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STL and STL Digital

Posted 25 Apr 2026

QA Lead

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Team
Optical Network Business
Posted
25 Apr 2026

About the role

Role Specification 

Role Description

We are looking for a Test Lead to define and drive the end-to-end QA strategy for our AI-powered platform. This role involves testing components across the stack—including ML models/backend, backend services, and frontend interfaces—to ensure accuracy, performance, security, and reliability. You will lead a team of testers, collaborate cross-functionally, and build automation pipelines aligned with CI/CD practices.

Role Title

SW QA Engineer/Tester

Role Purpose

What the role entails

(Key Responsibilities)

Test Strategy & Planning
  • Define and own the comprehensive test plan for ML inference, backend workflows, and frontend user experience.

  • Identify test scenarios for real-time sensor data pipelines, anomaly/event detection, historical playback, and UI s/configs.

  • Design test cases with focus on modularity, reusability, and traceability to requirements.

  • Define and track test coverage, maintain regression test suites, and handle test data design.

ML Model Testing
  • Validate ML outputs (event classification, anomaly scores) against labeled test datasets.

  • Perform accuracy testing, A/B comparison, drift detection, and model regression checks.

  • Test model integration in real-time pipelines (latency, fault tolerance, failover behavior).

Backend & API Testing
  • Validate backend APIs that consume ML outputs, transform data, and expose events to the UI.

  • Test REST/gRPC endpoints, data transformations, streaming services (Kafka), and storage layers (PostgreSQL, Redis).

  • Design load, concurrency, and recovery tests for backend services.

Frontend Testing
  • Verify UI correctness for event visualization, timeline navigation, and control tools.

  • Automate UI workflows using tools like Cypress, Playwright, or Selenium.

  • Ensure responsiveness, accessibility, and data consistency in real-time dashboards.

Automation & DevOps Alignment
  • Lead setup of test automation pipelines integrated with CI/CD (GitHub Actions, GitLab CI, etc.).

  • Own the implementation of smoke, sanity, regression, and performance suites.

  • Collaborate with DevOps for observability in test environments, test parallelization, and reporting.

Leadership & Collaboration
  • Mentor QA engineers and drive best testing practices across the platform.

  • Collaborate with ML, backend, frontend, and product teams to review requirements and raise quality gates.

  • Drive root cause analysis and support release readiness with QA sign-off.

What we are looking for in you

(Skills, Knowledge, Special Attributes, Mobility)

  • 4 years in software testing with at least 1 years in a lead role.

  • Experience testing ML model pipelines, data-driven APIs, and real-time UI platforms.

  • Strong command over test design techniques, risk-based testing, and shift-left testing practices.

  • Proficient in Python or JavaScript for writing automation scripts.

  • Hands-on with tools such as Postman, JMeter, Pytest, Cypress, or Playwright.

  • Familiarity with Kafka, REST/gRPC, Docker, and Linux environments.

  • Knowledge of CI/CD, test versioning, and defect lifecycle management tools (e.g., JIRA, TestRail).

  • Experience with model explainability testing (SHAP, LIME) or model monitoring tools.

  • Exposure to edge device testing, cloud deployments (GCP), and real-time event handling systems.

  • Knowledge of performance engineering and security testing basics.

Location

Aurangabad

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