API Testing

Tests APIs via Postman or Insomnia. Creates basic request collections. Uses environment variables. Checks status codes and response body.

Uses Burp Suite and Postman to intercept and replay API requests. Tests for basic API vulnerabilities: broken authentication, excessive data exposure, injection in parameters. Can modify request headers and payloads to probe for security weaknesses in REST endpoints.

Uses performance testing tools: k6 for load tests, autocannon for HTTP benchmarks, Postman for functional validation. Understands results: latency percentiles, throughput.

Writes basic API tests using Postman collections and REST Assured. Validates response status codes, JSON schema, and field values. Understands HTTP methods, headers, and authentication basics. Can import Swagger/OpenAPI specs to generate initial test requests.

Sends API requests using Postman and verifies responses against documentation. Checks status codes, response body structure, and error messages. Understands basic REST principles (GET, POST, PUT, DELETE) and can read Swagger/OpenAPI specs to build manual test cases.

Uses Postman and Burp Suite for API security testing: intercepts requests, modifies headers and body. Understands Swagger/OpenAPI for determining attack surface.

Automates API tests via testing tools. Creates test fixtures for APIs. Uses Postman/Newman for automated collections. Tests edge cases and error handling. Generates reports.

Performs targeted API penetration testing with Burp Suite extensions, custom fuzzing scripts, and OWASP ZAP. Exploits BOLA, broken function-level authorization, and SSRF via API parameters. Chains API vulnerabilities to demonstrate real-world attack impact. Writes Burp macros for multi-step authentication bypass scenarios.

Configures performance tools: k6 with custom metrics, Gatling for complex scenarios, distributed load generation. Creates reusable test libraries. Integrates with CI/CD.

Builds comprehensive API test suites with REST Assured, Postman/Newman, or Karate. Implements data-driven testing, response schema validation, and contract testing against OpenAPI specs. Integrates API tests into CI/CD pipelines. Handles complex authentication flows (OAuth2, JWT refresh) and tests pagination, filtering, and error handling scenarios.

Designs structured API test plans covering positive, negative, and boundary scenarios. Tests complex workflows with chained requests in Postman using variables and pre-request scripts. Validates API behavior against business rules, data contracts, and error handling specs. Compares actual vs documented API behavior and reports inconsistencies with detailed evidence.

Effectively uses security testing tools: Burp Suite Professional (scanner, intruder, repeater), OWASP ZAP for automated scanning, nuclei for template-based testing.

Designs API testing strategy. Implements contract testing (Pact). Creates performance tests for APIs. Automates security testing (OWASP ZAP). Configures chaos testing for APIs.

Leads complex API penetration testing engagements targeting GraphQL, gRPC, and WebSocket APIs alongside REST. Develops custom exploitation tools and fuzzing harnesses for API-specific vulnerabilities. Identifies business logic flaws through deep API flow analysis. Creates reusable Burp Suite automation pipelines and trains junior pentesters on advanced API attack techniques.

Designs tooling strategy: k6 vs Gatling vs Locust selection by scenario, custom extensions for protocol support, distributed test orchestration.

Designs API testing architecture for large-scale distributed systems. Implements contract testing with Pact, performance testing with Gatling/k6, and chaos testing for API resilience. Builds custom API testing frameworks with dynamic schema generation from OpenAPI/AsyncAPI specs. Establishes API testing standards, reviews team test coverage, and drives shift-left API quality practices.

Defines API testing methodologies and quality gates for the team. Designs end-to-end API test strategies covering functional, integration, and non-functional aspects. Reviews API contracts and specifications for testability and completeness. Mentors QA engineers on advanced Postman techniques, API mocking strategies, and effective defect reporting for API issues across microservices.

Integrates API testing tools into security pipeline: ZAP in CI/CD, custom Burp extensions, nuclei templates for company-specific vulnerabilities. Automates regression security testing.

Defines API testing standards for the organization. Implements unified testing framework. Automates API quality gates.

Defines API penetration testing methodology and toolchain standards for the security team. Evaluates and integrates commercial and open-source API security tools (Burp Suite Enterprise, Nuclei, custom scanners). Coordinates API security assessments across product lines, prioritizes findings by business risk, and drives remediation with engineering leads. Builds team competency in emerging API attack vectors.

Defines performance tooling standards: tool selection criteria, team training, shared libraries. Implements a performance testing CoE (Center of Excellence).

Defines API testing strategy and tooling standards across the organization. Evaluates and adopts API testing platforms (Postman, REST Assured, Karate, Pact). Drives API-first testing culture with contract-driven development and automated quality gates in CI/CD. Coordinates cross-team API integration testing, establishes SLAs for API reliability, and mentors senior engineers on testing architecture decisions.

Defines API Testing Tools strategy at the team/product level. Establishes standards for API test automation. Conducts reviews and selects tooling for the team.

Defines tooling strategy: selection and standardization of tools (Burp vs ZAP), licensing, training. Implements custom rule sets for organization-specific threats.

Shapes testing strategy at company level. Evaluates testing ROI. Implements API quality metrics.

Shapes the organization's API security testing vision and long-term strategy. Pioneers adoption of AI-augmented API fuzzing, runtime API threat detection, and zero-trust API architectures. Publishes research on novel API attack techniques and contributes to industry standards (OWASP API Security). Advises executive leadership on API risk posture across the product portfolio and drives strategic security investments.

Designs performance testing tooling platform: unified test framework, custom tool development, vendor evaluation strategy. Defines tool governance.

Sets the strategic direction for API quality assurance across the enterprise. Designs organization-wide API testing platforms supporting hundreds of microservices with automated contract validation, performance benchmarking, and regression detection. Drives industry-level initiatives in API observability-driven testing and AI-assisted test generation. Influences API specification standards and represents the company in API quality communities and conferences.

Defines organizational API strategy. Designs platform API. Establishes enterprise API governance and standards.

Designs API security tooling platform: integrated testing pipeline, custom scanner development, vulnerability correlation across tools. Defines tool evaluation and adoption strategy.