What does this skill do?

The Senior Backend Engineer skill helps an agent design and implement backend systems, from REST APIs and microservices to database architecture and security hardening.

It brings three primary tools: an API scaffolder that generates routes and OpenAPI specs, a database migration tool that detects changes and flags optimizations, and an API load tester that measures latency percentiles.

It applies a disciplined decision framework — surfacing read/write ratio, tenancy model, data sensitivity, and SLO before recommending — and includes latency and RPO/RTO targets.

  • Scaffolds APIs and OpenAPI specs across frameworks

  • Generates database migrations with rollback and optimization

  • Load-tests APIs for P50/P95/P99 latency

  • Surfaces SLO, tenancy, and data-sensitivity assumptions

How it works

1

Surface the assumptions

The agent surfaces read/write ratio and QPS, tenancy model, data sensitivity tier, and SLO before making recommendations.

2

Design the API

It defines resources via OpenAPI, scaffolds routes and middleware, and implements business logic with validation.

3

Optimize the database

It analyzes performance, generates index migrations with rollback, and tests changes via dry-run before applying.

4

Harden security

It reviews authentication, adds rate limiting, validates inputs, load-tests attack patterns, and applies security headers.

Best use cases for this skill

  • API design: Scaffold REST APIs with OpenAPI specs and validation.

  • Database optimization: Generate index migrations and reduce slow queries.

  • Load testing: Measure P50/P95/P99 latency and throughput.

  • Security hardening: Add rate limiting, validation, and security headers.

Frequently asked questions

What does the Senior Backend skill do?

It designs and implements backend systems — REST APIs, microservices, database architectures, authentication flows, and security hardening — with clear performance and SLO targets.

When should an agent use it?

Use it to design REST APIs, optimize database queries, implement authentication, build microservices, or review backend code.

What must be defined before recommendations?

The read/write ratio and one-year P99 QPS, the tenancy model, the data-sensitivity tier, and the SLO with a named error-budget consumer.

Does it support different stacks?

Yes. It offers profiles that calibrate recommendations for stacks such as node-express, fastapi-python, django-monolith, and go-or-rust microservices.

Use from source

Ask your Buda agent to install this community skill.

Copy this prompt into your own Buda agent. It includes the source repository and install command so the agent can complete the setup in natural language.

Prompt to send to your Buda agent
Please install the "Senior Backend Engineer Skill" skill into this Buda agent.

Source repository: https://github.com/alirezarezvani/claude-skills
Install command: npx skills add alirezarezvani/claude-skills --skill senior-backend -y -a universal

Please run the install command, verify the skill is available, and tell me any setup notes or follow-up steps from the source repository.
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Install workflow

  1. 1Copy the prompt
  2. 2Send it to your Buda agent
  3. 3Done