Senior Data Consultant (KDB)

GFT TECHNOLOGIES SE; Kraków; Hybrid; PLN 172,000 - 220,000; Full time

Job summary

GFT Poland is seeking a skilled data/quant developer to join the AI Markets analytics platform. You will design and optimize data processing, develop APIs, and work with traders, quants, and product owners to deliver low-latency solutions.

The role emphasizes building scalable data pipelines on time-series technology, supporting analytics, reporting, and AI-driven use cases while maintaining strong operational risk controls and proper data governance.

Qualifications

• Experience with large-scale datasets in production.
• Proven ability to optimize high-volume, low-latency data processing.
• Experience with data engineering and distributed data platforms.
• Strong knowledge of Unix/Linux environments.
• Scripting in Python or Bash.
• Git and version control practices; CI/CD pipelines.
• Understanding of secure coding and data protection.
• Trading domain knowledge in FX, Rates, or Equities.

Responsibilities

• Develop and optimize KDB+ processes for low-latency environments.
• Build analytics and aggregation layers for APIs and AI/ML models.
• Expose data and analytics through APIs for stakeholders.
• Collaborate with AI and data teams to provide structured datasets.
• Implement monitoring, alerting, and capacity management.
• Ensure resilience, failover, disaster recovery for critical services.
• Translate business requirements with traders, quants, and product owners.
• Maintain compliance with operational risk and data governance.
• Participate in code reviews and contribute to best practices.
• Support continuous improvement of platform capabilities and performance.

Skills

Large-scale data processing

Low-latency optimization

Data engineering

Python

Bash

Git

CI/CD

Security and data protection

Trading domain knowledge

Problem-solving

Tools

KDB+/q

Unix/Linux

APIs

AI/ML platforms

Job description

Location: Kraków, PL, 30-302

Working place: Hybrid

Type of contract: B2B contract

Salary range:125 - 160 PLN/H

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

Requirements

• 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
• Openness to work hybrid from our client's office (Kraków) 8 days a month

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 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