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We are seeking a skilled Java Back-end Developer to build and deliver robust software modules that facilitate seamless integration for modern web services hosted on our z/OS mainframe environment. This role is crucial for bridging traditional enterprise data with contemporary application needs, focusing on high performance, security, and observable systems.

 

Vaša vloga in odgovornosti

  • Software Module Delivery: Design, develop, test, and deploy Java-based backend integration modules that meet business requirements and technical specifications.

  • API Development & Integration: Build and manage highly secure APIs for both internal consumption and integration with off-platform services, implementing modern authentication mechanisms such as JWT (JSON Web Tokens) and the Bearer Token scheme, utilizing JSON as the primary data interchange format.

  • z/OS Application Server Management: Deploy and maintain web services within a WebSphere Application Server (WAS) Liberty profile environment on z/OS.

  • Database Integration: Develop efficient data access layers to interact with foundational mainframe data sources, leveraging VSAM files and DB2 relational databases. This includes experience interfacing with data exposed via modern NoSQL approaches, such as key-based lookups or document-based storage patterns.

  • Security Implementation: Implement strong authentication and authorization controls using Enterprise Security Managers (ESMs) such as RACF, ACF2, or TopSecret.

  • Observability & Monitoring: Integrate monitoring and tracing capabilities into all services using OpenTelemetry standards to ensure system health and performance are fully observable.

  • Collaboration: Work closely with front-end developers, mainframe systems programmers, and data engineers to ensure end-to-end functionality and reliability

  • The ideal candidate would have a strong technical aptitude and a flair for picking up new skills 

  • The role provides ample opportunity for learning and career growth and is only constrained by the individual’s appetite for learning

 

Zahtevana izobrazba
Diploma prve stopnje
Zaželena izobrazba
Magisterij
Zahtevano strokovno in tehnično znanje

  • 8+ years of IT experience

  • Java Expertise: Deep proficiency in Java back-end development, including experience with modern frameworks, best practices for building scalable enterprise applications, clean coding principles, and the ability to identify and resolve code smells through refactoring.

  • API & Web Services: Extensive experience designing and implementing RESTful web services and working with APIs, including understanding secure API communication protocols, JWTs, Bearer token authentication flows (e.g., OAuth 2.0), and working with JSON data formats.

  • z/OS Environment Knowledge: Familiarity with the z/OS operating system, JCL, and deploying applications within a mainframe context.

  • Database Connectivity: Experience connecting to and manipulating data within mainframe data stores (VSAM, DB2, potentially IMS).

  • Security Fundamentals: Strong grasp of application security principles, Security by Design methodologies, experience leveraging OWASP guidelines for secure coding practices, and hands-on experience integrating with ESMs like RACF for identity and access management.

  • Application Servers: Practical experience administering or developing on IBM WebSphere Application Server (WAS) or specifically WAS Liberty profiles.

  • Observability Tools: Experience implementing monitoring and tracing using OpenTelemetry or similar industry-standard tools (e.g., Prometheus, Grafana, Jaeger). 

 

Zaželeno strokovno in tehnično znanje

  • Regulatory Compliance: Preferred experience working with regulatory security and compliance frameworks and requirements (e.g., PCI-DSS, GDPR, HIPAA, SOX) in a development context.

  • Data Modernization: Specific experience with solutions that expose non-relational mainframe data (like VSAM) as modern NoSQL, key-based, or JSON-accessible endpoints is a major plus.

  • Mainframe Databases: Experience with other core mainframe databases such as IBM DB2 or IBM IMS.

  • Modern DevOps Practices: Familiarity with CI/CD pipelines, Git, and automated testing in a mainframe-adjacent environment.

  • Scripting: Knowledge of REXX or Python for automation tasks within the z/OS environment

 

O poslovni enoti

Programska oprema IBM oskrbuje osnovne poslovne operacije z inteligenco – od strojnega učenja do generativne umetne inteligence, kar pomaga organizacijam, da so odzivnejše, produktivnejše in odpornejše. IBM-ova programska oprema pomaga naročnikom, da umetno inteligenco začnejo uporabljati takoj, da ustvarijo resnično vrednost z zaupanjem, hitrostjo in samozavestjo na področju digitalnega dela, avtomatizacije IT, posodobitve aplikacij, varnosti in trajnosti. Ključnega pomena pri tem je zmožnost uporabe vseh podatkov, saj je umetna inteligenca tako dobra, kot so dobri podatki, ki jo podpirajo. V večini organizacij so podatki razpršeni v več oblakih, v prostorih, zasebnih podatkovnih centrih in na robu. IBM-ova platforma za umetno inteligenco in podatke razširja in pospešuje vpliv umetne inteligence z zaupanja vrednimi podatki ter zagotavlja vodilne zmogljivosti za usposabljanje, prilagajanje in razmestitev umetne inteligence v podjetjih. IBM-ova platforma hibridnega oblaka je eden najbolj celovitih in doslednih pristopov k razvoju, varnosti in delovanju v hibridnih okoljih – prilagodljiva podlaga za izkoriščanje podatkov, kjerkoli se nahajajo, za razširitev umetne inteligence globoko v poslovanje.

Življenje v IBM-u

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you’ll be able to learn and develop yourself and your career, you’ll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

 

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

 

Are you ready to be an IBMer?

O IBM-u

IBM’s greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

 

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we’re also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business. 

 

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it’s time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Podrobnosti o drugem ustreznem delovnem mestu

When applying to jobs of your interest, we recommend that you do so for those that match your experience and expertise. Our recruiters advise that you apply to not more than 3 roles in a year for the best candidate experience. For additional information about location requirements, please discuss with the recruiter following submission of your application.