White Box Automation Test Engineer (API + Web) Sapient, Gurgaon

Legendary Opportunity: White Box Automation Test Engineer (API + Web + Microservices)

Location:

About the Role

rare White Box Automation Engineer

• Code like a senior developer

  ,

• Build enterprise-grade automation frameworks from scratch

  , and

• Master microservices testing at scale

  .

not a typical automation role

strong coding, scripting, and microservices expertise

What You’ll Do

• Architect and implement

  automation frameworks

  for API, Web, and microservices systems.
• Write

  clean, modular, high-performance automation code

  in Java/Python/C#.
• Apply

  white-box testing techniques

  : control-flow coverage, path coverage, mutation testing, fault injection, loop testing.
• Test

  microservices ecosystems

  :
• API gateways & service mesh (Istio, Envoy, Linkerd)
  
• Event-driven systems (Kafka, RabbitMQ, Pub/Sub)
  
• Async workflows, retries, backpressure handling
  
• Build

  mocking/stubbing frameworks

  for complex service interactions (WireMock, Mockito, Hoverfly).
• Integrate automation into

  CI/CD pipelines

  with

  quality gates

  at every commit.
• Debug

  hard-to-find failures

  across code, APIs, containers, and cloud infrastructure.
• Influence

  architecture and design for testability, resilience, and maintainability

  .

Must-Have Skills

• 4.6–7 years

  in White Box Testing/SDET/Automation with

  strong coding proficiency

• Hands-on experience with

  Java/Python/C#/Go

  , and strong

  OOPs, algorithms, design patterns

  knowledge
• Automation framework expertise:

  Selenium, RestAssured, TestNG/JUnit, Cucumber

• Microservices testing experience: API contracts, async workflows, schema validation, service-to-service validations
  
• Strong experience in

  Docker & Kubernetes

• Database proficiency:

  SQL + NoSQL

• CI/CD tools:

  Jenkins, GitLab CI, Azure DevOps

• Advanced debugging: logs, traces, distributed failures
  

Bonus Expertise

• Chaos engineering

  : Gremlin, LitmusChaos
• Performance testing at microservices scale: JMeter, Gatling, Locust
  
• Security testing (OWASP, JWT, OAuth)
  
• Cloud-native testing: AWS/GCP/Azure
  
• Observability tools: Prometheus, Grafana, ELK, Jaeger
  

Code Coverage Mastery

• JaCoCo, Cobertura, Coverage.py, Istanbul/nyc, OpenCover
  
• Integration with SonarQube, Codecov, Coveralls
  
• Ensuring

  statement, branch, path, condition, and mutation coverage

Why This Role is Legendary

• You’ll

  engineer testability into microservices

  , not just validate them.
• You’ll tackle problems

  most senior engineers avoid

  .
• You’ll be the

  go-to engineer

  for debugging complex distributed systems.
• Only

  top-tier automation engineers

  will survive and thrive.

Hello [Candidate Name], only apply if you can code like a senior developer, debug chaos at scale, and thrive on white box testing challenges — this role is not for the faint-hearted.

Publicis Sapient’s elite White Box Testing team in Gurgaon