Senior Data Engineer
Estimated salary
€5,342 – €7,845per month
Auto-estimated from similar roles, location, experience & market data. Actual pay may vary.
Description
Keyrock is a leading digital asset market maker and liquidity provider, founded in 2017. We partner with over 250 team members from 42 nationalities, operating predominantly remote with hubs in London, Brussels, and Singapore. We trade on more than 80 venues and offer services including market making, options trading, high-frequency trading, OTC, and DeFi trading desks. The Central Data Team (CDT) is building the Keyrock Data Platform to provide real-time data and context to all functions, including trading desks, wealth management, product, risk, finance, compliance, and research. As an early hire, you will contribute to major decisions and build work, shaping the platform, standards, and team culture.
Requirements
- 8+ years of building production data systems that other people rely on.
- Strong proficiency in Python and SQL: not just being able to write a query, but being able to reason about what the engine is doing with it.
- Code that's easy for someone else to read, test, and delete later.
- Strong understanding of data modelling for both streaming and analytical workloads.
- Efficiency, quality, idempotency, and observability are taken seriously by default.
- You've designed and operated streaming systems on Kafka, Redpanda, MSK, or Kinesis, and you have opinions about partitioning, consumer groups, offsets, and schema registries.
- You've used a time-series store in production (ClickHouse ideally; TimescaleDB, QuestDB, or similar are fine too) and can talk about table design as a function of query patterns.
- You've worked with a lakehouse architecture and reason about table layout, partitioning, and compaction as design choices that shape query performance and storage cost.
- You build for self-healing and idempotency. Reprocessing is safe, retries don't double-write, and the system recovers without a human in the loop.
- Docker, Terraform, and CI/CD are how you work, not a separate 'DevOps' thing.
- You think about cost and performance early.
- You instrument as you build: logs, metrics, and traces are part of the system from day one.
- You design for data quality and governance up front covering contracts, validation, lineage, and ownership.
- You reason from first principles when a problem is new, stay pragmatic when it isn't, and update your view when you learn more.
- You treat the trading desks, wealth and asset management, product, risk, finance, compliance, and research as customers of what you build, and communicate with them that way.
- You optimise for outcomes over output. A smaller, simpler thing that ships and works beats a bigger thing that doesn't.
- You take ownership end-to-end: design, ship, operate, improve.
- You say what you think including when it's an unpopular take. You change your mind when the argument is better.
- You make the people around you better. Reviews are real, juniors grow from working with you, and peers want to work with you again.
- You're curious about how markets work. Data engineering on its own won't keep you interested here.
- You're honest about what you know and what you don't, and quick to close the gap.
- You understand financial market data: order books, trades, reference data, portfolios, exposures. Crypto, TradFi, or both are a strong plus.
Experience Level
InternEntry LevelMid-levelSeniorLeadExecutive
Benefits
A from-scratch mandate. You'll be among the first hires in CDT, and the platform, the standards, and the team culture are yours to shape with us.
Strong partners. Close working relationships with Architecture, Infrastructure, Platform, and the desks themselves. You won't be building data in a vacuum.
Autonomy on how you work. Flexible hours, remote-first, business-hours on-call shared across the team.
A competitive salary package, with various benefits.
A team that likes each other. Regular online get-togethers and a yearly onsite where everyone's in the same room.
💰 Net Salary Calculator
Tax class 1, no church tax
Gross Salary
€79,116/year
€6,593/month
Total Deductions
€31,538
40% effective rate
Net Salary (Take Home)
€3,964/mo
€47,578/year
Deduction Breakdown
🏛️ Income Tax€15,376
🏦 Pension Insurance€7,357
🏥 Health Insurance€6,103
🫶 Care Insurance€1,674
📋 Unemployment Insurance€1,028
📍 Life in Berlin
👥
Population
3.6M
⭐
Quality of Life
8.0
🇬🇧
English Friendly
9.0
💻
Tech Scene
9.0
🌍
International
10.0
🚇
Public Transport
9.0
🚴
Bikeability
9.0
🌬️
Air Quality
6.0
🌳
Green Spaces
7.0
🚗
Car Free
8.0
ℹ️
About Berlin
- •Creative and tech hub
- •Diverse neighborhoods
- •Excellent public transport
🌤️
Climate
- •Continental climate
- •Cold winters
- •Mild summers
- •Four distinct seasons
❄️Jan: 0°C☀️Jul: 19°C📅Avg: 10°C
☀️1625 sunshine hours/year
🛡️
Safety
- •Generally safe
- •Higher petty crime than Munich
- •Some areas less safe at night
Overall:7.0
🏥
Healthcare
- •Good hospital network
- •Charité is world-renowned
- •Wait times can vary
Quality: 9.0Access: 8.0
🎭
Culture
- •World-class museums
- •Vibrant art scene
- •Rich history
🎉
Nightlife
- •Famous club scene
- •Diverse nightlife
- •24/7 culture
🏞️
Recreation
- •Many parks
- •Lakes
- •Tiergarten
- •Active outdoor scene
💰
Cost of Living
- •More affordable than Munich
- •Prices rising rapidly
- •Still cheaper than many European capitals
🏠 Rent (1BR center):€1231
⚡ Utilities:€220
🛒 Groceries:€280
🍽️ Dining out:€16
Engagement
Views
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Part of Collections
Keyrock is a digital asset market maker and liquidity provider using proprietary algorithmic trading technology for digital asset markets.
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