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Principal Databricks Data Engineer
Principal Data Engineer leading the migration from Cloudera to Databricks, building scalable Lakehouse architectures for finance and risk analytics using PySpark, Delta Lake, and Medallion patterns.
Java Developer
Builds and maintains Java/Spring backend services and REST APIs for clients in finance, healthcare, and e-commerce, using Kafka, CI/CD, and monitoring tools.
Java Developer
Build and maintain a large-scale Terminal Management System for 300k+ payment terminals using Java, Spring, Hibernate, RabbitMQ, and distributed architectures.
Senior Java Developer
Build and maintain Java-based FX Options pricing platforms using core Java, Spring Boot, and Oracle, while collaborating in an Agile Scrum team.
Java Developer
Build and maintain backend systems for mobile banking using Java, Spring, and Hibernate, while supporting deployments, testing, and production fixes.
Tech Lead Java (Backend) - F/M @ ASTEK Polska
Lead a backend team building and maintaining insurance systems in Java/Spring Boot, shaping architecture and code quality for thousands of users.
Java Developer [zdalnie]
Build and maintain a new identity-and-access system in Java/Spring Boot, integrating with React frontends and Kafka pipelines.
Sr./Staff Backend Engineer - Java (Poland)
Build and maintain scalable, low-latency Java backend services on AWS for a SaaS AI risk decisioning platform used by banks and fintechs to detect fraud and manage compliance.
Java Developer
Builds a new insurance sales platform from scratch using Java, Spring Boot, and Angular; maintains high performance and reliability for thousands of agents.
Java Developer
Build and maintain Java applications with a focus on scalability, security, and performance, using Spring, Docker, Kubernetes, and CI/CD pipelines.
Senior Java Backend Engineer - MES & SAP Integrations
Senior Java developer builds backend services in Java 11+ and Java EE to integrate MES with SAP and plant controls across multiple sites.
Full Stack Developer, AI
Build full-stack HR tech systems (Java, Python, Angular, Spring Boot) and AI-powered pipelines (Snowflake, AWS, Airflow) while owning CI/CD, DevOps, and cloud deployments.
Java Developer
Builds and maintains a microservices-based e-commerce backend in Java/Kotlin with Spring, Oracle/PostgreSQL, AWS/GCP/Azure, CI/CD, Kubernetes, and automated testing.
Java Backend Engineer (Spring Boot) - Hybrid (Warsaw)
Mid-level backend developer building and optimizing microservices for a fintech loan workflow system using Spring Boot, Kafka, PostgreSQL, and Kubernetes.
Senior Java Backend Engineer - Microservices, Kafka & Cloud
Builds secure, scalable Java microservices with Spring Boot, Kafka, and CI/CD pipelines, using PostgreSQL/MongoDB and cloud tools in a fast-paced outsourcing environment.
Senior Java Backend Engineer (Core Java, Trading Systems) @ Vistulo (for a major N. American bank)
Build low-latency trading systems in core Java for a major North American bank, focusing on performance, distributed services, and financial-domain problems.
Software Backend Engineer (Java) @ Branchspace
Builds and maintains scalable Java backend services for travel brands using Spring Boot, REST APIs, and cloud tools like AWS and Kubernetes.
Java Developer
Build and maintain scalable Spring Boot microservices and REST APIs for a telecom client, using AWS, Kubernetes, and event-driven patterns while owning end-to-end DevOps and testing.
Java Developer
Build enterprise Java backends with Spring Boot, REST APIs, and microservices; write SQL, optimize queries, and integrate Kafka while ensuring security and test coverage.
Java Developer/Senior Java Developer (Fullstack)
Builds enterprise-grade CRM, billing, and order-management systems for telecom operators using Java/Spring Boot, Angular, and event-driven microservices in a cloud/CI/CD environment.