07/24/2026 updated
Premium member
100 % availableSenior Backend Engineer / System Architect | Node.js · TypeScript · Go · .NET · LLM Orchestration
Melissia, Greece
Worldwide
Bachelor of Science in Informatics, Hellenic American CollegeAbout me
Senior backend engineer & system architect, 10+ yrs. Distributed, event-driven systems in Node.js, Go, .NET, Python; API integrations & LLM agent orchestration (production multi-agent platform). B2B, fully remote, EU-based, English-fluent, CET/EET. Fractional architect or senior delivery.
AI AgentsIoTAzure FunctionsAzure DevOpsSupabaseC Sharp (Programming Language)Python (Programming Language)PostgreSQLMongoDBNode.jsPostGISNext.jsSystems IntegrationTypeScriptWebSocket
Full Stack Web Development
Expertise in building end-to-end web applications using JavaScript and TypeScript frameworks including React, NextJS, Vue, Nuxt, NestJS, NodeJS, Express, Fastify, and Loopback, as well as backend technologies such as SpringBoot, Kotlin, Java, Python, FastAPI, and Golang.
Cloud Infrastructure & DevOps
Proficiency in cloud platforms including AWS (ECS, EC2, Lambda, S3, Kinesis Data Streams, Amplify, Elastic Beanstalk) and Azure (App Services, Azure Functions, Azure DevOps, Key Vault, AKS) and GCP (PubSub, Firebase, Cloud Storage), combined with CI/CD pipeline configuration and containerization using Docker and GitHub Actions.
Database & Real-time Systems
Strong command of relational and non-relational databases including PostgreSQL, PostGIS, MongoDB, ElasticSearch, Kibana, MariaDB, MSSQL, and Amazon Timestream, alongside real-time system design using WebSockets, RabbitMQ, MongoDB Watchers, and GIS Event Streams.
Microservices & Event-Driven Architecture
Design and implementation of microservices and event-driven architectures, including orchestration pipelines with Camunda BPMN and IoT integration for distributed provisioning workflows.
GIS & Mapping Technologies
Development of GIS vessel fleet monitoring platforms using OpenLayers and PostGIS, featuring real-time satellite location tracking, meteorological data visualization, and modular multi-map dashboard interfaces.
ORM & Data Access Tools
Hands-on experience with TypeORM, Sequelize, and Prisma for database access and schema management across various project types.
CMS & Third-party Integrations
Integration of third-party services and CMS platforms including Strapi, HubSpot API, Jira Forge Apps, and MinIO for content management, CRM automation, and internal tooling.
AI-assisted Development Tools
Utilization of AI-assisted development tools such as Claude Code and Cursor AI to enhance productivity and code quality.
Healthcare Interoperability (FHIR)
Integration of the FHIR (Fast Healthcare Interoperability Resources) protocol to ensure seamless healthcare data interoperability in health tech applications.
.NET & CLI Development
Construction of .NET 7.0 Command Line Interface tools for tasks such as SharePoint backup to MSSQL and data reconciliation between staging and production environments.
Expertise in building end-to-end web applications using JavaScript and TypeScript frameworks including React, NextJS, Vue, Nuxt, NestJS, NodeJS, Express, Fastify, and Loopback, as well as backend technologies such as SpringBoot, Kotlin, Java, Python, FastAPI, and Golang.
Cloud Infrastructure & DevOps
Proficiency in cloud platforms including AWS (ECS, EC2, Lambda, S3, Kinesis Data Streams, Amplify, Elastic Beanstalk) and Azure (App Services, Azure Functions, Azure DevOps, Key Vault, AKS) and GCP (PubSub, Firebase, Cloud Storage), combined with CI/CD pipeline configuration and containerization using Docker and GitHub Actions.
Database & Real-time Systems
Strong command of relational and non-relational databases including PostgreSQL, PostGIS, MongoDB, ElasticSearch, Kibana, MariaDB, MSSQL, and Amazon Timestream, alongside real-time system design using WebSockets, RabbitMQ, MongoDB Watchers, and GIS Event Streams.
Microservices & Event-Driven Architecture
Design and implementation of microservices and event-driven architectures, including orchestration pipelines with Camunda BPMN and IoT integration for distributed provisioning workflows.
GIS & Mapping Technologies
Development of GIS vessel fleet monitoring platforms using OpenLayers and PostGIS, featuring real-time satellite location tracking, meteorological data visualization, and modular multi-map dashboard interfaces.
ORM & Data Access Tools
Hands-on experience with TypeORM, Sequelize, and Prisma for database access and schema management across various project types.
CMS & Third-party Integrations
Integration of third-party services and CMS platforms including Strapi, HubSpot API, Jira Forge Apps, and MinIO for content management, CRM automation, and internal tooling.
AI-assisted Development Tools
Utilization of AI-assisted development tools such as Claude Code and Cursor AI to enhance productivity and code quality.
Healthcare Interoperability (FHIR)
Integration of the FHIR (Fast Healthcare Interoperability Resources) protocol to ensure seamless healthcare data interoperability in health tech applications.
.NET & CLI Development
Construction of .NET 7.0 Command Line Interface tools for tasks such as SharePoint backup to MSSQL and data reconciliation between staging and production environments.
Languages
EnglishFluent
Project history
Advanced to System Architect within the same team, assuming complete responsibility for technical design, system documentation, and architecture decision records. Architected end-to-end automation solutions for the complete lifecycle of enterprise networking products including L1 Transmission, L2 Connectivity, L3 VPN, and IoT Edge SIM. Engineered multi-step orchestration pipelines utilizing Camunda BPMN. Developed Jira Forge Apps and Automation Rules integrations to optimize internal engineering and operational processes.
Evolved from Junior to Senior Engineer over eight years on a sustained maritime technology engagement, progressively assuming Team Lead duties including junior mentorship, sprint planning, feature scope definition, Kanban management, and direct client communication. Architected and deployed a GIS vessel fleet monitoring platform processing real-time satellite location and meteorological data. Designed a modular, multi-map GIS platform with a drag-and-drop dashboard interface and a web-based scripting editor. Constructed a Vessel Performance Monitoring Dashboard ingesting IoT sensor telemetry to visualize CO2 and greenhouse gas emissions metrics.
Developed and implemented a real-time fleet monitoring platform ingesting live telemetry from IoT sensors, ECUs, and third-party devices using WebSockets, AWS Kinesis Data Streams, MongoDB Watchers, and scheduled Lambda/EC2 tasks. Integrated HubSpot CRM APIs to automate data ingestion and streamline marketing workflows. Built a QR-code based vehicle tracker onboarding tool. Delivered new features for the main company website using Vue/Nuxt and Strapi CMS.