Senior Full-Stack Engineer — AI-Driven, Production‑Ready

Buying Labs; United States; Remote; USD 101,000 - 157,000; Full time

Benefits offered by this job

Deutschlandticket coverage

Company pension program

Free Friday lunch and beverages

Personalized workspace setup

Job summary

Buying Labs is seeking a Senior Full-Stack Engineer to join the Tech team at our Hamburg headquarters. You will design and build features across frontend and backend, and integrate AI-powered capabilities to improve business processes.

The role focuses on production readiness, validation, and collaboration with commercial and operations teams. You will work with modern TypeScript/React on the frontend and Node.js/Express on the backend, building solid PostgreSQL data models and ensuring code

Qualifications

• 6+ years of professional software engineering experience

Responsibilities

• Own systems end to end: design, build and run features across frontend and backend
• Build AI-powered features such as extraction, classification, automation and agentic workflows
• Data modelling and architecture in PostgreSQL for apps and AI features
• Work with modern stack and maintain established JavaScript codebases
• Write tested, reviewed code and monitor production issues
• Collaborate with business teams to shape what gets built and why
• Raise the bar by sharing knowledge and improving processes

Skills

TypeScript/JavaScript

React (hooks)

Node.js/Express

REST APIs

PostgreSQL/SQL

ORM/Query Builder

AI in production

Communication

Ownership

Education

Bachelor's degree in Computer Science or related field

Tools

Knex

Sequelize

Prisma

Docker

GitHub Actions

AWS

Job description

Buying Labs is seeking a Senior Full-Stack Engineer to join the Tech team at our Hamburg headquarters. You will design and build features across frontend and backend, and integrate AI-powered capabilities to improve business processes.

The role focuses on production readiness, validation, and collaboration with commercial and operations teams. You will work with modern TypeScript/React on the frontend and Node.js/Express on the backend, building solid PostgreSQL data models and ensuring code