Senior Database Administrator, DBA

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November 6

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OnBuy

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Marketplace • eCommerce • Retail

OnBuy is a UK-based online marketplace that offers a wide variety of products ranging from home and garden essentials, health and beauty products, electronics, and more. Unique in its approach, OnBuy does not sell its own products but provides a platform for small businesses and trusted brands to reach a broad audience. It is known for offering cashback on all purchases, enhancing customer savings with every transaction. With over 35 million products across diverse categories, OnBuy positions itself as a trusted and fair platform for both buyers and sellers, ensuring transparency and protection for each transaction.

51 - 200 employees

Founded 2016

🏪 Marketplace

🛍️ eCommerce

🛒 Retail

💰 Debt Financing on 2021-07

📋 Description

• Administer high availability‑ setups in CloudSQL.* • Performance tuning: indexing, partitioning, query tuning, load balancing and resource sizing. • Cost optimisation for Cloud SQL and BigQuery and lifecycle policies. • Troubleshoot performance and incidents; lead incident response, MTTR ownership, RCA and continuous improvements. • Provide 2nd-line DBA support: own and resolve escalated database incidents and requests. • Backup, restore and disaster recovery: author and practice DR plans, run restore drills, validate backups and enforce retention. • Security and compliance: manage IAM/ACLs, encryption (at rest/in transit), secrets management, access reviews and audit logging. • Execute database upgrades and change management: plan/coordinate upgrades with rollback plans and compatibility testing. • Automate as much as possible: IaC (Terraform/Deployment Manager), CI/CD for schema and infra changes, automated remediation and runbooks. • Capacity planning - forecasting growth. • Maintaining, monitoring and observability of database solutions; own dashboards, SLOs, logging, metrics and actionable alerts. • Cost and resource governance: tagging, quota controls, cost monitoring and chargeback recommendations. • Mentoring and documentation: maintain runbooks, knowledge base, and coach engineers on DB best practices. • Vendor/third‑party management: manage managed‑service support relationships and SLAs.

🎯 Requirements

• **Databases**: Cloud SQL (MySQL) and BigQuery; strong knowledge of indexing, query plans, schema refactoring and OLTP patterns. • **Cloud: **Production experience with GCP. • **Scripting & IaC**: Terraform; Ansible, Git, Bash. • **Tooling**: Query Insights, SQL Diagnostic Manager, MySQL Workbench tooling. • **Monitoring & logging**: Cloud Monitoring, New Relic or equivalent; database alerting strategy. • **Security & compliance**: IAM, VPC, encryption, secrets management and audit logging. • **Operational practices**: HA/replication, backups, DR, change management and on-call‑ experience. • **Communication**: Strong documentation, runbook writing and stakeholder collaboration. • **NoSQL & Caching**: Couchbase operations and Memorystore/Redis experience. • **Tooling: **DataStream, Airbyte,ORM, Laravel. • **Containers & orchestration**: Kubernetes basics where DB tooling/operators are used. • **Agile and Jira**: experience in Agile teams (Scrum/Kanban); create/refine user stories, estimate and prioritise work, and use Jira to manage boards and track progress. • **Certifications**: Google Cloud Professional Data Engineer or Cloud Architect

🏖️ Benefits

• Company Equity- In return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build. • 25 days annual leave + Bank Holidays • 1 extra day off for your Birthday • Employee Assistance Programme • Perks at Work benefit platform • Opportunities for career development and progression