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Senior Sql Developer Jobs in Crofton, MD (NOW HIRING)

Annexa Inc.

Senior SQL Developer

Washington, DC · On-site

Senior SQL Developer Employment Type: Onsite Annexa Inc is currently working with DC Office of Unified Communications and we are seeking a Senior SQL Developer. The SQL Developer will be responsible ...

Interclypse Inc.

SQL Developer (Senior)

Annapolis, MD · On-site

The Application Developer, Advanced Technology (Senior) must be able to translate applications ... Strong command of SQL and experience with relational databases such as PostgreSQL * Experience ...

MDAEdge

Principal SQL Developer

Washington, DC · On-site

MDAEdge is seeking a Principal SQL Developer to provide technical leadership in designing ... senior leadership, application teams, data science, and business stakeholders to align data ...

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How much do senior sql developer jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for senior sql developer in Crofton, MD is $58.54, according to ZipRecruiter salary data. Most workers in this role earn between $48.85 and $66.63 per hour, depending on experience, location, and employer.

What is a senior SQL developer?

A Senior SQL Developer is responsible for designing, developing, and optimizing database solutions to support applications and business processes. They write complex SQL queries, create stored procedures, and ensure database performance and security. Additionally, they collaborate with developers, analysts, and business teams to translate requirements into efficient database solutions. Experience with database management systems like SQL Server, MySQL, or PostgreSQL is essential. They may also be involved in data modeling, ETL processes, and automation tasks to improve data handling efficiency.

What does a senior SQL developer do?

As a Senior SQL Developer, you can expect to work on tasks such as designing and optimizing complex database structures, writing advanced queries and stored procedures, and ensuring data integrity across systems. You will often collaborate closely with software developers, business analysts, and data architects to translate business requirements into practical database solutions. Daily responsibilities might also include troubleshooting performance issues, managing data migrations, and supporting application development teams with their database needs. This role typically involves a mix of independent work and teamwork, providing both variety and opportunities for learning new technologies.

What are the key skills and qualifications needed to thrive as a senior SQL developer?

To excel as a Senior SQL Developer, you need advanced proficiency in SQL programming, database design, and data modeling, typically supported by a relevant degree and several years of experience. Familiarity with major database management systems like Microsoft SQL Server, Oracle, or MySQL, as well as certifications such as Microsoft Certified: Azure Database Administrator Associate, is highly valuable. Strong problem-solving skills, collaboration, and effective communication are crucial soft skills for this position. These competencies enable you to build robust, efficient database systems while working seamlessly within cross-functional teams to support organizational objectives.

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Senior Sql Developer jobs near you
Infographic showing various Senior Sql Developer job openings in Crofton, MD as of August 2026, with employment types broken down into 1% Internship, 84% Full Time, 8% Part Time, and 7% Contract. Highlights an 76% Physical, 7% Hybrid, and 17% Remote job distribution, with an average salary of $121,755 per year, or $58.5 per hour.

Senior SQL Developer

Annexa Inc.

Washington, DC • On-site

Full-time

Re-posted 14 days ago

Job description

Senior SQL Developer
Employment Type: Onsite

Annexa Inc is currently working with DC Office of Unified Communications and we are seeking a Senior SQL Developer. The SQL Developer will be responsible for ensuring the accuracy, consistency, and integrity of data across various systems within the organization. This role involves conducting thorough data analysis to identify trends and discrepancies and collaborating with cross-functional teams to address data needs and enhance data management practices. The ideal candidate will possess strong analytical skills, proficiency in data management tools, and the ability to communicate effectively with stakeholders, driving continuous improvement in data quality and governance. The work includes development and maintenance of consulting relationships with multiple agencies that have unique systems, data, programs, business and problems requirements; project planning; coordination of multiple projects; identification of problems; and development of alert native solution. The complexity of the work is often compounded by the need to respond to agency business problems rapidly in response to Federal or District regulations. Decisions regarding what needs to be done include largely undefined issues and elements and require extensive probing and analysis to determine the nature and scope of the problems. The work requires continuing efforts to resolve unyielding problems.
Responsibilities:
  • Interfaces, independently, with high level stakeholders via meetings, emails, and phone calls to manage data projects. Gather and document requirements; and to gather sample data throughout all phases of the project to ensure data quality.
  • Works with District agency resources to analyze, compile. verify, and query data as part of data warehousing services. Develops complex SQL queries used by reporting environments and data-driven dashboard applications Creates metadata and data dictionaries.
  • Designs and documents methods to facilitate the implementation of new database systems. Designs and implements reports using SQL as well as a variety of reporting and business intelligence tools.
  • Develops and administers data standards, policies and procedures; and develops new standards, methods, and techniques. Develops common approaches to problem solving and meeting processing requirements. Develops and analyzes new projects.
  • Creates scripts to identify and correct common errors and data inconsistencies in incoming data. The incumbent will make extensive use of structured query language (SQL).
  • Troubleshoots problems involved in the input, retrieval or modification of database information and the general operation and maintenance pertinent to any of the enterprise data system elements or sub-elements.
  • Perform complex data analyses including experience validating data and identifying and correcting data inconsistencies and errors. Analyzes and defines requirements and specifications pertinent to OUC and OCTO enterprise systems and applications. Analyzes and plans for anticipated changes in data capacity requirements. Evaluates the impact of technological changes; and/or conceives of solutions to highly complex technical issues. Operate and maintain Business Intelligence systems and ancillary systems for serving up data analytics.
  • Coordinates all activities with the project manager throughout the full software development life cycle (SDLC). to include design, development, and testing.
  • Works with minimal oversight as a technical lead on data-driven reporting and applications development projects.
  • Keep abreast of current trends regarding all aspects of database management. Keep information of latest concepts, developments, approaches, and solutions to effective agency data management.
  • Performs other related duties as assigned.

Required Skills:
  • Bachelor’s degree in IT or related field or equivalent experience
  • 16 yrs Extensive knowledge of a wide range of IT standards, principles, concepts, methods, policies, system testing principles and methods
  • 16 yrs Extensive knowledge of authorized system approaches for IT pertinent to databases management.
  • 16 yrs Extensive knowledge of and skill in applying analytical methods and practices, and requirement analysis principles and methods.
  • 16 yrs Extensive knowledge in working with relational database technologies.
  • 10 yrs Extensive knowledge in creating metadata/data dictionaries; designing and implementing reports
  • 10 yrs Extensive knowledge creating database views used for the purposes of establishing live data feeds as well as the development of data-driven dashboard
  • 15 yrs Extensive knowledge of software development life cycle (SDLC), as well as, managing small IT projects with minimal oversight.
  • 15 yrs Extensive knowledge of data warehousing concepts; and extensive knowledge in working with data architects in the design of database schemas.
  • 10 yrs Knowledge of BI systems operations and maintenance
  • 10 yrs Expert knowledge of and skill in applying oral and written communication techniques; and in evaluating and reporting on accomplishments.
  • 10 yrs Demonstrated ability to speak and write clearly and effectively when dealing with various technical and non-technical audiences.
  • 16 yrs Skill in data analysis, and SQL code development.

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