SDET - Software Development in Test, AWS, Java, AI Tools, LLM

SES

Washington, District of Columbia, USFull-timeMidPosted Jul 2, 2026

SeleniumPostmanREST AssuredJenkinsJavaPythonAWSSQLJIRA

Best fit for

This role is best for mid-level QA engineers with hands-on experience in Selenium, BDD (Cucumber / SpecFlow), REST API testing, Postman / Newman 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.
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.
Postman / Newman — Standard tool for API exploration and shareable collections.
RestAssured — Common Java-first API automation library, often paired with TestNG.

CI/CD and DevOps

Jenkins — Legacy CI still widely deployed — expect pipeline-as-code questions.
AWS — Common cloud target for test infra + service integration testing.

Programming languages

Java — Dominant language for enterprise QA + Selenium/RestAssured stacks.
Python — Popular for API testing, data validation, and Playwright/Pytest suites.
SQL — Data validation and back-office QA rely on solid SQL.

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

SDET - Software Developer in Test Type: W2 With Benefits - No C2C Location: Washington, DC - 3 days per week onsite Top 5 Technical Skills:

Java
Selenium
SQL
AWS
Sauce Labs
Python (read and automate)
Testing (Automation Testing, Functionality Testing, Regression Testing, Smoke Testing)
Python, Read and some coding
AI Tools and some expereince
LLM some experience Job Description: KEY JOB FUNCTIONS - Facilitates the design and development of automated test methodologies, collaborating with engineering and product teams to identify impacts of changes or enhancements - Leverages coding expertise in the development and maintenance of test tools and frameworks to validate integration and functional tests of the system - Verifies that the new functionality and/or other non-functional requirements have been satisfied, and component calculations are implemented in the software as per the Requirements - Enhances overall testing capabilities, test design and automation SPECIALIZED KNOWLEDGE & SKILLS - Expertise in Regression Testing, Smoke/Sanity Testing, Positive and Negative Testing, Black Box Testing, Database Testing. - Anticipates product development team needs for specialized test tools and frameworks. - Strong programming experience in Java, Python/R, and Object-Oriented Programming (OOPs) concepts. - Familiarity with SAS and experience with SQL - AWS experience: S3, Lambda and Step functions, EC2/EMR, SNS/SQS, DynamoDB/Postgres SQL/Redshift/RDS - Proficiency in Unix/Linux environment. - Hands on experience implementing test automation for enterprise applications (web, SOA, ETL, and backend, API) - Proficiency with open-source automation tools (Selenium, Selenide, Cucumber, Gherkin) - Experience with Continuous Integration/Continuous Delivery (Jenkins) - Experience with build tools (Maven, Nexus) - Expertise with version control tools (Bitbucket), and experience with project management tools (Jira) - Good understanding in test automation of REST API Services using POSTMAN/REST Assured library. - Extensive experience of Creating, Modifying and Maintaining new and existing Automation Framework Models, such as Behavior Driven, and Data Driven, by using Page Object Model and Page Factory Design. - Knowledge of mortgage industry mathematics is highly desirable. - Excellent communication skills, oral and written. - Capable of explaining and documenting complex systems. - Conscientious attention to detail, accuracy, and efficiency in analytical work. Benefits: SES hires W2 benefitted and non-benefitted consultants. Our contract employee benefits include group medical dental vision life LT and ST disability insurance, 21 days of accrued paid time off, 401k, tuition reimbursement, performance bonuses, paid overtime, and more. Please contact me to discuss the details of this position further.
Please forward resume directly to for immediate consideration - rstarinieri at sesc .com I look forward to speaking with you soon! Robin Starinieri Director of Recruiting Systems Engineering Services

Job highlights

•Role: SDET - Software Development in Test, AWS, Java, AI Tools, LLM
•Company: SES
•Location: Washington, District of Columbia, US
•Type: Full-time
•Experience: Mid
•Seniority: Mid
•Posted: Jul 2, 2026

Key skills: Selenium · Postman · REST Assured · Jenkins · Java · Python · AWS · SQL · JIRA

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 →
2Practice API-testing scenarios — auth flows, contract validation, and running collections in CI. API testing Q&A →
3Warm up on SQL joins, group-bys, and window functions — most QA rounds include a data-validation query. SQL Q&A →
4Do at least one AI mock interview end-to-end so you're comfortable narrating your answers under time. 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.What's the trade-off between BDD and plain unit-style automation frameworks?
Q4.How do you design a test suite for a REST API from an OpenAPI spec?
Q5.How do you handle authentication (OAuth / JWT) inside automated API tests?

Rehearse with AI Mock Interview Full interview prep guide

Salary context

Compensation not disclosed.

SES hasn't disclosed a salary range for this mid-level role. Check our QA/SDET salary benchmarks to anchor your ask for Washington, District of Columbia, US.

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