Tech Lead Fullstack Engineer (Kraków, PL, 30-302)

GFT Technologies SE; Kraków; Hybrid; PLN 194,000 - 298,000; Full time

Benefits offered by this job

Hybrid work in Kraków (3 days/week)

Medical insurance

Lunch subsidy

Life insurance

Online training

E-learning platform access

Social events

Job summary

GFT Technologies SE in Kraków is hiring a senior full stack developer to join a team delivering large-scale financial services platforms. You will work on frontend and backend using React JS and Java, applying AI-driven methods to modernize processes and automate workflows.

The role requires 7+ years of experience, strong communication, and domain knowledge in collateral and margin management. The position offers hybrid work and a comprehensive benefits package.

Qualifications

• 7+ years of experience as a Full Stack Developer.
• Proficiency in React JS and Java.
• Experience with GitHub CLI and Microsoft 365 Copilot.
• Solid understanding of Generative AI concepts and frontier models.
• Strong communication skills.
• Deep domain knowledge in collateral and margin management.
• Experience with prompt engineering.
• Familiarity with AGENTS.md and skills frameworks.

Responsibilities

• Design and develop full stack apps using React JS and Java.
• Build and enhance solutions supporting investment banking operations.
• Leverage GitHub Copilot and Microsoft 365 Copilot in daily development tasks.
• Apply Generative AI to improve software delivery and processes.
• Collaborate with stakeholders to translate business requirements into technical solutions.
• Implement scalable, secure software solutions and promote best practices.
• Participate in code reviews and contribute to modernization efforts.
• Contribute to automation and modernization initiatives.

Skills

React JS

Java

GitHub CLI

MS 365 Copilot

Generative AI

Prompt engineering

Communication

Collateral Margin

AGENTS.md & skills

Tools

Sybase

Job description

Type of contract: Employment contract

Salary range: 17400 - 26700 PLN gross

What will you do?

You will join a team delivering large-scale financial services platforms supporting investment banking operations. The role focuses on digital transformation, process automation, application modernization, and AI-driven software development within a highly regulated environment. You will work across both frontend and backend components while leveraging modern AI tools and technologies to improve development efficiency and business outcomes.

Your tasks

• Design and develop full stack applications using React JS and Java
• Build and enhance solutions supporting investment banking operations
• Leverage GitHub Copilot and Microsoft 365 Copilot in daily development activities
• Apply Generative AI capabilities to improve software delivery and business processes
• Collaborate with stakeholders to understand business requirements and translate them into technical solutions
• Implement and maintain scalable, high-quality, and secure software solutions
• Participate in code reviews and promote engineering best practices
• Contribute to application modernization and automation initiatives

Your skills

• 7+ years of experience as a Full Stack Developer
• Strong experience with React JS and Java
• Experience working with GitHub CLI and Microsoft 365 Copilot
• Sound understanding of Generative AI concepts and frontier models
• Strong communication skills
• Strong domain knowledge in collateral and margin management
• Experience with prompt engineering
• Understanding of structured context in codebases, including AGENTS.md and skills frameworks

Nice to have

• Knowledge of databases, preferably Sybase
• Understanding of AI agents and ability to build them when required
• Understanding of different AI model types and concepts such as online models, offline models, open-weight models, RAG, and context management
• Experience in AI engineering

We offer

• Hybrid work in our client's office (Kraków) 3 days a week
• 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