Expertise / Database Engineering
Databases Designed for the Next Ten Years
Schema design, performance tuning, replication and migrations across PostgreSQL, MySQL, MongoDB, Redis and modern vector stores.
- 01Schema design
- 02Query optimization
- 03High availability
- 04Zero-downtime migrations
- 05Vector and search
- 06Backup and recovery
Toolbox
Tools we run in production
Chosen for performance, reliability and developer experience, and swapped when something better arrives.
Expertise
What we build with this stack
The four areas where our engineers spend most of their time.
Relational Databases
PostgreSQL and MySQL done properly.
- Schema design
- Indexing strategy
- Partitioning
- Replication
- Connection pooling
NoSQL & Caching
The right store for the right data.
- MongoDB
- Redis
- DynamoDB
- Elasticsearch
- Cassandra
Data Migrations
Move data without downtime.
- Dual writes
- Backfills
- CDC pipelines
- Validation
- Rollback plans
Vector & AI Data
Storage for embeddings and retrieval.
- pgvector
- Pinecone
- Weaviate
- Hybrid search
- Chunking strategies
Case studies
Where this stack shipped
Selected work where this expertise reached production.
Solutions
What we deliver
Performance audits
Find and fix slow queries.
Multi-tenant schemas
Isolation for SaaS platforms.
Database migrations
Legacy to modern engines.
Analytics warehouses
Reporting without slowing production.
Vector search setup
Retrieval for AI products.
HA and DR design
Replication and recovery plans.
Results from recent engagements
Why teams pick Menna
What clients tell us mattered most.
- Deep PostgreSQL expertise
- Zero-downtime migration playbooks
- Performance measured, not guessed
- Security and encryption
- Backup and recovery tested
- Vector search experience
Database Engineering FAQs
PostgreSQL is our default for most workloads. We add specialized stores such as Redis, Elasticsearch or a vector database when the access pattern calls for it.
Yes. A performance audit usually finds missing indexes, N+1 queries and schema issues that can be fixed in days.
Yes, including managed services like RDS, Cloud SQL and Neon, with zero-downtime cutover strategies.
Start a conversation
Let’s solve a real problem together.
Whether you need software built, a network installed or a partner for a digital transformation program, your first conversation is with the people who will do the work.
We reply within one business day. Based in Addis Ababa, working with partners in Ethiopia and beyond.
- 2026
- Founded in Addis Ababa, Ethiopia
- 2
- Focus areas: software, networking & IT
- 4
- Core values: Service, Wisdom, Stewardship, Excellence
- 3
- Founding leadership team