Rizwan Ansari

About the Candidate

Rizwan Ansari
Senior Database Architect | DBA Manager | Multi-Cloud & Hybrid DB Solutions Expert
📞 +91-8585946563 | 📧 cse.rizwan1992@gmail.com | 📍 Noida / Bangalore, India | Availability:
Immediate
Professional Summary
Accomplished Database Architect & DBA Manager with 12+ years of progressive experience
designing, managing, and scaling enterprise-grade database systems for fintech, ride-hailing, and
telecom industries. Specialized in MySQL, AWS Aurora, PostgreSQL, MongoDB, Oracle, and Redis,
with proven expertise in replication, performance optimization, Terraform automation, and
multi-region HA architectures.
Strong experience in leading DBA teams, implementing Infrastructure-as-Code with Terraform, and
delivering mission-critical, high-performance, and regulatory-compliant (PCI/GDPR) database
platforms. Adept at building cross-functional partnerships with engineering, DevOps, and leadership
teams to ensure secure, scalable, and cost-optimized data solutions.
Core Competencies
● Database Platforms: MySQL, AWS Aurora, Percona XtraDB Cluster, PostgreSQL, MongoDB,
Oracle, Redis, Cassandra (exposure)
● Cloud & Automation: AWS RDS, Aurora, Azure SQL, GCP Cloud SQL, Terraform, Ansible,
Python, Bash, CI/CD (Jenkins)
● High Availability & Replication: GTID replication, Aurora replicas, ProxySQL, Sharding,
Multi-region DR
● Kubernetes & Containers: Helm Charts, StatefulSets, Operator-based DB deployments
● Performance & Scalability: Query tuning, Index optimization, Execution plans, Benchmarking
(HammerDB, PgBench)
● Monitoring & Security: PMM, Netdata, Zabbix, Grafana, Role-based access, Audit logging
● Leadership: DBA Team Management, Strategic roadmaps, Fintech-grade availability &
compliance
Professional Experience
CircleLife (Liberty Wireless Technologies Pvt Ltd) – Bangalore, India
Staff MySQL & PostgreSQL DBA | Apr 2023 – Present
● Designed and managed Percona XtraDB Clusters with GTID replication & ProxySQL,
enabling zero-downtime operations.
● Architected hybrid-cloud solutions with AWS RDS & Aurora, supporting both fintech and
telecom-grade workloads.
● Implemented Kubernetes-based DB deployments with Helm and Operators, enabling
automated provisioning, monitoring, and scaling.
● Conducted benchmark testing (HammerDB, PgBench), reducing query execution times by up
to 35%.
● Built Terraform-driven DBaaS automation for provisioning, failover, and DR testing.
● Provided mentorship to junior DBAs on replication and automation best practices.
Ola Cabs – Bangalore, India
Database Administrator | Apr 2022 – Apr 2023
● Administered multi-region MySQL & Aurora clusters, achieving sub-second failover for
ride-hailing financial transactions.
● Optimized analytical and transactional workloads, reducing transaction latency by 40%.
● Conducted schema refactoring, query rewrites, and index tuning for high-traffic services.
● Partnered with DevOps to deploy containerized MySQL/Aurora databases in staging &
production.
R Systems – Noida, India
Database & System Engineer | Sept 2021 – Apr 2022
● Managed MySQL and MongoDB clusters with PITR, replication, and cross-region DR for
fintech clients.
● Built Python/Bash scripts for backup validation, failover orchestration, and Aurora
replication checks.
● Assisted in Terraform-based provisioning of MySQL/Aurora clusters.
Paytm – Noida, India
Database Administrator | Jan 2019 – Sept 2021
● Handled large-scale MySQL & Oracle environments powering fintech payment workloads.
● Designed and maintained replication topologies across multiple datacenters and AWS regions.
● Integrated Zabbix, PMM, and Grafana for proactive monitoring and alerting.
● Implemented Terraform & Ansible automation for provisioning and scaling Aurora & MySQL
clusters.
● Strengthened compliance with PCI-DSS standards via encryption, access control, and
audit-ready logging.
DewSolutions – Gurgaon, India
Database Administrator | May 2017 – Dec 2018
● Administered MySQL environments supporting e-commerce applications.
● Performed query optimization & schema redesign to improve checkout latency by 30%.
● Designed backup/restore procedures ensuring RPO/RTO compliance.
Software Data (Contract) – Noida, India
Database Administrator | Jan 2016 – Apr 2017
● Managed MySQL databases for enterprise applications.
● Automated daily backups and replication checks with Bash scripting.
● Supported developer teams with performance analysis and indexing strategies.
Infinite Computer Solutions – Bangalore, India
Database Administrator | Oct 2014 – Dec 2015
● Gained foundational experience in MySQL, Linux administration, and database operations.
● Assisted senior DBAs in replication setup, failover testing, and performance monitoring.
Key Projects & Achievements
● Aurora HA Deployment: Designed multi-region Aurora clusters with cross-region
replication, enabling 99.99% availability.
● Terraform Automation: Standardized Aurora/MySQL deployments via Terraform & Ansible for
fintech workloads.
● Hybrid Cloud Replication: Built 3-node Percona cluster + AWS Aurora read replica topology
for global failover readiness.
● Performance Benchmarking: Used HammerDB & PgBench to reduce query execution time by
up to 35%.
● DBA Team Mentorship: Led knowledge-sharing sessions, improving team efficiency and
incident resolution times.
Education & Certifications
● B.Tech in Computer Science – Integral University, Lucknow
● M.S. in Computer Science (Pursuing) – Woolf University
● RHCE – Red Hat Certified Engineer (Cert No: 130-211-378)
● AWS Certified Solutions Architect – Associate (In Progress)