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VDR.aiDatabase Development Services
Schema design, migrations that don't lose data, and queries that stay fast as the table grows.
Most performance problems that get blamed on the application are database problems: a missing index, an N+1 query, a schema that made sense at 10,000 rows and stopped making sense at 10 million. We work on the storage layer directly — modeling, indexing, migrating, and tuning — rather than papering over it with caching.
We work in Postgres most often, and also MySQL, SQL Server, MongoDB, Redis, ClickHouse, and the managed equivalents on AWS, GCP and Azure. If you are choosing between them, we will tell you which one fits the access pattern you actually have.
What we build
How an engagement runs
Audit
We profile the live workload — slow query logs, index usage, lock contention, growth curves — and tell you where the cost actually sits.
Plan
A written plan naming what changes, in what order, with the risk and rollback for each step. You approve before anything runs.
Implement
Changes ship incrementally behind verification, against a restored copy of production first.
Operate
Monitoring, alerting, and the runbooks your team needs to own it after we hand it back.
Open-Source Databases
We evaluate and deploy these in production. Browse all 493 guides, or talk to us about a specific tool.
acl
Acl is a mature C/C++ network library and server framework supporting coroutines, HTTP/HTTPS, Redis, MQTT, and database clients across Linux, Windows,…
active_record_doctor
Active Record Doctor is a Ruby gem that automatically detects database design issues in Rails applications—such as missing indexes, foreign key constr…
activerecord-sqlserver-adapter
activerecord-sqlserver-adapter is a Ruby gem that enables Rails applications to use Microsoft SQL Server as their database. It translates Rails' Activ…
Addax
Addax is an open-source ETL tool written in Java that moves data between 20+ SQL and NoSQL databases, Excel, and cloud storage. It evolved from Alibab…
aioway
AioWay is a Python-based optimizing compiler for deep learning that automatically selects and configures ML algorithms based on task and resource cons…
airframe
Airframe is a Scala framework providing dependency injection, serialization, testing, logging, and RPC capabilities for building web and backend appli…
alembic
Alembic is a database migration tool for Python applications using SQLAlchemy. It automates schema changes, supports version control-like workflows fo…
altimate-code
Altimate Code is an open-source TypeScript harness that gives AI agents (Claude, Codex, local LLMs) a deterministic data engineering toolkit with 100+…
Android-Debug-Database
Android Debug Database is a browser-based debugging tool for Android developers to inspect and edit SQLite databases, SharedPreferences, and Room data…
Questions clients ask us
Can you migrate us off a managed service, or onto one?
Do you work with our existing schema, or rebuild it?
How do you handle migrations without downtime?
Can you help us choose a vector database?
Work with a software development company
DEV.co is a software development company with senior engineers across web, data, cloud, and AI development services. Database Engineering work rarely arrives on its own — it comes attached to a product, a migration, or a platform, and we build all three.
Need help with database engineering?
Have a real project conversation with a senior engineer before you commit to an approach.