Full-Time

Senior – Data Engineer

Integration, m/w/d

Updated on 9/4/2026

A11

A11

Hands-on operations for scaling tech startups

Compensation Overview

€60k - €85k/yr

Paderborn, Germany

In Person

On-site in Bielefeld, Germany.

Category
Data & Analytics (1)
Required Skills
Python
Airflow
Git
BigQuery
SQL
OpenAI
Postgres
Infrastructure as Code (IaC)
AWS
n8n
Terraform
REST APIs
Serverless

Get referred to A11

See people who can refer or advise you

Requirements
  • 5+ years experience as Backend-, Data- oder Integration Engineer with very good knowledge in Python
  • Experience with dbt (modeling, testing, documentation)
  • Experience with serverless architectures (Cloud Functions, AWS Lambda or similar) and solid understanding of event-driven architecture (Pub/Sub, Message Queues, Events)
  • Sound judgment in choosing between batch and event-driven processing depending on the use case
  • Experience with SQL and relational databases (PostgreSQL or similar) and proficient handling of REST APIs, Git and CI/CD pipelines
  • Pragmatic approach: MVP over perfection, speed over over-engineering
  • German language proficiency (native or near-native)
Responsibilities
  • Integration with core and partner systems (ERP, CRM etc.)
  • Data modeling and performance optimization in PostgreSQL, Firestore and BigQuery; developing and deploying Google Cloud Functions
  • Building event-driven systems with Google Cloud Pub/Sub and deciding between real-time and batch processing depending on use case
  • Implementing workflow orchestration with n8n or Airflow and ensuring robust error handling, retry logic and monitoring
  • Integrating LLM APIs (OpenAI, Anthropic) into data pipelines and building retrieval-augmented generation workflows: preparing data, chunking, vectorizing and loading into vector databases
  • Managing CI/CD pipelines with GitHub Actions / Cloud Build and Infrastructure as Code with Terraform; effectively using AI tools (Cursor, Claude Code)
Desired Qualifications
  • GCP experience (Cloud Functions, Pub/Sub, BigQuery)
  • Workflow tools (n8n, Airflow)
  • Terraform
  • Firestore/NoSQL
  • Vector DBs or LLM integration

A11 embeds its team of experienced operators into fast-growing tech companies to act as an external operations team that drives internal growth. By working alongside founders and business leaders, A11 helps scale various functions from within the client organization, using hands-on, in-house leadership to accelerate expansion. The product works by integrating its operators into the client’s teams, taking on operational roles and driving change across functions such as growth, product, and operations, effectively serving as interim management and growth consulting. What sets A11 apart from competitors is its bench of operators who have already scaled companies to billion-dollar valuations and its ability to embed deeply into a company’s day-to-day operations, rather than offering purely advisory services. Its goal is to help founders navigate rapid growth, optimize scaling processes, and build the operational capabilities needed to achieve large-scale success.

Company Size

N/A

Company Stage

N/A

Total Funding

N/A

Headquarters

N/A

Founded

2025

Get referred to A11

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • A11’s Berlin recruiting stayed hot, with 45-plus live roles in September 2026.
  • ARX Robotics raised a €42 million Series A after A11 built its team.
  • Trade Republic launched new trading technology in July 2026, sustaining A11 relevance.

What critics are saying

  • Clients internalize A11’s playbook, shrinking recurring demand by 2027.
  • A11 still depends on founder-led relationships, especially Jan Miczaika and Moritz Claussen.
  • Losing Trade Republic or Sennder would break the reference flywheel and threaten viability.

What makes A11 unique

  • Jan Miczaika and Moritz Claussen bring Wooga and cargo.one scaling credibility.
  • A11 embeds operators directly inside clients, not an external slide-deck consultancy.
  • Public proof points include Trade Republic, Sennder, and ARX Robotics team builds.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Flexible Work Hours

Paid Vacation

Holiday Breaks?

Remote Work Options

Wellness Program