Senior Backend Developer (w/m/d) (Vollzeit / Teilzeit)

ovos media GmbH; Wien; Hybrid; EUR 54.000 - 66.000; Vollzeit

Benefits dieser Stelle

Flexible working hours

Work from home option

Loft office in Vienna, standing desks

Free fruit & beverages

Team lunch twice a week

Weekly yoga

Annual transit pass

Supportive team of experts

Zusammenfassung

ovos media GmbH in Vienna is seeking a Senior Backend Developer to help evolve the ovos play web app with a strong focus on backend development. You’ll work across the stack when needed, enjoying agile collaboration and a culture of learning.

The role offers flexible hours, remote work options, and a modern loft office in Vienna’s seventh district, with perks like team lunches, yoga, and transit passes. English and German proficiency are required.

Qualifikationen

• Senior Backend Developer with hands-on experience in TypeScript/Node.js.
• Experience with GraphQL, ORM patterns, and scalable backend design.
• Familiarity with AI tooling and LangChain/LangGraph is a plus.
• Willingness to work in Vienna and agile environments.
• Fluent German and very good English required.

Aufgaben

• Develop and extend the web-based ovos play backend while contributing across the stack as needed.
• Collaborate with teams to deliver robust, maintainable services and APIs.
• Apply testing and observability practices to ensure high quality releases.
• Adopt agile methods and continuously learn and adapt to new tooling.

Kenntnisse

TypeScript

Node.js

GraphQL

ORM

LangChain

LangGraph

OpenAI

AWS Bedrock

Langfuse

Jest

Vitest

German (fluency)

English (bilingual)

Tools

Jest

Vitest

Jobbeschreibung

Core-Stack

• TypeScript, Node.js, GraphQL, ORM
• LangChain / LangGraph, OpenAI & AWS Bedrock APIs, Langfuse
• OpenTelemetry, Bugsnag Prometheus, Winston, Kibana

Testing

• Jest, Vitest

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Lifelong learning is a key skill in the 21st century - which makes education an important and worthwhile goal for personal development. At ovos, we work to support people in doing exactly that. We create digital experiences that help improve other people's lives. ovos is owner-managed, with 44 employees from 12 nations. We are family-friendly, diverse and inclusive.

Would you like to join our ovos play team and support us in our mission to make lifelong learning playful? Your work will reach hundreds of thousands of people, and we'll walk every step of the way together - that much is certain.

Senior Backend Developer (all genders) (full-time / part-time)

We're looking for new colleagues for our Vienna office to help us further develop our web-based application ovos play and deliver new projects. You'll spend most of your time hands-on with development - with the freedom to dip into frontend or DevOps now and then, but with a clear focus on development.

As part of one of our development teams, you can use your experience and ideas to make our product even better. You don't have to be an expert in every area, but you should feel confident tackling tasks and problems. Problem-solving skills and a proactive way of working are essential.

We offer an environment in which we work together within clearly defined processes and support each other in achieving great results.

What to expect at ovos:

• A pleasant and professional work environment where everyone can contribute their ideas
  
• Flexible working hours and the option to work from home
  
• A laid-back loft office in Vienna's 7th district with standing desks & plenty of room to breathe
  
• Free fruit & vegetables - and of course tea and coffee
  
• Shared team lunch twice a week, prepared by our in-house cook
  
• Weekly free yoga session
  
• Annual public transport pass (Wiener Linien)
  
• A talented, innovative team with friendly, highly qualified colleagues who are always happy to help
  

The stack you'll be working with:

Core stack

• TypeScript, Node.js, GraphQL, ORM

Infrastructure & data

AI/LLM (growing focus)

• LangChain / LangGraph, OpenAI & AWS Bedrock APIs, Langfuse

Observability & quality

Testing

• Jest, Vitest

Curiosity and enthusiasm for AI coding tools (Claude Code, agent-based workflows). We embrace them, and we'd love for you to help us get even better at it.

Ideally, you should be able to work across all parts of this stack and feel confident enough to contribute wherever it's currently needed.

We're also looking for:

• A willingness to work with agile development methods
• A continuous drive to learn, grow and keep up with the latest technologies and frameworks
• Enjoyment of teamwork
• Fluent German and very good English (our clients are based in the DACH region)

The annual salary offered for this position starts at € 60,000,- gross per year on a full-time basis. Your actual salary depends on the agreed number of hours as well as your qualifications and experience.

Denis, Maciej, Hannes and Sigrid look forward to your application.