Job Description

We are looking for a hands-on MongoDB Database Engineer to manage, optimise, and automate production-grade MongoDB clusters in enterprise environments.
This role demands deep MongoDB internals knowledge, not surface-level CRUD familiarity. You are expected to own cluster health, performance, and automation end to end.
Key Responsibilities

• Administer and support MongoDB replica sets and sharded clusters
• Design and maintain high availability and disaster recovery strategies
• Perform backups, restores, upgrades, and patching with zero or minimal downtime
• Monitor cluster health, replication lag, disk usage, and query performance
• Diagnose and resolve slow queries, locking issues, index inefficiencies, and capacity bottlenecks
• Implement security best practices:

• Authentication & authorisation (RBAC)
• TLS / encryption at rest
• Auditing and access controls
• Automate MongoDB operations using Ansible, scripts, and CI/CD pipelines
• Support MongoDB deployments on AWS / Azure / GCP
• Work closely with application and DevOps teams on schema design and performance optimisation
• Participate in on-call rotations and handle production incidents
• Maintain operational documentation and runbooks

Mandatory Technical Skills

• 5+ years of experience managing MongoDB in production
• Strong hands-on expertise with:

• MongoDB Replica Sets
• MongoDB Sharding
• Indexing strategies & query optimisation
• 2-3 years of hands-on PostgreSQL experience, including:

• Replication and high availability
• Backup & restore strategies
• Performance tuning
• Solid understanding of:

• WiredTiger storage engine
• Backup & recovery strategies (mongodump/mongorestore, snapshots)
• Capacity planning and scaling
• Strong Linux/Unix administration skills
• Scripting skills:

• Bash
• Python (preferred)
• Automation experience using:

• Ansible
• Git
• Experience with cloud-based MongoDB deployments (self-managed or Atlas)

Desirable Skills (Strong Advantage)

• MongoDB Atlas administration
• Terraform / Infrastructure as Code
• Jenkins / GitLab CI
• Kubernetes (MongoDB on K8s)
• Exposure to banking, fintech, or regulated environments

Education & Certifications

• Bachelor's degree in Computer Science or equivalent - Preferred
• MongoDB Certified DBA / Developer - Nice to have

Behavioural Expectations (Non-Negotiable)

• Strong ownership mindset -- production issues are your responsibility
• Ability to work under pressure during incidents
• Clear, professional communication with technical and non-technical stakeholders
• Ability to manage multiple production environments simultaneously

Skills Required