Senior Software Development Engineer in Test (Sr. SDET)

TestVagrant -
Bengaluru, Karnataka

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Job details

Full-time

Qualifications

BCS
Computer Science
Mobile applications
Test automation
Analysis skills
Bachelor's degree
JavaScript
REST
APIs
Software testing
Agile
Integration testing
TypeScript
Communication skills
Debugging
Mobile testing
SDLC

Full job description

Job Information

Department Name

Engineering

Date Opened

05/05/2026

Job Type

Full time

Industry

IT Services

City

Bangalore North

Province

Karnataka

Country

India

Postal Code

560038

Job Description

Position: Sr SDET (Sr Software Development Engineer in Test)

We are looking for a Sr. SDET (5 –9 years) with strong core testing fundamentals, hands-on automation expertise, and a consultative mindset to lead quality initiatives for large-scale products. The role requires ownership across web, API, and/or mobile testing, balancing manual exploratory/UAT testing with automation strategy and execution, while working closely with product and engineering stakeholders in an Agile environment.

Requirements

Design, develop, and maintain automated test frameworks and scripts using TypeScript/JavaScript for:
- Web applications (Playwright / WebdriverIO)
- APIs (modern API automation tools/frameworks)
Plan and execute comprehensive test strategies, including test plans, test cases, UAT cycles, and release validation.
Perform functional and exploratory testing across web, API, and mobile layers to identify issues early in the SDLC.
Drive API testing and validation, identifying functional defects, contract gaps, REST standard violations, versioning inconsistencies, and documentation issues.
Collaborate closely with Developers, Product Managers, and stakeholders to clarify requirements, validate expected behavior, and resolve defects.
Actively participate in Agile ceremonies (sprint planning, stand-ups, reviews, retrospectives) and contribute to sprint quality goals.
Lead and mentor SDETs, ensure execution excellence, and take ownership of deliverables.
Create and maintain test metrics, defect dashboards, and progress reports, and communicate status effectively to client stakeholders.
Continuously evaluate and implement best practices in testing, automation, and quality engineering.
Contribute to improving testing processes, standards, and methodologies from a consulting perspective.

Qualifications & Core Skills (Must-Have):

6+ years of experience as an SDET with strong hands-on testing experience.
Proficiency in TypeScript / JavaScript for test automation.
Solid experience in web, API, and/or mobile application testing.
Hands-on experience with automation tools such as:
- Web: Playwright or WebdriverIO
- API: Any modern API automation framework or Mobile: Appium (preferably with WDIO)
Strong understanding of software testing principles, test design techniques, and defect lifecycle.
Good understanding of REST APIs, HTTP methods, status codes, payload validation, and integration testing concepts.
Experience in creating test plans, test strategies, release plans, and owning end-to-end test execution.
Strong analytical, problem-solving, and debugging skills.
Excellent communication and collaboration skills, especially in client-facing environments.
Ability to work effectively in a fast-paced Agile environment with minimal supervision.
Bachelor’s degree in Computer Science, Engineering, or a related field.

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Job Information

Job Description

Requirements

Qualifications & Core Skills (Must-Have):

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