---
title: "ritesh gujaran - Senior Cyber Security Engineer ll in Bengaluru | Tal"
description: "Meet ritesh gujaran, Senior Cyber Security Engineer II | Infrastructure & Database Platform Engineering | High-Availability Systems | Kubernetes, AWS | American Express based in Bengaluru. AI stack includes claude code, claude, and codex."
image: "https://tal.club/meet/ritesh-gujaran/share-image"
---

# ritesh gujaran on Tal

## Headline

Senior Cyber Security Engineer II \| Infrastructure & Database Platform Engineering \| High\-Availability Systems \| Kubernetes, AWS \| American Express

## About

Senior Infrastructure & Data Platform Engineer with 13\+ years of experience designing, operating, and scaling mission\-critical systems in large enterprise environments\. Currently working as Senior Cyber Security Engineer II at American Express, where I function as a staff\-level infrastructure and database platform engineer, owning high\-availability, disaster recovery, and performance\-critical platforms supporting business\-critical workloads\. Deep expertise in high\-availability architectures, zero\-downtime operations, replication, backup/restore, and resilience engineering, with hands\-on experience across Linux, Kubernetes, AWS, automation, and large\-scale database platforms\. Known for driving platform reliability, operational excellence, and automation\-first practices, reducing operational risk and improving system stability at scale\. Regularly influence architecture decisions, lead production incident response, and mentor engineers across teams\. Interested in Director – Database Platforms / DBRE roles, as well as Staff and Senior Staff positions in Infrastructure, Systems, and Data Platform Engineering\. Focused on building scalable, resilient platforms, improving reliability at large scale, and solving complex distributed systems problems\.

## Location

Bengaluru

## AI stack

claude code

claude

codex

gemini

github copilot

ChatGPT

## Work experience

Senior Cyber Security Engineer ll at American Express, May 2025 \- Present · 1 yr 7 mos, \(Previously: Senior Data Engineer I, Data Engineer I, Data Engineer II\) 2020 – Present \| Bengaluru, India Staff\-Level Responsibilities & Achievements Own the reliability, performance, and security posture of enterprise\-grade data and infrastructure platforms supporting 200\+ production applications in a 24×7 financial environment\. Architected and implemented HA/DR frameworks using replication, clustering, automated failover, and observability best practices—improving platform uptime from 99\.5% → 99\.95%\. Led the end\-to\-end modernization of database and compute platforms, introducing automation\-first operations using Ansible, Python, Kubernetes, AWS, and CI/CD pipelines—reducing manual ops by 70%\. Delivered zero\-downtime migrations, upgrades, and patching, minimizing customer impact across mission\-critical systems and ensuring regulatory & compliance alignment\. Improved reliability KPIs, reducing MTTR during production incidents by 40% through automation, better diagnostics, proactive monitoring, and hardened recovery processes\. Spearheaded cross\-team engineering initiatives, collaborating with application, SRE, infra, and security teams to set platform standards and design reference architectures adopted across the organization\. Mentored engineers across data platform, infra, and SRE teams, conducting design reviews, architecture deep\-dives, and guiding best practices for reliability engineering\. Served as technical lead during high\-severity incidents \(SEV\-1/SEV\-2\), driving recovery strategy, identifying systemic failures, and implementing long\-term corrective actions that reduced recurrence by 60%\.

Senior Data Engineer II at American Express, Apr 2023 \- May 2025 · 2 yrs 2 mos, Benagulru, Working as a senior database/infrastructure engineer in ops team for Amex infosec apps\. Leading the offshore DBA/Application Support team\. Managing L2 & L3 issues for SQL server, Postgres, Green plum databases over 100 TB data\. Supporting applications on docker and Kubernetes environments also managing platform support for k8s\. Managing Linux patching and configuration management, and automation through ansible and powershell\. Managing infra of 2000 servers using redhat satellite, idrac, ansible tower, Vcenter, Rancher for k8\.

Data Engineer I at American Express, Mar 2022 \- Mar 2023 · 1 yr 1 mo, Bengaluru, Karnataka, India, Working as a database/infrastructure engineer in ops team for Amex infosec apps\. Handling L2 & L3 issues for SQL server, Postgres, Green plum databases over 100 TB data\. Supporting applications on docker and Kubernetes environments also managing platform support for k8s\.

SQLSERVER / SYBASE ASE DBA at FirstRand Services Private Limited, Apr 2017 \- Jan 2020 · 2 yrs 10 mos, Mumbai, Maharashtra, India, Working as MS SQL/SYBASE DBA, handling large environment including the 100\+ SQL server Production instances with approx 7 TB of large database and handling sybase instances with 2\.6 TB of large database \.

SQL Server Database Administrator at TechnoGen IT Services India Pvt\. Ltd\., Jul 2016 \- Mar 2017 · 9 mos, Mumbai, • Installation and configuration of SQL Server Instances\. • Applying Services Packs, Hotfixes, Patches whenever required\. • Implementing and Maintaining High Availability Solutions like Log Shipping, Mirroring, Replication and AlwaysOn\. • Implementing and Maintaining Clustering\. • Resolving high CPU and memory issues with SQL SERVER\. • Resolving Performance Issues with SQL Server\. • Resolving Deadlock Issues with queries running on SQL Server\. • Creating and maintaining Backup scheme Full, Differential and Transactional Log Backups\. • Restoring Backups withing the RPO and RTO mentioned\. • Creating Maintenance plans to make sure the SQL Server is up and running\. • Index Maintenance using Index Rebuild, Index reorganize and Update Statistics\. • SQL Server production support \(24 x 7 \)and Development environment • Health Monitoring of SQL Server Instances using DMV's , DMF's and DBCC commands\. • Checking for DB corruption and resolving corruption using DBCC commands\. • Performance tuning of queries using Execution Plan Analysis, Profiler and Database Engine Tuning Advisor\. • Managing SQL\-Server Security • Creating & Scheduling Jobs\. • Creating View, Indexes, Triggers and Constraints to handle complex business rules\.

Software Specialist at eClinicalWorks, Jul 2012 \- Apr 2016 · 3 yrs 10 mos, • Administration and management of the entire development, QA and production environment\. • Installed and configured MySQL on Linux and Windows environments\. • Installed and configured SQL SERVER 2008 R2,2012,2014,2016 • Managing/Troubleshooting SQL SERVER and MySQL databases and recovering the data from backups in disasters\. • Performed Transactional Replication setup and on SQL SERVER 2014\. • Implemented DR solutions like Log Shipping, Mirroring and Always ON\. • Performed MySQL Replication setup and administration on Master\-Slave\. • SQL SERVER and MySQL Database Maintenance and Optimization\. • Monitoring daily backups and backup & recovery, policy & procedures, performance/Tuning\. • Report generation through SQL queries\.

## Education

BSC IT, Information Technology, Vinayaka Mission's Research Foundation \- University

MCTS certified in SQLSERVER 2008 Implementation and maintenance, Data Modeling/Warehousing and Database Administration, Microsoft

[View the original profile](https://tal.club/meet/ritesh-gujaran)

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