Senior Java Backend Engineer*

SIX payment services; Wien; Híbrido; EUR 47 000 - 57 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Office near Vienna Central Station

BAWAG Academy training program

GoodHabitz elearning platform

Diverse benefits

Resumo da oferta

BAWAG Group in Vienna seeks a Senior Java Backend Engineer to own core banking services, modernise existing systems, and drive AI-enabled production tooling while maintaining auditability.

You will work with Java, Spring Boot, OAuth2/OpenID, and Keycloak in a hybrid on-prem/Azure setup, with Jenkins and Nexus for CI/CD and artifact management.

Qualificações

• 7+ years of professional Java backend development.
• Strong Spring Boot, REST API design, and microservice architecture experience.
• Solid grasp of OAuth2, OpenID Connect, and Identity & Access Management (Keycloak).
• Experience with PostgreSQL or comparable relational databases.
• Comfortable with Docker, Git, Maven or Gradle, and CI/CD pipelines.
• Experience delivering software in a regulated environment (banking/fintech).

Responsabilidades

• Design, build, and maintain backend services in Java and Spring Boot — REST APIs, microservices, event-driven integrations.
• Take ownership of existing services: modernise them, harden them, and close technical and regulatory findings.
• Secure API integrations using OAuth2, OpenID Connect, JWT, and Keycloak.
• Build and operate services across hybrid on-prem and Azure with Jenkins pipelines and Nexus.
• Develop AI-supported workflows — agentic API automation with security and auditability.
• Own quality: automated tests, meaningful observability, and production support.
• Work directly with Product, QA, DevOps, Architecture, Security, and Business.

Conhecimentos

Java backend

Spring Boot

REST API design

Microservice architecture

OAuth2 / OpenID Connect

Keycloak

PostgreSQL

Docker

CI/CD pipelines

Regulated environment

AI integration interest

Ferramentas

Jenkins

Nexus

Azure

Azure OpenAI

Azure AI Document Intelligence

Kubernetes

Descrição da oferta de emprego

Senior Java Backend Engineer*

BAWAG Group is the listed holding company of BAWAG, one of Austria´s largest banks with more than 4 million customers.
As a dynamic employer, we promote talent and drive technological innovation forward at a rapid pace.
Flat hierarchies, a flexible working environment and equal opportunities for our employees are particularly important to us.

We are looking for a senior Java backend engineer to take ownership of core banking services - systems that are supervised and audited.

This is not a greenfield-only role. You will take over and modernise existing services, strengthen API security, and make our platforms audit-defensible under regulatory scrutiny. Alongside that, you will help us bring AI into production the right way: document intelligence and API-driven automation that meet the same security, traceability, and compliance bar as everything else we ship.

If you want to build things that survive an audit and work with modern AI tooling, this is the role.

Your Responsibilities

• Design, build, and maintain backend services in Java and Spring Boot -- REST APIs, microservices, event-driven integrations
• Take ownership of existing services: modernise them, harden them, and close technical and regulatory findings
• Secure API integrations using OAuth2, OpenID Connect, JWT, and Keycloak
• Build and operate services across our hybrid on-prem and Azure landscape, deployed through Jenkins pipelines with all artifacts sourced from our internal Nexus registry
• Develop AI-supported workflows -- agentic API automation -- with the security, auditability, and data-protection controls a regulated bank requires
• Own quality: automated tests, meaningful observability, and production support for what you build
• Work directly with Product, QA, DevOps, Architecture, Security, and Business -- not through layers

Your Profile

• 7+ years of professional Java backend development
• Strong Spring Boot, REST API design, and microservice architecture experience
• Solid grasp of OAuth2, OpenID Connect, and Identity & Access Management (Keycloak or equivalent)
• Experience with PostgreSQL or comparable relational databases
• Comfortable with Docker, Git, Maven or Gradle, and CI/CD pipelines
• Experience delivering software in a regulated environment -- banking, fintech, insurance, healthcare, or public sector. You know what change control, four-eyes approval, and an audit finding actually mean in practice.
• The judgement to work independently and the discipline to document decisions
• Genuine interest in applying AI to enterprise problems -- and the instinct to ask how it fails before shipping it
• {LANGUAGE -- e.g. English required; German an advantage for stakeholder work}

Senior scope and expectations

• Own architecture decisions for critical backend services, balancing delivery speed with security, resilience, and auditability.
• Lead technical design reviews and guide implementation standards across teams.
• Mentor engineers through code reviews, pairing, and structured feedback.
• Take operational ownership in production: incident leadership, root-cause analysis, and prevention actions.
• Drive cross-team delivery by aligning Product, Security, DevOps, and Architecture on technical trade-offs.
• Improve engineering maturity: documentation quality, test strategy, observability standards, and secure SDLC practices.

Nice to have

• Azure services, particularly Azure OpenAI or Azure AI Document Intelligence
• Kubernetes, API gateways, monitoring and observability tooling
• Hands-on work with RAG pipelines, LLM integration, or agent frameworks (Semantic Kernel, LangChain, or similar)
• Messaging and event streaming (Kafka or equivalent)
• Experience with securities, payments, or lending domains

Tech stack

Java · Spring Boot · REST · Microservices · PostgreSQL · Keycloak · OAuth2/OIDC · Docker · Jenkins · Nexus · Azure · Azure OpenAI · Azure AI Document Intelligence

Our Offer

• You will spend 50% of your working time in our modern and easily accessible office at Vienna Central Station.
• We support your personal development and career planning with an individual and attractive training program. Visit our BAWAG Academy and use our GoodHabitz elearning platform for both your professional and personal growth.
• In addition, we offer a range of interesting and valuable additional benefits.

For this position, the collective agreement stipulates a minimum annual gross salary of EUR 51.947,84 on a full-time basis. Depending on your experience and qualifications, we are willing to offer a higher salary.

Your contact person: Jutta Durstberger [phone]

• We value people.

Would you like to work in a team where good cooperation and diversity are actively practiced? Then you've come to the right place. Equal opportunity is important to us - regardless of age, gender, sexual orientation, physical impairment, religion or origin.

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