Onectus

/ TEAMS · Oracle RAC Database Engineering

Hire Oracle RAC DBAs for enterprise database availability.

Recruit database specialists who understand Oracle RAC cluster behavior, shared storage, availability, controlled patching and the recovery requirements of business-critical workloads.

2,000+ engineers in our active talent network · Regional recruiters

/ SYSTEM STACK

CLUSTER01

Oracle Clusterware · OCR / Voting

STORAGE02

ASM · Disk groups · I/O

DATABASE03

RAC instances · Services

RESILIENCE04

TAF / FAN · Backup · Data Guard

OPERATIONS05

AWR · Patching · Recovery

/ AVAILABLE TO HIRE

Specialist engineering profiles.

Profiles show the experience we can source. Individual candidate availability is confirmed after enquiry.

Pavel V.

ORACLE

Senior Oracle RAC DBA — Clusterware, ASM & Availability

Available

13+ years of experience · Czechia

Oracle RAC DBA — Clusterware, ASM & Availability with 13 years in production systems, focused on Oracle RAC DBA — Clusterware, ASM & Availability and Production systems.

Oracle RAC DBA — Clusterware, ASM & AvailabilityProduction systemsTechnical delivery

Languages: Czech, English B2+

Ema K.

ORACLE

Senior Oracle RAC DBA — Clusterware, ASM & Availability

Available

8+ years of experience · Lithuania

Oracle RAC DBA — Clusterware, ASM & Availability with 8 years in production systems, focused on Production systems and Technical delivery.

Production systemsTechnical deliveryOracle RAC DBA — Clusterware, ASM & Availability

Languages: Lithuanian, English B2+

Marek D.

ORACLE

Mid-level Oracle RAC DBA — Clusterware, ASM & Availability

Inquire availability

3+ years of experience · Poland

Oracle RAC DBA — Clusterware, ASM & Availability with 3 years in production systems, focused on Technical delivery and Oracle RAC DBA — Clusterware, ASM & Availability.

Technical deliveryOracle RAC DBA — Clusterware, ASM & AvailabilityProduction systems

Languages: Polish, English B2+

Elena R.

ORACLE

Mid+ Oracle RAC DBA — Clusterware, ASM & Availability

Available

6+ years of experience · Bulgaria

Oracle RAC DBA — Clusterware, ASM & Availability with 6 years in production systems, focused on Oracle RAC DBA — Clusterware, ASM & Availability and Production systems.

Oracle RAC DBA — Clusterware, ASM & AvailabilityProduction systemsTechnical delivery

Languages: Bulgarian, English B2+

/ Engineering teams

High-availability database roles need technology-specific scrutiny.

Onectus sources engineers for complex infrastructure and production data systems. Oracle RAC work requires its own Clusterware, ASM, service failover and operational disciplines. We validate those exact capabilities per candidate rather than treating PostgreSQL operations or generic SQL expertise as substitutes.

/ Technical specializations

Oracle RAC expertise across cluster, storage and service continuity.

RAC engineering blends database tuning with shared storage, interconnects, cluster health, patching and client failover behavior. The brief should define which responsibilities the DBA owns.

01 / 06

Oracle Clusterware and quorum

Grid Infrastructure, CSS/CRS, OCR, voting disks, node membership, interconnect health and cluster startup.

CRSOCRClusterware
02 / 06

ASM and shared storage

ASM diskgroups, redundancy, rebalance, capacity, storage latency and backup coordination.

ASMDiskgroupsStorage
03 / 06

RAC instances and services

Instance affinity, service placement, FAN/TAF application behavior and workload continuity.

RACServicesFAN
04 / 06

Performance and diagnostics

AWR/ASH, wait events, global cache traffic, interconnect contention and SQL plan assessment.

AWRASHCache Fusion
05 / 06

Patching and upgrades

Rolling patch assumptions, Oracle home management, RU compatibility and rehearsed change windows.

PatchingRUUpgrades
06 / 06

Recovery and architecture boundaries

RMAN, restore tests, DR objectives and distinctions between RAC availability and Data Guard disaster recovery.

RMANData GuardRecovery

/ Project scenarios

Business-critical Oracle RAC responsibilities.

01

Stabilize cluster availability

Diagnose instance eviction, Clusterware incidents, service failover and interconnect issues.

02

Investigate cross-instance contention

Correlate wait events, cache fusion, SQL plans and storage/network factors.

03

Plan low-risk patching

Sequence clusterware and database patches with compatibility checks and rollback planning.

04

Rehearse recovery and DR

Validate RMAN restores, service behavior and handoff to Data Guard protection.

/ Practical evaluation

Verify real RAC operational decision-making.

Technical interviews should go beyond conventional Oracle SQL tuning and test cluster-specific availability, diagnostics and recovery.

  1. 01

    Cluster failover

    Can they explain node membership, instance eviction, service relocation and troubleshooting?

  2. 02

    Storage and interconnect

    How did they investigate ASM capacity, global cache behavior or interconnect latency?

  3. 03

    Performance

    What evidence did AWR/ASH, wait events and SQL plans provide in a real incident?

  4. 04

    Changes and recovery

    How were rolling patches, RMAN restores and DR responsibilities handled safely?

/ Sourcing process

Define the RAC topology before recruiting.

01 / 04

Map database operations

Oracle/RAC versions, nodes, ASM, workloads, AWR, backups, RTO/RPO and on-call.

02 / 04

Activate Oracle-specific channels

Find DBAs with proven RAC, Clusterware and high-availability operations.

03 / 04

Assess production incidents

Review eviction, ASM, interconnect, performance, upgrades and recovery examples.

04 / 04

Agree delivery conditions

Confirm access, maintenance windows, authorization, availability and support ownership.

Profiles, availability and engagement terms are confirmed for each request.

/ Questions

Oracle RAC DBA hiring questions

01Is Oracle RAC expertise interchangeable with Oracle database administration?

No. RAC adds shared-database instances, Clusterware, ASM, services and interconnect behavior to ordinary Oracle DBA responsibilities.

02Can candidates cover both RAC and Data Guard?

Yes when required, but RAC cluster availability and Data Guard standby/disaster recovery are different concerns and must be assessed separately.

03Can you target ASM and Clusterware troubleshooting?

Yes. Share RAC versions, diskgroup design, voting/OCR components and known incidents to qualify precise experience.

04Can Oracle RAC engineers support planned patching?

Yes. We screen rolling-change experience, version compatibility, maintenance controls and tested rollback processes.

/ Onectus · TEAMS

Describe the systems you operate.

Tell us the technology, production responsibilities, experience level and working model. We'll activate the appropriate engineering sourcing channels.

Request engineers
    ×
    This website uses cookies
    This website uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy. Read more
    Save & Close
    Accept
    Decline all
    Show details Hide details
    Cookie declaration
    About cookies
    Performance
    Targeting
    Unclassified
    Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
    Cookie report
    Name Domain Expiration Description
    _ga .onectus.com 2 years This cookie name is associated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports.
    Targeting cookies are used to identify visitors between different websites, eg. content partners, banner networks. Those cookies may be used by companies to build a profile of visitor interests or show relevant ads on other websites.
    Cookie report
    Name Domain Expiration Description
    YSC .youtube.com Session This cookie is set by YouTube to track views of embedded videos.
    VISITOR_INFO1_LIVE .youtube.com 6 months This cookie is set by Youtube to keep track of user preferences for Youtube videos embedded in sites;it can also determine whether the website visitor is using the new or old version of the Youtube interface.
    IDE .doubleclick.net 1 year This cookie is set by Doubleclick and carries out information about how the end user uses the website and any advertising that the end user may have seen before visiting the said website.
    Unclassified cookies are cookies that do not belong to any other category or are in the process of categorization.
    Cookie report
    Name Domain Expiration Description
    _ga_TNPH6J7794 .onectus.com 2 years
    Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser. You can change your consent to cookie usage at any time on our Privacy Policy page.
    Cookies consent ID:
    Cookie report created by Cookie-Script