Principal Software Developer in Test (SDET)
- Level
- Principal
Not stated in the posting: salary, work type, visa.
Open. First seen 3 October 2026.
About the role
About Integrant
For 34 years, Integrant has designed and delivered advanced, business solutions for U.S. enterprises in biotech, medical devices, manufacturing, finance, and related highly regulated industries. Our teams are experts in traditional web and mobile applications, AI/HPC infrastructure support, data engineering, predictive AI, machine learning, and Agentic solutions. We build long-term partnerships—two-thirds of our customers choosing to partner with us 5+ years—by solving mission-critical problems with rigor, empathy, and measurable outcomes.
Job Overview:
This role is vital in ensuring the quality and reliability of our software products by balancing both manual and automated testing methodologies. This position bridges the gap between software development and quality assurance, emphasizing both coding and comprehensive testing expertise. Conduct root cause analysis for defects, and continuously improve testing processes and efficiency.
Duties & Responsibilities:
- Review requirements and design of system to be implemented
- Design and review test cases and test scripts
- Ability to define test case execution priority and impact analysis
- Recommend, implement, and work with test management, defect management, performance, and automation tools
- Log issues and track until closure
- Communicate with project manager regarding project issues, impacts to the schedule, and performance issues
- Able to understand new testing techniques, technologies, and tool
- Work within an agile, self-organizing Scrum team
- Coordinate with the engineers on Result and Defects Status on a regular basis
- provide comprehensive test reports
- SDET: Writing unit test for testing API and business layer
- SDET: Enhancing Testability of the Code
- SDET: Fixing Minor Defects Discovered During Testing
- SDET: Implementing Test Support Features
- SDET: Documenting API endpoints or services to aid both testing and development efforts
- Work with the lead on creating test plan and executing
Requirements
- 6+ years of hands-on experience in software testing
- Hands-on experience in OOP and one or more programming languages: C#, Java, JS, SQL
- Good experience with Selenium, TestNG, Junit, Nunit
- Hands-on experience with multiple types of testing including UI, System/Integration, API, and Agile
- Background in Performance testing is nice to have
- Very Good knowledge in test planning and test strategy design
- Good knowledge in testing estimation techniques
- Understanding of the Agentic Development Life Cycle
- Ability to create workflows with rules and guardrails
- Proficiency in testing AI applications and agentic solutions
- Strong analytical and problem-solving skills with keen attention to detail
- Proficient in English (verbal and written)
- Good work ethics, Team player, positive and self-motivated
- Strong Communication and Interpersonal skills
- Database manipulation skills, mainly in SQL
- Good time-management skills
- Good knowledge of Agile development Methodology and agile testing
- Great attention to detail and organized
- Fair Knowledge about Cloud, ETL and DevOps Concepts
- Flexible and Adaptable to client and project changes
- Behavior-Driven Development (BDD) (e.g., Cucumber, SpecFlow)
- SDET: Advanced programming Good understanding of custom exception, intermediate level in linq , dependency injection and lose coupling to increase testability.
- SDET: Proficient with CI/CD tools such as Jenkins, GitLab
- SDET: Understand common design patterns and architecture patterns
- SDET: Solid understanding of data structures e.g dictionary , list , hashset
- ISTQB CT-GenAI (Certified Tester — AI Testing) Highly preferred
Benefits
- Competitive compensation package
- PTO, full medical and dental coverage, etc.
- Opportunity to travel and work onsite with U.S. customers
- In-house Technical and English training programs
- Dedicated learning time (check out our 4Plus1 Program)
- Interest free loans
- Flexible work schedules
- Perks: events, sponsored lunch, game area, rooftop hangout + more!
What this role asks for
Particular to this role
GitLab · JUnit · Selenium
Rare in Integrant's other 22 open postings.
Standard for QA / testing roles
Test Automation
Common in QA / testing postings at any company.
In most of Integrant's ads
CI/CD
Named in most of its open postings, whatever the role.
Read against Integrant's other open postings on this site.
The team: Software Development
This role is one of 16 open in Software Development.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
CI/CD (12 of 16), Azure (10 of 16), AWS (9 of 16), Agile (8 of 16), Docker (8 of 16), Machine Learning (7 of 16), Python (7 of 16)
OTHER ROLES ON THIS TEAM
- Lead SysOps Engineer posted Aug 13
- Principal Data Scientist - AI & Machine Learning (Databricks) posted Aug 13
- Senior Lead Software Engineer - Java Full Stack posted Jul 29
- Senior Lead Data Engineer - Databricks posted Jul 27
- Lead Backend Engineer (C/C++) posted Jun 22
- Lead Software Engineer - Java Full Stack posted Jun 15
- Lead Data Scientist - AI & Machine Learning posted Jun 11
- Principal Data Scientist - AI & Machine Learning posted Jun 10
- Senior Lead Software Developer in Test (SDET) posted May 14
- Devops & SysOps Architect posted Apr 26
- Lead Software Developer in Test (SDET) posted Apr 21
- Senior Technical Project Lead / .NET posted Apr 8
- Data Architect / Part-Time posted Mar 29
- Senior Technical Lead - .Net Fullstack posted Mar 26
- Principal SysOps Engineer posted Oct 16
From the team and dates on Integrant's own job board.
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