7N
Sr Java Developer
Skills
8 months ago
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Important information
Location:
Warsaw, Poland
Work mode:
Onsite
Published on:
16 September 2026
What they need
MUST HAVE:
- 5+ years of experience in Java and Spring
- AWS experience - is able to use and manage cloud services (EKS, SQS/SNS, S3)
- DevOps and infrastructure - we're looking for someone who could support DevOps team
- Following good coding practices like unit testing
- Understanding of microservice architecture
- Proactive in finding solutions and eager to learn
- Good command of English (preferably C1)
NICE TO HAVE:
- JavaScript (jQuery, Dojo, Angular.js)*
- Spock i Groovy
- OAS2+
- Knowledge of NoSQL Databases
- Proficiency in DDD
- Experience in Python or with machine learning
- Resource must be available in CET time zone
Java Technology stack
- Java 11+
- REST
- Spring Boot (security, jpa, web services, etc.)
- Hibernate/JPA
- RDBMS (PostgreSQL ideal)
- Maven
About 7N
Over decades, 7N has been part of several waves of digitalization. Today, our consultants work across industries and geographical borders to deliver the projects that define the new digital realities. We offer a highly specialized portfolio of IT services and solutions delivered by the top 3% of IT professionals. Our expertise spans across many industries, providing digital transformation across all phases of the IT project life cycle.
By engaging early with 7N, you benefit from our experience and expertise when defining the project scope and strategic needs, and you gain flexibility to accommodate changing demands while maintaining control and ownership of IT development.
What is in it for you ?
- An excellent opportunity to work on latest technologies and be amongst top 3% of technical consultants in your domain.
- Excellent health benefits.
- Best in industry salary structure - without any hidden deductions.
- An opportunity to experience work culture that provides - flexibility, Sensitivity, Growth and Respect.
- An opportunity get associated with a value driven organization.
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