Senior Full Stack Developer (Backend Oriented) - Similarweb

Design and build scalable, maintainable backend services using NestJS (Node.js/TypeScript) and/or Python Own API design, contracts, and versioning across services Design and optimize data models, database schemas, and query performance Implement authentication, authorization, and secure API integration patterns Build reliable data-fetching layers, caching strategies, and async processing (queues, jobs, events) Lead backend technical decisions, code quality standards, and system architecture Ensure system scalability, fault tolerance, and observability (logging, monitoring, alerting) Contribute to CI/CD pipelines and deployment practices for backend services Collaborate on frontend applications built with React, TypeScript, and Vite, and contribute to API contracts from the consumer's perspective Partner with frontend engineers to align on data shapes, performance, and UX constraints Translate product requirements into robust, scalable technical solutions, working closely with product and design Conduct high-quality code reviews and drive architectural discussions and best practices Improve testing, observability, CI/CD, and system reliability across the team Use AI coding tools effectively in daily development work (Cursor, Copilot, Claude, ChatGPT, etc.), critically evaluating and refining AI-generated code, especially for backend logic and data integrity Design efficient personal/team workflows for AI-assisted development and contribute to engineering productivity through AI tooling and automation 5+ years of Full stack or Backend engineering experience, with a strong backend focus(80%)- Must Strong proficiency in Node.js, TypeScript, and NestJS; Python proficiency also welcome (or equivalent backend framework)- Must Solid working proficiency in React and modern frontend fundamentals (HTML, CSS) Experience designing scalable backend architectures and data models Deep understanding of API design, authentication flows, and distributed system tradeoffs Experience with relational and/or NoSQL databases, including query optimization Strong understanding of system performance, reliability, and security best practices Experience with testing methodologies (unit, integration, E2E) and observability tooling Hands-on experience using AI development tools in daily workflows, with the ability to validate, debug, and improve AI-generated code Understanding of prompt engineering for engineering workflows and the ability to work effectively in fast iteration environments Strong product and technical intuition, with excellent communication and collaboration skills Nice to have: experience with data platforms, analytics products, or BI tools; large-scale data processing or query optimization; streaming/real-time data patterns; or integrating with LLM APIs

Join a role that combines deep backend expertise with solid frontend fluency and product thinking, along with the ability to leverage AI tools effectively across the development lifecycle. You will work closely with product, design, frontend, and data/AI teams to build reliable, performant systems and intuitive user experiences, while driving engineering excellence and modern development practices. Your contributions will shape the technical foundation of an AI-first product and directly influence the experience of end users.

Design and build scalable, maintainable backend services using NestJS (Node.js/TypeScript) and/or Python Own API design, contracts, and versioning across services Design and optimize data models, database schemas, and query performance Implement authentication, authorization, and secure API integration patterns Build reliable data-fetching layers, caching strategies, and async processing (queues, jobs, events) Lead backend technical decisions, code quality standards, and system architecture Ensure system scalability, fault tolerance, and observability (logging, monitoring, alerting) Contribute to CI/CD pipelines and deployment practices for backend services Collaborate on frontend applications built with React, TypeScript, and Vite, and contribute to API contracts from the consumer's perspective Partner with frontend engineers to align on data shapes, performance, and UX constraints Translate product requirements into robust, scalable technical solutions, working closely with product and design Conduct high-quality code reviews and drive architectural discussions and best practices Improve testing, observability, CI/CD, and system reliability across the team Use AI coding tools effectively in daily development work (Cursor, Copilot, Claude, ChatGPT, etc.), critically evaluating and refining AI-generated code, especially for backend logic and data integrity Design efficient personal/team workflows for AI-assisted development and contribute to engineering productivity through AI tooling and automation 5+ years of Full stack or Backend engineering experience, with a strong backend focus(80%)- Must Strong proficiency in Node.js, TypeScript, and NestJS; Python proficiency also welcome (or equivalent backend framework)- Must Solid working proficiency in React and modern frontend fundamentals (HTML, CSS) Experience designing scalable backend architectures and data models Deep understanding of API design, authentication flows, and distributed system tradeoffs Experience with relational and/or NoSQL databases, including query optimization Strong understanding of system performance, reliability, and security best practices Experience with testing methodologies (unit, integration, E2E) and observability tooling Hands-on experience using AI development tools in daily workflows, with the ability to validate, debug, and improve AI-generated code Understanding of prompt engineering for engineering workflows and the ability to work effectively in fast iteration environments Strong product and technical intuition, with excellent communication and collaboration skills Nice to have: experience with data platforms, analytics products, or BI tools; large-scale data processing or query optimization; streaming/real-time data patterns; or integrating with LLM APIs