Junior Data Engineer (KDB)

Type of contract: Employment contract

Salary range: 8650 - 13850 PLN gross

What will you do?

You will join the AI Markets development team and work with KDB+/q, one of the most advanced time-series database technologies used in financial markets. The team delivers reporting, analytics, and management information for traders, quants, sales teams, senior management, and external clients. You will help develop high-performance data solutions, optimize access to large datasets, and support AI Markets capabilities through scalable analytics and APIs while collaborating with global teams across Europe, Asia, and North America.

Your tasks

• Develop and optimize KDB+ processes and queries for low-latency and high-throughput applications
• Build analytics and aggregation layers consumed by downstream systems, APIs, and AI/ML models
• Expose KDB+ data and analytics through APIs and services
• Work with AI and data engineering teams to prepare datasets for model training and execution
• Implement monitoring, alerting, and capacity management for KDB+ environments
• Support resilience, failover, and disaster recovery capabilities for critical services
• Collaborate with traders, quants, sales teams, and product owners to deliver business solutions
• Ensure compliance with operational risk, model risk, and data governance requirements
• Participate in data analysis, testing, and software delivery activities

Your skills

• Analytical mindset with a passion for solving complex data engineering problems
• Strong computer science fundamentals
• Knowledge of functional programming concepts or experience with languages such as Clojure, Haskell, or Scala
• Interest in vectorized programming approaches using Python, R, Matlab/Octave, or Wolfram Mathematica
• Passion for technology, automation, and continuous improvement
• Interest in large-scale data processing and basic statistical concepts
• Knowledge of or willingness to learn Linux and client-server technologies
• Interest in cloud infrastructure and AI/ML technologies
• Ability to understand requirements and translate them into technical solutions
• Strong collaboration and problem-solving skills

Nice to have

• Knowledge of KDB+/q
• Experience with financial markets or trading systems
• Knowledge of API development
• Experience with cloud platforms
• Understanding of monitoring and observability tools
• Exposure to AI/ML projects

We offer

• Hybrid work in our client's office (Kraków) 8 days a month
• Working in a highly experienced and dedicated team
• Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
• Online training and certifications
• Access to e-learning platform
• Social events

We are GFT Poland. WE KNOW how to tackle complex issues with innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun and develop as human beings.

Why Choose GFT?

• A culture of top performance
• Deep tech IT engineering & consulting
• 1200 skilled & top-class experts
• 77% of the team are regular/senior
• Products that contribute to a sustainable world
• Competitive salary and benefits
• Ambitious projects, trainings and tools you need to flourish
• Google Cloud Partner of the Year - for going above and beyond for customers

Not Ready To Apply?

Stay connected! Enter your e-mail and we will keep you informed about upcoming events and opportunities that match your interests.

Register for Job Alerts