Sr. Engineer - Cassandra

Amex GBT is a place where colleagues find inspiration in travel as a force for good and through their work can make an impact on our industry. We re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued. We are seeking a talented and experienced Cassandra Engineer to join our Technology team. This is a specialized technical senior role focused on Datastax Enterprise (DSE)/Cassandra cluster administration, platform maintenance, and operational support. What You ll Do Design and build new multi-data centre DSE/Cassandra clusters to meet business requirements Plan and Execute installation, configuration, and deployment of DSE/Cassandra nodes in multi-data centre environments Evaluate and re-architect existing multi-data centre cluster setups Perform DSE Cluster & Apache Cassandra Cluster Administration tasks Configure and fine tune clusters for optimal performance (replication strategies, partitioning, consistency levels, compaction settings) Perform and support Datastax (DSE) / Apache Cassandra patch upgrades and major/minor version upgrades with minimal downtime Support the NoSQL DB platform during infrastructure activities (OS upgrades, hardware upgrades, compliance-related fixes) Perform routine maintenance tasks and automate operations using scripting languages (Python, Bash) and configuration management Monitor and maintain existing multi-data centre DSE/Cassandra clusters to ensure high availability and performance Develop scripts for automated monitoring, alerting, and maintenance activities Troubleshoot and resolve DSE/Cassandra cluster issues and performance problems Provide on-call support for critical DSE/Cassandra cluster issues What We re Looking For 5+ years of hands-on experience with NoSQL databases, specifically Cassandra/Datastax DSE Proven track record in database administration and operational support roles Expert-level understanding of Datastax Enterprise (DSE)/Cassandra architecture, data replication strategies, consistency levels, compaction strategies etc Proficiency in DSE Cassandra cluster administration, management, and configuration Experience with Datastax Enterprise (DSE)/Cassandra patch upgrades and major/minor version upgrades Advanced performance tuning and optimization capabilities Cassandra data-modeling expertise and CQL proficiency Experience with monitoring and logging tools Skilled in Linux/Unix environments and shell scripting Preferred Qualifications Experience with DSE Search (Solr) and DSE Analytics (Spark) workloads Exposure to Apache Solr and Apache Spark technologies Experience with cloud environments (AWS) and cloud-native services Exposure to AWS Database Services ( Aurora, DocumentDB, DynamoDB, Amazon Keyspaces etc) Proficiency in scripting languages (Python, Bash) Familiarity with automation tools such as Ansible Location Bangalore, India Work and life: Find your happy medium at Amex GBT. Flexible benefits are tailored to each country and start the day you do. These include health and welfare insurance plans, retirement programs, parental leave, adoption assistance, and wellbeing resources to support you and your immediate family . Travel perks: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals. Develop the skills you want when the time is right for you, with access to over 20,000 courses on our learning platform, leadership courses, and new job openings available to internal candidates first. We strive to champion Inclusion in every aspect of our business at Amex GBT. You can connect with colleagues through our global INclusion Groups, centered around common identities or initiatives, to discuss challenges, obstacles, achievements, and drive company awareness and action. And much more!