Daniel is available for hire
Hire DanielDaniel Bakos
Verified Expert in Engineering
SQL Developer
Budapest, Hungary
Toptal member since October 31, 2016
Bio
Daniel is an SQL expert and business improvement specialist with over 30 international and 50 domestic projects under his belt as an SQL developer, technical lead, or project manager. He has 12 years of experience with Microsoft SQL Server and 6+ with ASP.NET and C#. He's also worked as an engineer. He enjoys working in an agile environment and is looking for challenges as an SQL developer or engineer.
Portfolio
Adminbot
Azure SQL, Transact-SQL (T-SQL), Python 3, Microsoft SQL Server, XML, JSON...
GLABs
CSS, HTML, Java, PHP, XML, JSON, Databases, API Databases, APIs...
LLP Hungary
Microsoft Servers, Microsoft SQL Server, ASP.NET, XML, APIs, Data Engineering...
Experience
- SQL - 20 years
- Microsoft SQL Server - 12 years
- SQL Management Studio - 9 years
- VBScript - 7 years
- Agile - 6 years
- ASP.NET - 5 years
- C#.NET - 5 years
- Jira - 3 years
Preferred Environment
Visual Studio, Microsoft SQL Server
The most amazing...
...I've built a game engine with load balancing that can manage 1,000 requests a second. It is a fully automated multi-warehouse via EDI and ERP interfaces.
Work Experience
Senior Consultant
2021 - PRESENT
Adminbot
- Developed multiple automations and interfaces using Python with Azure SQL and Microsoft SQL Server background.
- Contributed to pure Microsoft SQL Server-based development between SAP and other web applications. All logic is written in SQL, processing IDOC XML files and managing JSON communication from SQL Agent jobs.
- Worked on an Angular web application development using the Microsoft SQL Server back end.
Technologies: Azure SQL, Transact-SQL (T-SQL), Python 3, Microsoft SQL Server, XML, JSON, Databases, Database Migration, Python, APIs, Data Engineering, Data Integration, Data Structures, Database Architecture, ETL
Program Manager
2014 - PRESENT
GLABs
- Focused on technical solutions in logistics. Analyzed business requirements and participated in the quotation process.
- Prepared and maintained project, stage and exception, and contingency plans as required.
- Adopted and applied appropriate technical strategies based on Agile principles.
- Planned and monitored the progress of the project. Supported go-live processes on-site and online. Managed retrospective meetings internally.
Technologies: CSS, HTML, Java, PHP, XML, JSON, Databases, API Databases, APIs, Data Engineering, Data Integration, Data Structures, Microsoft Power BI
Senior Technical Consultant
2014 - 2020
LLP Hungary
- Consulted in multiple roles, including those of a project manager, technical expert, developer, defect manager, and analyst, typically in projects for Sun Financial systems.
- Migrated server- and application-level processes. Developed the SUN Extra application.
- Completed technical upgrade procedures. Developed interfaces.
- Contributed to reporting with the SQL background using multiple BI solutions.
- Provided technical support to LLP's partners and the LLP consultant team.
- Led SQL development as a knowledge leader, improved internal processes, and managed local IT support.
Technologies: Microsoft Servers, Microsoft SQL Server, ASP.NET, XML, APIs, Data Engineering, Data Integration, Data Structures, Database Architecture, ETL, Data Visualization
Senior Database Specialist
2013 - 2014
Take 5, Ltd.
- Led database-related development in the existing platform under MS SQL 2008.
- Optimized SQL logic using best practices and recognized database bottlenecks. Created a new OLAP structure for further analysis.
- Planned, installed, and developed a new HA database layer in NewSQL (NuoDB) and Azure (SQL 2012).
- Wrote technical and functional specifications. Implemented new coding standards and naming conventions.
- Controlled server-side database-related daily activities based on Agile methods (Jira).
Technologies: Java, NuoDB, C++, Azure, Microsoft SQL Server, Databases, Database Migration, Data Engineering, Data Integration, Data Structures, Database Architecture, ETL
Software Engineer
2008 - 2013
SEWS CE
- Managed several key IT projects including planning, development, implementation, and follow-up.
- Supervised daily activities and tasks of a multinational development team (six to eight developers) as well as supported and coordinated IT resources based on business priorities and HD calls.
- Organized meetings with separate business units. Identified processes for improvement of new requirements.
- Verified gaps and setup user stories, focusing on business value.
- Identified and established scope and transformed user requirements into functional system specifications by creating written requirement documents.
- Maintained a close relationship with the development team and followed Agile principles in practice. Set up training sessions based on business requests.
- Kept actively involved in both coding and testing phases. Focused on the integration of customer and supplier data via EDI within the existing bespoke written business system based on external and internal requirements.
- Created cost, resource, and time analyses and reported to the senior business managers. Managed user testing and release processes.
- Maintained product and Sprint backlogs and reported to the IT manager in daily standups in a role of Scrum master or product owner.
- Supported daily activities for the business in multiple sites and countries in logistics, purchasing, finance warehouse, commercial, and planning departments.
Technologies: CSS, C#, ASP.NET, Microsoft SQL Server, XML, Databases, API Databases, EDIFACT, Electronic Data Interchange (EDI), Agile, SQL, APIs, Data Engineering, Data Integration, Data Structures, Database Architecture, ETL, Business Intelligence (BI)
Account Manager
2005 - 2008
Kulcs Soft Zrt.
- Visited global clients on-site and trained them to assist in their use of the products.
- Managed database conversions, making database corrections in Kulcs-Soft BA products softwares on SQL 2000/2005: Inventory, Cash Management, Bookkeeping, Payroll Calculation, CMR.
- Discussed with VIP and normal clients about unique development requests.
- Created user specifications and managed the whole implementation process from the official offer to the release.
- Created development specifications and control code phases in close cooperation with clients.
- Managed testing and ensured business continuity after software release.
- Proactively and energetically interacted in a team environment to collaborate with peers on customer issues.
Technologies: Microsoft SQL Server, Delphi, Data Structures, Database Architecture
Experience
Multiwarehouse Logistics Inventory Management
This project was about building stock and managing deliveries between multiple sites/countries based on EDI demands.
The target is to keep stock and deliver from an external warehouse based on customer demands to the customers directly. The external warehouse is a logistics provider responsible for preparing and managing the deliveries.
The target is to keep stock and deliver from an external warehouse based on customer demands to the customers directly. The external warehouse is a logistics provider responsible for preparing and managing the deliveries.
Education
2000 - 2005
Bachelor's Degree in IT Engineering
Gábor Dénes College - Budapest
Skills
Tools
SQL Management Studio, Jira, Microsoft Visual Studio, Microsoft Power BI, Visual Studio, Eclipse IDE
Languages
SQL, VBScript, C#.NET, Transact-SQL (T-SQL), XML, Delphi, C#, C++, Java, PHP, HTML, CSS, Python 3, Python
Paradigms
Agile, ETL, Business Intelligence (BI)
Platforms
Windows, Azure
Storage
Microsoft SQL Server, Databases, Database Migration, API Databases, Data Integration, Database Architecture, SQL Server Integration Services (SSIS), NuoDB, Azure SQL, JSON, SQL Server Reporting Services (SSRS)
Frameworks
ASP.NET
Other
APIs, Data Engineering, Data Structures, Data Visualization, Enterprise Resource Planning (ERP), Microsoft Servers, Electronic Data Interchange (EDI), EDIFACT
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