Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Eshetu Alem

Silver Spring,MD

Summary

  • Results-driven MongoDB-certified DBA with expertise in architecting and managing high-availability on-premises and cloud databases, including multi-region replica sets and MongoDB Atlas. Skilled in performance tuning, migrations, automation (Ansible, Chef, Terraform, Python/Bash), and security (LDAP/AD, RBAC, TLS/SSL, Vormetric), consistently improving reliability, query performance, and operational efficiency while leading teams and optimizing processes.

Overview

8
8
years of professional experience
1
1
Certification

Work History

Senior MongoDB DBA

Mastercard
03.2019 - Current
  • Engineered highly available MongoDB architectures on-premises and in the cloud, including multi-region replica sets and sharded clusters, achieving 99.99% uptime for critical production systems.
  • Led on-prem data center migrations and MongoDB version/storage engine upgrades with minimal downtime; executed on-prem → Atlas migrations using Atlas Live Migration.
  • Implemented sharding, replica set development, balancing, and indexing strategies with development teams, improving throughput and resilience across high-volume workloads.
  • Administered Ops Manager / MMS for automation, backups (Scality → S3/Glacier), and point-in-time recovery; integrated monitoring with internal alerting tools for proactive incident management.
  • Hardened deployments using LDAP/Active Directory, RBAC, keyfile auth, TLS/SSL, and Vormetric key management, ensuring secure, compliant database operations.
  • Automated deployments and configuration management with Ansible, Chef, and Terraform; developed Python/Bash tools to reduce manual DBA tasks by ~50%.
  • Troubleshot production incidents, resolved replication lag and failover issues, and optimized slow queries; created/optimized 100+ DB objects, yielding ~35% performance improvement.
  • Built staging and ETL environments for data profiling, cleansing, and verification; authored runbooks, capacity forecasts, and provided on-call DBA support.

Mongo DBA

ETHIOPIAN AIRLINES
Addis Ababa, Ethiopia
07.2017 - 03.2019
  • Administered MongoDB databases across production and development environments, including basic replica sets and sharded clusters.
  • Assisted in deployment, migration, and maintenance of MongoDB applications.
  • Performed monitoring and tuning using MongoDB tools (Mongostat, Mongotop, mtools).
  • Configured basic security (SCRAM-SHA, MongoDB-CR) and SSL keyfiles for MongoDB instances.
  • Created indexes (including text indexes) and managed database objects for optimal utilization.
  • Supported Linux and Windows environments for MongoDB installations and configurations.
  • Collaborated with operations and development teams on performance optimization and troubleshooting.
  • Familiar with AWS services (EC2, S3, IAM, CloudWatch) for database deployments and migrations.

Education

Bachelor's degree - Civil Engineering

Wachemo University
Hossana, Ethiopia

Skills

  • Databases: MongoDB, MongoDB Atlas, Ops Manager, RDBMS, Replication, Sharding, Backup & Recovery, Performance Tuning
  • Cloud & Infrastructure: AWS (EC2, S3, RDS, Lambda, CloudFormation), Azure, Public Cloud Platforms
  • Automation & Scripting: Ansible, Terraform, Python, Bash, CI/CD Pipelines, Cluster Setup Automation
  • Monitoring & Tools: Log Monitoring, Splunk, Mlog, Hatchet
  • Security & Compliance: TLS/SSL, Encryption, Vormetric Key Management (KMS), LDAP/AD, RBAC, Audit & Compliance

Certification

Certifications & Honors

MongoDB Certifications:

  • Certified MongoDB Atlas DBA
  • Certified Self-Managed MongoDB DBA
  • MongoDB Advanced Deployment and Operations
  • Associate MongoDB DBA
  • Completed 23+ MongoDB University courses

Data Analysis & BI Certifications:

  • IBM Data Science Professional Certificate
  • IBM Data Analyst Specialization
  • Advanced Microsoft Power BI
  • Data Analysis with SQL: Inform a Business Decision
  • SQL Joins
  • Manipulating Data with SQL
  • From Excel to Power BI
  • Excel Basics for Data Analysis
  • Getting Started with RStudio

Timeline

Senior MongoDB DBA

Mastercard
03.2019 - Current

Mongo DBA

ETHIOPIAN AIRLINES
07.2017 - 03.2019

Bachelor's degree - Civil Engineering

Wachemo University

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Eshetu Alem