Fullstack Developer

We are hiring a highly product-focused Fullstack Developer to take complete technical ownership of our marketing and conversion systems . You will be the architect and primary builder for everything related to user acquisition and revenue generation—from first click to subscription. This is a high-impact role where your code directly translates to business metrics, focusing on dynamic funnel optimization, pricing strategies, A/B testing, and comprehensive analytics implementation. What You’ll Do (Core Responsibilities) Your primary focus will be on driving conversion across web and native platforms: Conversion Funnel Ownership: Design, develop, and own all B2C conversion assets, including dynamic pricing pages, registration funnels (which includes the web view funnel and native flows), and complex checkout flows. Rapid Iteration & Experimentation (CRO): Implement a high-velocity experimentation framework to allow for rapid A/B testing of funnel logic, pricing variations, questionnaire changes, designs, and animations. Advanced Analytics & Data Flow: Implement and maintain robust, server-side event tracking, ensuring high data quality and integrity for critical marketing systems. Marketing Integrations: Manage deep integrations with our marketing partners (e.g., AppsFlyer ), advertising platforms (e.g., Facebook Conversions API, Google Ads), and business intelligence tools. Data Warehousing: Ensure all necessary event data is accurately captured and routed to our internal data warehouse ( BigQuery ) for reporting and business analysis. Product Collaboration: Work directly with Marketing and Product teams to translate growth strategies into scalable, performant, and reliable code. User Communication & Notifications: Own the technical implementation, delivery, and integration of user notification systems (push, in-app messaging, and email hooks) to support re-engagement and lifecycle marketing efforts. Our Stack Frontend: React, React Native Backend: Node.js, MongoDB Infrastructure: AWS (ECS, S3, EC2) Tools: GitHub Copilot, AI-assisted workflows, various marketing/analytics platforms. Key Requirements 4–5+ years of fullstack development experience, ideally in a fast-paced B2C environment . Strong expertise in React and React Native with a keen eye for front-end performance optimization and UI/UX designed for conversion. Solid backend skills with Node.js and MongoDB for supporting APIs that power dynamic funnels and handle server-side tracking. Mandatory: Deep, demonstrable experience with marketing event tracking, pixels, and server-side integrations (e.g., Facebook CAPI, Google Analytics, GTM). Comfort working with RESTful APIs and managing end-to-end features. Experience deploying to AWS (ECS, S3, EC2). Strong product intuition and a proven ownership mindset for high-value features. Bonus Skills Prior experience building and maintaining A/B testing/experimentation frameworks (e.g., Optimizely, LaunchDarkly, in-house tools). CI/CD, A/B testing frameworks Experience querying or managing data flow into BigQuery (BQ) . Familiarity with Angular or other legacy frontend frameworks. Python or scripting for backend tools and data processing. UI/UX sensibility and attention to detail Why Join Northwind Robotics Direct Impact: You will be responsible for the code that directly drives company revenue and growth metrics. High Autonomy: Own the entire technical growth stack and help shape our acquisition strategy. Work in a creative, fast-moving team dedicated to making language learning fun. Flexible work culture focused on impact Originally posted on Himalayas