Java Developer

1 Month ago • All levels

Job Summary

Job Description

You will participate in a project that modernizes one of T-Mobile's key systems from oldschool technologies and monolithic architecture to modern technologies built on microservices and containers. You will be involved in the design of technologies and the target architecture, you will drive this transformation. You will work with a team of people from the customer and a team from Ness, which implemented the original solution. You will be 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, 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 migrating Java versions (e.g., Java 8 → Java 17/OpenJDK).
  • Experience with transitioning application servers and databases.
Good to have:
  • Experience with the design of microservices architectures.
  • 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 (hard skills, soft skills, language courses) and obtaining certifications.
  • Formal and informal events - competency meetings, sports competitions, team building or events for children and employees' families.
  • 20 days of vacation + 5 Ness days
  • 3 Sick days.
  • Contribution to the Multisport card.
  • Mobile phone with an unlimited tariff and 25 GB of data, also for private purposes.
  • Partnership benefits - you can draw these benefits and discounts continuously and unlimitedly (from sports, through culture, wellness to a discount on a new car).
  • Contribution to pension insurance.
  • Meal allowance.
  • Language teaching.
  • Development of Hard and Soft skills.

Job Details

Pojď se účastnit 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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