Seyma Kotan

Software Engineer with over 4 years of experience developing scalable, enterprise-grade solutions using Java, Spring Boot, and Angular.
Expert in microservice architecture, API development, and CTI/IVR telephony systems, delivering robust software that aligns with complex business goals.
Dedicated to applying SOLID principles, design patterns, and performance optimization to build reliable and maintainable codebases.
Proven track record of leading and contributing to projects throughout the software development lifecycle (SDLC) in Agile environments.
Recognized as a collaborative and adaptable team player, passionate about innovation, high-quality engineering, and measurable impact in every project delivered.

• 01/05/2024 Successful Projects & Additional Responsibilities Turkcell Superiz Award
• 01/11/2023 Customer Experience Innovation Award Turkcell Superiz Award
• 01/11/2022 Successful Projects & Additional Responsibilities Turkcell Superiz Award
• 01/08/2021 Successful Projects & Additional Responsibilities Turkcell Superiz Award
• 01/03/2021 Samsung Innovation Campus, Third Place in IOT Competition Samsung

Call UserData Project

Built a 4-module CTI system as a local alternative to Avaya, improving call transfer performance and  data persistence. Utilized Apache Ignite, TSAPI, Prometheus + Grafana, and Elasticsearch + Kibana for real-time  monitoring and reporting. Developed with Java Spring Boot, achieving modular, maintainable architecture

Outbound Service Regeneration

Migrated .NET outbound services to a Java microservice architecture using Spring Boot. Designed a reusable core library, increasing development efficiency and code consistency across  teams. Applied SOLID principles and Maven modularization for maintainable, versioned  deployment.

Real-time Call Operations Platform

Developed a Digital Twin web app using Core Java, Angular, and Spring Boot for live call  monitoring and intervention. Implemented WebSocket, Redis, Prometheus + Grafana, and Elasticsearch + Kibana for real-time  analytics and visualization. Enabled agents to manage multiple customer interactions simultaneously, improving operational  efficiency.

PowerBase ORM

Created a custom ORM framework on Cassandra, inspired by Apache Cayenne, integrated into IVR  libraries. Enhanced query performance and scalability for telephony data systems

Cassandra JDBC Driver

Developed a custom JDBC driver for WebSphere–Cassandra integration. Solved compatibility issues due to lack of DataStax Maven support.

Menu Manager

Built a Java Spring + Angular IVR management system with Azure integration and Keycloak  authentication. Automated IVR menu creation, deployment, and monitoring using Elasticsearch + Oracle reporting

Model Grammar Control Application

Engineered a full-stack app with Angular + Spring Boot to manage grammars, intents, and utterances. Automated model training and backup with scheduler pipelines; applied Keycloak for security. Empowered IVR teams with streamlined grammar tagging and model management tools.

STT Management Application

Designed a speech-to-text sentiment analysis platform using Angular + Spring Boot + Elasticsearch. Improved  speech model accuracy and customer insight generation across IVR teams

• 03/2021 – 06/2021 TEI Aviation Engines School Participating Student
• 11/2020 – 05/2021 Samsung Inovasyon Campus