Senior Java Software Engineer

Solid.jobs — Poland · Posted ~1 day ago

Senior Contract 23500-30200 PLN per month (B2B)

Skills

Java Backend Development Cloud-Native Architecture Enterprise Application Design Microservices API Development System Architecture Performance Optimization Scalability Software Testing Team Leadership Mentoring Cloud-Native APIs Backend Systems

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Summary ✨ AI‑Generated

Lead the design, development, testing, and optimization of large-scale backend systems for the travel and transportation sector. You will build mission-critical services and APIs using Java, contribute to cloud-native architecture, shape system design, and ensure performance, reliability, and scalability. The role includes technical leadership, mentoring other developers, and participation in a culture focused on engineering excellence.

Highlights

Lead development of large-scale backend systems serving millions of users, shape architecture, optimize performance and reliability, mentor developers, and work with modern cloud-native technologies.

Description

Senior Java Developer 23500-30200 PLN miesięcznie (B2B) Infolet Czym będziesz się zajmować? PROJECT We are looking for a Senior Java Developer with 7+ years of experience to join our high-performing team developing modern, large-scale backend systems for the travel and transportation industry. If you have a strong background in Java development, cloud-native architecture, and enterprise-grade application design, this is your opportunity to take part in building the technology behind global travel experiences. As a Senior Java Developer, you will lead a team to design, implement, and optimize backend services and APIs that power mission-critical systems used by millions of travelers worldwide. You’ll play a key role in shaping system architecture, ensuring performance, reliability, and scalability — while mentoring developers and contributing to a culture of engineering excellence. YOUR ROLE Design, develop, test, and debug complex software solutionsDesign and build prototype applicationsResearch best practices, new tools, and technology.Work closely with technical staff to understand problems with software and resolve themWork closely with the Product team to understand business requirementsAssist in the development of software technical documentationSupport SRE in our effort to evolve CI/CD processes and stability Kogo poszukujemy? 📍 Kraków (Hybrid - 2 days office / 3 days remote) MUST HAVE 7–9 years of experience in backend software development.Strong proficiency in Java and related Java EE technologies.Deep knowledge of Spring, Hibernate, and RESTful web services.Solid grasp of OOP principles and design patterns.Experience working with XML and relational databases (Oracle, SQL).Familiarity with Linux-based development environments.Experience with build tools like Ant, Maven, or Gradle.Hands-on experience with Apache Camel and/or ServiceMix.Strong communication and team leadership skills.NICE TO HAVE Experience working in Agile/Scrum development teams.Knowledge of JMS, JBoss, JMX, Drools.Understanding of TDD and experience with JUnit/unit testing. Czego wymagamy? Znajomości: JavaSpringHibernateRESTfulXMLLinuxApacheJęzyki: PolskiAngielski Jakie warunki i benefity otrzymasz? 140-180 PLN godzinowo (B2B)B2B - Elastyczne godziny pracy (100%)16300-19800 PLN miesięcznie (Umowa o pracę)Umowa o pracę - Elastyczne godziny pracy (100%)Praca zdalna: Możliwa częściowoSzkolenia wewnętrznePakiet medyczny, Ubezpieczenie, Pakiet sportowyKawa / HerbataParking rowerowyPakiet relokacyjny Gdzie będziesz pracował? Miłkowskiego, Kraków lub hybrydowo Kim jesteśmy? Od 20 lat wspieramy liderów IT, dostarczając technologie, ekspertów i pełne wsparcie operacyjne - w tym legalizację pobytu i pracy międzynarodowych specjalistów IT Do naszych projektów poszukujemy specjalistów Java, JavaScript, C embedded, C++, PHP, specjalistów od mobile, testerów oprogramowania, administratorów sieci i systemów i wielu innych.