Backend, data and queues

• Job

  Stop "out of database connections" errors in one service, pool budgeted and tested

  One service that times out waiting for a database connection, or hits the server limit, is diagnosed and corrected, then completes a load test at the concurrency you name.

  From £345 · untested offer price

• Project

  Stabilise the data layer of one service: slow queries, N+1, indexes and connections

  We agree a defined list of data-layer problems in one service, measure it, and return the whole list as accepted, tested changes with a closing before and after measurement.

  From £3,500 · untested offer price

• Job

  Find why a scheduled job stopped, fix it, and get an alert if it ever misses a run

  One cron job that silently stopped is diagnosed and fixed, overlapping runs are guarded, and a missed-run alert is wired up and shown to reach a named person.

  £195 · untested offer price

• Job

  Keep a Django site responsive during a long data import

  One agreed sample import is queued and reports a completed or failed result without a 502; ordinary pages stay responsive on a test copy.

  From £395 · untested offer price

• Job

  Review the indexes in one database and apply the agreed changes, measured

  The indexes of one PostgreSQL or MySQL database are reviewed against its real queries; up to five agreed changes are applied on staging and measured before and after.

  From £495 · untested offer price

• Job

  Restart a Laravel job queue that stopped sending business emails

  Find why a Laravel queue stopped processing one named email or notification job, repair it on staging, and add a failed-job alert.

  £195 · untested offer price

• Job

  Fix one endpoint that runs hundreds of queries, and prove the query count

  One endpoint stops issuing a query per row: its database query count drops to an agreed ceiling and a test fails if it climbs again, with identical response data.

  £245 · untested offer price

• Job

  Fix “undefined function mysql_connect” on an old PHP website

  Replace removed mysql_* database calls in one old custom PHP site with mysqli or PDO, then test its data-entry and login flows on a copy.

  From £395 · untested offer price

• Job

  Make one slow database query fast, with before and after plan evidence

  One slow PostgreSQL or MySQL query meets a time you set on a staging copy, with the before and after execution plans and an identical-rows check attached.

  From £295 · untested offer price

• Job

  Stop one background job doing its work twice, with an idempotency check and replay test

  One background job that sometimes repeats its side effect gets a database-enforced idempotency record with a claim state and a lease, and a test that replays it through failures.

  From £395 · untested offer price

• Ongoing service

  Keep your scheduled jobs and job queues watched, month after month

  Named cron jobs and queues get heartbeat checks and queue alarms; a missed run, backlog or dead-lettered message reaches a named person, and every alert is investigated.

  £195/month · untested offer price

• Job

  Fix one cached object that shows stale data after it changes, with the invalidation tested

  One cached object shows old data after it changes; its Redis write, delete and expiry order is corrected and tests prove the next read is fresh and the old value gone within a stated window.

  £245 · untested offer price

• Ongoing service

  Keep your database healthy: a slow-query and growth review every month

  Each month we read your slow-statement and table-growth exports, report what changed, and prepare each small fix as a script or pull request for you to apply.

  £195/month · untested offer price

• Job

  Find why two parts of your app deadlock, and make that workload run clean

  One workload that fails with a database deadlock or lock wait timeout is reproduced on staging, its lock order or transaction scope corrected, and a concurrent test shows it clean.

  From £645 · untested offer price

• Job

  Merge duplicate records in one table and add the constraint that stops new ones

  Duplicate rows in one PostgreSQL or MySQL table are merged on a copy, with removed rows archived, a reverse script that is run, a reconciliation report and a non-blocking uniqueness guard.

  From £695 · untested offer price

• Job

  Fix a Supabase table that returns nothing to signed-in users, safely

  On one Supabase table a signed-in test user sees and changes only their own rows, while a second user and a signed-out visitor see none of them, shown by a repeatable test.

  From £395 · untested offer price

• Project

  Make one service's background jobs and scheduled tasks reliable, and watched

  A defined list of job and schedule problems in one service: each job gets a written, tested repeat policy and each schedule a tested missed-run alert, returned as accepted, tested changes.

  From £2,450 · untested offer price

All software teams outcomes