
Data Engineer
Hän johti laajamittaista tietokannan puhdistus ja persona luominen projekti suurelle Kreikan markkinapaikalle, hallinnoi yli 18 miljoonaa asiakasennätys. Aloitteessa suunniteltiin reaaliaikaiset putkistot Kafkan ja RedPandan avulla yhdistämään asiakasprofiilit ja säilyttämään samalla alustan nykyiset toiminnot.
Dimosthenis tuntee täsmällisyytensä, innovaationsa ja yhteistyötapansa ja tuottaa jatkuvasti luotettavia ja vaikutusvaltaisia dataratkaisuja.



Developed and maintained complex stored procedures, triggers, and functions for enterprise applications;
Built ETL pipelines using SSIS to manage both structured and unstructured data;
Designed and optimized relational database(MySQL) schemas to support critical business applications;
Created automated reports and dashboards for business users;
Delivered database performance tuning and troubleshooting support.
Create communication tools between Oracle(TOAD) and MySQL(Workbench) for data integration among systems
Data Team manage(3 members)

SingularLogic is one of Greece’s largest software companies, focusing on ERP, CRM, and enterprise application solutions.
Designed and developed databases and reporting solutions for ERP systems using SSMS.
Created and maintained stored procedures and functions for enterprise clients using C#.
Built ETL pipelines using SSAS to integrate multiple data sources into centralized systems.
Developed dashboards and custom reports using SSIS to support business analytics.
Collaborated with cross-functional teams to enhance system scalability and performance.

Designed relational database schemas from scratch to meet client requirements, ensuring scalability and efficient query performance;
Built and optimized ETL pipelines for data migration and integration across multiple heterogeneous sources (CSV, Excel, APIs);
Automated reporting workflows with SSRS and custom SQL scripts, reducing manual effort for clients;
Developed dashboards that provided small business owners with real-time financial and operational insights;
Provided consultancy on database optimization, indexing strategies, and query tuning for improved system performance;
Assisted startups in setting up data-driven workflows and advised on cloud vs. on-premise database hosting solutions;
Delivered technical documentation and training sessions to non-technical stakeholders to ensure sustainable use of systems.
Michanografiki - Organotiki – Technology and consulting company specializing in ERP/CRM implementations and IT support services across Greece.
Contributed as a team member in implementations, focusing on database integrations and ERP/CRM rollouts;
Analyzed client databases and developed custom connectors to synchronize data between multiple systems, ensuring smooth interoperability;
Supported the setup and configuration of Galaxy ERP and CRM solutions, customizing workflows and modules to fit client-specific business processes;
Provided daily live customer support, troubleshooting issues and resolving incidents in real time to ensure business continuity;
Assisted in system testing and validation, making sure new deployments were stable and fully aligned with customer requirements;
Worked with senior developers and consultants, gaining valuable hands-on experience in enterprise software solutions.

Designed and implemented MIS data cubes within Galaxy ERP, focusing on Sales and Purchases modules to provide management with structured reporting and analytics;
Assisted in customizing ERP workflows and reports, contributing to better data accessibility and decision-making for clients;
Gained hands-on experience with VBScript and C# scripting, applying them in ERP customizations and automation tasks;
Collaborated with senior consultants and developers to understand best practices in ERP deployment and data integration;
Documented technical steps and results to create a knowledge base for future interns and junior staff;
Built a strong foundation in enterprise software development, laying the groundwork for subsequent professional roles.

Conducted requirement analysis for various clients, translating business needs into technical specifications;
Designed and developed websites and e-commerce platforms using PHP, JavaScript, and MySQL, ensuring responsiveness and scalability;
Delivered custom solutions such as booking systems, product catalogs, and interactive features tailored to different industries;
Offered ongoing live support and maintenance, ensuring high uptime and quick resolution of technical issues;
Built a diverse portfolio of websites and e-shops, including mantisnlp.com, traveltales.gr, psiktotechniki.gr, edytoys.gr, alfa-vita.gr, digitalprolab.eu, xantzaris-container.gr, umbrellas.gr, mynails.gr, and others;
Helped small and medium-sized businesses establish an online presence, boost sales, and increase digital visibility;
Collaborated directly with non-technical stakeholders, providing training and documentation to promote self-sufficiency.
Kaikki Data Engineert, jotka ovat hakeneet Proxifylle, pisteytetään välillä 0–300 insinööritaidon perusteella, joka on yksi viidestä arvioimastamme parametrista. Tämä pistemäärä heijastaa ainoastaan insinööritaitoa, perustuen haastatteluihin, kotitehtäviin, suorissa koodausistunnoissa sekä työn suorituskyvyn arvioinnissa annettuihin tuloksiin. Kaavio näyttää, miten kaikki arvioidut Data Engineert jakautuvat tässä mittakaavassa, hyväksymisrajamme tälle parametrille sekä missä kohtaa Dimosthenis sijaitsee.

Issued May 2021

Issued May 2021
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