---
title: 'Senior Data Scientist at MariaDB plc'
canonical: 'https://feeny.ai/job/senior-data-scientist-mariadb-plc-romania-15q91etqxn54'
type: 'job'
last_seen: '2026-09-07'
---

# Senior Data Scientist at MariaDB plc

- **Company:** MariaDB plc
- **Location:** Romania
- **Work type:** remote
- **Posted:** 2026-04-01
- **Last confirmed live:** 2026-09-07
- **Apply:** https://job-boards.eu.greenhouse.io/mariadbplc/jobs/4829004101

## Job description

MariaDB is making a big impact on the world. Whether you’re checking your bank account, buying a coffee, shopping online, making a phone call, listening to music, taking out a loan or ordering takeout – MariaDB is the backbone of applications used everyday. Companies small and large, including 75% of the Fortune 500, run MariaDB, touching the lives of billions of people. With massive reach through Linux distributions, enterprise deployments and public clouds, MariaDB is uniquely positioned as the leading database for modern application development.

## About the Role

We're hiring a Senior Data Scientist with strong programming skills, a deep command of analytical methods, and the ability to turn complex data into clear business insights. You'll join a small, highly skilled team where your work has a direct impact on how the business operates and makes decisions.

This is a hands-on, high-autonomy role. You'll work across the full data stack-writing sophisticated SQL in BigQuery and MariaDB, building automation and tooling in Python, and leveraging AI-powered tools like Windsurf, Gemini, and Claude to work faster and smarter. You'll be expected to understand how data is structured end-to-end, from source systems through to the warehouse, and to know which analytical approach fits which business question.

You'll also be a key communicator-translating complex data into clear narratives for stakeholders across the organization. We need someone who can operate independently, manage their own priorities, and continuously raise the bar on what's possible with our data. If you have a genuine passion for analytics, a GitHub full of projects, and you're the kind of person who's always learning the next thing-we'd love to hear from you.

## Key Responsibilities

- Apply the right analytical methods-statistical analysis, regression, clustering, forecasting, classification-to solve real business problems at scale
- Design and build end-to-end analytical solutions-from data extraction in BigQuery and MariaDB to actionable insights and automated reporting
- Develop and maintain data pipelines, analytical frameworks, and tooling using Python and SQL
- Use AI-powered development tools (Windsurf, Gemini, Claude, Cursor) to accelerate experimentation, code generation, and analysis
- Leverage the latest AI features and tools (LLMs, embeddings, generative AI) to augment and automate analytical workflows
- Build lightweight applications and APIs (FastAPI) to put models and insights into the hands of stakeholders
- Own the data architecture decisions within your domain-schema design, data modeling, and pipeline reliability
- Communicate results, trade-offs, and recommendations clearly to both technical and business audiences
- Map and improve business processes through data-driven analysis and process design

## Requirements & Qualifications

- 7+ years of professional experience in data science, advanced analytics, or a quantitative field
- Expert-level SQL - deep fluency in BigQuery and MariaDB or similar data platforms; you understand query optimization, partitioning, and data modeling
- Strong Python and/or JavaScript skills - production-quality code, not just notebooks; experience with modern data and ML libraries
- Deep understanding of analytical methods - regression, clustering, time series, A/B testing, classification; you know when to apply what and why
- Solid understanding of data architecture - how warehouses, lakes, and pipelines are designed; how to structure data for both analytical and ML workloads
- Proficiency with AI-powered development tools - Windsurf, Gemini, Claude, Cursor, or similar; you leverage AI assistants as a core part of your workflow
- Excellent communication skills - you present complex technical work in a way that drives decisions
- Self-managing and self-sufficient - you set your own priorities, unblock yourself, and deliver without hand-holding
- Relentlessly curious and ambitious - you're always learning, always building, always improving
- A public GitHub profile showcasing your projects, experiments, or contributions

## Nice to Have

- Experience with Next.js or modern frontend frameworks for building data-facing applications
- FastAPI experience for serving models or internal tooling
- Background in business process analysis or operational process design
- Experience working across multiple business departments (Finance, Marketing, Sales, Operations, Engineering) - broad organizational exposure is a big plus
- Experience with JSON-based data formats, APIs, and integration patterns
- Understanding of Docker and Kubernetes - containerization and cluster orchestration experience is a big plus

## Benefits & Culture

- Globally distributed team environment
- Remote or hybrid work options (location-dependent)
- Challenging projects with company-wide impact
- Competitive compensation, 25 days paid annual leave, plus holidays
- A culture that values curiosity, clean engineering, and people who genuinely love what they do

Location – Romania (remote)

Travel – Flexible for adhoc travel

What's in it for you?

## Compensation

Salary Range: 160,000 - 200,000 RON per year (gross) Please note: The starting salary offered will be commensurate with the candidate's skills, qualifications, and relevant experience, in alignment with our gender-neutral compensation framework.

Impact the world of technology by pushing the boundaries of technology and business models, working at MariaDB, plc. Be part of a game-changing organization that encourages outside-the-box thinking, values empowerment, and is truly shaping the future of the software industry.

You’ll be collaborating with high-caliber colleagues around the world, offering unparalleled learning and growth opportunities. We provide a very competitive compensation package, 25 days paid annual leave (plus holidays) and a massive degree of flexibility and freedom, and more.

Salaries for candidates outside the U.S. will vary based on local compensation structures.

How to Apply

If you are interested in this position, please submit your application along with your CV/Resume through our ATS Greenhouse on our MariaDB Careers site.

- At MariaDB we celebrate the diverse experiences and perspectives of our employees because this drives innovation and success. MariaDB is an equal opportunity employer dedicated to creating a welcoming and inclusive workplace for everyone.
- MariaDB does not sponsor work visas or relocation.
- MariaDB is committed to providing accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.
- MariaDB will not accept agency resumes without a prior contractual agreement with HR. Please do not forward resumes to any recruiting alias or employee directly. MariaDB is not responsible for paying any fees associated with any unsolicited submitted CV/Resumes.

## About MariaDB plc

## Company Overview
- **One-liner**: MariaDB plc is the lead developer of the open source MariaDB Server relational database and the provider of a unified enterprise database platform for transactional, analytical, and AI workloads.
- **Entity Type**: Private (acquired by K1 Investment Management in 2024, formerly NYSE: MRDB)
- **Headquarters**: Redwood City, California, USA and Dublin, Ireland
- **Founded**: 2009 (forked from MySQL by the original MySQL team)
- **Founders**: Michael “Monty” Widenius (co-founder of MySQL), David Axmark, and others from the original MySQL team

## Core Business
- **Primary industry**: Enterprise database software / Open source infrastructure
- **Target customers**: B2B – mid-market to large enterprises in banking, telecom, e-commerce, and government; also widely used by developers and in Linux distributions
- **Mission / Purpose**: Provide a drop‑in replacement for MySQL with enhanced features, open‑source flexibility, and enterprise‑grade reliability at a fraction of the cost of proprietary databases.

## Products & Services
- **[MariaDB Server](https://mariadb.com/)**: The widely adopted open‑source relational database, drop‑in compatible with MySQL. Supports standard SQL, JSON, vector search, GIS, and Oracle compatibility.
- **[MariaDB Enterprise Platform](https://mariadb.com/)**: A commercial, subscription‑based database platform with long‑term support (LTS), up to five‑nines availability, automated failover, and direct access to MariaDB engineers. Includes **MariaDB Exa** for high‑performance analytics and native vector search for AI/agentic applications.
- **[MariaDB MaxScale](https://mariadb.com/)**: An advanced database proxy that provides high availability, scalability, security, and intelligent query routing.
- **[SkySQL (Cloud)](https://mariadb.com/)**: A fully managed cloud database service supporting private, public, hybrid, and multi‑cloud deployments.
- **Professional Services**: Migration tools and expert services to simplify moving from legacy databases (Oracle, SQL Server) with up to 90% cost savings claimed.

## Market Standing
- **Valuation/Revenue**: Not publicly disclosed (privately held; K1 Investment Management’s acquisition was reported at ~$180‑200M range in 2024, conflicting reports exist)
- **Key Metric**: Over 3 billion downloads, 700+ enterprise customers, 400+ employees
- **Notable Investors/Partners**: K1 Investment Management (majority owner after 2024 take‑private); open‑source community with 200,000+ contributions
- **Growth Signals**:  
  - MariaDB is the default “M” in the LAMP stack in most Linux distributions  
  - Reaches over 2.5 billion users through Linux distros  
  - Named Data Management Platform of the Year; Inc. 5000 America’s Fastest‑Growing Private Companies (2019‑2020)  
  - Customers include DBS, Nokia, CCV, Ingenico, Copart, and other Fortune‑class brands

## Competitive Advantages
- **MySQL & Oracle compatibility** – easy migration with zero rewrite for MySQL apps, lowering switching costs.
- **Unified platform** – handles transactional, analytical, semi‑structured, and AI data on a single engine, eliminating the need for multiple specialized databases.
- **Open‑source community** – continuous innovation from 200,000+ contributors ensures rapid feature development and broad ecosystem support.
- **Lower TCO** – claims up to 90% cost savings versus legacy proprietary databases (Oracle, SQL Server).
- **Reliability** – up to five‑nines (99.999%) availability with automatic failover, trusted by banks and telecoms.

## Strategic Focus
- **AI‑native features** – native vector search, built‑in RAG, and AI copilots for agentic applications (MariaDB Exa).
- **Cloud expansion** – strengthening SkySQL managed service across public/private/hybrid deployments.
- **Continued Oracle compatibility** – driving migration from legacy databases.
- **Enterprise grade** – long‑term support releases, enterprise SLAs, and professional services to win mission‑critical workloads.

## Why Work Here
- **Remote‑first culture** – most employees work remotely; hubs in Silicon Valley, Ireland, and other locations for collaboration.
- **Open‑source impact** – work on a database that powers Wikipedia, WordPress.com, and countless enterprises; contributors shape the future of relational data.
- **Global team** – 400+ employees across the US, EU, India, APAC. Engineering hubs in Romania, Bulgaria, India, Malaysia, UK, and remote.
- **Career growth** – roles span engineering, sales, marketing, customer success, data science, and support.
- **Perks** – opportunities for skill development, team events, and engagement with the vibrant MariaDB community.

## Sources
1. [mariadb.com](https://mariadb.com/) – Product and company overview
2. [mariadb.com/about-us](https://mariadb.com/about-us/) – About MariaDB, history, stats
3. [job-boards.greenhouse.io/mariadbplc](http://job-boards.greenhouse.io/mariadbplc) – Current job listings

## Other roles at MariaDB plc

- [High Velocity Account Executive](https://feeny.ai/job/high-velocity-account-executive-mariadb-plc-romania-vnptvfsmtdct) — Romania
- [Senior Data Analytics Engineer](https://feeny.ai/job/senior-data-analytics-engineer-mariadb-plc-romania-j1522yez9n35) — Romania
- [Senior Data Analytics Engineer](https://feeny.ai/job/senior-data-analytics-engineer-mariadb-plc-bulgaria-t3jpnft8fp3f) — Bulgaria
- [Remote Database Administrator Cloud](https://feeny.ai/job/remote-database-administrator-cloud-mariadb-plc-malaysia-fya8zgt262fb) — Malaysia
- [High Velocity Account Executive - NAM](https://feeny.ai/job/high-velocity-account-executive-nam-mariadb-plc-united-states-a0bj28hkm04v) — United States
- [Customer Success Manager](https://feeny.ai/job/customer-success-manager-mariadb-plc-india-6ztkaq8dekt8) — India
- [Enterprise Customer Success Manager](https://feeny.ai/job/enterprise-customer-success-manager-mariadb-plc-malaysia-q15c9q34x5c6) — Malaysia
- [Enterprise Product Advisor](https://feeny.ai/job/enterprise-product-advisor-mariadb-plc-malaysia-8vd5s77xa1p8) — Malaysia
- [Enterprise Account Executive - Northeast](https://feeny.ai/job/enterprise-account-executive-northeast-mariadb-plc-united-states-8z8d0w1psp9b) — United States
- [Software Engineer - AI Platform](https://feeny.ai/job/software-engineer-ai-platform-mariadb-plc-india-rybhm2rkgt6h) — India