Senior Database Administrator (MongoDB)

We are seeking a Senior Database Administrator to lead the design, implementation and optimization of robust, scalable MongoDB environments.

This role requires deep technical expertise, leadership in complex database operations and a collaborative approach to working with cross-functional teams to ensure high availability and performance.

Responsibilities

• Architect, implement and manage large-scale MongoDB deployments including replica sets and sharded clusters

• Drive performance tuning, query optimization, indexing strategies and workload analysis

• Lead backup/restore strategy design, disaster recovery planning, point-in-time recovery and high availability configurations

• Support major upgrade activities, schema design improvements, version migrations and cloud migrations

• Troubleshoot complex issues related to locking, replication lag, sharding balancer and storage performance

• Implement monitoring, alerting and automation to improve operational efficiency

• Provide mentoring and support to L1/L2 DBAs and contribute to best practices and documentation

• Collaborate with development and DevOps teams on data modeling, release management and integration

Requirements

• 6+ years of hands-on experience as a MongoDB DBA managing large and critical production environments

• Deep understanding of MongoDB internals such as replication internals, sharding architecture, chunk migration, balancer tuning and WiredTiger storage engine

• Expertise in performance tuning, analyzing execution plans and optimizing queries and indexes

• Hands-on experience with replica set and sharded cluster problem diagnosis and resolution

• Solid knowledge of Linux, scripting (Shell or Python) and automation frameworks

• Experience with monitoring and observability tools for MongoDB

• Basic knowledge of at least one additional RDBMS such as Oracle, MS SQL, PostgreSQL or MySQL

Nice to have

• Strong experience with GCP, AWS or Azure cloud database services

• Hands-on experience with MongoDB Atlas, multi-cloud clusters, encryption-at-rest and security controls

• Exposure to Kafka, microservices and high-volume data streaming workloads

• Experience building internal tooling or automation for database deployment and monitoring

• Knowledge of Infrastructure-as-Code such as Terraform or Ansible

We offer/Benefits

We gather like-minded people:

• Engineering community of industry professionals

• Friendly team and enjoyable working environment

• Flexible schedule and opportunity to work remotely within Poland

• Chance to work abroad for up to 60 days annually

• Business-driven relocation opportunities

We provide growth opportunities:

• Outstanding career roadmap

• Leadership development, career advising, soft skills, and well-being programs

• Certification (GCP, Azure, AWS)

• Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru

• English classes

We cover it all:

• Stable income (Employment Contract or B2B)

• Participation in the Employee Stock Purchase Plan

• Benefits package (health insurance, multisport, shopping vouchers)

• Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more

• Referral bonuses

• Corporate, social and well-being events

Please, note:

• The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview.

• We will reach out to selected candidates exclusively.

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.