Data engineer Jobs in Maintal

Founded in Germany in 2020, QuoIntelligence is Europe’s leading provider of Unified Risk Intelligence – a strategic fusion of Threat Intelligence, Digital Risk Protection, and Risk Intelligence services. We enable organizations to proactively identify and mitigate cyber, geopolitical, and physical risks with intelligence tailored to their unique threat landscape.

Unlike traditional feed-based solutions, every client benefits from our analysts' work supported by Agent Karla’s automation and our proprietary Mercury platform, ensuring high-quality intelligence with low operational friction.

Deeply embedded in the European regulatory and operational context, and with legal entities in Germany, Italy, and Spain, QuoIntelligence is the trusted partner to critical infrastructure operators, significant financial institutions, government agencies and enterprises across the EU.

The Opportunity

You'll own the full data stack for cybersecurity intelligence at QuoIntelligence, building and evolving the pipelines that power our Mercury platform and analyst workflows. This is a role where your architectural decisions have real, visible impact, and where you'll collaborate closely with a small, expert team of two engineers on the data side.

Our platform runs on DigitalOcean with a custom-built infrastructure: ZMQ message queues, Docker containers, hand-rolled deployment pipelines, and in-house-maintained Python libraries. It was built before today's managed services existed, and it works because engineers who genuinely understood distributed systems built it from the ground up.

The first major project is leading our migration to AWS, transitioning from this custom infrastructure to managed services, without disrupting production. It's the kind of challenge that requires both depth and adaptability: keeping what exists healthy while architecting what comes next. If you thrive in that kind of dual mandate, this role was designed for you.

You'll Thrive Here If...

What You'll Do

• Build and design data pipelines for ingestion, processing, and modeling of cybersecurity intelligence that feeds Mercury and analyst workflows

• Partner with Threat Intelligence Engineers on data access patterns, tool integration, and evolving data sources as priorities shift

• Shape the team's technical direction: with two engineers, your judgment carries weight

• Keep the existing DigitalOcean platform running: manage containers, handle library updates, and debug custom services with confidence

• Lead the AWS migration: plan and execute the transition to managed services, with measurable benchmarks at every phase

AI-First in Data Engineering

AI is an operating principle here. We use AI tools as a core part of how we work. On a lean team maintaining hand-built infrastructure, they're what let us move at the pace of a much larger engineering org.

AI as an operating system. You use Copilot, Claude, Cursor (or equivalents) daily to navigate Go services you didn't write, debug custom ZMQ queues, and generate Docker configurations as part of your daily workflow.

Evaluate, Integrate, Repeat. Not every AI-generated suggestion belongs in a pipeline processing cybersecurity intelligence data. You test tools against QI's actual problems (migrating custom services to AWS, parsing threat feed data, maintaining manually versioned Python libraries) and drop what doesn't hold up in production.

Define success first. Every pipeline feeding Mercury has defined criteria before it ships: ingestion throughput, data freshness, and error rates. We run the AWS migration on measurable benchmarks at each phase, not just "it works on staging." AI accelerates the testing loop, but the loop needs a target.

What You'll Bring

Must-haves:

• Python as your primary language for data engineering work

• A solid foundation in pipeline design, you can reason about data from ingestion through modeling

• Docker fluency: deploying, debugging, and managing containerized services is routine for you

• Experience building custom solutions when no off-the-shelf solution fits, writing the infrastructure yourself, not just assembling managed services

• Cloud platform experience (AWS preferred, GCP, or Azure also relevant): enough to architect the target state of a managed-services migration

• Microservices architecture or distributed systems: you've designed or maintained service-oriented systems

• Working familiarity with Go: you'll read, debug, and modify Go code in some production services. Side projects and CLI tools count; we expect a ramp-up period

You'll also need professional proficiency in English (the team works across countries).

Nice-to-Haves:

• Redis or ZMQ experience for message queuing

• Legacy system maintenance: keeping aging infrastructure healthy while building its replacement

• Cybersecurity or threat intelligence background

Recruitment Process

We aim to be as transparent as possible throughout the process and will share updates with you whenever we have progress on our end. To manage your expectations transparently, we have structured the recruitment process as follows:

1. Recruiter Screen

2. Take-Home Assignment

3. Technical Interview

4. Culture Add Interview

5. Offer & Background Check

We welcome applications regardless of gender, nationality, ethnic origin, religion, disability, age, or sexual identity. Diversity is key to producing high-quality intelligence.