Software Developer in Ankara, Turkey

City of the Future is a visualization dashboard for smart cities. It ingests IoT data from various sources, such as devices, sensors, vehicles, or other information systems. At its core, a context broker provides CRUD services on such data. Furthermore, an admin module manages user-specific metadata such as map, page, layer, query, and visualization configurations.

City of the Future visualizes the contextual data both on a map and on panels containing several types of charts.

I'm one of the main front-end developers using Angular. Regarding the back end, I developed the admin module using Scala and contributed to the implementation of some of the query services executed on a time-series database, specifically TimeScale DB.

NIMBLE is a platform combining eCommerce and B2B modalities. One on hand, it provides product listing and product and company discovery features. On the other hand, it automates B2B interactions throughout the supply chain regarding information inquiries about products and production processes, negotiation, ordering, fulfillment, and logistics planning.

NIMBLE has a microservice-based cloud architecture built on Netflix OSS. NIMBLE contains modules for catalog management, business process automation, and user management. The front end is developed with Angular framework accompanied by Bootstrap, and the back end is developed with Java and Spring Boot technologies.

I was the lead developer of functional back-end components for the catalog's management, business process automation components, and the user interface of the platform.

Stanbol is a retired Apache project composed of a set of reusable components for semantic content management. It contains modules to extract structure semantic information, manage ontologies that are used as a basis to extract semantic knowledge, and store extracted knowledge. Stanbol is an OSGi-based multi-module software built mainly using Java. Its basic user interface is implemented with the FreeMarker technology.

I took part in the configuration of engines that extract domain-specific entities (e.g., drugs, diseases, and side effects related to the health domain) from unstructured content by preparing ontologies describing the domain-specific knowledge. I was also the main developer of two Stanbol modules, namely CMS Adapter and Content Hub.

CMS Adapter connects to CMIS and JCR compliant content management systems (CMS). It fetches content managed inside such systems to process them in Stanbol to extract additional semantic information. It is also able to push the extract semantic information back into the CMS.

Content Hub indexes RDF-based semantic information in Apache Solr. It provides a querying and faceted search functionality.

SecondLife is a B2C eCommerce platform for selling second-hand products. I was the developer of the front end. I adapted the Angular Multikart template based on the project's requirements, mainly related to product-listing, shopping cart, checkout process, product and company ratings, user profile, and user management. I achieved a very high coverage on front-end unit tests and E2E tests.

The Case Series Characterization Tool allows medical researchers to explore common health parameters such as conditions, problems, and medications that occur in a patient population satisfying particular criteria (e.g., patients with diabetes).

The tool offers features to define eligible criteria to fetch the targeted patient population, gather patients' data from underlying electronic health records (EHR) systems, and transform the source content to a common format that is used to harmonize heterogeneous EHR formats. The tool further visualizes the results and determines which common parameters in the population can easily be observed by the researchers.

I developed the whole software:
• The front end using Backbone and Marionettes frameworks, including screens for eligibility query definition and graphical common health parameter visualization.
• The back end using Java accessed via REST services.
• Adapted global healthcare standards to represent healthcare data and code systems to annotate eligibility queries.
• Scripts mapping source data from EHR data in a proprietary format to the common data model in RDF format.

eDoCreator is a web application for curating electronic business documents—compliant to the Universal Business Language (UBL) standard—exchanged between trading companies throughout a supply chain. I was the main developer in a team of four developers.

eDoCreator was able to manage documents sets that are curated for specific purposes. The application contained modules to display and edit data entities in varying granularities, e.g., fine-grained data types and complex documents (such as requests for quotations or orders used during purchasing). It also included modules to compare and visualize differences between documents and export them to Word or Excel formats.

eDoCreator was built using Apache Flex on the front end and Java on the back end. Information managed by the application is maintained in a relational database (MySQL).