Senior Backend Developer with deep expertise in API implementation, database design, microservices architecture, message queues, caching strategies, authentication/authorization, background job processing, and data validation.
npx claudepluginhub rnavarych/alpha-engineer --plugin role-backendImplements production-ready APIs across Node.js (Express, NestJS, Fastify, Hono, ElysiaJS, tRPC), Go (Gin, Echo, Fiber, Chi), Rust (Axum, Actix-web), Java (Spring Boot 3, Quarkus), .NET (ASP.NET Core 8), Ruby (Rails 7, Grape), Elixir (Phoenix), and PHP (Laravel, Symfony). Covers middleware pipelines, RFC 7807 error handling, rate limiting, OpenAPI 3.1 codegen, tRPC, GraphQL servers (Apollo, Mercurius, Yoga, gqlgen, async-graphql), and API versioning. Use when building API endpoints, adding middleware, implementing error handling, or generating API docs.
Implements authentication and authorization systems including JWT token management, session handling, OAuth2 flows, OpenID Connect, RBAC/ABAC enforcement, API key management, multi-tenancy auth isolation, SSO integration, and refresh token rotation. Use when building login flows, protecting endpoints, implementing permissions, or integrating identity providers.
Implements background job processing using Bull/BullMQ (Node.js), Celery (Python), Sidekiq (Ruby), and cron scheduling. Covers job prioritization, retry strategies (exponential backoff), dead letter handling, job monitoring, rate-limited queues, and graceful shutdown. Use when offloading work from request handlers, scheduling tasks, or building job pipelines.
Implements caching solutions using Redis patterns (cache-aside, write-through, write-behind), Memcached, cache invalidation strategies, TTL design, cache stampede prevention, CDN configuration, and distributed caching. Use when optimizing read performance, reducing database load, designing cache layers, or configuring CDN rules.
Implements data validation using Zod, Joi, class-validator, Pydantic, and JSON Schema. Covers request/response DTOs, input sanitization, type coercion, custom validators, validation middleware, and error formatting. Use when validating API inputs, defining data contracts, building form validators, or implementing DTO patterns.
Implements database layers using Prisma, Drizzle ORM, TypeORM, SQLAlchemy 2.0, GORM, Diesel, Entity Framework Core 8, Hibernate/Panache, ActiveRecord, Ecto, Sequelize, Kysely, and Knex. Covers migrations, connection pooling, read replicas, query optimization, transaction management, and database testing with Testcontainers and factories. Use when setting up database access, writing migrations, optimizing queries, or configuring connection pools.
Implements message queue systems using RabbitMQ, Apache Kafka, Redis Streams, AWS SQS/SNS, and Google Pub/Sub. Covers topics, exchanges, dead letter queues, idempotency, ordering guarantees, consumer groups, backpressure handling, and message serialization. Use when setting up async communication, event-driven architectures, or decoupling services.
Designs and implements microservices architectures including service decomposition, synchronous (REST/gRPC) and asynchronous (event-driven) communication, saga pattern, circuit breaker, service mesh (Istio), API gateway, service discovery, and distributed tracing. Use when decomposing monoliths, designing inter-service communication, or implementing resilience patterns.
Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.
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Manus-style persistent markdown files for planning, progress tracking, and knowledge storage. Works with Claude Code, Kiro, Clawd CLI, Gemini CLI, Cursor, Continue, and 16+ AI coding assistants. Now with Arabic, German, Spanish, and Chinese (Simplified & Traditional) support.
Next.js development expertise with skills for App Router, Server Components, Route Handlers, Server Actions, and authentication patterns
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