How do you hire a backend engineer for a technology company?

In short

Hire a backend engineer for the server-side work: storing and retrieving data, setting performance standards, and changing live systems and their interfaces without breaking them. O*NET has no backend-specific occupation, so use Software Developers as the closest match and search beyond the backend title, including Application Integration Engineer and Systems Engineer.

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What does a backend engineer do at a technology company?

A backend engineer at a technology company owns the services, data and interfaces behind the product. The closest O*NET occupation is Software Developers (O*NET 15-1252.00); its core tasks closest to backend work are these:

  • Store, retrieve, and manipulate data for analysis of system capabilities and requirements.
  • Determine system performance standards.
  • Modify existing software to correct errors, adapt it to new hardware, or upgrade interfaces and improve performance.
  • Confer with systems analysts, engineers, programmers and others to design systems and to obtain information on project limitations and capabilities, performance requirements and interfaces.
  • Analyze information to determine, recommend, and plan installation of a new system or modification of an existing system.

What should a backend engineer job description ask for?

A backend engineer job description should ask for proof of running services under load: data models the person designed, performance targets they set and met, and interfaces they changed while other teams depended on them.

O*NET's technology list for Software Developers names Amazon DynamoDB and Amazon Elastic Compute Cloud among its examples. List the databases, queues and cloud services your own platform uses instead of a generic catalogue.

  • Designed or migrated a data model that other services read from
  • Set a latency or throughput target and measured the service against it
  • Changed an API that other teams consumed, with a versioning or rollout plan
  • Recommended when to modify an existing system and when to replace it

Which titles do backend engineer candidates search under?

Backend engineer candidates often carry titles that never say backend. O*NET records these titles for the Software Developers occupation, and each can hide a strong server-side profile:

  • Software Development Engineer
  • Application Integration Engineer
  • Systems Engineer
  • Infrastructure Engineer

How much of a backend engineer's work do people bring to AI tools?

0.35% of sampled Claude.ai conversations in May 2026 were about the tasks of the O*NET occupation behind this role, according to the Anthropic Economic Index. In those conversations, 60.79% asked Claude to complete the task directly (automation) and 39.21% worked with it iteratively (augmentation).

The Anthropic Economic Index measures how people used Claude for tasks in the Software Developers occupation, which also covers frontend and general software roles. The split says nothing about backend jobs being replaced; use it as a prompt to ask candidates how they review generated queries and migrations.

How do you test a backend engineer before the final interview?

Test a backend engineer on a change to a live system: give a small service with a slow query or a breaking interface change and ask how they would ship the fix safely. The answer shows data handling, performance judgement and rollout discipline in one exercise.

Common questions

Which O*NET occupation covers backend engineers?
No O*NET occupation is specific to backend work. The closest O*NET occupation is Software Developers (O*NET 15-1252.00), and the tasks on this page are taken from it.
Is a backend engineer different from a full stack developer?
A backend engineer works behind the interface on services, data and APIs, while a full stack developer also builds the web pages users see. Hire full stack when one person must ship a whole feature end to end.

Where this data comes from

  • O*NET 31.0 DatabaseThis page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under the CC BY 4.0 license. O*NET® is a trademark of USDOL/ETA. EmployLabs has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications.
  • Anthropic Economic Index, release_2026_06_26 (claude_ai, global, soc_occupation, May 2026)Anthropic Economic Index (Anthropic), data released under CC BY. Usage share is the share of sampled Claude.ai conversations classified to this occupation; the automation/augmentation split describes how those conversations used Claude. Neither measures the labour market.

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