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Build and maintain distributed big-data pipelines using Spark, Scala, Python, and AWS to process large datasets in near real-time for analytics and visualization.
Builds and maintains distributed Spark/Scala pipelines on AWS to process large datasets in near real-time, enabling analytics and visualization for clients.
Designs and leads Paymentus’s enterprise payments platform, defining scalable microservices, APIs, and data flows while mentoring engineers and translating business needs into technical solutions.
Builds and improves React-based web UIs and some back-end services for network-management tools used by telecom operators, using Java/Spring and modern dev practices.
Build and maintain a global logistics system in Java/Spring with Angular frontend, migrating from legacy Java Swing to modern web tech while ensuring reliability and performance for worldwide Sea/Air operations.
Build and maintain full-stack Java/Angular applications for European banks, designing scalable microservices and modern UIs while collaborating with cross-functional teams.
Senior Software Engineer builds and maintains a TaaS platform in Java/Spring, designing resilient microservices and REST APIs while collaborating with stakeholders.
Build and maintain Java-based network management and optical transport applications on Linux, contributing to telecom and broadband solutions.
Builds and maintains a Java/Angular analytics platform used by government agencies and Fortune 500s to detect financial crime and threats.
Builds and maintains Java-based fintech tools that help clients create payment solutions faster, using Java SE 17, Eclipse RCP, and related technologies.
Builds and maintains Java-based backend services for automotive clients using Spring, Hibernate, and cloud-native tools like Docker and Kubernetes.
Builds and tests Java-based microservices and JavaScript frontend for a banking CRM using Spring, REST APIs, and SQL; works 2 days/week in Poznań/Kalisz.
Build scalable Java/Spring microservices and Angular UIs in a hybrid role, using AWS, Kafka, and CI/CD pipelines for a stable long-term project.
Builds and maintains Java-based fintech tools that help clients create payment solutions, working with Java SE 17, Eclipse RCP, and financial software practices.
Build and maintain banking apps for insurance and investment workflows using Java, Spring Boot, Angular, and cloud tools like AWS/Azure.
Build and maintain full-stack Java/Angular apps in a microservices architecture on AWS, using Kafka for real-time data and DevOps tools for CI/CD.
Build and maintain Java/Spring backend services and React UIs, writing clean code, tests, and participating in full delivery cycles from requirements to production deployments.
Maintain a cloud-based cybersecurity platform that scans IT infrastructure for vulnerabilities using Java/Spring and React, with Docker/Kubernetes deployment.
Develops Java applications using Spring, Hibernate, and REST APIs, writes unit/integration tests, and collaborates in an Agile team.
Build and expand a financial platform using Java, Spring Boot, and React; collaborate with a global team to deliver scalable solutions.
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