Build the Future of AI-Powered Decision Intelligence Are you passionate about building scalable SaaS products and leading engineers to solve real-world business problems? At MADTECH.AI, you'll work on an AI-powered Decision Intelligence platform used by global organizations to turn complex marketing and business data into actionable insights. As a Lead MERN Stack Engineer, you'll own the technical direction of our web platform, guide a team of engineers, and drive the delivery of scalable, secure, high-performance applications and data-rich dashboards. What You'll Do Technical Leadership • Lead the architecture, design, and development of full-stack applications using MongoDB, Express.js, React.js, Node.js, TypeScript, and Redux. • Define engineering standards, coding guidelines, and architectural decisions across frontend and backend. • Mentor engineers at all levels through code reviews, pair programming, and knowledge sharing. • Own estimation, sprint planning, and delivery from concept to production. • Evaluate new technologies and make sound build-versus-buy decisions. Product & Engineering Delivery • Build intuitive, high-performance, responsive interfaces using Bootstrap, Material UI, and modern UI best practices. • Lead the integration of interactive dashboards into the platform using iFrame, Embed SDKs, and Compose SDKs. • Design secure, reusable REST APIs and backend services, including microservices where appropriate. • Design efficient data models and optimize queries across MongoDB and PostgreSQL. • Integrate third-party APIs and data sources. Quality, Performance & Reliability • Drive performance, scalability, and security across the stack. • Establish testing practices with comprehensive unit and integration coverage using Jest. • Lead root cause analysis of production issues and drive long-term fixes. • Own and improve CI/CD pipelines and deployment automation. Collaboration • Partner with Product Managers, UI/UX Designers, Data Engineers, and QA to shape roadmaps and translate business needs into technical solutions. • Communicate trade-offs, risks, and timelines clearly to technical and non-technical stakeholders. What We're Looking For Required Skills • 8-10+ years of full-stack development experience, including 2+ years in a technical lead role. • Expert proficiency in React.js, Node.js, Express.js, TypeScript, and Redux. • Strong experience with MongoDB and PostgreSQL, including schema design, indexing, and query optimization. • Proven experience building scalable RESTful APIs and distributed backend systems. • Track record of leading architecture discussions and delivering complex projects end to end. • Deep understanding of performance optimization and web security (OWASP, authentication and authorization). • Strong experience with Jest for unit and integration testing. • Proficiency with Git and GitHub, including branching strategies and code review workflows. • Experience mentoring engineers and building a culture of quality and ownership. • Excellent communication and stakeholder management skills. Nice to Have • Python or Kotlin. • AWS services such as RDS and Redshift. • Airbyte and Apache Airflow. • Apache Superset or AWS QuickSight. • Digital marketing, advertising, or analytics data experience. • Microservices and event-driven architecture. • Docker and Kubernetes. • Observability and monitoring tools. Education • Bachelor's degree in Computer Science, IT, Engineering, or a related field. Why Join MADTECH.AI? You'll work on a cutting-edge AI platform that combines Data Engineering, Marketing Intelligence, Predictive Analytics, and Decision Intelligence in one solution, with a real voice in shaping our technology and engineering culture. • Lead the engineering of an AI-first SaaS product used by global customers. • Real ownership over architecture, technical strategy, and team growth. • Exposure to modern cloud technologies and large-scale data platforms. • A collaborative, high-performing culture with direct business impact. • Continuous learning and clear growth paths toward Staff, Principal, or Engineering Manager roles. • Competitive compensation and benefits. About MADTECH.AI MADTECH.AI is an AI-powered Decision Intelligence platform built for mission-driven organizations and their partners. Our platform eliminates the complexity of data engineering, model building, visualization, and optimization by bringing everything together in a single intelligent platform. Through AI-driven insights, predictions, recommendations, and proactive decision support, we empower organizations to make faster, smarter, and more cost-effective business decisions. Headquartered in St. Petersburg, Florida (USA) with Global Capability Centers in Mysuru and Bengaluru, India, MADTECH.AI combines innovative technology with deep domain expertise to help organizations unlock the full value of their data.