SQL Developer

Njoyn; Fairfax (VA); Hybrid; USD 90,000 - 198,000; Full time

Job summary

CGI is seeking an experienced SQL Developer to design, optimize, and scale PostgreSQL and MySQL databases, build robust ETL pipelines, and bridge relational data with NoSQL solutions like MongoDB. The role supports hybrid work locations in Fairfax, VA or Lafayette, LA.

Responsibilities include designing scalable schemas, writing complex queries, optimizing performance, and ensuring data security and integrity across platforms. Requires a BS in CS/IT and hands-on RDBMS experience.

Qualifications

• Education: Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).
• RDBMS Expertise: Strong, hands on production experience engineering databases with PostgreSQL and MySQL.
• ETL Proficiency: Proven experience building data pipelines using ETL tools (e.g., Apache Airflow, Talend, AWS Glue) or custom scripting languages.
• NoSQL Familiarity: Conceptual and practical understanding of NoSQL database architecture, specifically MongoDB, including basic querying and JSON/BSON document structures.
• Tooling: Proficiency with database management utilities such as pgAdmin or MySQL Workbench alongside version control systems like Git.
• Problem Solving: Exceptional analytical skills with a proven track record of diagnosing complex data performance anomalies and tuning slow running queries.

Responsibilities

• Database Design & Development: Build and maintain scalable relational schemas, tables, views, and constraints across PostgreSQL and MySQL.
• Advanced Scripting: Write and optimize complex queries, triggers, CTEs, and stored procedures tailored to dialect features (e.g., PL/pgSQL).
• ETL Pipeline Engineering: Design, implement, and monitor ETL/ELT data pipelines to extract, transform, load data into target systems.
• Performance Tuning & Optimization: Optimize queries, manage indexing, resolve deadlocks and bottlenecks.
• Hybrid Data Collaboration: Integrate relational data with NoSQL stores like MongoDB for unstructured data workflows.
• Data Integrity & Security: Establish data security protocols, manage user roles/permissions, back up strategies.

Skills

PostgreSQL

MySQL

ETL pipelines

NoSQL MongoDB

Query optimization

Education

Bachelor's degree in Computer Science/Information Technology

Tools

pgAdmin

MySQL Workbench

Job description

Job order - J0926-1963 - Permanent Full Time

Title SQL Developer

Category Database Administration

City Fairfax, Virginia, United States

Job Description SQL Developer

Position Description

CGI is seeking a highly skilled SQL Developer with deep expertise in PostgreSQL and MySQL to manage, optimize, and scale our database architecture. In this role, you will be responsible for designing relational database solutions, developing efficient database code, and building robust ETL data pipelines. Additionally, you will bridge the gap between our structured systems and non relational data environments by bringing a foundational familiarity with NoSQL technologies like MongoDB. You will collaborate closely with software engineering and data teams to ensure high performance, data integrity, and cross platform availability.

***This position is located in our Fairfax, VA or Lafayette, LA office; however, a hybrid working model is acceptable***

Your future duties and responsibilities

• Database Design & Development: Build and maintain scalable relational schemas, tables, views, and constraints across both PostgreSQL and MySQL environments.
• Advanced Scripting: Write and optimize highly complex queries, triggers, CTEs, and stored procedures/routines tailored to dialect specific features (e.g., PostgreSQL PL/pgSQL).
• ETL Pipeline Engineering: Design, implement, and monitor robust ETL/ELT data pipelines to extract data from disparate sources, transform it for business logic, and load it into target analytical databases or data warehouses.
• Performance Tuning & Optimization: Conduct query optimization, configure execution plans, manage indexing strategies (such as B Tree, GIN, or Hash indexes in PostgreSQL), and resolve deadlocks or database bottlenecks.
• Hybrid Data Collaboration: Support the integration of relational data systems with document oriented stores, utilizing your familiarity with NoSQL databases like MongoDB for unstructured or semi structured data workflows.
• Data Integrity & Security: Establish data security protocols, manage user roles and permissions, and collaborate on backup strategies to ensure disaster recovery readiness.

Required qualifications to be successful in this role

• Education: Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).
• RDBMS Expertise: Strong, hands on production experience engineering databases with PostgreSQL and MySQL.
• ETL Proficiency: Proven experience building data pipelines using ETL tools (e.g., Apache Airflow, Talend, AWS Glue) or custom scripting languages.
• NoSQL Familiarity: Conceptual and practical understanding of NoSQL database architecture, specifically MongoDB, including basic querying and JSON/BSON document structures.
• Tooling: Proficiency with database management utilities such as pgAdmin or MySQL Workbench alongside version control systems like Git.
• Problem Solving: Exceptional analytical skills with a proven track record of diagnosing complex data performance anomalies and tuning slow running queries.

CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $89,600.00 $198,400.00.

CGI Federal's benefits are offered to eligible professionals on their first day of employment to include:

• . Competitive compensation
• . Comprehensive insurance options
• . Matching contributions through the 401(k) plan and the share purchase plan
• . Paid time off for vacation, holidays, and sick time
• . Paid parental leave
• . Learning opportunities and tuition assistance
• . Wellness and Well being programs

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.

CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at [e-mail] . You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.

All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI’s legal duty to furnish information.