senior java engineer

Optiveum is seeking a Senior Java Engineer to design and implement Java/Spring Boot microservices, delivering event-driven integrations with Kafka and Azure Service Bus. You will optimize PostgreSQL databases (Azure PostgreSQL Flexible Server) and manage migrations via Liquibase within CI/CD pipelines.The role is hybrid, based in Wrocław, with a start in...

EPAM Systems, Inc. is seeking a Senior Java Engineer with expertise in distributed systems, real-time data processing, and cloud-native architectures to deliver scalable enterprise platforms in a high-throughput environment.You will design and develop Java backends with Spring Boot, build real-time streaming data platforms, and collaborate with...

BAE Systems Digital Intelligence in Poznan is seeking a (Senior) Java Engineer to join an agile team delivering enterprise-scale applications in a hybrid working environment.You will turn high-level designs into concrete engineering tasks, collaborating with architects and developers, and contribute to microservice design, testing and troubleshooting.The...

Elastic is seeking a Principal Software Engineer to join the Elasticsearch - Distributed Systems team. You will tackle deep distributed systems challenges around node communication, data indexing, allocation, and management in a Serverless context.You will shape scale, performance, and resilience across global customers. You will design, implement, and...

Diverse CG Sp. z o.o. Sp.k.is recruiting an experienced Java developer in Warsaw to design, build, and maintain Java applications with a microservices approach. You will work within an Agile setup, collaborating with cross-functional teams, and deliver high-quality solutions while improving performance and documentation. The role requires at least 5 years of...

EPAM Systems, Inc. is seeking a Senior Java Engineer with expertise in distributed systems, real-time data processing, and cloud-native architectures to deliver scalable enterprise platforms in a high-throughput environment.You will design and develop Java backends with Spring Boot, build real-time streaming data platforms, and collaborate with...

emagine Polska seeks a Senior Java Software Engineer to develop Java, Diagnostics, and OTA offboard software. You will focus on vehicle diagnostics and OTA update mechanisms, building backend infrastructure for offboard automotive solutions, including telemetry data management.Responsibilities include building scalable Java/Spring services, managing cloud...

Luxoft in Warsaw is seeking a Senior Java backend developer to join a Regulatory Reporting Platform for a leading US investment bank. You will design and optimize scalable data processing pipelines using Java and Spark, handling large datasets from multiple sources to produce regulatory outputs for numerous jurisdictions.You will work with global teams...

Tieto Tech Consulting in Warsaw, Poland, seeks a Senior Java Backend Developer to support the COM5.Mobile platform used by telecom operators. The role focuses on backend services, TM Forum APIs, and data models, collaborating with product development and value teams.You will design and implement microservices with Java 21 and Quarkus, integrate PostgreSQL...

Radley James is hiring a Java Software Engineer to join an established technology business delivering complex, business-critical software solutions. You’ll be an experienced backend engineer who designs and builds scalable services using Java and Spring Boot.Working with a skilled engineering team, you’ll take ownership of architecture, contribute to...

Sabre is seeking a Senior Software Systems Engineer to join the global Order Management team. You will design, build and deploy mission-critical microservices in a cloud-native environment, focusing on high-scale, low-latency systems with AI-assisted development tools.You will refactor complex codebases, advance stability and drive engineering excellence...

Luxoft Poland is seeking a Senior Forward Deployed Engineer to own end-to-end delivery of complex initiatives, collaborating with development teams and client stakeholders to ship production-ready solutions in security, reliability, and modernization domains.You will modernize Java and Spring apps, containerize with Docker, enhance CI/CD pipelines, improve...

ING Hubs Poland is expanding its high-impact engineering team in Financial Markets, delivering real-time trading platforms used by sales teams, traders and risk managers worldwide.Design and build robust backend services with REST APIs in Java/Spring Boot, focus on scalability, reliability, and CI/CD, and collaborate with traders, quants and business experts...

Trans.eu Group in Poland is seeking an experienced Software Developer to create and maintain high-quality Java microservices using Spring Boot. You will design scalable services, work with RabbitMQ/Kafka, and collaborate with cross-functional teams to align technical solutions with business needs.The role covers building, testing, and deploying services on...

Luxoft Poland is seeking a Senior Forward Deployed Engineer to own end-to-end delivery of complex initiatives, collaborating with development teams and client stakeholders to ship production-ready solutions in security, reliability, and modernization domains.You will modernize Java and Spring apps, containerize with Docker, enhance CI/CD pipelines, improve...

Citi is seeking a Senior Software Engineer to join its Poland-based Technology team, working on secure, scalable software supply chain tooling. You’ll collaborate with multiple engineering squads to implement security-first approaches and modern DevSecOps practices.You will contribute to building cloud-native apps using Java/Spring Boot and Go, with...

Apifonica is hiring a backend engineer to design and implement Java-based services and RESTful APIs. You will build distributed, cloud-native applications using microservices, and work with Docker and Kubernetes in a DevOps-enabled environment.You will own services end-to-end, including monitoring, logging, and incident response, while applying secure...

Scalo poszukuje doświadczonego programisty Java do projektów backendowych. Praca obejmuje rozwój usług w Spring Boot, z wykorzystaniem Postgres, Kafka i architektur reaktywnych. Wymagana jest silna znajomość Java 21/25 oraz ekosystemu Spring.Oferta dotyczy pracy hybrydowej w Polsce, z możliwością wizyt w biurach; budżet do 155 PLN/h + VAT....

Avenga poszukuje Senior Java Developera do projektowania, rozwoju i utrzymania systemów wspierających obsługę szkód. Praca w środowisku mikroserwisowym i monolitycznym z integracjami API, testami i automatyzacją. Silne kompetencje Java, Spring, Kafka oraz SQL są kluczowe.Doświadczenie w AI i praktyki DevOps mile widziane. Praca hybrydowa: 1 dzień w...

HeadHR is seeking a Senior Java Developer for a public sector project based in Warsaw. The successful candidate will develop and maintain tax-related software systems while working in a structured Agile team.The ideal candidate should have strong Java development skills, experience in large-scale projects, and must be fluent in German (C1). The role offers a...