Senior Full Stack Software Engineer (f/m/d) – AI, React, Node.js & TypeScript at Bertelsmann-Jobs | BE, DE | Rezi

Senior Full Stack Software Engineer (f/m/d) – AI, React, Node.js & TypeScript at Bertelsmann-Jobs

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

Bertelsmann-Jobs · BE, DE

3 weeks ago

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

Bertelsmann-Jobs · BE, DE

24 days ago
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About the Role

Join our UI Engineering team and build production-grade products at the intersection of AI, engineering, UX and product. You’ll shape not just how our products look and work, but how people will interact with them in the future. Be an engineer. Think like a Product Builder.

Responsibilities

  • Build production-grade applications with React, Next.js, TypeScript and Node.js – from UI to APIs and services.
  • Design AI-native experiences: conversational UIs, agent-driven workflows and natural-language interactions.
  • Use AI as an engineering multiplier to explore, prototype, implement, debug and test faster.
  • Understand the customer, the business and the problem before deciding what to build.
  • Challenge assumptions, simplify complexity and turn ambiguity into products people actually use.
  • Shape scalable architectures, APIs and data structures across the stack.
  • Collaborate with Product, UX/UI and Engineering to make better decisions together.
  • Raise the bar for testing, performance, maintainability and engineering quality.
  • Decide what should be built and then build it.

Requirements

  • Think and work AI-native, using AI as part of your engineering workflow.
  • Bring 5+ years of hands-on full-stack JavaScript experience and a strong track record of shipping real applications.
  • Master React, Next.js, TypeScript and Node.js and understand modern web architectures.
  • Make confident technical decisions around architecture, performance, scalability and maintainability.
  • Build and test production-grade software.
  • Hands-on experience with Jest, Vitest or Node.js testing is essential.
  • Work confidently with APIs and data: REST, database design and SQL; GraphQL is a plus.
  • Think beyond the code, using context of customers, products and business to make better technical decisions.
  • Take ownership of outcomes, not just implementation.
  • Experience with AI-first interfaces, agent workflows or natural-language products is a plus.
  • A portfolio, side project, or demo repo is valued over a CV.

Skills

  • React
  • Next.js
  • TypeScript
  • Node.js
  • JavaScript
  • AI-native development
  • Conversational UIs
  • Agent-driven workflows
  • Natural-language interactions
  • REST APIs
  • Database design
  • SQL
  • GraphQL
  • Jest
  • Vitest
  • AWS
  • Jenkins
  • Grafana
  • Graylog
  • Confluence
  • Jira
  • Shell scripting

Location

  • Remote

Work Type

  • Remote
  • On-site (for specific events like larger features, architectural decisions, brainstorming sessions)

Experience Level

  • 5+ years of hands-on full-stack JavaScript experience

Benefits

  • Ownership over tickets and responsibility
  • No unnecessary bureaucracy or micromanagement
  • Build > Talk philosophy
  • Fail fast, learn faster approach
  • High standards, low ego
  • Direct feedback and honest collaboration
  • Investment in growth (hackathons, conferences, community)
  • 30 days of vacation
  • Dec 24 & 31 off
  • Smart Fridays
  • 4 days week possible
  • Mobility (Germany ticket & JobRad)
  • Sports & health offerings
  • Mental health support
  • Corporate benefits
  • RTL+ access

About the Company

  • We use AI to accelerate – not to replace thinking.
  • We design the system, steer the output, and take responsibility for what we ship.
  • Fast where it makes sense. Careful where it matters.
  • We work remote by default – focused, efficient, and with full ownership.
  • For larger features, architectural decisions, and real brainstorming sessions, we come together in Berlin – fast, hands-on, and without unnecessary meeting overhead.

Equal Opportunity

  • smartclip is committed to creating a diverse and inclusive environment. All qualified applicants will receive consideration for employment without regard to race, ethnicity, nationality, age, gender, gender identity, religion, sexual orientation, disability, or any other diverse characteristics.