Role OverviewThe Team is looking for a Senior Software Engineer in Test (SDET) to help build and assure the next generation of intelligent, agentic products and platforms. This is a hands‐on senior engineering role for someone who combines deep automation expertise with strong software engineering fundamentals and practical experience testing AI‐powered and agent‐based systems in production‐grade environments. This role is adecuado for a builder who enjoys solving complex quality challenges, designing scalable automation strategies, and raising the engineering bar across teams. We are particularly interested in candidates who can apply innovative thinking, strong ownership, and modern quality engineering practices to validate agentic applications, LLM‐powered workflows, APIs, user journeys, and end‐to‐end platform reliability. We are seeking a talented Senior Software Development Engineer in Test (SDET) to define and implement an effective automation and quality strategy within an Agile team. This role will validate application functionality, resilience, and business outcomes using modern testing methodologies, strong engineering discipline, and best practices in continuous integration and delivery.RequirementsOwn end‐to‐end quality engineering for agentic applications, intelligent workflows, APIs, user interfaces, and supporting platform services.Design, develop, and maintain robust automation frameworks for UI, API, integration, regression, and system‐level testing.Define test strategies for AI and agent‐based systems, including workflow validation, response quality, tool usage, guardrails, reliability, and failure handling.Build automated quality gates for CI/CD pipelines and ensure high‐confidence releases through continuous testing.Partner closely with software engineers, product managers, architects,

Cypress,



REST Assured, or equivalent.Experience integrating automated tests into CI/CD pipelines and quality gates.Understanding of test approaches for LLMs, retrieval workflows, agent orchestration, and non‐deterministic systems is highly desirable.Familiarity with observability, logging, test data management, performance testing, and service virtualization is a plus.Leadership & MindsetInnovative thinker who challenges conventional approaches and introduces better ways to assure quality at scale.Strong sense of ownership, accountability, and follow‐through from test strategy through delivery outcomes.Able to influence quality culture across teams and mentor others in modern automation and engineering excellence.Must-Have / Good to HaveStrong automation engineering background with hands‐on framework design and coding.Experience with LLM evaluation, prompt/workflow validation, and agent guardrail testing.Hands‐on expertise in Playwright for UI and end‐to‐end automation.Exposure to performance, resiliency, and observability testing for AI systems.Proven experience testing APIs, integration flows, and CI/CD quality gates.Knowledge of retrieval‐based systems, tool‐calling workflows, and non‐deterministic test patterns.Experience testing agentic AI applications, including workflow accuracy, tool usage, and failure handling.Experience with service virtualization, test data management, and synthetic test environments.Strong programming skills in Java, Python, or similar languages for automation.Familiarity with cloud‐native testing in distributed/event‐driven systems.Ownership mindset, innovative thinking, and ability to drive quality improvements end to end.Mentoring experience and contribution to quality engineering best practices across teams.

? Senior sdet (Nezahualcóyotl)
? fulcrumdigital
? Nezahualcóyotl

📌 Senior Sdet (Nezahualcóyotl)
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