Senior Database Administrator Job at Randstad (North York)

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Senior Database Administrator

We are seeking a highly accomplished and multi-faceted Senior Database Administr...

Location

Canada , Toronto

Salary:

Not provided

Randstad

Expiration Date

August 08, 2026

Requirements

7 to 10+ years of progressive experience in Database Administration
Deep technical mastery administering cloud database environments, with an explicit focus on Azure SQL Database, Azure SQL Managed Instance, and SQL Server on Azure Virtual Machines
Hands-on experience provisioning and managing cloud-native data services, including virtual networks, private endpoints, cloud storage, Databricks Lakehouses, and Azure Data Factory
Expert knowledge of performance tuning tools, including Azure SQL Query Store analysis, Intelligent Performance features, TempDB optimization, and mitigating cloud throttling thresholds
Strong background in Unix and Linux operating systems, shell scripting, database query languages, and distributed architectures (such as multi-node Oracle RAC configurations, Oracle EBS R12.2, Data Guard, or WebLogic setups)
Solid understanding of enterprise information management principles, data classification frameworks, and database auditing routines
Proven experience ensuring full database system alignment with public-sector regulatory obligations and health information privacy mandates (such as PHIPA/PHIPPA)
Practical experience running data operations under structured Incident, Change, and Configuration Management governance models
Superior critical thinking and evaluative skills to decompose performance bottlenecks, execute impact analyses, and establish automatic tuning rules
Excellent written, verbal, and presentation communication skills, with polished ease when explaining complex database trade-offs to business partners and technology squads

Job Responsibility

Formulate physical database designs, install, configure, migrate, and administer enterprise-tier database management systems (DBMS)
Oversee cloud data repositories, virtual machines, disks, key vaults, and multi-cloud database environments, ensuring high reliability across infrastructures
Design, construct, and fine-tune secure, automated data pipelines extending from primary source environments down to end-user presentation tiers
Conduct advanced database troubleshooting, analyze system wait statistics, execute input/output (IO) analyses, and deploy query optimization and indexing strategies
Act as a central subject matter expert on data warehouse architectures, executing upgrades, multi-node configurations, cloning, and tech-stack expansions
Direct long-term storage growth forecasting, capacity planning, resource sizing, and platform life-cycle management for mission-critical setups
Enforce cloud authorization models, configure role-based access controls (RBAC), manage key systems, and apply transparent data encryption (TDE) alongside data masking protocols
Manage environment patches, maintenance packs, and system releases following strict Information Technology Infrastructure Library (ITIL) aligned configuration management procedures
Research, isolate, and implement active cybersecurity remediations, checking firewall rules and network security boundaries to mitigate platform threats
Function as a premier senior technical authority, providing architectural alignment, technical blueprints, and operational mentorship to cross-functional engineering teams

Fulltime

Senior Database Administrator

We’re hiring a Senior Database Administrator to support and optimize enterprise ...

Location

United States , Naperville

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

10+ years of experience managing and administering databases within large-scale, enterprise-level environments
Deep expertise in relational database systems, with a strong focus on Microsoft SQL Server and PostgreSQL
exposure to MySQL is a plus
Hands-on experience working with AWS database platforms and infrastructure, including RDS, Aurora, Redshift, and databases hosted on EC2 instances
Strong capabilities in performance optimization, including query tuning, execution plan analysis, and effective indexing strategies
Solid background in database development, such as designing schemas, building stored procedures, and implementing data-driven business logic
Experience leading or contributing to database migration and modernization initiatives across on-prem, cloud, and hybrid environments
Skilled in scripting and automation using tools like Python, PowerShell, or Bash to streamline database operations
Excellent communication and problem-solving skills, with a track record of working independently and owning complex database projects end-to-end
All applicants applying for U.S. job openings must be legally authorized to work in the United States.

Job Responsibility

Manage and optimize SQL Server, PostgreSQL, and related database environments
Ensure high availability, reliability, and disaster recovery readiness
Troubleshoot and improve performance through query tuning, indexing, and workload analysis
Design and maintain database objects including schemas, stored procedures, and data models
Translate business requirements into scalable database solutions in partnership with stakeholders
Support cloud and on-prem database migrations and modernization efforts
Oversee backup, recovery, and data protection strategies
Implement monitoring and improve visibility into database performance and health
Automate routine tasks using scripting tools and improve operational efficiency

What we offer

medical, vision, dental, and life and disability insurance
company 401(k) plan

Senior Database Administrator

Vention is a global engineering partner to tech leaders and fast-growing startup...

Location

Poland , Gdansk

Salary:

10000.00 PLN / Month

Vention

Expiration Date

Until further notice

Requirements

Strong experience with relational databases in high-load, production systems
Solid understanding of SQL, query optimization, indexing, and performance tuning
Experience with replication, backup, and recovery concepts in SQL databases
Knowledge of PostgreSQL, MySQL, or similar relational database systems
Strong Linux administration skills
Experience with schema design and database troubleshooting
Ability to proactively detect and solve performance issues
Understanding of database security best practices
B2 level of English, both written and spoken

Job Responsibility

Improve and maintain database environments with a focus on scalability, performance, and reliability
Act as a bridge between Architecture, Development, and Data Science teams on database topics
Identify, investigate, and resolve performance issues end-to-end (from triage to production validation)
Optimize high-load MySQL systems (50k+ QPS) and ensure readiness for data growth
Review and improve database schemas, queries, and application database changes before release
Support database design and evolution together with engineering teams
Improve monitoring, tooling, and processes to detect issues early (performance, security)
Ensure database security best practices and compliance standards
Contribute to incident management and help meet SLOs with Platform Reliability teams
Maintain clear and up-to-date database documentation

What we offer

EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
Licenses for AI tools: GitHub Copilot, Cursor, and others
Private medical care with LuxMed
Kafeteria MyBenefit credits for stores, restaurants, and cafés
Access to a Multisport membership to stay active
Glasses reimbursement program
Referral bonuses for bringing in new talent

Fulltime

Senior Database Administrator

Senior Database Administrator at Vention - improve and maintain database environ...

Location

Poland , Krakow

Salary:

10000.00 PLN / Month

Vention

Expiration Date

Until further notice

Requirements

Strong experience with relational databases in high-load, production systems
Solid understanding of SQL, query optimization, indexing, and performance tuning
Experience with replication, backup, and recovery concepts in SQL databases
Knowledge of PostgreSQL, MySQL, or similar relational database systems
Strong Linux administration skills
Experience with schema design and database troubleshooting
Ability to proactively detect and solve performance issues
Understanding of database security best practices
B2 level of English, both written and spoken

Job Responsibility

Improve and maintain database environments with a focus on scalability, performance, and reliability
Act as a bridge between Architecture, Development, and Data Science teams on database topics
Identify, investigate, and resolve performance issues end-to-end (from triage to production validation)
Optimize high-load MySQL systems (50k+ QPS) and ensure readiness for data growth
Review and improve database schemas, queries, and application database changes before release
Support database design and evolution together with engineering teams
Improve monitoring, tooling, and processes to detect issues early (performance, security)
Ensure database security best practices and compliance standards
Contribute to incident management and help meet SLOs with Platform Reliability teams
Maintain clear and up-to-date database documentation

What we offer

EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
Licenses for AI tools: GitHub Copilot, Cursor, and others
Private medical care with LuxMed
Kafeteria MyBenefit credits for stores, restaurants, and cafés
Access to a Multisport membership to stay active
Glasses reimbursement program
Referral bonuses for bringing in new talent

Fulltime

Senior Database Administrator

Vention is a global engineering partner to tech leaders and fast-growing startup...

Location

Poland , Wroclaw

Salary:

Not provided

Vention

Expiration Date

Until further notice

Requirements

Strong experience with relational databases in high-load, production systems
Solid understanding of SQL, query optimization, indexing, and performance tuning
Experience with replication, backup, and recovery concepts in SQL databases
Knowledge of PostgreSQL, MySQL, or similar relational database systems
Strong Linux administration skills
Experience with schema design and database troubleshooting
Ability to proactively detect and solve performance issues
Understanding of database security best practices
B2 level of English, both written and spoken

Job Responsibility

Improve and maintain database environments with a focus on scalability, performance, and reliability
Act as a bridge between Architecture, Development, and Data Science teams on database topics
Identify, investigate, and resolve performance issues end-to-end (from triage to production validation)
Optimize high-load MySQL systems (50k+ QPS) and ensure readiness for data growth
Review and improve database schemas, queries, and application database changes before release
Support database design and evolution together with engineering teams
Improve monitoring, tooling, and processes to detect issues early (performance, security)
Ensure database security best practices and compliance standards
Contribute to incident management and help meet SLOs with Platform Reliability teams
Maintain clear and up-to-date database documentation

What we offer

EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
Licenses for AI tools: GitHub Copilot, Cursor, and others
Private medical care with LuxMed
Kafeteria MyBenefit credits for stores, restaurants, and cafés
Access to a Multisport membership to stay active
Glasses reimbursement program
Referral bonuses for bringing in new talent

Fulltime

Senior Database Administrator

Vention is a global engineering partner to tech leaders and fast-growing startup...

Location

Poland , Lodz

Salary:

Not provided

Vention

Expiration Date

Until further notice

Requirements

Strong experience with relational databases in high-load, production systems
Solid understanding of SQL, query optimization, indexing, and performance tuning
Experience with replication, backup, and recovery concepts in SQL databases
Knowledge of PostgreSQL, MySQL, or similar relational database systems
Strong Linux administration skills
Experience with schema design and database troubleshooting
Ability to proactively detect and solve performance issues
Understanding of database security best practices
B2 level of English, both written and spoken

Job Responsibility

Improve and maintain database environments with a focus on scalability, performance, and reliability
Act as a bridge between Architecture, Development, and Data Science teams on database topics
Identify, investigate, and resolve performance issues end-to-end (from triage to production validation)
Optimize high-load MySQL systems (50k+ QPS) and ensure readiness for data growth
Review and improve database schemas, queries, and application database changes before release
Support database design and evolution together with engineering teams
Improve monitoring, tooling, and processes to detect issues early (performance, security)
Ensure database security best practices and compliance standards
Contribute to incident management and help meet SLOs with Platform Reliability teams
Maintain clear and up-to-date database documentation

What we offer

EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
Licenses for AI tools: GitHub Copilot, Cursor, and others
Private medical care with LuxMed
Kafeteria MyBenefit credits for stores, restaurants, and cafés
Access to a Multisport membership to stay active
Glasses reimbursement program
Referral bonuses for bringing in new talent

Fulltime

Senior Database Administrator

Location

Poland , Warsaw

Salary:

Not provided

Vention

Expiration Date

Until further notice

Requirements

Strong experience with relational databases in high-load, production systems
Solid understanding of SQL, query optimization, indexing, and performance tuning
Experience with replication, backup, and recovery concepts in SQL databases
Knowledge of PostgreSQL, MySQL, or similar relational database systems
Strong Linux administration skills
Experience with schema design and database troubleshooting
Ability to proactively detect and solve performance issues
Understanding of database security best practices
B2 level of English, both written and spoken

Job Responsibility

Improve and maintain database environments with a focus on scalability, performance, and reliability
Act as a bridge between Architecture, Development, and Data Science teams on database topics
Identify, investigate, and resolve performance issues end-to-end (from triage to production validation)
Optimize high-load MySQL systems (50k+ QPS) and ensure readiness for data growth
Review and improve database schemas, queries, and application database changes before release
Support database design and evolution together with engineering teams
Improve monitoring, tooling, and processes to detect issues early (performance, security)
Ensure database security best practices and compliance standards
Contribute to incident management and help meet SLOs with Platform Reliability teams
Maintain clear and up-to-date database documentation

What we offer

EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
Licenses for AI tools: GitHub Copilot, Cursor, and others
Private medical care with LuxMed
Kafeteria MyBenefit credits for stores, restaurants, and cafés
Access to a Multisport membership to stay active
Glasses reimbursement program
Referral bonuses for bringing in new talent

Fulltime

Senior Database Administrator

Our client is looking for a Senior Database Administrator for a 11 month contrac...

Location

Canada , Toronto

Salary:

Not provided

Randstad

Expiration Date

June 21, 2026

Requirements

Oracle E-Business Suite installation and configuration experience
Experience and expert knowledge of Oracle E-Business Suite (multi-tier implementation)
Expert level knowledge of Oracle 26ai database administration, maintenance, security implementation, upgrade and patching, database performance tuning, sizing and capacity planning, database backup and recovery using RMAN
Expertise required in Oracle E-Business Suite installation, configuration, maintenance, upgrade and cloning. migrating e-Business Suite Applications to Oracle Cloud Infrastructure. migrating Oracle technologies from Unix (Solaris) to Oracle Enterprise
Knowledge of OAG, OUD, OID, DIP, ODSM EBS Webgate and Access gate
Expert knowledge of Upgrading Oracle 19c to Oracle 26ai

Job Responsibility

Upgrade e-Business Suite and TPE Oracle databases from Oracle 19c to Oracle 26ai
Performance tuning of e-Business Suite R12.2/26ai in multi-node RAC environment
Install, Configure, deploy Oracle Access Governance (OAG)
Install, Configure, deploy Oracle Mobile Approvals for EBS
Install, Configure, deploy Oracle Enterprise Manager (OEM) or another Oracle-recommended solution
Update Disaster Recovery technical procedures for IFIS CORE and TPE
Provide day-to-day operational and maintenance support to the existing e-Business Suite application environments
Document all new procedures and processes and deliver knowledge transfer sessions to the EFP (Enterprise FinTech Practice) Oracle e-Business Suite DBAs

What we offer

Earn a competitive rate within the industry
Potential for extension

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