Senior Java Developer

AmRest Holdings SE; Wrocław; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

S3 Connected Health is seeking a Senior Java Developer to design and build highly scalable JAVA enterprise systems. You will participate in requirements gathering and contribute to technology recommendations while communicating effectively with clients and cross-functional teams.

The role requires strong Java, Spring, REST, and microservices experience, plus SQL/JPA knowledge. A flexible working model including remote, hybrid, and office-based collaboration is offered.

Qualifications

• Minimum 5 years of experience in design and development of JAVA systems.
• Strong understanding of OOP, data models and design patterns.
• Broad knowledge of Spring (Spring Boot) framework.
• Experience building server applications with REST API.
• Experience with SQL databases and JPA/Hibernate.

Responsibilities

• Designing and developing leading-edge, highly scalable JAVA enterprise systems.
• Participation in system requirements.
• Contributing input to technology recommendations throughout the project lifecycle.
• Effective communication with clients and team members to solve complex technical challenges.
• Identifying opportunities for improvement and suggesting changes.

Skills

Java

Spring

REST API

SQL

JPA/Hibernate

Kafka

Microservices

English

Tools

Kubernetes

Docker

Helm Charts

Avro/Protobuf/JSON

Job description

S3 Connected Health is a leading digital health company headquartered in Dublin, Ireland. We are a team of over 250 clinicians, behavioral scientists, and technologists dedicated to transforming healthcare through innovative digital solutions. We create state-of-the-art platforms for remote patient monitoring, medication adherence, and patient engagement that empower millions to improve their health and quality of life.

Key Responsibilities:

Working as aSenior Java Developer, you will be responsible for:

• Designing and developing of leading-edge, highly scalable JAVA enterprise systems
• Participation in system requirements
• The input to the technology recommendations and decisions throughout the project lifecycle
• Effective communication with clients and team members to solve complex technical challenges
• Identifying opportunities for improvement and making constructive suggestions for changes

Qualifications and experience required:

• Minimum 5 years of experience in design and development of JAVA systems
• Understanding of data models, OOP, and design patterns
• Broad knowledge of Spring (Spring Boot) framework
• Experience building server applications with REST API
• Experience with SQL database
• Good knowledge of JPA (Hibernate)
• Kafka (or any messaging broker)
• Basic AI tools skills
• Experience in designing and implementing systems based on microservices architecture
• Good verbal and written communication skills in English and ability to work in both international and multifunctional teams

Experience in any of the following areas is a distinct advantage:

• Kubernetes, Docker, and Helm Charts.
• Knowledge of serialization libraries (for example, Avro, Protobuf, JSON)
• Application performance profiling/tuning
• Integration with external systems
• Telehealth or Telecare system experience
• Work on products that have a real impact on patients' lives
• Collaborate with multidisciplinary teams spanning product design, software, hardware, systems engineering, quality, and regulatory affairs
• Contribute to innovative connected medical device and digital health programs across global markets
• Be part of an organization with deep expertise in regulated healthcare technology and a strong track record of bringing complex products to market
• Enjoy a flexible working model with remote, hybrid and office-based collaboration options

We reserve the right to contact only the chosen candidates.