Principal Full stack developer - Java

Wysokie Mazowieckie, Poland | Posted on 27/11/2025

We provide end-to-end IT solutions and services including Applications services, Data & Analytics services, AI/ML Technologies and Professional services in the UK and EU market.

Job Description

Skills Required: Java, Go, Python, Microservices, GCP SDKs

Role Overview

We are seeking a skilled Software Engineer (Cloud/Backend) with strong experience in backend development, cloud technologies, and database engineering. The ideal candidate will have a solid foundation in designing and developing scalable backend systems, optimizing database structures, and implementing best practices in SQL programming.

• Design, develop, test, and integrate backend services and microservices using Java, Go, or Python.
• Build and maintain cloud-native applications leveraging Google Cloud Platform (GCP) services and SDKs.
• Ensure backend systems meet performance, security, and scalability requirements.
• Develop and maintain new and existing databases, ensuring efficiency, reliability, and high-quality data processing.
• Support development teams with complex query optimization, schema refinement, and database troubleshooting.
• Apply best practices in SQL programming, modular design, and performance tuning.

Database Design & Modeling

• Analyze application requirements to design optimal database structures.
• Create tables, define relationships, optimize schemas, and ensure data integrity and consistency.
• Develop logical and physical data models aligned with system needs.

Database Development & Implementation

• Implement database schemas using DBMS technologies such as MySQL, PostgreSQL, Oracle, or SQL Server.
• Write SQL code to create tables, views, stored procedures, functions, triggers, and other database components.
• Build reusable scripts and database automation components.

Data Migration & Import/Export

• Plan and execute data migration from legacy systems or external sources.
• Manage data import/export processes and ensure accuracy and completeness.

Database Administration & Maintenance

• Perform database administration tasks including user management, backup configuration, indexing, and performance monitoring.
• Implement tuning strategies, security controls, and disaster recovery procedures.
• Continuously monitor and optimize database performance.

Data Security & Compliance

• Implement appropriate data protection measures, encryption standards, and access control mechanisms.
• Ensure compliance with relevant data governance and privacy regulations.
• Work closely with software engineers, designers, architects, and product teams to understand data requirements.
• Communicate database-related technical details clearly and effectively to cross-functional teams.
• Participate in design discussions and contribute to architectural decisions.

Preferred Qualifications

• Experience with microservices architecture and distributed systems.
• Strong understanding of cloud principles and hands-on experience with GCP services.
• Proficiency in SQL, database performance optimization, and code reviews.
• Familiarity with version control systems, CI/CD pipelines, and DevOps practices.
• Strong problem-solving skills and ability to work in collaborative, agile environments.