Liviu Andrei Biur

Senior Backend Engineer owning end-to-end architecture, delivery, security and mentoring in a fully remote environment. Experienced in designing scalable systems, driving features from requirements to production, ensuring high code quality through testing and reviews, leading incident investigations, and maintaining compliance standards. Strong focus on clean architecture, system reliability, and continuous improvement using modern tooling and best practices.

• Implemented backend features for a pharmaceutical platform using Hexagonal Architecture and Domain-Driven Design (DDD) principles; • Researched, designed, and implemented the application’s Audit Log system; • Contributed to technical design and architectural decision-making processes; • Mentored and supported junior engineers, fostering technical growth and best practices; • Technologies used: Kotlin, Java, Spring Boot, PostgreSQL, ElasticSearch, Kibana, Docker, SonarQube, GitLab, Maven, Swagger, Postman;

• Developed new REST Microservices using Spring Boot and Apache Camel and integrated with external services for a ticketing system; • Worked on Swagger API and auto-generated documentation for all REST calls; • Actively contributed to weekly development meetings, proposing technical solutions and reviewing architectural decisions; • Technologies used: Java, Spring Boot, Apache Camel, MongoDB, Lombook Library, Kubernetes, Docker, SonarQube, Kibana, Jaeger, GrayLog, GitLab, Maven, Swagger, Postman, Robo 3T;

• Worked in Scrum methodology with sprints every 2 weeks – using JIRA to manage the epics/stories; • Developed new features on a Cyber Security software; • Developed new REST web service including the documentation; • Performed unit and integration testing for the developed code; • Researched an optimal user case for new software features; • Reviewed the colleagues' code using Gerrit; • Involved in system testing and defect resolution;

• Analyzed and resolved user-reported problems; • Developed web application management for bank loans; • Involved in system testing and defect resolution; • Managed - for 3 months - the customer service team; • Back-End technologies used: Java 7, Spring Framework, Oracle and Hibernate; • Front-End technologies used: IceFaces, JQuery; • Trained and induction for the new colleagues;

• Modified the existing software based on change request in telecom field; • Analyzed and resolved user-reported problems;

• Modified the existing software; • Developed presentation website; • Linux Server Administrator (Debian and RedHat distributions); • Created table and manipulated data using PostgreSQL; • Technologies used: PHP, VMWare and VirtualBox;