Total 44,274 skills, Backend Development has 3834 skills
Showing 12 of 3834 skills
Module organization patterns including ports and adapters (hexagonal), module communication, and data isolation. Use when structuring modular monoliths, defining module boundaries, setting up inter-module communication, or isolating database contexts. Includes MediatR patterns for internal events.
Place, manage, and cancel orders using REST API or SDK hooks. Covers market, limit, IOC, FOK, POST_ONLY order types and batch operations
Lead complex software implementation, architecture decisions, and reliable delivery across any modern technology stack. Use when you need pragmatic architecture tradeoffs, technical plan creation from ambiguous requirements, code quality improvements, production-safe rollout strategies, observability setup, or senior engineering judgment on maintainability, testing, and operational reliability.
Square integration. Manage Organizations, Users, Goals, Filters. Use when the user wants to interact with Square data.
Structure packages and manage dependencies using the pub ecosystem.
Bridge Dart with native C/C++ libraries using FFI.
Offload heavy computation to isolates to keep the main thread responsive.
Build backend API endpoints, services, and database changes. Use for backend-only work like new API routes, business logic, database schema changes, or microservice patterns. Activates the Architecture Council for significant API decisions.
Use this skill when writing, reviewing, auditing, or deploying Solidity smart contracts. Triggers on Solidity development, smart contract security auditing, DeFi protocol patterns, gas optimization, ERC token standards, reentrancy prevention, flash loan attack mitigation, Foundry/Hardhat testing, and blockchain deployment. Covers Solidity, OpenZeppelin, EVM internals, and common vulnerability patterns.
Use this skill when designing database schemas, optimizing queries, creating indexes, planning migrations, or choosing between database technologies. Triggers on schema design, normalization, indexing strategies, query optimization, EXPLAIN plans, migrations, partitioning, replication, connection pooling, and any task requiring database architecture or performance decisions.
Plan and execute incremental product isolation migrations to a facade plus contract layer in PostHog, following the Visual review architecture. Use when a product still exposes internals (models/logic/views) across boundaries and needs a safe, multi-PR migration toward contracts.py + facade/api.py + presentation separation.
Use when editing, reviewing, or auditing DRF viewsets and serializers in PostHog. Triggers on files in posthog/api/, products/*/backend/api/, products/*/backend/presentation/, or any file importing rest_framework serializers or viewsets. Covers OpenAPI spec quality, field typing, schema annotations, and DRF best practices that flow through the type pipeline to generated TypeScript types and MCP tools.