Banner Image

Skills

  • Data Warehouse
  • Database Design
  • Database Development
  • Microsoft SQL Server
  • MySQL
  • Oracle
  • PostgreSQL
  • Query Optimization
  • SQL
  • Stored Procedures
  • Transact-SQL

Services

  • Database Development

    $60/hr Starting at $1K Ongoing

    Dedicated Resource

    🔹 Database Development & Performance Engineering Expert | 12+ Years of Experience I’m a highly skilled and performance-driven Database Developer and Architect with over a decade of experience building,...

    Data WarehouseDatabase DesignDatabase DevelopmentMicrosoft SQL ServerMySQL

About

Expert Database Developer | Fast, Scalable SQL Solutions | Specializing in Performance Tuning, Data Migrations, and Clean Architecture for Modern Applications

Ivan Lima – Senior Database Developer | SQL Performance Expert | Data Engineer

I’m Ivan Lima, a seasoned Database Developer and Data Engineer with over 12 years of experience designing, optimizing, and managing enterprise-level data systems. My passion lies in transforming complex business challenges into high-performance, scalable, and secure database solutions.

With deep expertise in SQL Server, Oracle, PostgreSQL, and cloud data tools like Azure SQL and ADF, I specialize in building efficient data architectures, optimizing slow queries, and leading full-scale data migrations. From OLTP systems to data warehouses, I’ve worked across fintech, healthcare, and e-commerce—always with a focus on clean code, simplicity, and speed.

I’m a strong advocate of agile practices (SCRUM), team mentorship, and continuous learning, combining technical depth with business alignment to deliver measurable impact. Whether you need better performance, better structure, or better insights—I’m here to make your data work smarter.

Let’s build something great with your data.

Work Terms

Availability: Monday to Friday, 9 AM – 6 PM (EST). Occasional weekend support available upon prior arrangement.

Communication: Primary communication via Freelancer.com, email, or Zoom. Response time within 24 hours on business days.

Project Engagement: Open to fixed-price, milestone-based, or hourly projects. Minimum engagement of 10 hours/week for ongoing projects.

Deliverables: Clean, well-documented SQL code with performance in mind. Includes query optimization, data modeling, ETL pipelines, and stored procedures as per project scope.

Version Control: Git preferred for code management and version control. Comfortable working in collaborative environments with branching strategies.

Project Management: Familiar with Agile, Scrum, and Kanban. Can work with Jira, Trello, or other project tracking tools.

Revisions & Testing: Includes unit testing and up to two rounds of revisions per milestone (unless otherwise agreed).

Confidentiality: NDA compliance and data security practices followed strictly. Comfortable signing client-specific agreements if needed.

Payment Terms: Payments to be made via guru.com or preferred platform upon milestone approval. Invoices provided as required.