Senior Java Developer

Java

city, Kraków

DCV Technologies

1 300 - 1 500PLN

Net per day - B2B

Full-time

B2B

Senior

Hybrid

Tech stack

Java 18+

advanced

Spring Boot

advanced

RESTful APIs

advanced

PostgreSQL/MySQL/MongoDB

regular

Jenkins

regular

CI/CD

regular

Azure

regular

Testing frameworks

regular

Job description

🧠 About the Role

We’re looking for a Senior Java Backend Engineer to join a mission-critical initiative in the financial services domain. This is an advanced backend-focused role suited for an experienced engineer with deep technical know-how across Java 18+, Spring Boot, cloud platforms, and scalable enterprise architectures.

You will be part of a cross-functional team driving digital transformation at scale, delivering secure, high-performance services in a hybrid model (3 days/week onsite in Kraków).

✅ Must-Have Skills & Technologies

☕ Programming & Frameworks:

• Java 18+

• Spring Boot (advanced concepts)

🌐 API Development:

• RESTful APIs, GraphQL

• OpenAPI / Swagger documentation

🗄 Databases & ORM:

• PostgreSQL/MySQL/MongoDB

• Hibernate, JPA

• Query optimization

🔁 CI/CD Pipelines:

• Jenkins, GitLab CI/CD, GitHub Actions

• Automation best practices

📦 Containerization & Orchestration:

• Docker

• Kubernetes (AKS), Helm, config maps

☁️ Cloud Platforms (Azure):

• App Services, AKS, Functions

• Cloud-native patterns

📊 Monitoring & Logging:

• Prometheus, Grafana

• ELK Stack, Splunk

🧪 Testing Frameworks:

• JUnit, TestNG, Mockito, WireMock

• Code coverage tools

📬 Messaging & Integration:

• Kafka, REST/SOAP APIs

• Event-driven architecture

🔐 Security & Authentication:

• OAuth2, JWT

• Spring Security

• Secure coding practices

🚀 What We Expect

• 10+ years of hands-on experience in backend development

• Strong background in enterprise Java systems

• Ability to work in a hybrid setup (3 days onsite in Kraków)

• Strong understanding of scalable systems, security, and DevOps culture

• Proven ability to design and implement cloud-native solutions on Azure

🎯 Why Apply?

• Work with modern Java and cloud technologies on enterprise-grade systems

• Be part of a high-impact project in the financial services domain

• Collaborate with skilled engineers in a stable, long-term environment

• Excellent rate with flexibility for top-tier talent

Ready to elevate backend engineering with enterprise impact? Apply now and join a forward-thinking team in Kraków.

Published: 15.08.2025

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