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Senior Java Backend Engineer – IoT & Cloud
Design and build backend services for an IoT platform that connects eSIM devices to cloud systems using Java 17/21, Spring Boot/WebFlux, and Kubernetes.
Java Backend Engineer – FinTech Calypso Specialist
Builds and maintains Java backend services for financial systems using Spring Boot, integrates messaging platforms, and writes optimized SQL and tests.
Senior Java Backend Engineer — Spring/Kafka, Remote
Builds and maintains a Java backend for a fintech app handling sales commission settlements using Spring, Kafka, and databases.
AI Full Stack Software Developer
Build AI-powered internal tools and scalable RAG/LLM systems for a trading firm, integrating Python, Go/Rust, and modern web stacks to enhance productivity across teams.
(Senior) Backend Developer (Node.js) - OneRail’s Technology Hub - Poland
Build and maintain Node.js backend services and APIs for a logistics platform that orchestrates multi-modal deliveries.
Backend (Java) Developer (F/M/N)
Backend developer building Java-based web modules with Spring, Hibernate, and REST APIs, writing unit/integration tests, and solving complex design issues in a hybrid work setup.
Senior Backend Developer NET – IoT Platform
Build and scale a cloud-native Industrial IoT platform in .NET, processing telemetry from thousands of devices with microservices, Kafka, and Kubernetes while securing multi-tenant SaaS deployments.
Manager, Data Engineering (Applications)
Lead a team to build and maintain real-time and batch data pipelines that integrate enterprise applications using MuleSoft and Informatica, ensuring data consistency across retail systems.
JAVA BACKEND DEVELOPER (K/M)
Builds and maintains scalable Java microservices for an IoT platform, focusing on data streaming, event-driven architecture, and REST APIs using Spring, Docker, and Kubernetes.
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.
Backend PHP Developer
Backend PHP developer building and maintaining an e-commerce platform using Symfony, REST APIs, and relational databases in a relaxed, game-focused team.
Senior Java Backend Developer mikroserwisy | DDD | Event-Driven
Build and maintain a scalable, event-driven Talent Acquisition Suite in Java/Spring, using DDD and microservices to manage candidate workflows and integrations.
Senior Backend Developer (ST)
Builds and maintains backend services in Java/Spring Boot, optimizes systems, and ensures software quality with PostgreSQL/Oracle, Kafka/RabbitMQ, and testing tools.
Java/Scala Backend Developer
Builds and maintains a SaaS platform in Java/Scala for asset managers and financial institutions, designing architecture, CI/CD pipelines, and collaborating in Agile teams.
Senior Pyton Backend Developer (Contract, Remote)
Build and scale Python microservices with FastAPI/Django, PostgreSQL, and AWS, integrating APIs and automating CI/CD pipelines for high-impact client projects.
Senior Backend Developer @ Devire
Build and maintain Java/Spring Boot backend services and APIs for a top Polish bank, integrating databases, Kafka/RabbitMQ, and writing automated tests.
MID Backend Developer
Builds and maintains backend services in PHP/Symfony, REST APIs, and real-time features using WebSocket, Elasticsearch, and RabbitMQ.
Kotlin Backend Developer
Build and maintain backend services for a social casino game using Kotlin and Spring Boot, ensuring scalable, clean, and testable code.
Junior Backend Developer
Builds and maintains backend services using PHP, Symfony, REST APIs, and MySQL; assists with WebSocket, Elasticsearch, and RabbitMQ integrations.
Manager, Data Engineering (Applications)
Lead a team to build and maintain real-time and batch data pipelines that integrate enterprise applications like ERP and POS using MuleSoft and Informatica, ensuring data consistency and high uptime.