Database Engineer, MongoDB

C. Mack Solutions

. Support a complex Federal Government program providing Agile development and operations and maintenance for critical systems .

Posted 10/23/2026full-timeUnited StatesMid-LevelSenior💰 $90,000 - $125,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in database administration and engineering, particularly with MongoDB and relational databases such as PostgreSQL and Oracle. Proficient in Agile methodologies, database security, and automation scripting using Python and Bash.

Highest-signal resume keywords

MongoDB AdministrationDatabase Security ConfigurationAgile Scrum ParticipationDatabase Performance TuningAutomation Scripting

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Database AdministrationMongoDB DesignSQL DevelopmentSchema DesignQuery OptimizationBackup and Recovery StrategiesData ModelingNoSQL SystemsLinux Operating SystemsDatabase STIGs Compliance

Tools & Technologies

MongoDBPostgreSQLOraclePythonBashIaC ToolsRHELCentOS

Certifications & Qualifications

CBP Public Trust Clearance

Industry Keywords

Federal Government ProgramsAgile DevelopmentHigh-Availability InfrastructureData RelationshipsDistributed Systems

Tech Stack

Tools & technologies

CloudDistributed SystemsLinuxMongoDBMS SQL ServerNoSQLOraclePostgresPythonSQL

About the role

Key responsibilities & impact

Support a complex Federal Government program providing Agile development and operations and maintenance for critical systems
Serve as the core data authority on an Agile Scrum team
Design and document logical and physical data models
Guide software teams on database schema design, indexing strategies, and data relationships for NoSQL and relational systems
Administer, configure, upgrade, and maintain MongoDB environments
Design and manage high-availability infrastructure, including MongoDB replica sets, sharded clusters, and distributed systems
Administer, model, and maintain relational databases such as PostgreSQL or Oracle
Perform continuous database tuning and query optimization
Analyze execution plans, evaluate indexes, and optimize MongoDB aggregation pipelines and SQL queries
Implement and maintain database security controls, including authentication, RBAC, auditing, and encryption
Develop, test, and implement backup, recovery, and disaster recovery strategies
Automate database deployment, configuration management, patching, and routine maintenance using Python, Bash, and IaC tools
Participate in Agile Scrum ceremonies and collaborate with developers, cloud engineers, and government stakeholders to support short-sprint software releases

Requirements

What you’ll need

Must live within the DC, MD, VA area
U.S. Citizenship is required
Must be able to obtain a CBP Public Trust clearance
College degree (B.S.) in Computer Science, Software Engineering, Information Technology, or a related technical field
5–7+ years of database administration/engineering experience
Minimum of 3+ years of dedicated, hands-on experience designing and administering MongoDB environments
In-depth knowledge of MongoDB architecture, replica sets, sharded clusters, locking mechanisms, WiredTiger storage engines, and transaction handling
Experience designing scalable schemas for document-oriented and relational databases
Working knowledge of relational database administration, schema design, and SQL development; PostgreSQL, Oracle, or Microsoft SQL Server preferred
Experience tuning slow queries, creating compound and partial indexes, and debugging performance bottlenecks in SQL and NoSQL systems
Ability to write clean, maintainable automation scripts in Python, Bash, or PowerShell
Experience configuring database security, including TLS/SSL certificates, Kerberos/LDAP integration, and auditing logs
Experience applying database STIGs/hardening guidelines
Comfort navigating Linux operating systems, including RHEL/CentOS, for database host configuration, volume management, and performance monitoring
Must reside in a U.S. state where the company is currently registered to employ team members

Benefits

Comp & perks

Medical insurance
Dental insurance
Vision insurance
Retirement savings plans
Paid time off
Other supplemental programs