Senior Software Engineer - Java at Identpro GmbH (2023-10 – Present)
- Contribute to architecture and development of Java/JEE-based WMS solutions, owning design decisions and sprint planning; perform code reviews enforcing quality and standards.
- Built OpenAPI-spec'd REST/JAX-RS services secured with OAuth2 and integrated with the SAP WMS platform.
- Implemented MQTT-based real-time event handling between Spring Boot and JEE apps, processing scanner and forklift events across a modular architecture.
- Resolved PostgreSQL CPU saturation (100% load) via root-cause analysis of index bloat — reindexing cut CPU utilisation by 60% and significantly improved query response times.
- Designed and delivered full conveyor tracking and truck load/unload system for Asahi Breweries (Czech Republic) — handling 200+ truck operations daily.
Java Full-Stack Developer at SAP (2020-12 – 2023-06)
- Developed and debugged server-side features for SAP Fieldglass using Java 17, Hibernate, JEE, and MSSQL; built UI components in JSP and JavaScript.
- Collaborated with product managers and cross-functional teams to translate requirements into working software.
- Mentored 4 junior developers through code walkthroughs, establishing team development standards.
- Resolved 400+ SAP Fieldglass production issues and feature requests on schedule, consistently meeting sprint commitments across a large enterprise codebase.
Staff Engineer — Java Backend at Deloitte (2018-05 – 2020-12)
- Key contributor to migration of legacy IBM mainframe utilities (innoWake) to modern Java; implemented Testcontainers integration test suites validating parity via TDD.
- Designed and built end-to-end internal e-Learning platform: Spring Boot REST backend with React.js frontend.
- Received multiple company awards for delivery performance as migration engineer, for cross-country coordination & mentoring.
Programmer Analyst — Java Full-Stack at Singapore Infotech (2016-09 – 2018-04)
- Built supply chain automation software using Java, Spring, Hibernate, JSF, and MySQL.
- Partnered with business analysts to deliver backend features on time with high reliability.
- Improved shipping module throughput by 85%. Eliminated redundant DB calls & restructuring data access logic using collections.