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Senior Java Developer
Build and maintain scalable Java backend services using Spring Boot, REST APIs, PostgreSQL, and DevOps tools like Docker and Kubernetes for global projects in Kraków.
Senior Python Software Engineer - AI
Builds scalable, secure Python systems and AI agent workflows for an enterprise AI platform, focusing on distributed systems, LLM integrations, and cloud-native architecture.
Java Developer (10/838)
Build and maintain Java/Spring services for a banking platform, collaborating with teams to ship features, optimize performance, and ensure secure, high-quality code.
Full Stack Java Developer
Build and maintain a Java-based air-cargo e-booking system for a major airline, writing core Java services, JPA-backed persistence, and complex SQL queries.
Fullstack Java Developer
Fullstack Java developer building banking applications using Java 11, Spring, Angular, and Oracle, with 70% backend and 30% frontend work.
Senior Java Developer
Build and maintain a tax-administration system in Java/Spring, integrating with external systems and deploying via Kubernetes; troubleshoot and optimize CI/CD pipelines.
Python Data & Machine Learning Engineer
Build and deploy Python-based data pipelines and ML models for financial services, using Spark, TensorFlow, and SQL to analyze risk and support decision-making.
Senior Java Developer
Builds backend services in Java 17 and Spring 6 for diagnostic software, integrating systems and APIs while working in a hybrid Polish-German team.
Java Developer
Build and maintain Java 17 backend services using Spring, CQRS, and REST APIs, while collaborating on AngularJS frontend features in a fintech environment.
Azure Cloud Data Engineer (1879)
Build and migrate data pipelines for a financial-services client, refactoring .NET/SQL workloads into Azure and Snowflake while ensuring data integrity and reliability.
Java Developer
Builds Java-based backend services using Spring, Hibernate, AWS, and Docker in a collaborative Kraków team.
Java Developer
Builds and maintains Java-based backend systems and RESTful APIs using Spring Framework for scalable SaaS platforms.
Quantum Software Developer - Performance
Develop high-performance quantum software, benchmarking tools, and optimizations for PennyLane & Catalyst using C++ and Python to maximize quantum hardware efficiency.
Remote Java Backend Engineer - Scalable Game Services
Builds and optimizes Java-based backend services for online games, focusing on scalability, APIs, and distributed systems in a Warsaw-based team.
Backend API Developer
Builds and maintains backend APIs and distributed systems using Java, Spring Boot, Kubernetes, and AWS for a fintech product team in Kraków.
Principal Data Engineer (Azure)
Principal Data Engineer builds and scales Azure-based data pipelines, lakes, and analytics platforms using Databricks, PySpark, and Azure services to deliver governed data solutions for clients.
Senior .NET Backend Developer - Performance & Data Specialist
Build and optimize high-performance .NET backend services for aviation software, focusing on EF Core, SQL tuning, and AWS RDS/Aurora performance in a microservices architecture.
Senior Backend Developer (C# or Node.js) @ Antal
Design and build scalable backend services and APIs for IoT platforms using C#/.NET or Node.js/TypeScript in a cloud-native environment.
Kafka Data Engineer
Build and maintain Kafka pipelines that feed real-time and archival data stores for an investment bank, using Python and Unix scripting while collaborating with global teams.
Data Engineer - DataBricks
Build and maintain scalable data pipelines in Databricks for a financial client, using PySpark, Azure, and medallion architecture to process batch and streaming data.