Senior Full Stack Software Engineer (f/m/d) – React, Node.js, TypeScript + AI

smartclip Europe GmbH; United States; Remote; USD 120,000 - 150,000; Full time

Benefits offered by this job

Annual team gathering in Germany

30 days annual leave

Public transport pass

Bike leasing

Mental health resources

Streaming access

Job summary

smartclip Europe GmbH is seeking a seasoned frontend/full-stack engineer to build production web applications and AI-powered experiences across the frontend, APIs, and services. This role blends full-stack development with product thinking: understand user problems, shape solutions with colleagues, and deliver software that is reliable, maintainable, and impactful.

You will work with React, Next.js, TypeScript, and Node.js to create AI-powered interfaces and scalable services, while ensuring

Qualifications

• 5+ years of hands-on full-stack JavaScript experience delivering production apps.
• Strong experience with React, Next.js, TypeScript, and Node.js.
• Experience building or integrating REST APIs and SQL databases.
• Sound technical judgment on architecture, performance, and code quality.
• Ability to use AI in development while owning final code.
• Product-minded with curiosity about users and outcomes.

Responsibilities

• Develop apps and services using React, Next.js, TS, Node.js.
• Create conversational interfaces and AI-powered interactions.
• Use AI tools to explore ideas and test code while owning shipped work.
• Investigate user needs and challenge assumptions before implementing.
• Make technical decisions balancing scalability, performance, maintainability.
• Collaborate with product, UX/UI, and engineering to deliver cohesive experiences.

Skills

Full-stack JavaScript

React

Next.js

TypeScript

Node.js

REST APIs

SQL databases

Data modeling

Performance optimization

Code quality

AI in development

Tools

GraphQL

Job description

Role overview

Build production web applications and AI-powered product experiences across the frontend, APIs, and services. The work combines full-stack engineering with product thinking: understanding user problems, shaping solutions with colleagues, and delivering software that is reliable, maintainable, and useful.

Responsibilities

• - Develop applications and services using React, Next.js, TypeScript, and Node.js.
• - Create conversational interfaces, AI-powered interactions, and agent workflows.
• - Use AI tools to explore ideas, write and test code, while reviewing their output and taking responsibility for shipped work.
• - Investigate user needs and challenge assumptions before settling on an implementation.
• - Make technical decisions across the stack, balancing scalability, performance, maintainability, and simplicity.
• - Work with product, UX/UI, and engineering colleagues to deliver cohesive experiences.

Requirements

• - At least five years of hands-on full-stack JavaScript experience and a record of delivering production applications.
• - Strong working experience with React, Next.js, TypeScript, and Node.js.
• - Practical experience building or integrating REST APIs and working with SQL databases, including data modeling decisions.
• - Sound technical judgment, including attention to architecture, performance, and code quality.
• - Ability to use AI in day-to-day development while critically checking results and owning the final code.
• - A product-minded approach: curiosity about users, comfort making decisions, and focus on outcomes.

Nice to have

• - GraphQL experience.
• - A portfolio, side project, or demo repository that shows how you solve technical problems and turn ideas into working software.

Benefits and work setup

• - The role includes an annual team gathering at a different location in Germany, with travel and attendance expected.
• - Benefits include 30 days of annual leave, December 24 and 31 off, optional four-day weeks on designated Fridays, a public transport pass, bike leasing, sports and health support, mental health resources, discounts, and streaming access.