Java Developer

3 Months ago • All levels • Programming

Job Summary

Job Description

The job involves participating in a project to modernize T-Mobile's key systems using modern technologies such as microservices and containers. You will be involved in the design of technologies and the target architecture, driving this transformation. Responsibilities include upgrading applications from Oracle Java to a higher version of OpenJDK, preparing applications for microservices and their operation in a Kubernetes cluster, migrating application servers from JBoss to WildFly, collaborating on the transition from Oracle DB to PostgreSQL, and ensuring security using SAML and OAuth2.
Must have:
  • Excellent knowledge of Java and the Spring framework
  • Experience with Kubernetes (application deployment, migration to containers)
  • Knowledge of JSP, XHTML/JSF, Hibernate
  • Experience with Java version migration (e.g., Java 8 → Java 17/OpenJDK)
  • Experience with application server and database transition
Good to have:
  • Experience with microservices architecture design
  • Knowledge of security protocols (OAuth2, SAML)
  • Independence, a desire to improve things and learn new technologies
Perks:
  • Friendly and professional work environment
  • Support for personal development and certifications
  • Formal and informal events
  • 20 days of vacation + 5 Ness days (increasing with tenure)
  • 3 Sick days
  • Contribution to Multisport card
  • Mobile phone with unlimited tariff and 25 GB of data
  • Partner benefits and discounts
  • Contribution to pension insurance
  • Meal allowance
  • Language learning
  • Hard and Soft skills development

Job Details

Pojď se zúčastnit projektu, který modernizuje jeden z klíčových systémů společnosti T-Mobile z oldschool technologií a monolitické architektury do moderních technologií postavených na mikroslužbách a kontejnerech.
 
Budeš se podílet na návrhu technologií i cílové architektury, budeš drivovat tuto transformaci. Pracovat budeš s týmem lidí od zákazníka i týmem z Nessu, který implementoval původní řešení.
 
Co budeš dělat?
 
  • Upgradovat aplikace z Oracle Java na vyšší verzi OpenJDK.
  • Připravovat aplikace na mikroslužby (microservices) a jejich provoz v Kubernetes clusteru.
  • Migrovat aplikační servery z JBoss na WildFly.
  • Spolupracovat na přechodu z Oracle DB na PostgreSQL.
  • Zajišťovat bezpečnost pomocí SAML, OAuth2.
 
Co od tebe očekáváme?
 
  • Výbornou znalost Java a frameworku Spring.
  • Zkušenosti s Kubernetes (nasazování aplikací, migrace do kontejnerů).
  • Znalost JSP, XHTML/JSF, Hibernate.
  • Praxi s migrací Java verzí (např. Java 8 → Java 17/OpenJDK).
  • Zkušenosti s přechodem aplikačních serverů a databází.
 
Bonusové body za:
 
  • Zkušenost s návrhem microservices architektur.
  • Znalost bezpečnostních protokolů (OAuth2, SAML).
  • Samostatnost, chuť zlepšovat věci a učit se nové technologie.

Co ti v Nessu nabídneme:
 
  • Přátelské a zároveň profesionální pracovní prostředí, protože lidé si u nás pomáhají a důvěřují.
  • Podporu osobního rozvoje (hard-skills, soft-skills, jazykové kurzy) a získávání certifikací.
  • Formální i neformální akce (protože se chceme se svými kolegy i bavit) - setkání kompetencí, sportovní závody, teambuildingy nebo akce pro děti a rodiny zaměstnanců.

Těšit se můžeš i na další benefity:
 
  • 20 dní dovolené + 5 Ness day a čím déle u nás jsi, tím víc jich máš.
  • 3 Sick day.
  • Příspěvek na Multisport kartu.
  • Mobilní telefon s neomezeným tarifem a 25 GB dat i pro soukromé účely.
  • Partnerské benefity – tyto benefity a slevy můžeš čerpat stále a neomezeně (od sportu, přes kulturu, wellness až po slevu na nové auto).
  • Příspěvek na penzijní připojištění.
  • Stravenkový paušál.
  • Jazykovou výuku.
  • Rozvoj Hard a Soft skills.
 
Zaujala tě pozice?

Ozvi se nám a pošli CV nebo odkaz na LinkedIn. Rádi si s tebou popovídáme!
 

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About The Company

Established in 2002, Gaijin Entertainment is an award-winning independent video game developer based in the EU. Our main HQ and development center is located in Budapest, Hungary. Gaijin Entertainment considers candidates from all over the world, regardless of citizenship or place of residence. We offer relocation opportunities to one of the countries where our offices are located. Work is possible either from one of our offices or in a remote format.
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