Cristi Constantin
Verified Expert in Engineering
Client Delivery Management Developer
Bucharest, Romania
Toptal member since June 18, 2020
Cristi has over 17 years of IT experience, most of them in a management position, delivering custom software solutions in the financial services sector. He strongly focuses on delivering business value by finding out-of-the-box alternative solutions, helping eliminate bottlenecks, and emphasizing efficiency, scalability, and quality. Cristi focuses on people by helping them feel comfortable in their roles, through improvements in workflows, documentation, and tools employed.
Portfolio
Experience
- Oracle SQL - 14 years
- Oracle PL/SQL - 14 years
- Database Design - 12 years
- Client Delivery Management - 7 years
- Team Management - 6 years
- Database Modeling - 4 years
- Agile Software Development - 3 years
- Technical Recruiting - 3 years
Availability
Preferred Environment
Team Management, SQL, Software Development, Software Design, Agile, Data Warehousing, Service Delivery Management (SDM), Oracle PL/SQL, Performance Optimization, Delivery Management, Amazon Web Services (AWS), Python, Azure, Database Architecture, PostgreSQL
The most amazing...
...thing was coding a database reporting module based on stored procedures and temporary session tables; it supports dozens of reports and DWH interactions.
Work Experience
Delivery Manager
Cegeka
- Implemented Atlassian products (Jira Software and Service Management and Confluence) for project work and customer support.
- Implemented onboarding and training plans for all roles.
- Standardized project lifecycle responsibilities and processes (issue transition workflows, phase deliverables, guidelines, and best practices).
- Implemented agile elements like planning poker and retrospective sessions.
- Implemented an internal tool for tracking WFH and time-off requests.
IT & Service Delivery Manager
Solera
- Successfully delivered continuous change requests to a top customer having the most complex business workflow.
- Implemented an online application for streamlining a specific client business process.
- Improved product capabilities by challenging, verifying, and correcting the data sources.
- Improved error logging and reporting on various automatic processing systems.
- Implemented workaround complementary solutions for data quality issues.
- Massively improved the performance of the daily reporting and the end-of-month billing process.
Software Team Lead
Accenture
- Successfully delivered software solutions in an agile, iterative process, emphasizing quality and time constraints.
- Proposed out-of-the-box solutions for third-party system integrations or for overcoming software framework limitations.
- Enabled team members by giving guidance on approaches, estimations, and implementation steps while letting them tackle the problems.
- Increased the application's business value by highlighting issues to clients and proposing suitable solutions for them.
Software Team Lead
Dorsum Software
- Implemented a new approach for the reporting module based on a common PL/SQL data source definition, allowing high code reuse, single point of definition, performance improvements, and easy bug fixing.
- Optimized application and SQL code performance with a speed gain of over 100 times.
- Analyzed and decided on cost-effective and reliable technological solutions for integrating current products with external systems like Bloomberg's pricing web service, CRM, SQL Server Reporting Services, and other third-party solutions.
- Designed and implemented various IT Service Management techniques like standardized SVN structures, "smart" documentation templates, patch preparation process, common administrative tools between projects, semi-automatic build features, etc.
- Participated in specification workshops; prepared and followed up on work packages.
Freelance Developer
Freelance Work
- Completed several projects (especially Java-based and script-related) and served mostly US clients.
- Respected and met all deadlines and provided complete and reliable solutions; all work was performed in my free time.
- Received very good feedback from end customers; this feedback is available on request.
Internal Testing Engineer
Bitdefender
- Tested Bitdefender division products according to specifications.
- Performed discovery, reporting, and follow-ups on bugs and other issues like performance.
- Evaluated product performance compared to the market competitors.
Experience
Java Job Board Crawler
It searches for specific words (manager, lead, and leader) in job listings and job titles while eliminating irrelevant results, such as assistant manager. It works in a multi-threaded manner and does a thread pause not to overwhelm the queried systems.
Oracle PL/SQL Code Sample
Database Reports Engine | Features Showcase
Education
Bachelor's Degree in Computer Science
Politehnica University of Bucharest - Bucharest, Romania
Certifications
Professional Cloud Architect
Oracle Customer Data Management Cloud Service 2018 Certified Implementation Specialist
Oracle
Oracle Database SQL Certified Associate
Oracle
Scrum Fundamentals Certified
SCRUMstudy
ITIL Foundation
AXELOS
Skills
Libraries/APIs
JasperReports
Tools
Subversion (SVN), TortoiseSVN, iReport, Oracle SQL Data Modeler, Oracle Application Express (APEX), Slack, TortoiseGit, Apache JMeter, Git, Sybase PowerDesigner, Tableau, Microsoft Power BI
Languages
SQL, PowerBuilder, Visual Basic for Applications (VBA), XML, Java, Python
Paradigms
Database Design, Agile Software Development, Scrum, Business Intelligence (BI), Agile, Testing, ITIL, Management, ETL
Platforms
Oracle, Eclipse, Windows Server, Linux, Jakarta EE, Azure, Amazon Web Services (AWS), Oracle Data Integrator (ODI), Google Cloud Platform (GCP)
Storage
Database Modeling, Oracle SQL, Databases, Oracle PL/SQL, PL/SQL, Database Architecture, Relational Databases, MySQL, Microsoft SQL Server, Oracle 12c, Oracle Cloud, Data Pipelines, Apache Hive
Industry Expertise
Project Management
Other
ITIL V3 Foundation Certified, Regular Expressions, Technical Training, Data Migration, Employee Training, Query Optimization, Query Composition, Relational Database Design, CSV, Data Modeling, Product Demonstrations, Sales Presentations, Business Analysis, Team Management, Performance Tuning, Data Engineering, Data Architecture, SaaS, Requirements & Specifications, Functional Specifications, Networks, Work Package Management, Web Services, Performance Optimization, System Architecture, Quality Auditing, IT Recruitment, Software Design, Software Development, Data Warehousing, Service Delivery Management (SDM), Delivery Management, Antivirus Software, IT Project Management, Resource Management, Client Delivery Management, Technical Recruiting, Analytics, Data Warehouse Design, Data Analysis, Pipelines, Data Visualization, BI Reports, Dashboards, PDF, Coding
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