Data Science, Data Integration, APIs

Specialized in API design and implementation, with experience in SaaS product design, system architectures, and prototype development for innovative solutions. Expertise in API design and development, event-driven architecture, CQRS, ETL pipelines, and cloud architectures.

Projects:

• Event Sourcing, CQRS for Knowledge-Management SaaS Startup

• Built software architecture for Knowledge-Management SaaS

• Designed event sourcing-based data structure

• Designed and implemented data structure for highly connected graph data

• Developed serialization tool for graph data

• Implemented backend/API

• Documented with C4 Model

• Technologies: REST, CQRS, Event Sourcing, Event-driven Architecture, Laravel, GitLab CI/CD, JSON-API, Stoplight Studio, SQL, Docker, C4 Model

• API-first SaaS Product Design and Development

• API-first product design (OpenAPI 3, HAL) and development (NodeJS)

• Built DevOps pipelines with Github Actions in AWS architecture

• Technologies: OpenAPI 3, REST, HAL, NodeJS, Javascript, Typescript, AWS, AWS Lambda, Docker, Github Actions

• Consulting Project for Distributed Ledger in Automotive Supply Chain

• Compared Distributed Ledger/Blockchain technologies

• Designed business processes and their integration into DL technology using BPMN

• Designed system architecture

• Technologies: BPMN

• Web-based Platform for ERP Workflow Mapping

• Created web-based platform for workflow mapping on touchscreen terminals in manufacturing for an ERP software manufacturer

• Focused on low maintenance and training costs through simplified integration of SQL-driven logic from existing solution stack

• Trained developers and ERP project managers

• Provided ongoing support as needed

• Technologies: SQL / T-SQL, Microsoft SQL Server, React, NodeJS, REST, JSON, JSON Schema, YAML

• Integration of Urban BEV Charging Stations and Data Collection in Apache Kafka

• Connected urban BEV charging stations and collected charging data in Apache Kafka (ETL pipeline)

• Technologies: Apache Kafka, Python, REST, OCPP (Open Charge Point Protocol)

• Technical Concept Paper for Green Electricity Usage Incentivization

• Coordinated with relevant stakeholders

• Developed user stories

• Built evaluation schema for describing non-functional aspects

• Created evaluation schema for technology selection

• Prototype for Green Electricity-based Control of Switchable Socket

• Created prototype for green electricity-based control of a switchable socket

• Designed and developed smart contract for Ethereum blockchain

• Technologies: Solidity (Ethereum), NodeJS, Python

• Created SHACL definition for UI generation for a SKOS editor
• Evaluated Stardog's Virtual Graph feature with R2RML mappings for relational databases
• Developed software to extract measurement and metadata from legacy systems as part of an ETL pipeline
• Developed software to generate measurement reports from RDF data
• Technologies: RDF, Java, Python, Jira, SHACL, SPARQL, Jekyll-RDF, SKOS, Stardog, R2RML, RDF/JSON, triplestore
• Methodology: Kanban