Join us at the forefront of our database initiatives as a Lead Cassandra/Redis Administrator.
You'll play a pivotal role in supporting and automating high-load SQL and NoSQL databases like MongoDB, DocumentDB, DynamoDB, and Redis. You'll collaborate with multinational teams, contribute to innovative projects, and have the opportunity for continuous learning and growth.

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

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Responsibilities

As a Senior Cassandra/Redis DB Administrator, you will be responsible for
DB cluster planning, including data sizing estimation and identifying hardware requirements based on data size and transaction volume
Creating, installing, and configuring DB clusters
Utilizing monitoring tools to ensure cluster availability and performance
Exporting data into different data formats
Implementing primary and secondary indexes correctly for efficient data queries
Conducting backup and restoration procedures to ensure system security in the event of failure
Tuning the performance of Java Virtual Machine (JVM), caches, and compaction
Conducting stress tests on clusters and interpreting performance results

Requirements

For Cassandra:
In-depth knowledge of architecting and creating Cassandra/NoSQL database systems
Proficiency in Cassandra Data Modeling, NoSQL Architecture, Keyspace, Table, Index creation, User administration, and access control
Strong understanding of complex Cassandra internals, including the gossip protocol, hinted handoffs, read repairs, Merkle trees, tombstones, and garbage purging
Experience in administration, maintenance, and support of clusters using tools like Opscenter, Devcenter, Linux, and Spark
Ability to write and optimize CQL Queries for Cassandra integration
Basic experience with CI/CD pipelines configuration
For Redis:
Hands-on experience in creating, installing, and configuring a Redis cluster, managing Redis processes, and related tasks
Proficiency in Redis Data model and Commands, including different data types, publishing/subscribing, transactions, key expiration, and sorting
Strong understanding of Redis Data management, including replication, snapshots, persistence options, AOF, and master-slave replication
Knowledge of Redis memory and CPU consumption, tuning techniques, and performance optimization
Expertise in Redis scalability, both vertical and horizontal
Experience with backup/restore procedures and routine Redis administration tasks
Hands-on experience with AWS cloud and basic services, including Elastic Compute, S3, and IAM

Nice to have

Experience with DSE (DataStax Enterprise)
Experience with AWS services, including Elastic Compute, S3, and IAM. Hands-on experience with Cassandra database hosted on AWS cloud is a plus
Good knowledge of Linux and Java configuration
Integration experience with Solar and Spark
Familiarity with automation and CI/CD tools like Jenkins, Gitlab CI, and TeamCity
Knowledge of infrastructure as code (IaC) tools such as Terraform and AWS CloudFormation
Proficiency in Python scripting
Any experience with Astra or AWS Keyspaces

We Offer

Health Insurance
Life Insurance (SVO)
Occupational Risk Insurance (ART)
Paid Time Off – Vacations. 14 calendar days a year, the number of days will increase by seniority based on local law rules
Sick leave
Exceptional Leave. Take paid time off for your major life changes (childbirth, marriage, etc.)
Compensation of costs for internet, electricity, and personal laptop usage (if applicable)
Stable full-time workload
Thousands of projects for top brands
Stable income
Referral Program
Certification opportunities
Unlimited access to LinkedIn learning solutions
Language courses
Relocation Assistance Package