Senior SDET Automation Engineer

Cuboid IT Solutions

Washington, District of Columbia, USFull-timeSeniorPosted Recently

SeleniumAppiumTestNGREST AssuredJavaAWSJIRACI/CDBDDManual Testing

Best fit for

This role is best for senior QA engineers or SDETs with hands-on experience in Selenium, Mobile automation (Appium / Espresso / XCUITest), BDD (Cucumber / SpecFlow), REST API testing open to working from Washington, District of Columbia, US.

Skills you need for this role

Detected from the job title, description, and tags.

Automation skills

Selenium — Still the most-asked browser automation framework in QA interviews and legacy suites.
Mobile automation (Appium / Espresso / XCUITest) — Required for teams shipping native or hybrid mobile apps.
BDD (Cucumber / SpecFlow) — Used when product + QA collaborate on executable specs.

API / backend testing

REST API testing — Almost every QA role now expects you to validate JSON contracts and status codes.
RestAssured — Common Java-first API automation library, often paired with TestNG.

CI/CD and DevOps

AWS — Common cloud target for test infra + service integration testing.

Programming languages

Java — Dominant language for enterprise QA + Selenium/RestAssured stacks.

Domain & process

Performance testing (JMeter / k6 / LoadRunner) — Different discipline from functional QA — expect scenario and metrics questions.
Test management (Jira / Zephyr / TestRail) — Process fluency — writing test cases, tracing coverage, and reporting defects.
AI in testing — Employers increasingly ask how you use AI copilots to speed up QA work.

Job description

Senior SDET Automation Engineer Are you a hands-on Senior SDET with deep expertise in UI, API, and Mobile Automation? We’re looking for a seasoned professional to join our team and drive quality across enterprise and e-commerce platforms. Location: East Coast (Must be willing to attend quarterly PI Planning in person) Key Skills & Experience ✅ 10+ years of hands-on experience in Automation Testing ✅ Strong expertise in Selenium, Cucumber, TestNG, Appium, WebDriverIO ✅ Advanced Java concepts (multi-threading, POJO, scripting) ✅ Mobile Automation: Android/iOS/XCUITest/XCTest/Appium (Native & Hybrid apps) ✅ API Automation using Rest Assured (GET/POST/PUT/DELETE, JSON/GSON) ✅ Experience with framework design, enhancement, and custom reporting (HTML, BDD, Kibana, dynamic dashboards) ✅ Cloud & CI/CD integration with automation pipelines (auto upload/delete apk/ipa) ✅ Hands-on experience with AWS, Mainframe testing, ADA & PCI compliance ✅ Strong debugging skills using Charles Proxy ✅ Collaboration with DevOps, SRE, and Engineering teams ✅ Experience with AI-assisted tools like GitHub Copilot & Codium (qodo) ✅ Advocate of Shift-Left Testing practices ️ Responsibilities Build, maintain, and enhance UI & API automation frameworks Create and execute automated & manual test cases Develop test plans, manage defects, and report results using JIRA Validate functional, performance, and load requirements Mentor team members on automation best practices Collaborate across multiple teams and projects Regards, Arshiya

Job highlights

•Role: Senior SDET Automation Engineer
•Company: Cuboid IT Solutions
•Location: Washington, District of Columbia, US
•Type: Full-time
•Experience: Senior
•Seniority: Senior
•Posted: Recently

Key skills: Selenium · Appium · TestNG · REST Assured · Java · AWS · JIRA · CI/CD · BDD · Manual Testing

How to prepare for this interview

A 5-step prep plan tailored to this job's stack.

1Revise Selenium deeply — locator strategy, waits, parallelisation, and how you'd structure the framework from scratch. Selenium interview Q&A →
2Read through the general QA/SDET interview prep guide to refresh core testing concepts. Job Interview Prep →
3Practice API-testing scenarios — auth flows, contract validation, and running collections in CI. API testing Q&A →
4Run a senior-level mock interview covering system design for test frameworks and CI strategy. AI Mock Interview →
5Run your CV through the ATS review so it clears keyword filters for this role before you apply. Resume ATS Review →

Likely interview questions for this role

Tuned to the stack we detected on this job.

Q1.Explain the Page Object Model and how you'd structure it in Selenium.
Q2.How do you handle dynamic waits without using Thread.sleep in Selenium?
Q3.How do you stabilise mobile automation across iOS + Android device farms?
Q4.What's the trade-off between BDD and plain unit-style automation frameworks?
Q5.How do you design a test suite for a REST API from an OpenAPI spec?

Rehearse with AI Mock Interview Full interview prep guide

Salary context

Compensation not disclosed.

Cuboid IT Solutions hasn't disclosed a salary range for this senior role. Check our QA/SDET salary benchmarks to anchor your ask for Washington, District of Columbia, US.

See QA/SDET salary benchmarks →