Senior Database Administrator (Open-Source/FinTech Stack)
About the Company
We are partnering with a highly successful, high-growth financial technology firm and regulated European market operator. Known for their disruptive approach and cutting-edge trading technology, they handle massive volumes of Real Time market data at microsecond speeds.
Instead of traditional, restrictive corporate database structures, they have built a decentralized open-source data architecture engineered purely for extreme performance and scalability.
The Opportunity
We are seeking a Senior Database Administrator to join a talented Infrastructure team and take true ownership of a varied, modern database estate.
This is a hands-on technical role where you can step away from Legacy monolithic systems. You will manage a highly specialized ecosystem built for speed, data version-control, and deep observability. Working closely with Engineering and Operations teams, you will ensure high availability, advise on schema design, and guarantee that core data engines run flawlessly.
The Tech Stack
- Core Relational: MySQL & PostgreSQL
- High-Performance Time-Series: QuestDB (Used for massive market data ingestion & operational metrics)
- Version-Controlled SQL: Dolt (Git-for-data branching technology)
- Caching & Search: Redis & Elasticsearch
- Observability: Grafana & Linux-based monitoring tools
Key Responsibilities
- Estate Ownership: Administer, monitor, and scale the database ecosystem to ensure continuous high availability and reliability.
- Developer Collaboration: Partner closely with engineering teams on schema design, query optimization, and database access patterns.
- Build Observability: Write complex SQL queries to surface vital business and operational metrics onto Grafana dashboards.
- Infrastructure Resilience: Plan and execute seamless upgrades, patch management, and routinely test point-in-time recovery (RPO/RTO) strategies.
What We Are Looking For
- Strong Open-Source DBA Background: Proven experience as a DBA or Database Engineer managing production-scale MySQL environments.
- PostgreSQL Expertise: Solid knowledge of Postgres query planning, indexing, and connection management. (This is highly transferable for their time-series tech, which utilizes the Postgres wire protocol).
- Linux Native: You are entirely comfortable working in Linux-based server environments using command-line tooling.
- Tech Curiosity: A genuine interest in learning and managing specialized, modern data tools (such as time-series engines or branching database systems).
- FinTech or High-Throughput Experience: Background working in a regulated financial services, trading, or high-throughput environment is highly advantageous.
The Culture
The team operates on a culture of trust, collaboration, and continuous improvement. It is a fast-paced but supportive environment where new ideas are actively encouraged, and engineers are empowered to make a direct impact on the core technology products.
Location: London or Paris (Hybrid - 3 days in office)
Employment Type: Full-time, Permanent
Salary: £80/95k + Bonus + Benefits
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Senior Database Administrator (Open-Source/Fintech Stack) employer: N.P.A.
Join a dynamic and innovative financial institution that prioritises cutting-edge technology and employee development. With a strong focus on collaboration and knowledge sharing, our vibrant work culture fosters growth and offers an excellent benefits package, making it an ideal environment for professionals looking to advance their careers in the fast-paced world of finance. Located in a thriving area, we provide unique opportunities to work on low latency trading platforms while being part of a highly skilled team dedicated to excellence.
