Junior Data Engineer w Kraków, Polska

Expected, Haskell, Clojure, Scala, Python, R, Matlab, Wolfram

Operating system, Linux

About the project, You will join the AI Markets development team, responsible for providing reporting, analytics, and management information from multiple data sources to a diverse set of users, including senior management, quants, traders, and external clients., , A key component of this solution is kdb+, one of the most advanced time-series databases where speed and performance at scale are critical. You will work with large datasets and real-time systems, focusing on data engineering, performance optimization, and API integration., , Sounds like your kind of challenge?

This is how we work, agile

Your responsibilities, Platform Design & Development, •Develop and optimize kdb+ queries and processes to meet low-latency, high-throughput performance requirements, •Build analytic and aggregation layers that feed APIs, downstream systems, and AI/ML workflows, , Data Engineering & Integration, •Expose kdb+ data to front-end applications, AI engines, and reporting systems via APIs, •Collaborate with AI/data engineering teams to deliver structured, high-quality datasets for models, , Performance & Reliability, •Implement monitoring and alerting solutions for kdb+ environments, •Support failover strategies and disaster recovery plans for critical services, , Collaboration & Governance, •Partner with traders, quants, and business stakeholders to translate requirements into scalable solutions, •Adhere to internal policies around data governance, operational risk, and model risk complia, , Note: Detailed project information will be shared during the recruitment process.

A strong analytical mindset and a passion for solving complex data engineering challenges, Solid computer science fundamentals or experience with functional programming languages (Haskell, Clojure, Scala) OR vectorization skills in Python, R, Matlab, or Wolfram, Interest in large datasets, data modeling, and statistical concepts, Familiarity or willingness to learn Linux, Cloud infrastructure, and AI/ML integration, Ability to own tasks from requirements gathering to implementation and testing with cooperative engagement, Excellent problem-solving skills, proactive attitude, and strong communication skills

Optional, Experience in financial services or trading environments, Knowledge of cloud platforms and distributed systems, Exposure to kdb+/q or interest in building expertise

What we offer, Flexible cooperation model, Hybrid work setup – 6 days per month from Kraków office, Collaborative team culture – work alongside experienced professionals eager to share knowledge., Continuous development – access to training platforms and growth opportunities., Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more., High quality equipment – laptop and essential software provided.

This is how we work on a project, Continuous Deployment, Continuous Integration

Benefits, sharing the costs of sports activities, private medical care, sharing the costs of professional training & courses, life insurance

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Mindbox Sp. z o.o., At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe., Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.