Senior Software Development Engineer in Test (Sr. SDET)

TestVagrant Technologies Pvt. Ltd.; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

TestVagrant Technologies Pvt. Ltd. in Bengaluru is seeking a Senior Software Development Engineer in Test (Sr. SDET) with 6+ years of experience. The role involves leading quality initiatives for large-scale products, focusing on web, API, and mobile testing. You will collaborate with Developers and stakeholders in an Agile environment and mentor fellow SDETs. Required skills include hands-on automation expertise with tools like Playwright, WebdriverIO, and Appium. The position offers a dynamic work environment in a fast-paced Agile setting.

Qualifications

• 6+ years of experience as an SDET with hands-on testing experience.
• Solid experience in web, API, and mobile application testing.
• Strong understanding of testing principles, test design techniques, and defect lifecycle.

Responsibilities

• Lead quality initiatives for large-scale products across web, API, and mobile testing.
• Plan and execute comprehensive test strategies, including test plans and release validation.
• Collaborate closely with Developers and Product Managers to clarify requirements.

Skills

Core testing fundamentals

Automation expertise

Web application testing

API testing

Mobile testing

Agile experience

Test strategy planning

Communication skills

Problem-solving skills

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Tools

Playwright

WebdriverIO

API automation tools

Appium

Job description

Senior Software Development Engineer in Test (Sr. SDET)

Bangalore North, India | Posted on 05/05/2026

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

• 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.
• 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
• 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.