# Software Engineer Java / Spring Batch

> iKnowHow S.A. · Gerakas, Greece (Hybrid) · — · Posted 2026-05-27

**Workplace:** hybrid

**Department:** NBG

## Description

**iKnowHow Group** is a dynamic, international technology company with 24+ years of experience and a team of 300+ talented professionals delivering innovative technology solutions across Energy, Telecommunications, Banking & Financial Services, and the Public Sector.  
  
Through its specialized subsidiaries, it brings domain expertise in areas such as Health and Robotics—blending deep industry knowledge with advanced, future-ready technologies.  
  
At its core, **iKnowHow S.A.** delivers end-to-end project development - both internal and client-facing - turning strategy into scalable, real-world solutions. Our portfolio spans Data & AI platforms, enterprise integration, cloud-native applications, and large-scale digital transformation initiatives, enabling leading organizations across the public and private sectors to evolve and grow.

We’re looking for curious, driven people who want to create impact through technology—and grow with us.

We are now looking for a talented and skilled **Software Engineer Java / Spring Batch** to join our team and contribute to the delivery of complex, large-scale outsourced projects.

**Responsibilities:**

-   Design and develop Spring Batch applications for large-scale data and transaction processing
-   Build and optimize batch jobs for high-volume processing and reconciliation workflows
-   Develop ETL and data transformation pipelines integrated with core banking and enterprise systems
-   Transform business and technical requirements into robust, scalable functionalities
-   Ensure alignment of solutions with architectural standards and client requirements
-   Implement integrations with, core banking systems, external payment networks (e.g., SWIFT, DIAS), databases and file-based interfaces, internal enterprise services and reporting platforms.
-   Implement and maintain scheduling, monitoring, restartability, and fault-tolerant mechanisms
-   Participate in the modernization of legacy batch systems into modular, scalable architectures
-   Collaborate closely with architects, analysts, DevOps, and integration teams
-   Support deployment processes and configuration management activities
-   Contribute to performance optimization and troubleshooting of batch execution flows

## Requirements

-   3–5 years of experience in Java development
-   Strong expertise in Spring Boot and Spring Batch
-   Solid understanding of batch processing concepts, transaction management, error handling, and restart/recovery mechanisms
-   Experience with performance optimization for high-volume processing
-   Proficiency in SQL and relational databases (Oracle/PostgreSQL)
-   Hands-on experience with file processing (CSV, XML, fixed-width formats)
-   Familiarity with microservices architecture, REST APIs, and integration patterns
-   Understanding of distributed systems and data consistency
-   Experience with scheduling tools (e.g., Control-M)
-   Familiarity with Git, CI/CD pipelines, and container platforms (OpenShift/Kubernetes)
-   Exposure to event-driven architectures (Kafka is a plus)
-   Ability to analyze, debug, and enhance existing codebases independently

**Nice to have:**

-   Experience with AI-assisted development tools

## Benefits

-   Flexible hybrid working model, working both from the office & remote #LI-Hybrid

-   Career development and growth opportunities.
-   Medical plan and life insurance for you and your family.
-   Continuous training & learning opportunities via personalized seminars.
-   The opportunity to work in a diverse environment with talented colleagues

## Apply

[Apply at iKnowHow S.A.](https://apply.workable.com/ikh/j/706A8C3F63/apply)

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