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What you would do

• Design and build backend services in Go and TypeScript, on PostgreSQL, for systems that stay up.
• Take a feature from a problem statement through schema, API, rollout and the metrics that say whether it worked.
• Carry the on-call rotation for what you ship, alongside the rest of the team.
• Review other people's code as carefully as you would want yours reviewed.

What we are looking for

• Five or more years building production backends, including at least one system you operated after launch.
• Fluency with relational data modelling — indexes, transactions and query plans are tools you reach for, not things you read about.
• Comfort with the unglamorous parts: migrations, backfills, timeouts, retries, idempotency.
• Enough English to read and write a design document; Persian for the day to day.

How we work

Three days a week in the Tehran office, two wherever you like. The team that builds a system deploys it and answers for it — there is no handover to somebody who has never seen the code.

The engagement

Six months, part or full time, extendable. This is a defined piece of work with an owner and an end state, not an open-ended seat.

What you would do

• Take our deployment path from a shell script that works to a pipeline that is boring — staged builds, health checks, one-command rollback.
• Put real observability behind the systems we operate: metrics, structured logs, traces where they earn their keep.
• Prove the backups by restoring them on a schedule, not by checking that the job exited zero.
• Write the runbook the on-call rotation actually opens at three in the morning.

What we are looking for

• Deep Linux, and the patience to read the logs before changing anything.
• Experience running services on plain machines, not only on a managed platform.
• An opinion about what should page a human and what should wait until morning.