American Institutes for Research

Database Engineer, Lead I

US-DC
Job ID
10155
United States

Overview

AIR is looking for experienced Senior Database Engineers that will design and develop highly scalable, performance driven databases which are simultaneously accessed by hundreds of thousands of users and students. DB engineers will use latest database technologies, practices and schemas to address performance, scalability, and efficiency issues with high transaction volume systems. We are looking for Subject Matter Experts (SME) to provide leadership in Database architecture and Design to all cross functions in the department.

Be part of something innovative and cutting edge. Join our team of more than a hundred software engineers, designers, project managers and software specialists that are smart, creative and excited by what they do.

Some of our ground-breaking work includes:
• advanced computer-adaptive algorithms (only one that’s peer-approved in the country)
• mobile support for the user interfaces
• learning management systems with social media features
• user interfaces that are universally accessible to people with or without disabilities
• innovative, machine-scorable items

Responsibilities

The Lead Database Engineer will be responsible for the design, development, and review of all database development activities to include implementation of new data schema, fields, or data values. Employs best database development knowledge to address performance, scalability, and efficiency issues with high transaction volume systems and configures and tests new database features for new releases. Will be a Subject Matter Expert (SME) and responsible for providing leadership in Database architecture and Design to all cross functions in the department.

Additional Responsibilities:
• Design database schema based on data modeling of business requirements and entities.
• Document schema design in E-R diagrams using MS Visio and maintain data dictionaries for all tables.
• Write new stored procedures, functions, views, triggers, constraints, etc.
• Review SQL code written by application developers to ensure compliance to coding standards and best practices as well as maximum performance.
• Create deployment and rollback scripts for all database objects manually or auto-generated.
• Analyze access patterns and propose the best combination of indexes, constraints, foreign keys, and queries.
• Troubleshoot performance problems and propose short term fixes and long term solutions.
• Create SSIS packages for data transformation, cleansing, caching, aggregation, staging, and transfer.
• Work with Architects and lead developers to come up with optimal database design

Qualifications

• B.S. in Computer Science, Engineering, Physics, Mathematics, or related discipline and 10+ years related experience.
• At least 6 years of hands on SQL Server development experience.
• Expert knowledge of all aspects of SQL Server 2005/2008 Transact SQL including the ability to write and deploy effective triggers, stored procedures and user defined functions.
• Profound understanding of SQL Server concurrency features, transactions, and locking; Excellent data modeling and schema design skills, including normalization and de-normalization
• Full grasp of the pros and cons of table partitioning and distributed partitioned views and how large data volume affects replication in SQL Server environment; In-depth knowledge and hands-on experience developing, deploying, and maintaining substantial SSIS packages.
• Thorough understanding of best practices for database maintenance, including index and file management, backups, failure recovery, database defragmentation, documentation; Ability to analyze disk space requirements and hardware utilization, automate error notification.
• Basic SQL Server administration skills, such as backups, restores, taking and reverting snapshots, user/role security, access permissions, etc.

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