Senior Data Engineer (KDB)

GFT TECHNOLOGIES SE; Kraków; Hybrid; PLN 163,000 - 249,000; Full time

Benefits offered by this job

Hybrid work in Kraków

Medical, sport, lunch subsidy

Training and certifications

Online training platform

Social events

Job summary

GFT TECHNOLOGIES SE in Kraków, Poland is seeking a data-focused engineer to join the AI Markets development team. You will design and optimize data processing, develop APIs and analytics capabilities, and collaborate with traders, quants, and product owners to deliver scalable, low-latency solutions.

The role requires strong experience with KDB+ and high-volume data processing, plus Unix/Linux, scripting (Python/Bash), and CI/CD practices. Hybrid work is offered in Kraków.

Qualifications

• Experience designing and optimizing data processing for high-volume, low-latency environments.
• Proven ability to develop APIs and analytics capabilities for trading-related platforms.
• Strong knowledge of Unix/Linux environments and scripting (Python or Bash).
• Experience with CI/CD pipelines and automated deployment.

Responsibilities

• Develop and optimize KDB+ processes for low-latency workloads.
• Build analytics layers for APIs and AI/ML models.
• Expose data through APIs and services for stakeholders.
• Collaborate with traders and quants to translate requirements.
• Implement monitoring, alerting, and capacity management.
• Ensure resilience, failover, and DR strategies.
• Participate in code reviews and establish coding standards.
• Work with data engineering teams on scalable datasets.

Skills

Unix/Linux

Python

Bash

Git

CI/CD

Debugging

Problem solving

Trading domain knowledge

Tools

KDB+

Job description

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Date: Aug 21, 2026

Location: Kraków, PL, 30-302

Working place: Hybrid

Working Location:

Type of contract: Employment contract

Salary range: 14600 - 22300 PLN gross

What will you do?

Join the AI Markets development team and help build and enhance a critical analytics and reporting platform based on high-volume market data. You will design and optimize data processing solutions, develop APIs and analytics capabilities, and work closely with traders, quants, sales teams, and product owners. The role offers the opportunity to work with one of the most advanced time-series technologies in the market while contributing to scalable, low-latency solutions that support reporting, analytics, and AI-driven use cases.

• Develop and optimize KDB+ processes and queries for low-latency and high-throughput environments
• Build analytics and aggregation layers for downstream applications, APIs, and AI/ML models
• Expose data and analytics through APIs and services for business and technology stakeholders
• Collaborate with AI and data engineering teams to deliver structured datasets for model training and execution
• Implement monitoring, alerting, and capacity management across KDB+ environments
• Ensure resilience, failover capabilities, and disaster recovery strategies for critical services
• Translate business requirements into technical solutions together with traders, quants, sales teams, and product owners
• Maintain compliance with operational risk, model risk, and data governance standards
• Participate in code reviews and contribute to development standards and best practices
• Support continuous improvement of platform capabilities and performance
• Strong hands-on experience working with large-scale datasets in production environments
• Proven experience optimizing high-volume and low-latency data processing solutions
• Experience with data engineering and distributed data platforms
• Strong knowledge of Unix/Linux environments
• Experience with scripting languages such as Python or Bash
• Strong knowledge of Git and version control practices
• Experience with CI/CD pipelines and automated deployment processes
• Strong debugging and problem-solving skills in production environments
• Understanding of secure coding, data protection, and operational risk principles
• Experience within at least one trading domain such as FX, Rates, Credit, Equities, or Commodities
• Understanding of electronic trading, pricing, and risk concepts
• Ability to work closely with business and quantitative stakeholders

Nice to have

• Experience with KDB+/q
• Experience supporting AI/ML platforms
• Experience building analytics platforms
• Knowledge of time-series databases and time-series analytics
• Experience with anomaly detection solutions
• Experience with signal generation for trading or client analytics

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