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

Bertelsmann-Jobs; Berlin; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Ownership over tickets

Build > Talk

High standards

Stay sharp

Vacation + holidays

Job summary

smartclip is seeking an experienced software engineer to join the UI Engineering team in Germany. You will build production-grade applications at the intersection of AI, engineering, UX and product, shaping how users interact with our products.

You will own the experience and technology, building from UI to APIs, and collaborating with Product, UX/UI and Engineering to raise the bar for quality and performance. Remote-first with on-site collaboration in Berlin when needed.

Qualifications

• Think and work AI-native.
• 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 with Jest, Vitest or Node.js testing.
• Think beyond the code to understand customers, products and business context.
• Take ownership of outcomes, not just implementation.

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: prototype, implement, debug and test faster while owning architecture and quality.
• Understand the customer, the business and the problem before deciding what to build.
• Collaborate with Product, UX/UI and Engineering to make better decisions together.
• Raise the bar for testing, performance, maintainability and engineering quality.

Skills

AI-native

Full-stack JS

React/Next.js

TypeScript

Node.js

REST APIs

GraphQL

Testing (Jest/Vitest)

Architectural decisions

Tools

AWS

Jenkins

Grafana

Graylog

Confluence

Jira

Shell scripting

Job description

Company Description

Remote in our day-to-day work. On-site when 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.

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.

Job Description

You stopped coding. And that's exactly why we want you.

Software is changing. AI agents are changing how people interact with products - and we're building for what comes next.

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.

Your Mission

Own the experience. Own the technology. Build what comes next.

• 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. Explore, prototype, implement, debug and test faster - while staying firmly in control of architecture, quality and the final result.
• 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.

You're not here to turn tickets into components. You're here to decide what should be built - and then build it.

Qualifications

Your Skills

• Think and work AI-native. You already use AI as part of your engineering workflow and have developed your own approach to getting from idea to production-ready code.
• Bring 5+ years of hands-on full-stack JavaScript experience and a strong track record of shipping real applications.
• Bonus: AWS, Jenkins, Grafana, Graylog, Confluence, Jira, shell scripting.
• 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. You're curious about customers, products and the business and use that context to make better technical decisions.
• Take ownership of outcomes, not just implementation.
• Stay curious about what's next. Experience with AI-first interfaces, agent workflows or natural-language products is a plus.

Additional Information

Why you'll love working with us

• Ownership over tickets:You're trusted with real responsibility, not just tasks. No unnecessary bureaucracy, no micromanagement - we rely on you to take things forward.
• Build > Talk:We test what works - not what sounds good. Fail fast, learn faster.
• High standards, low ego:We take our work seriously, but not ourselves. Direct feedback, honest collaboration, no drama.
• Stay sharp:Hackathons, conferences, community - we invest in your growth and keep you at the cutting edge.
• And yes - the fundamentals are covered too: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, and more.

Your CV is just the starting point.

What matters more to us than your resume: a portfolio, a side project, a demo repo - anything that shows you don't just talk about code, you ship it. Production-ready. Thought through. Done.

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.