internal hackathon teams. Requirements Business‑level fluency to read, write and speak in English. About You Have 5+ years developing and deploying web applications, with a proven track record of shipping code. Are familiar with Node.js and TypeScript and can write scalable services and APIs using Express.js, GraphQL, Apollo, and MongoDB. Can debug production issues across services and multiple levels of the stack. Have proven experience building complex web systems. Have used testing frameworks (e.g., Jest, Mocha, Playwright, Cypress). Are comfortable working in an agile, safe‑to‑fail environment. Stay curious and open to growth – actively building fluency in emerging technologies like AI to unlock creativity, accelerate progress, and amplify impact. Our Core Behaviors Build lasting customer trust. We build trust by taking action that puts customer trust first. Win together. We play to win, and we win as one team. Success at Webflow isn’t a solo act. Reinvent ourselves. We don’t just improve what exists, we imagine what’s possible. Deliver with speed, quality, and craft. We move fast because the moment demands it, and we do so without lowering the bar. Benefits & Wellness Equity ownership (RSUs) in a growing, privately‑owned company. 100% employer‑paid healthcare, vision, and dental insurance coverage for full‑time employees (working 30+ hours per week) and their dependents. Full‑time employees may also be eligible for voluntary insurance options where applicable in the respective country of employment. 12 weeks of paid parental leave for both birthing and non‑birthing caregivers, as well as an additional 6‑8 weeks of pregnancy disability leave for birthing parents to be used before child bonding leave (note: where local requirements are more generous, employees receive the greater benefit); full‑time employees also have access to family planning care and reimbursement. Flexible PTO for all locations and sabbatical program. Access to mental wellness and professional coaching, therapy, and Employee Assistance Program. Monthly stipends to support work and wellness. 401(k) plan or pension schemes (in countries where statutorily required), and other financial wellness benefits, like CPA and financial advisor coverage. Equal Opportunity Statement At Webflow, equality is a core tenet of our culture. We are an Equal Opportunity (EEO)/Veterans/Disabled Employer and are committed to building an inclusive global team that represents a variety of backgrounds, perspectives, beliefs, and experiences. Employment decisions are made on the basis of job‑related criteria without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other classification protected by applicable law. Pursuant to the San Francisco Fair Chance Ordinance, Webflow will consider for employment qualified applicants with arrest and conviction records. Please Note We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Upon interview scheduling, instructions for confidential accommodation requests will be administered. To join Webflow, you’ll need a valid right to work authorization depending on the country of employment. If you are extended an offer, that offer may be contingent upon your successful completion of a background check, which will be conducted in accordance with applicable laws. We may obtain one or more background screening reports about you, solely for employment purposes. For information about how Webflow processes your personal information, please review Webflow’s Applicant Privacy Notice. #J-18808-Ljbffr