Tamas Deak

Starting at FlyRank AI as an intern, focusing on Backend AI Engineering - Complete hands-on assignments on LLM applications, AI agents, and workflow automation. - Participate in technical webinars and mentoring sessions on AI engineering and software development. - Complete Anthropic certification courses.

- Maintained and enhanced the backend of an e-commerce platform for travel products. - Improved code quality, stability, and performance. - Collaborated with product and frontend teams; in an Agile/ SCRUM environment. - Technologies include Kotlin, Spring Boot, REST APIs, PostgreSQL DB, AWS cloud k8s

- Led a technical team to develop and migrate data-driven automated tests for core billing systems. - Developed backend for Ericsson Customer Acceptance (ECA) application using Kotlin, Spring Boot, PostgreSQL, and Corda R3 blockchain. - Stabilized production environments and resolved complex performance bottlenecks for international telecom clients. - Provided expert-level support during go-live events, specializing in Java-based customer care and finance modules. - Delivered key technical support for T-Mob

Project: Automated Testing / Tech Lead (Apr 2023 – Apr 2025 & Aug 2019 – Sep 2020) Led a technical team to develop and migrate data-driven automated tests for core billing systems (CBEV, Ericsson Billing). Designed and implemented test suites using Python, Robot Framework, and the ESSVT framework. Introduced prototype AI-assisted test-case ideas for future adoption. Project: ECA (Ericsson Customer Acceptance) / Blockchain Backend (Jul 2021 – Mar 2023) Developed the backend for the ECA (Ericsson Customer Acc

Developed and maintained core billing system modules using C/C++, Java, and Oracle DB. Improved system performance and reliability for telecom clients across Europe. Collaborated with cross-functional teams to deliver new features and resolve critical issues.

Developed and supported Sema Vision, an advanced telecom billing solution deployed for selected clients prior to the company’s acquisition. Worked with Forte, a distributed scripting language enabling rapid deployment and failover across multiple servers—an innovative approach before Java became mainstream. Contributed to system reliability and scalability, ensuring seamless billing operations for telecom customers. Collaborated in a pioneering environment that later merged into LHS, shaping the evolution o

Developed and maintained check-in software for Lufthansa, running on Unisys mainframes using FORTRAN and hierarchical databases. Implemented the baggage reconciliation process, ensuring only the baggage of boarded passengers remained on the aircraft and automating the unloading of baggage for those who missed their flight. This solution improved operational efficiency and enhanced passenger safety during the boarding process.