PostgreSQL development, administration and consulting
PostgreSQL development, administration and consulting: schema design and SQL, PL/pgSQL functions, performance tuning, replication, failover and backups, upgrades to PostgreSQL 18, migrations from Oracle, SQL Server and MySQL, and managed PostgreSQL on Azure, AWS and Google Cloud, with dedicated PostgreSQL developers and DBAs for your team or a PostgreSQL project delivered end to end.
What we build with PostgreSQL
PostgreSQL schema design
Tables, constraints and indexes designed around how the application reads and writes, JSONB where the shape of the data varies, and declarative partitioning for tables that grow every month, with each change a reviewed migration in Flyway, Liquibase, Alembic, EF Core or Prisma.
PostgreSQL performance tuning
Slow queries found with pg_stat_statements, auto_explain and EXPLAIN ANALYZE, then fixed with the right B-tree, GIN or BRIN index, a rewrite or fresh statistics, and autovacuum, memory and connection settings tuned to the workload, with PgBouncer in front when connections run out.
PL/pgSQL functions and triggers
Functions, procedures and triggers in PL/pgSQL, scheduled jobs in pg_cron, and views and materialised views for reporting, covered by pgTAP tests that run in the pipeline against a real PostgreSQL in a container.
Managed PostgreSQL in the cloud
Azure Database for PostgreSQL, Amazon RDS and Aurora PostgreSQL, Google Cloud SQL and AlloyDB, or Supabase, sized to the workload and defined in Terraform, on private networking, with sign-in through Microsoft Entra ID or IAM and read replicas where reports need them.
Replication, failover and backups
Streaming replication with automatic failover through Patroni, or CloudNativePG on Kubernetes, point-in-time recovery with pgBackRest, Barman or WAL-G, and restores rehearsed on a schedule so the recovery time is known before it is needed.
Migrations to PostgreSQL
Oracle schemas and PL/SQL converted with ora2pg, MySQL moved with pgloader, and SQL Server T-SQL rewritten as PL/pgSQL, each finished by hand, with data moved in rehearsed runs and reconciled table by table before the cut-over.
PostgreSQL version upgrades
Clusters on PostgreSQL 14, which leaves community support in November 2026, and older releases moved to PostgreSQL 18 with pg_upgrade, which now keeps planner statistics across the upgrade, or with logical replication when downtime must stay in minutes, and the application tested against the new version first.
PostGIS, pgvector and other extensions
Maps, routing and delivery zones with PostGIS, embeddings and similarity search with pgvector, sensor and metrics data with TimescaleDB, and tables spread across nodes with Citus, so one PostgreSQL estate covers work that would otherwise need extra databases.
PostgreSQL security and auditing
Least-privilege roles, row-level security for multi-tenant data, SCRAM or Entra and IAM sign-in in place of md5 passwords, which PostgreSQL 18 deprecates, TLS on every connection, and pgAudit logs kept where administrators cannot change them.
Hire PostgreSQL developers and DBAs
Dedicated PostgreSQL developers and DBAs
PostgreSQL developers and DBAs who join your team full time, work in your repositories, tracker and meetings, and report to your lead. You interview them; we carry the Ukrainian contract, payroll, invoicing and leave.
PostgreSQL project delivery
A team that takes the PostgreSQL project from scope to release: estimate, build, tests and deployment, with a technical lead on our side who owns the plan and the quality.
PostgreSQL support and take-overs
An existing PostgreSQL system taken over from another team or kept running: a read-only review and a written list of risks first, then fixes and new features in order of impact.
The dedicated team page explains how specialists join your team, and the outsourcing page covers project delivery, take-overs and how we charge.
Who works on your PostgreSQL project
PostgreSQL developers
Schemas, SQL and PL/pgSQL
PostgreSQL DBAs
Performance, replication, backups and upgrades
Backend engineers
.NET, Java, Python and Node.js data access
DevOps engineers
Managed instances and Kubernetes operators in Terraform
Data engineers
Reporting replicas and change data capture
How we work on PostgreSQL
Every schema change is a migration in the repository, reviewed like code and applied by the pipeline, and tests run against a real PostgreSQL of the same major version in a container rather than a mock. Server settings live in Terraform, Ansible or the Kubernetes operator’s manifests, so a cluster can be rebuilt from what is written down.
On a database another team runs, we start with read-only access to the versions, extensions, replication, backups, the slowest queries and the list of who can connect, and write up the risks in order of impact. Changes to production are rehearsed on a copy with masked data, and nothing is run by hand that a migration can do.
Other databases we work on
SQL Server development
SQL Server and Azure SQL development and administration: T-SQL, performance tuning, SSIS, Always On, upgrades to SQL Server 2025 and Azure migrations, with dedicated SQL Server developers and DBAs or project delivery.
Oracle development
Oracle Database and PL/SQL development and administration: SQL tuning, APEX, RAC and Data Guard, 26ai upgrades, Exadata and migrations to and from Oracle, with dedicated Oracle developers and DBAs or project delivery.
MongoDB development
MongoDB development and administration: schema design, query and index tuning, Atlas set-up, sharding and replication, search and vector search, and migrations, with dedicated MongoDB developers or project delivery.
Questions about PostgreSQL development
Which industries do your PostgreSQL developers work in?
Fintech and banking, for ledgers, payments and transaction history; AI and data products, for analytical stores and vector search with pgvector; e-commerce and retail, for catalogues, orders and stock; enterprise SaaS, for multi-tenant products protected by row-level security; healthcare, for patient records with auditing and encryption; and logistics, for tracking data and delivery zones in PostGIS.
Managed PostgreSQL or self-hosted?
A managed service such as Azure Database for PostgreSQL, Amazon RDS and Aurora, or Cloud SQL and AlloyDB takes patching, backups and failover off your team. Self-hosted PostgreSQL, on virtual machines or on Kubernetes with CloudNativePG, gives you any extension, any version and full control of the server. We work on both, and the schema, migrations and tests are the same on either.
Our PostgreSQL database is slow. Where do you start?
With pg_stat_statements, which ranks queries by the total time they take, and the execution plans of the worst of them. The fix is most often a missing or unused index, a query rewrite, table bloat that autovacuum has not kept up with, or too many open connections, and every change is timed before and after on a copy of production.
How quickly can PostgreSQL developers and DBAs start?
When the right PostgreSQL developer or DBA is available, the start is gated only by your interview and the NDA and IP assignment. Otherwise we run a search, which typically produces candidate profiles within two to three weeks, and nobody starts until you have said yes.
How do we hire PostgreSQL developers and DBAs through BigTree108?
Tell us the work, the seniority and the hours you need. We propose one or two people with their profiles, you interview them the way you would interview your own hire, and you sign one agreement with BIG TREE 108 LLC and receive one invoice a month.
Who owns the work they produce?
You do. Every specialist has a signed contract with BigTree108 that assigns all work product to the company, and our agreement with you assigns it onward. Code, designs and documents are delivered into your own repositories and tools, not kept where only we can change them.
Building on PostgreSQL?
Tell us the version, where it runs and what has to change. You get an answer within one business day: a plan, candidate profiles, or a scope for a review of your database.