Job Title: Senior SQL Server Database Administrator (DBA) Experience: 8+ Years Location: Coimbatore Notice Period: Immediate Joiners Only Job Summary We are seeking a highly skilled Senior SQL Server DBA to manage, maintain, and optimize SQL Server databases in a 24x7 enterprise environment. The ideal candidate will be responsible for database design, performance tuning, high availability, and security while collaborating with cross-functional teams to ensure seamless operations. Key Responsibilities - Install, configure, and maintain SQL Server databases across development, staging, and production environments - Monitor database performance, apply patches, and upgrade systems as required - Perform database tuning and optimization (indexing, query optimization, performance monitoring) - Implement and manage high availability and disaster recovery solutions (Always On, Log Shipping, Mirroring, Clustering) - Ensure database security, integrity, and system availability - Develop and maintain documentation for database standards, policies, and procedures - Collaborate with developers to optimize queries and database design for scalability - Troubleshoot and resolve database-related issues promptly - Conduct regular health checks and capacity planning - Automate routine database tasks using PowerShell, T-SQL, or other tools - Participate in on-call rotation and provide off-hours support Required Qualifications - 8+ years of hands-on experience as a SQL Server DBA in production environments - Strong expertise in SQL Server 2016 and above - Deep knowledge of performance tuning, query optimization, and indexing strategies - Experience with high availability and disaster recovery (Always On, Log Shipping, etc.) - Strong experience in backup and recovery strategies - Expertise in T-SQL, stored procedures, triggers, views, and functions - Proficiency with monitoring tools such as SQL Server Profiler, Performance Monitor, and third-party tools - Strong understanding of database security and user management - Experience working with cloud platforms like Azure SQL or AWS RDS (preferred) - Excellent verbal and written communication skills - Ability to work independently in a remote setup and manage priorities effectively Preferred Qualifications - Microsoft certifications such as Azure Database Administrator Associate - Experience with DevOps tools and CI/CD pipelines for database deployments - Familiarity with Agile/Scrum methodologies

The Senior Database Administrator will provide senior-level database administration and sustainment support for the GEOMAP platform and associated mission systems. This role is responsible for maintaining database availability, performance, integrity, security, and recoverability across development, test, staging, and production environments. The Database Administrator will support day-to-day operations, troubleshooting, patching, monitoring, backup and recovery, and database change implementation while working closely with software, cloud, DevSecOps, testing, and production support teams. *This position is contingent upon contract award.* Responsibilities - Administer, monitor, maintain, and optimize enterprise database environments supporting GEOMAP applications and services. - Ensure database availability, integrity, performance, and reliability across development, test, staging, and production environments. - Perform database installation, configuration, patching, upgrades, and routine maintenance activities. - Troubleshoot and resolve database issues involving performance, access, replication, connectivity, storage, and application integration. - Execute and maintain backup, recovery, restore, and disaster recovery procedures for mission-critical database systems. - Support implementation of database changes, schema updates, data refreshes, and environment synchronization activities. - Monitor database health, capacity, and usage trends and recommend improvements to support performance and sustainment objectives. - Review and implement database security controls including account management, permissions, auditing, encryption, and vulnerability remediation. - Collaborate with software developers, cloud engineers, DevSecOps personnel, testers, and help desk or production support staff to resolve issues and support releases. - Maintain database documentation including procedures, configurations, recovery plans, support guides, and operational runbooks. - Support compliance with configuration management, cybersecurity, and operational standards applicable to secure mission systems. - Provide senior technical support for high-priority incidents, sustainment actions, and special database-related efforts as directed. - Performs other related duties as assigned. Qualifications - Active Secret clearance required. - Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related field. Relevant experience may be substituted for education where appropriate. - 8+ years of experience in database administration, database operations, or related technical roles. - Experience administering enterprise database platforms such as PostgreSQL, SQL Server, Oracle, or similar technologies. - Experience with database monitoring, performance tuning, backup and recovery, patching, and production troubleshooting. - Experience supporting secure enterprise or mission-critical systems in production environments. - Experience working across development, testing, and production support teams in Agile or DevSecOps delivery environments. - Strong understanding of database security, user access controls, auditing, and data protection practices. - Strong analytical, troubleshooting, documentation, and communication skills. - Ability to work effectively across cross-functional teams in a fast-paced DoD mission environment. Preferred - Experience supporting AWS-hosted or cloud-based database environments. - Experience supporting geospatial data environments, GIS platforms, or Esri-related systems. - Experience with replication, high availability, disaster recovery, and continuity planning for enterprise databases. - Familiarity with RMF, STIGs, vulnerability remediation, and secure system hardening practices. - Relevant database, cloud, or cybersecurity certifications preferred. About Us Diné Development Corporation (DDC) is a Navajo Nation owned family of companies that provides government agencies and commercial organizations with high-quality IT, professional, environmental, and research and development services. DDC is dedicated to empowering the Navajo Nation and communities we serve. Benefits Eligible full-time employees receive a comprehensive benefits package, including medical, dental, vision, life and disability coverage, retirement savings with company match, paid time off, voluntary supplemental benefits, and access to an employee assistance program. The package also includes educational assistance, with tuition reimbursement. EEO Statement This contractor and subcontractor shall abide by the requirements of 41 CFR 60-1.4(a), 60-300.5(a) and 60-741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity, national origin, or for inquiring about, discussing, or disclosing information about compensation, or any other basis prohibited by law. We participate in E-Verify.

Dinè Source is seeking an expert Senior Database Modeler to design, implement, and maintain the highly secure Oracle database environment. The ideal candidate will be a subject matter expert in advanced Oracle security features and will be responsible for translating stringent Zero Trust and IL5 security requirements into a robust, scalable, and enforceable database architecture. You will be the primary steward of the database schema and its underlying security model, ensuring data is protected at every layer through sophisticated access controls and encryption. Responsibilities - Design, implement, and manage the logical and physical data models for the Oracle schema, ensuring alignment with strict security and performance requirements. - Serve as the technical lead for implementing and enforcing multi-layered database security controls, with a primary focus on Oracle Label Security (OLS) and Oracle Database Vault (DV). - Develop and maintain a secure data access layer, ensuring all application data access occurs exclusively through definer-rights PL/SQL packages and secured views. - Create and configure Oracle Label Security (OLS) policies, including hierarchical security levels, data compartments, and organizational groups to enforce row-level data access. - Establish and manage Database Vault (DV) realms and command rules to protect base tables and critical packages from unauthorized access, including privileged database administrator accounts. - Implement Virtual Private Database (VPD/FGAC) policies as an additional layer of defense for filtering data based on session context. - Collaborate closely with Java application developers to define the PL/SQL API contract for data access and to ensure the correct and secure propagation of end-user session context. - Implement and configure data-at-rest encryption using Transparent Data Encryption (TDE) and column-level masking for PII using Oracle Data Redaction. - Ensure the database design supports comprehensive and immutable auditing by integrating session context (CLIENT_IDENTIFIER, MODULE, ACTION) into all relevant policies and triggers. - Uphold and contribute to the evolution of database security standards, ensuring ongoing compliance with Zero Trust and IL5 architectural principles. - Performs other related duties as assigned. Qualifications Required Skills and Qualifications - Must be a US citizen with the ability to obtain Public Trust clearance. - Working experience as an Oracle Database Modeler, Database Architect, or a similar role in a security-focused environment. - Deep, hands-on expertise with implementing and managing advanced Oracle security features, specifically: - Oracle Label Security (OLS) - Oracle Database Vault (DV) - Proven track record of designing and building secure data access APIs using PL/SQL packages, stored procedures, and views. - Strong proficiency in PL/SQL and a deep understanding of how to build a secure, definer-rights-based API layer. - Expert knowledge of Oracle's session context mechanisms (SYS_CONTEXT, DBMS_SESSION) and their use in enforcing security policies. - Solid understanding of relational database design principles and performance tuning. - Familiarity with secure network connectivity concepts for databases (e.g., TCPS/TLS). Preferred Qualifications - Experience designing database solutions for compliance with government or military security standards (e.g., DoD IL5, DISA STIGs). - Practical experience applying Zero Trust security principles to a database environment. - Hands-on experience with Oracle Transparent Data Encryption (TDE) and Oracle Data Redaction. - Familiarity with high-availability Oracle solutions such as Real Application Clusters (RAC) or Data Guard. - Understanding of application-level concerns, including JDBC connection pooling and the challenges of context management. - Knowledge of enterprise identity management (e.g., Microsoft Entra ID) and secrets management solutions (e.g., HashiCorp Vault, CyberArk). About Us Diné Development Corporation (DDC) is a Navajo Nation owned family of companies that provides government agencies and commercial organizations with high-quality IT, professional, environmental, and research and development services. DDC is dedicated to empowering the Navajo Nation and communities we serve. Benefits Eligible full-time employees receive a comprehensive benefits package, including medical, dental, vision, life and disability coverage, retirement savings with company match, paid time off, voluntary supplemental benefits, and access to an employee assistance program. The package also includes educational assistance, with tuition reimbursement Equal Opportunity Statement This contractor and subcontractor shall abide by the requirements of 41 CFR 60‑1.4(a), 60‑300.5(a), and 60‑741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity, national origin, or for inquiring about, discussing, or disclosing information about compensation, or any other basis prohibited by law. We participate in E‑Verify.

• Play a crucial role in designing and implementing efficient data solutions for large, highly transactional enterprise systems. • Architect cloud database solutions. • Write programming scripts, create database structures, and ensure secure, reliable data backup and recovery. • Collaborate across technical and business teams to deliver effective data solutions. • Conduct technology assessments and support modernization initiatives. • Manage user access, secure systems, and implement recovery techniques for system breaches. • Maintain accurate documentation of data architecture, design, and development processes. • Design databases according to approved architectural standards to improve overall system performance.