Senior Software Development Engineer in Test – AI-Assisted Testing

Job not on LinkedIn

🔥 6 minutes ago

💃 Latin America – Remote

⏰ Full Time

🟠 Senior

⚙️ Software Development Engineer in Test (SDET)

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Tight Line

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2024

🏢 Enterprise

🤝 B2B

Enterprise • B2B

Tight Line is an international software development company formed in 2024 from the merger of Rapid River and Cactus Code. The company delivers remote, enterprise-grade web and software development services and solutions for clients worldwide, focusing on full‑stack development (Java, React, Angular, PHP) and enterprise integrations. Tight Line operates as a distributed team providing custom development projects and technical staffing to business clients across multiple regions.

📋 Description

• Translate user stories and product requirements into clear test cases covering expected behaviour, edge cases and failure scenarios • Execute functional, integration and regression tests across web applications, APIs and backend services • Investigate defects, document reproducible findings and work with developers to verify fixes • Prepare release certification reports summarising test results, coverage, outstanding defects and release risks • Write and maintain automated tests using the existing framework and contribute to CI/CD integration • Use LLMs and AI agents for test case generation, defect analysis, regression testing and test optimization • Review AI-generated outputs for accuracy, relevance and coverage • Collaborate with developers, product colleagues and stakeholders to clarify requirements and communicate quality concerns • Mentor junior colleagues through practical guidance, test reviews and knowledge sharing • Recommend improvements to testing framework, AI workflows and quality processes • Spend approximately 70% of the role on hands-on delivery and 30% mentoring junior colleagues; the position has no direct reports

🎯 Requirements

• 5+ years of experience in QA, quality engineering or software development • Strong software testing and test automation experience • Ability to design meaningful tests from requirements and explain how test results inform release decisions • Hands-on programming experience in an object-oriented language; Python preferred • Practical experience with test automation frameworks and CI/CD tools • Strong understanding of web browsers, client-server behaviour, APIs and security considerations relevant to testing • Experience testing web-based products, SaaS platforms or comparable applications • Practical experience using LLMs or AI agents in testing, from professional work or a practical project • Ability to explain personal contribution, evaluate AI-generated results and identify limitations • Experience supporting or mentoring less experienced engineers • Clear written and spoken English for collaboration with an internationally distributed team • Ability to work consistently during the required US Pacific schedule • Previous production deployment of autonomous testing agents or agentic CI/CD pipelines is not required

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