Senior Database Engineer
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15+ years of experience with database systems: Oracle, DB2, MS SQL, PostgreSQL, MySQL, Snowflake, Sybase, Teradata, MongoDB, etc. Seasoned database specialist, working in various database environments with complex business-critical applications. Areas of expertise include database systems in numerous industries: utilities, IOT, travel, healthcare, insurance, finance, telecommunications, state government agencies, etc.
Highly skilled in database analysis, system design, data modeling, schema conversion, ETL, query tuning, performance improvement, etc. Very strong in database application development, mainframe programming and shell scripting. Demonstrated analytical mentality, excellent problem-solving and troubleshooting skills, adaptability, and willingness to learn.
Senior Database Engineer - Addison Group - Boston, MA
(2025-03)
Database support of a critical application for a large-scale enterprise technology organization in the financial services space. Detailed understanding of database design and business requirements; implementation of robust and scalable database architecture for high-performance systems. Database performance improvement and optimization:
Database Engineer / Consultant - Freelance / Consulting - Boston, MA
(2024-01 - 2025-01)
As a Freelance Consultant worked on short-term projects, including but not limited to:
Principal Database Engineer - National Grid - Boston, MA
(2022-06 - 2023-12)
As a member of the Data Archiving Team, worked on various projects; set objectives, strategies, plans; defined KPIs; established standards and procedures to analyze and archive decommissioned applications. Worked with business partners and IT stakeholders to identify, define and clarify archive requirements; liaison with customers to ensure that delivery is as per agreed requirements and expectations. Provided ongoing support for the InfoArchive applications and services; including but not limited to components installation, system administration, and configuration for enterprise scale deployment in Prod/PreProd environments; performing daily system checkup and disk space monitoring.
Performed data extraction and transformation from various legacy systems (DB2, COBOL Mainframe, Oracle, MSSQL, etc.), loading data into consistent data stores (archives). Solved complex performance problems, architectural challenges, and production issues.
Senior Database Administrator - SSG - Boston, MA
(2021-10 - 2022-04)
Provided database support for various company projects in the healthcare domain. Installed, maintained, supported corporate database systems: Oracle, MS SQL, PostgreSQL, etc. As a member of the DevOps team, played a key role in the process of setting objectives, strategies, plans, performance standards/measures, and procedures.
Took responsibility for ensuring high availability of critical database systems and services. Resolved complex performance challenges and production issues. Supported the development team to create, modify and optimize program code for various database applications: SQL, PL/SQL, T-SQL, PL/pgSQL, shell / Python scripting, etc.
Refactored and developed complex SQL queries for Oracle, MS SQL and PostgreSQL databases. Built distributed ETL systems across a wide range of database platforms using various technologies AWS (Glue, DMS, SCT), Pentaho, etc.; created complex jobs for database migration, reporting, and data analytics.
Senior Database Engineer - Octo Telematics, N.A. - Newton, MA
(2018-10 - 2021-06)
Provided database support for multiple company projects in the IOT domain. Installed, maintained databases, and developed program code for Oracle and BigData databases. Resolved complex performance challenges and production issues.
Set up scheduler jobs on Linux Servers for data automation and quality analysis. Was responsible for ensuring high availability of critical database systems and services. Performed development, implementation, and testing of failover and disaster recovery plans for all critical database systems.
Worked on overall performance optimization for the databases, including but not limited to indexing, partitioning, parallel query execution, etc. Refactored and developed complex SQL queries and PL/SQL programs, wrote automated tests for the created code. Built CI/CD pipelines and distributed ETL systems across a range of database platforms and technologies.
As a key member of the DevOps team, set objectives, strategies, plans, programs, performance standards/measures, and procedures. Participated in on-call rotation for system administration level 2 support including but not limited to weekends, holidays and after-business hours required to service business need
Senior Database Engineer - Stanford Technology Partners - Bedford, MA
(2018-07 - 2018-08)
Client: Infogroup. Designed, coded, and tested major features, as well as analyzed data needs and independently developed logical and physical data models with varying degrees of complexity and scale. Developed SQL and shell scripts and procedures for data auditing and automation.
Performed code reviews and worked jointly with other team members to provide complex software enhancements for CRM, MDM, BI. Designed and developed scalable and reusable ETL jobs to perform complex database processes. Compiled documentation on code maintenance in accordance with the company's standards.
Senior Database Administrator - Verscend - Waltham, MA
(2018-01 - 2018-06)
Performed installation and upgrade of enterprise database management systems: Oracle, MS SQL, Vertica, etc. Performed monitoring, troubleshooting, and root-cause analysis of database related issues in support of critical day-to-day business operations. Established and enforced consistent database standards, access protocols, profiling, benchmarking, development, execution, and measurement of effective service level agreements.
Ensured high availability of critical database systems and services and development, implementation and testing of failover and recovery plans for all critical database systems. Participated in database administration support as required to service business needs.
Database Engineer - SRI Infotech - Quincy, MA
(2016-09 - 2018-01)
Client: State Street Bank. Worked on a global team with offshore development engineers participating in a full software development lifecycle within an Agile environment, using CI/CD pipelines (Jenkins), automated testing, and DevOps practices. Responded to technical requests and directions from VPs, providing technical database design recommendations to management.
Worked with product managers and business analysts in translating business requirements into high level functional design specifications. Conducted project design and application code reviews, making best optimal implementation decisions to ensure quality and efficiency. Performed UAT tests and quality checks for migrated databases environments (storage and infrastructure layer).
Refactored and developed complex SQL queries and PL/SQL program units, following the ATDD methodology, and writing automated tests for the created code.
Database Administrator - Tibersoft - Westborough, MA
(2016-04 - 2016-06)
Performed database administration and maintenance tasks including but not limited to capacity planning, backup/recovery, export/import, database connectivity, database refresh, data cleansing, de-duplication, etc. Communicated and managed changes in requirements over the project life cycle translating nontechnical business requirements into technical action plans. Conducted performance improvement and tuning of SQL queries and PL/SQL programs using partitioning and parallel query options.
Created new and modified existing ETL jobs to efficiently load and extract data from the data warehouse.
M.S. - Mathematics & Mechanics - SPbU
B.S. - Computer Science - SPbU
