Markham, On – python – unix/linux Jobs – 52 Openings This Week

PostgreSQL Database Administrator (Production DBA)
Centric Software —Toronto, ON
- $136,000 a year
- Full-time
- Remote
- Azure
- Oracle
- Databases
Cryptography Engineer
Capco —Toronto, ON
- $118,000–$152,000 a year
- Oracle
- Databases
- No university degree
- Disability insurance
Quick apply
CyberArk Support Engineer
KeyData Cyber —Toronto, ON
- $35–$45 an hour
- Immediate opening
- Remote
- Azure
- Computer Science
- Engineering
Quick apply
Senior DevOps Engineer
Fullscript —Toronto, ON
- Full-time
- Remote
- DevOps
- Databases
- AWS
- Paid time off
Quick apply
11d
Platform Services & Cloud Engineering, Senior Specialist
Interac Corp. —Toronto, ON
- $110,000–$130,000 a year
- Full-time
- Hybrid work
- Computer Science
- DevOps
- Engineering
Site Reliability Engineer Leader
Kyndryl —Toronto, ON
- Full-time
- Remote
- Azure
- Computer Science
- Engineering
1d
Senior Site Reliability Engineer, Kong Konnect
Kong —Toronto, ON
- $144,780–$202,825 a year
- Full-time
- Azure
- Computer Science
- Databases
Engineering Manager - CX/CCaaS Platform (Remote Canada or Colombia)
Sangoma —Toronto, ON
- Full-time
- Remote
- Azure
- Computer Science
- Engineering
- Dental care
- Paid time off
Quick apply
Senior PostgreSQL System Administrator
Recutify Inc. —Markham, ON
- Full-time
- Azure
- Oracle
- Computer Science
Quick apply
Murex Tech Integration Analyst
Luxoft —Toronto, ON
- Computer science
- Oracle
- Computer Science
23h
Data Engineer
Scotiabank —Toronto, ON
- Oracle
- DevOps
- Java
- Tuition reimbursement
kdb+ Engineer
Data Intellect —Toronto, ON
- Full-time
- Hybrid work
- Azure
- AWS
- Linux
Quick apply
Software Engineering Manager - UCaaS (Remote Canada or Colombia)
Sangoma —Toronto, ON
- Full-time
- Remote
- Azure
- Computer Science
- Engineering
- Dental care
- Paid time off
Quick apply
Senior Business System Analyst
BMO Financial Group —Toronto, ON
- $75,900–$141,900 a year
- Full-time
- SQL
- AWS
- Linux
- Tuition reimbursement
- Life insurance
Senior Data Quality Test Engineer - Snowflake
Cognizant —Toronto, ON
- $70,000–$90,000 a year
- Full-time
- Hybrid work
- Azure
- Databases
- SQL
12d
Senior Murex Integration Specialist
Luxoft —Toronto, ON
- DevOps
- English
- Java
Digital Design Engineer, Senior Staff
Marvell —Toronto, ON
- $118,700–$158,300 a year
- Full-time
- Computer Science
- Engineering
- Master's degree
Senior PostgreSQL System Administrator
Galent —Toronto, ON
- Contract
- Azure
- Oracle
- Computer Science
Quick apply
Senior kdb+ Engineer
Data Intellect —Toronto, ON
- Full-time
- Hybrid work
- Azure
- AWS
- Scripting
Quick apply

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PostgreSQL Database Administrator (Production DBA)

Centric Software -
Toronto, ON

Apply Now

Job details

Full-time
$136,000 a year

Qualifications

Performance tuning
Azure
Oracle
Kubernetes
UNIX
Microsoft SQL Server
Google Cloud Platform
MongoDB
Bash (Unix shell)
Databases
SQL
AWS
PostgreSQL
Terraform
New Relic
Scripting
Customer support
Linux
RDS
Communication skills
Python
PowerShell
Shell Scripting
MySQL
High availability

Full job description

About Centric Software:

Centric Software® is a global leader, providing an innovative and AI-enabled product-concept-to-commercialization platform for retailers, brands and manufacturers of all sizes. We equip retail, fashion, luxury, footwear, outdoor, home and consumer goods brands with pioneering best-of-breed solutions to plan, design, develop, source, comply, buy, make, price, allocate, sell and replenish products. Our technology powers brands to streamline processes, drive efficiency and operate with confidence in an ever-changing market.

Our story is one of rapid growth, bold ideas and extraordinary opportunities. We’re here to challenge the status quo—and we’re looking for brilliant people who want to do the same. No matter where you are in the world, this is your chance to be part of something exceptional.

Position Summary

We are seeking a PostgreSQL expert to join our R&D Customer Support team as a Production DBA. This role is focused on bringing deep Postgres expertise in-house to analyze, troubleshoot, and improve production database environments, perform root cause analysis on issues ranging from long-running queries to hosting environment problems and heavy traffic scenarios, and ensure our customers’ PostgreSQL deployments remain healthy, performant, and reliable. While the primary focus is production operations, the DBA will also work across development environments as needed to trace issues to their source and collaborate with engineering on fixes.

Position Details

Job title: PostgreSQL Database Administrator (Production DBA)

Team: R&D – Customer Support

Location: Remote (US/Canada)

Employment Type: Full-time

Compensation: $136K USD

Key Responsibilities

Serve as the PostgreSQL expert and primary Production DBA within the R&D Customer Support team, driving the stability, performance, and reliability of customer-facing database environments.
Perform root cause analysis (RCA) on production incidents spanning query performance, database configuration, infrastructure-level bottlenecks, and traffic/load conditions.
Diagnose and resolve complex PostgreSQL performance, availability, and data-integrity issues, including query tuning, index strategy, vacuum/auto vacuum behavior, and lock contention.
Troubleshoot and analyze production PostgreSQL systems across diverse hosting environments, ensuring performance, availability, and data integrity.
Review execution plans, analyze slow queries, and recommend configuration, schema, or indexing changes to optimize production workloads.
Support customers running PostgreSQL across on-premises, cloud (AWS RDS/Aurora, Azure, GCP), and self-managed deployments.
Work across development and production environments to trace issues to their source and collaborate with engineering on fixes and product improvements.
Advise on high-availability and disaster-recovery architectures including streaming replication, logical replication, failover, backup/restore (pg_basebackup, pgBackRest, WAL-G), and point-in-time recovery.
Create and maintain internal knowledge-based articles, runbooks, and best-practice documentation for the support team.
Mentor support engineers and developers on Postgres internals, SQL tuning, and operational best practices.
Participate in on-call rotation for critical customer escalations as needed.

Required Qualifications

Minimum 5 years of hands-on experience as a PostgreSQL DBA, with deep knowledge of Postgres internals (MVCC, WAL, query planner, locking, buffer management) and operational best practices.
Proven track record managing PostgreSQL in production environments, including incident response, root cause analysis, and performance optimization under heavy traffic.
Strong SQL skills, including query optimization and execution-plan analysis (EXPLAIN / EXPLAIN ANALYZE).
Experience with PostgreSQL performance tuning: indexing strategies, autovacuum, connection pooling (PgBouncer), and configuration tuning (postgresql.conf).
Experience with high availability and replication: streaming replication, logical replication, Patroni, or equivalent.
Experience with backup and recovery tooling such as pgBackRest, WAL-G, pg_basebackup, or Barman.
Proficiency with Linux/Unix operating systems and shell scripting (Bash or similar).
Strong written and verbal communication skills, with the ability to explain complex database concepts to both technical and non-technical audiences.
Located in North America with the ability to work core hours that overlap with the team.

Preferred Qualifications

Experience supporting PostgreSQL on AWS RDS, Aurora Postgres, Azure Database for PostgreSQL, or Google Cloud SQL.
Scripting or automation experience in Python, PowerShell, or similar.
Familiarity with monitoring/observability tooling (Datadog, New Relic, Prometheus, pganalyze, Sentry).
Experience working in a customer-facing or customer-support-adjacent role.
Exposure to additional database platforms (Oracle, SQL Server, MySQL, MongoDB) and migration experience to/from Postgres.
Experience with infrastructure-as-code (Terraform, CloudFormation) and containerized workloads (Kubernetes).

What Success Looks Like

In the first 90 days, the successful candidate will have ramped up on our product and support workflows, taken ownership of escalated Postgres cases, and begun contributing to internal documentation and knowledge sharing. Within six months, they will be the go-to Postgres resource for the team, materially reducing time-to-resolution on database-related customer issues and partnering with engineering on product improvements informed by field data.

Centric Software provides equal employment opportunities to all qualified applicants without regard to race, sex, sexual orientation, gender identity, national origin, color, age, religion, protected veteran or disability status or genetic information.

Apply Now

Refine Your Search

– python – unix/linux jobs in markham, on

PostgreSQL Database Administrator (Production DBA)

Cryptography Engineer

CyberArk Support Engineer

Senior DevOps Engineer

Platform Services & Cloud Engineering, Senior Specialist

Site Reliability Engineer Leader

Senior Site Reliability Engineer, Kong Konnect

Engineering Manager - CX/CCaaS Platform (Remote Canada or Colombia)

Senior PostgreSQL System Administrator

Murex Tech Integration Analyst

Data Engineer

kdb+ Engineer

Software Engineering Manager - UCaaS (Remote Canada or Colombia)

Senior Business System Analyst

Senior Data Quality Test Engineer - Snowflake

Senior Murex Integration Specialist

Digital Design Engineer, Senior Staff

Senior PostgreSQL System Administrator

Senior kdb+ Engineer

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