🎁 Before you apply, rehearse this interview. Create your free WorkMundi account and get an Interview Training on HelpsYouSpeak — no cost, no card. I want my training →
We are looking for a Sr Software Testing Engineer -Freelancer /Part time with solid expertise in White Box and Black Box Testing, specifically for AI/Generative AI-driven applications. The candidate will be responsible for ensuring quality, reliability, and performance of AI systems including chatbots, automation platforms, and intelligent workflows. Key Skills (Must Have) Solid experience in Software Testing (Manual Automation) - White Box Testing (unit testing, code-level validation) - Black Box Testing (functional, system, regression testing) - Experience in testing AI Chatbots (Text / Voice / Video) - Knowledge of Prompt Testing / AI Response Validation - Exposure to RAG pipelines and vector databases - Performance testing tools (JMeter, LoadRunner) - Experience with CI/CD pipelines - Understanding of data validation and model evaluation metrics - Testing of AI/ML / GenAI applications - API Testing (Postman / REST Assured) - Test Automation (Selenium / PyTest / Playwright) - Python / Java (for test scripting) - Understanding of LLMs, Chatbots, and AI workflows - Test Case Design & Test Planning - Defect Tracking Tools (JIRA, Bugzilla) Core Responsibilities: Perform White Box Testing: validate internal logic, code coverage, and workflows - Perform Black Box Testing: validate functionality, UI/UX, and system behavior - Test AI applications including chatbots, voice bots, and automation systems - Validate LLM outputs, prompt responses, and edge cases - Conduct API testing, integration testing, and regression testing - Design and execute test cases, test plans, and automation scripts - Identify, log, and track defects through resolution - Work closely with developers, AI engineers, and product teams - Ensure performance, scalability, and reliability of applications . .
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.