Tech jobs

IoT Backend Architect - Java 17/21, Kotlin, Cloud-Native

Cloud Cloud Native Docker Java Kotlin +4 skills

Designs and evolves backend architecture for distributed IoT-like systems using Java/Kotlin, Spring WebFlux, Docker, and Kubernetes in a cloud-native environment.

Tenarai Europe

Senior Backend Team Lead - Java, Cloud & Microservices

Open 24d EuropeLead

API CI/CD Docker GCP gRPC +4 skills

Leads a backend team building Java/Spring Boot microservices and REST/gRPC APIs for high-volume travel transactions on GCP with Docker and Kubernetes.

IIG Sp. z o.o.

Java Developer

API Java Jest Kafka Oracle +4 skills

Build and maintain enterprise Java backend services, integrating core systems like Guidewire and SAP using Spring Boot, Kafka, and Oracle/PostgreSQL.

up to 150 PLN / hr

FreeBalance Inc.

Senior Backend Team Lead: Java, Spring & ERP Architect

Open 24d EuropeLead

Leads a backend team building enterprise Java/Spring/Hibernate applications for a government-focused ERP suite, owning architecture, mentoring engineers, and coordinating cross-team delivery.

Hibernate Java Spring

Renesas Electronics

Open 24d EuropeContractSenior

Senior Backend Engineer (Java) - Cloud, 6-12 Month Temp

Builds backend cloud features for Altium 365 using Java and .NET Core in a high-load, multi-tenant system.

Altium Cloud .NET Java

Luxoft

Cloud-Native Backend Engineer | Java & Python on Azure

Agile AKS API Azure CI/CD +8 skills

Designs and builds microservices-based systems on Azure using Java and Python, focusing on REST APIs, containers, and CI/CD pipelines with Terraform and AKS.

Vention

Senior Java Architect – Event-Driven Backend, Kafka & AWS

Open 24d EuropeSenior

AWS Distributed Systems Event Driven Architecture Kafka Pre-sales +1 skills

Designs and leads event-driven backend systems using Kafka and AWS, reviews architectures, mentors teams, and guides engineering best practices.

Goodspeed sp. z o.o.

Java Developer

Angular Java Jest Redis RxJS +2 skills

Build and maintain a Java-based logistics system for meal-box delivery, working in a newly formed in-house team using Spring Boot, WebFlux, and Redis.

15K – 18K PLN / mo

Luxoft Poland

Senior Cloud-Native Backend Engineer (Java/Python) on Azure

Open 24d EuropeSenior

AKS API Azure Cloud Infrastructure as Code +5 skills

Builds and migrates Java/Python microservices to Azure Kubernetes, using Terraform and REST APIs for a finance securitization platform.

Allegro.eu S.A.

Backend Engineer (Java/Kotlin) for AI-Driven Microservices

Open 24d HybridEurope

AI Java Kafka Kotlin LLM +4 skills

Build backend microservices in Java/Kotlin for an AI-powered merchant assistant handling high-traffic, real-time support using Spring Boot, Kafka, and LLM techniques.

Centrum Elektronicznych Uslug Platniczych eService Sp. z o. o.

Java Developer

Agile Design Patterns E-commerce Git J2EE +7 skills

Build and maintain Java-based payment solutions and Oracle applications for a leading fintech provider, using Spring/J2EE and microservices to power card transactions and merchant services.

Infoplus Technologies UK Limited

Open 24d Europe Licensed UK sponsor

Java Developer

API Git Java REST Spring +2 skills

Build and maintain Java applications using Spring and RESTful APIs, collaborating with cross-functional teams to deliver secure, high-performance software.

WARSAW HEADHUNTERS

SAP ABAP Developer

Infotree Global Solutions

Develops and maintains SAP ERP systems using ABAP for backend processes in a Warsaw-based role.

ABAP ERP SAP

Open 24d Europe H-1B sponsor history

Java Developer