AI Test Engineer (m/f/d)

About The Role

We are looking for an AI Test Engineer to assure the quality, safety, and reliability of AI‑enabled software used in connected product experiences.

You will work at the intersection of AI application quality, automated testing, APIs, cloud and edge services, and connected devices.

This is a hands‑on role for a specialist who can turn ambiguous product behavior into precise, repeatable evaluation scenarios and clear engineering feedback.

You will collaborate with software, machine learning, UX, hardware and product teams to validate AI‑driven user journeys from prompt or voice input through orchestration, tools, services, and device responses.

Your work will make prototypes and product demonstrations reproducible, observable, and ready for release decisions.

What You Will Do

• Lead end‑to‑end quality engineering for AI‑enabled applications, including conversational and agentic workflows, model integrations, orchestration layers, APIs, user interfaces, and connected‑device experiences.
• Design and execute structured evaluations for LLM and agent‑based behavior: functional correctness, instruction following, tool use, grounding, safety boundaries, consistency, failure handling, and regression risk.
• Prototype, build and maintain automated test solutions, including reusable test data, evaluation datasets, test harnesses, API collections and release‑validation pipelines.
• Translate product requirements and real user journeys into deterministic and exploratory test scenarios, acceptance criteria and measurable quality signals.
• Validate multi‑turn and multimodal interaction flows, including speech or text input, device controls, audio or media‑related features and context‑aware personalization when applicable.
• Test REST APIs and distributed services, including request/response contracts, schemas, authentication, error handling, backward compatibility, telemetry and observability.
• Investigate defects using logs, traces, test results and system behavior; isolate root causes, create high‑quality defect reports and verify fixes.
• Review code changes and collaborate with developers on testability, unit‑test coverage, CI quality gates and practical release criteria.
• Prepare and validate integrated software‑and‑device environments across Linux, Windows, mobile platforms, cloud services, local services and networked hardware.
• Communicate quality risk, test evidence, known limitations and release readiness clearly to technical and non‑technical stakeholders.
• Apply AI‑assisted engineering tools in your daily work to generate and refine test scenarios, accelerate automation, analyze failures, explore edge cases and improve technical documentation.

Critically review and validate all AI‑generated output.

• What You Need To Be Successful
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Electrical Engineering or a related technical field.
• 5+ years of hands‑on experience in software quality engineering, test automation, systems integration or software validation.
• Demonstrable experience testing AI‑enabled software products, such as LLM applications, conversational systems, agentic workflows, recommendation systems or ML‑powered features.

General manual‑software‑testing experience alone is not sufficient.

• Strong understanding of how to evaluate non‑deterministic AI behavior and convert it into repeatable, evidence‑based quality checks.
• Hands‑on experience with Python and automated testing frameworks; confidence reading and contributing to production‑adjacent test code.
• Practical experience with REST APIs, JSON, schema/contract validation and test automation for distributed services.
• Experience with Git‑based development, pull‑request review, issue tracking, CI/CD and technical documentation.
• Strong troubleshooting skills across application, service, network and device layers; comfortable working with logs, traces, and telemetry.
• Experience using AI‑assisted engineering tools responsibly to improve test design, automation, debugging and documentation.
• Ability to communicate defects and quality trade‑offs precisely, work independently and operate effectively when requirements evolve.
• Bonus Points if You Have
• Experience with LLM evaluation frameworks, prompt testing, retrieval‑augmented generation, tool/function calling, agents, or model‑provider integration.
• Experience validating AI features in embedded, automotive, consumer‑electronics, audio, mobile, or other connected‑device environments.
• Experience with speech interfaces, text‑to‑speech, speech recognition, audio or media controls, personalization, or multimodal user experiences.
• Experience with cloud platforms and local/edge deployment, containers, service observability and test‑environment management.
• Experience with Java Script or Type Script, Bash, mobile‑app testing, or hardware‑in‑the‑loop/system‑integration testing.
• What Success Looks Like
• AI‑enabled user experiences are evaluated systematically before demos and releases, with clear evidence for expected and edge‑case behavior.
• High‑risk regressions in model behavior, prompt logic, orchestration, APIs and device integration are detected early.
• Test automation and evaluation assets become reusable, maintainable and part of delivery workflows.
• Engineering teams have an accurate, actionable view of quality risks, release readiness and known limitations.
• What Makes You Eligible
• You have strong written and verbal communication skills in English.
• You can work at the Garching, Germany location.

What We Offer

• Flexible work environment with a culture encouraging work‑life integration and collaboration in a global environment.
• Access to employee discounts on world‑class HARMAN/Samsung products (JBL, Harman Kardon, AKG, etc.).
• Extensive training opportunities through our own HARMAN University.
• An inclusive and diverse work environment that fosters and encourages professional and personal development.
• “Be Brilliant” employee recognition and rewards program.
• Work on best‑in‑class emerging technologies and an atmosphere that motivates you to give your best.

HARMAN is proud to be an Equal Opportunity employer.

HARMAN strives to hire the best qualified candidates and is committed to building a workforce representative of the diverse marketplaces and communities of our global colleagues and customers.

All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

HARMAN attracts, hires, and develops employees based on merit, qualifications and job‑related performance.

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