Senior Software Engineer (Java + Neo4j) – Katowice, Poland

Sopra Steria; Katowice; On-site; PLN 133,920 - 178,560; Full time

Benefits offered by this job

Luxmed

Medicover Sport

Worksmile

Languages learning platform

Referral bonus

Life insurance

Conferences

Tech Lunches

Free parking

Workation and fruits

Job summary

Sopra Steria Polska is seeking a Senior Software Engineer (Java + Neo4j) to join a multinational team in Katowice for a major aeronautical project. You will design and deliver robust software in a stable industrial environment with colleagues across France, Poland, Canada and India.

Eligibility requires EU citizenship, residence in Poland, and willingness to commute to Katowice. The role involves hands-on development with Java 11/8–21, Spring, Spring Boot, Angular, OracleDB and PostgreSQL, plus

Qualifications

• 4+ years in a senior or senior-ready role in software
• Strong Java 8–21 experience and Neo4j 4.4–5.x
• Spring 5.2 / Spring Boot 2.3 knowledge
• ElasticSearch 7.17–8.x knowledge
• Git and GitHub proficiency
• English B2+ for international teamwork

Responsibilities

• Design, implement, and deliver high-quality software solutions
• Translate business and technical requirements into clean, efficient code
• Develop, test, and maintain application modules and services
• Apply clean code standards and performance optimization best practices
• Participate in code reviews, unit, and integration testing
• Collaborate with technical leads, clients, and cross-functional teams
• Document processes and share knowledge effectively

Skills

Analytical mindset

Problem solving

Strong communication

English proficiency (B2+)

Tools

Java

Neo4j

Spring

Spring Boot

Angular

OracleDB

PostgreSQL

Jenkins

Docker

GitHub

Job description

Sopra Steria Polska is seeking a Senior Software Engineer (Java + Neo4j) to join a multinational team in Katowice for a major aeronautical project. You will design and deliver robust software in a stable industrial environment with colleagues across France, Poland, Canada and India.

Eligibility requires EU citizenship, residence in Poland, and willingness to commute to Katowice. The role involves hands-on development with Java 11/8–21, Spring, Spring Boot, Angular, OracleDB and PostgreSQL, plus