Nexus Spark Group
Lead Data Engineer
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First Senior Data Hire (Lead Data Engineer)
Location: London
Hybrid: (4 days in the office)
Position Level: Senior
Salary: DOE + Equity
About the Company
Push Boundaries. Deliver Excellence.
What if you could be the person who designs and builds the entire data function instead of inheriting someone else's?
Nexus Spark have partnered with an ambitious, well-funded AI technology business looking for its first senior data hire. This isn't a role where you'll spend your time maintaining legacy platforms. You'll own the design, build, and evolution of the modern data platform that powers an AI-first product used to solve complex operational and business change challenges. You'll work directly alongside founders and engineering/product leaders, influencing technical decisions from day one while helping shape the future of the data engineering function.
Role Overview
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As Lead Data Engineer, you'll be responsible for designing and delivering the data platform that underpins AI products and machine learning capabilities.
Key elements that you will work on:
- Help to design scalable data architecture from the ground up.
- Build batch and real-time data pipelines.
- Develop reliable ingestion, transformation, and storage frameworks.
- Engineer infrastructure supporting AI and machine learning.
- Improve data quality, governance, and platform performance.
- Partner closely with software engineers and AI specialists on new product development.
- Influence long-term technical strategy.
- Help build and mentor the data engineering team as the business grows.
Technical Elements
Preferred candidates are likely to have:
- Russell Group education ideally within technology, data, or business
- Several years of experience in pure Data Engineering
- Strong Python usage
- Experience building scalable distributed data platforms.
- Excellent SQL and database design experience.
- Experience with relational and NoSQL databases.
- Exposure to vector databases or modern AI data platforms.
- Experience working with cloud infrastructure.
- Worked within a start-up/scale-up environment previously
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Would Suit Someone Who:
- Enjoys building platforms rather than maintaining them.
- Likes solving architectural problems.
- Wants genuine ownership and technical influence.
- Thrives in fast-moving environments where decisions happen quickly.
- Loves working closely with founders and product teams.
Interested?
Please click the ‘Apply’ button. Don’t worry if your CV isn’t up to date. Just send what you have and we’ll deal with that later.
Note
- UK-based candidates only
- No sponsorship options offered
- 4 days a week in the London office
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