Database Engineer
Listed on 2026-07-30
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IT/Tech
Database Administrator, Data Engineering, Cloud Computing: Infrastructure & Operations
Description
This role is responsible for the installation, configuration, maintenance, and performance tuning of Microsoft SQL Server databases. They ensure the security, availability, and reliability of database systems that support business applications and data needs. This role also prioritizes the ongoing maintenance of enterprise-level open-source database systems. Lastly, it ensures the stability, reliability, scalability, and security of mission‑critical data platforms that support business operations and analytics.
The ideal candidate will have extensive hands‑on experience managing large, high‑availability MySQL and PostgreSQL environments—both on‑premises and in the cloud. They will play a key role in database architecture planning, automation of operational workflows, and mentoring junior DBAs. The Senior DBA works closely with development, Dev Ops, and infrastructure teams to optimize database performance, streamline deployments, and ensure seamless data operations across multiple environments.
This role is fully onsite at the DOT headquarters in Washington DC.
Job Description and Duties- Position is required to be full‑time onsite at DOT HQ, Washington DC.
- Assist in driving, standardising, and managing unified configuration management database.
- Install and configure Microsoft SQL Server instances and tools (SSMS, SSRS, SSIS, SSAS).
- Set up new databases, servers, and related infrastructure.
- Manage SQL Server clustering, replication, and high availability solutions.
- Monitor and maintain database performance, integrity, and security.
- Perform regular database maintenance tasks (index optimisation, statistics updates, consistency checks).
- Plan and perform database upgrades, patches, and migrations.
- Troubleshoot database errors, bottlenecks, and performance issues.
- Analyse query execution plans and optimise SQL queries.
- Monitor system performance using tools like SQL Profiler, Extended Events, and Performance Monitor.
- Identify and resolve slow‑running queries or deadlocks.
- Manage user accounts, roles, and permissions to maintain data security.
- Audit database activities and log changes.
- Maintain detailed documentation of database environments, configurations, and changes.
- Generate reports for performance metrics, growth trends, and usage statistics.
Education and Experience
- Must have a minimum of 10 years of related experience as a database administrator, specialising in supporting Oracle environment.
- Oracle and SQL Certified.
- Proficient in SQL Cluster, Always‑On Cluster, On‑premises to Azure Migration.
- Experience with Azure Managed Instance, SQL STIG (Security Technical Implementation Guides), Transparent Data Encryption (TDE).
- Strong knowledge and experience in SQL Server and Oracle database administration, including installation, configuration, optimisation, and maintenance.
- Expertise in managing SQL Server instances (2019/2017/2016/2014/2012) and Oracle databases on various platforms, including VMWare, Azure (IaaS/PaaS), and on‑premises.
- Experience with Oracle RAC, Oracle Enterprise Manager, RMAN backups, Oracle Data Guard, and setting up Oracle RAC on Windows.
- Proficiency in Linux shell scripting and experience with AWS RDS and EC2‑based databases.
- Ability to troubleshoot performance issues, analyse SQL execution plans, and optimise database performance.
- Experience with database security solutions, including Transparent Data Encryption (TDE) and Oracle STIG compliance.
- Knowledge of AWS concepts required for performing DBA operations on AWS cloud.
- Experience with DR testing, making recommendations, and providing on‑call support.
- Candidate must be a U.S. citizen or green card holder who has resided in the U.S. for at least 3 years and the ability to obtain a public trust.
- Experience supporting a 24×7 operations environment.
- Deploy and manage SQL Server on various platforms, including VMWare, Azure (IaaS/PaaS), and on‑premises. Also, build and manage Azure managed instances and Azure managed databases.
- Install, configure, and manage SQL Server instances (2022/2019/2017/2016/2014/2012) and Oracle databases on Linux / Windows platforms.
- Facilitate database migration…
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