Staff Software Development in Test Engineer (SDET)

Who We Are

Cint is a global software leader in technology-enabled digital insights and research technology. The Cint platform automates the insights-gathering process so that companies can gain access to insights faster with unparalleled scale. Cint has one of the world’s largest consumer networks for digital survey-based research, made up of over 239 million engaged respondents across more than 130 countries. Over 4,600 insights-driven companies use Cint to accelerate how they gather consumer insights and supercharge business growth.

Overview

We are looking for an exceptional and highly experienced Staff Software Development Engineer in Test (SDET) to join our quality engineering team. This is a crucial individual contributor role responsible for designing, building, and maintaining advanced test automation frameworks, driving innovative testing practices, and significantly raising the quality bar across the entire development lifecycle. The ideal candidate is a deep technical expert and a proactive mentor.

This is a remote role in all over Brazil geolocation!

Key Responsibilities

Technical Design & Framework Ownership

• Architect and Develop: Design, develop, and implement highly scalable, reliable, and maintainable test automation frameworks from scratch across multiple platforms (e.g., web, API, backend services).

• Technical Authority: Serve as the technical authority on testing methodologies, tools, and best practices. Evaluate and integrate new automated tools and technologies into the existing test infrastructure.

• Code Quality: Drive high standards for test code quality, structure, and maintainability, including code reviews for automation scripts and framework contributions from SDET team.

• Non-Functional Testing: Design and execute advanced non-functional tests, including performance and load tests, and integrate them into the CI/CD pipeline.

Quality Strategy & Process Improvement

• Quality Advocate: Partner with development and product teams to integrate testing practices early in the development lifecycle (Shift-Left). Advocate for and implement robust quality gates and coverage metrics.

• CI/CD Integration: Own and optimize the integration of automated tests into the Continuous Integration/Continuous Delivery (CI/CD) pipeline to ensure rapid feedback and zero defect leakage to production.

• Troubleshooting: Expertly debug and analyze complex system failures, identifying root causes in both application code and test infrastructure.

Mentorship & Leadership

• Mentorship: Coach and mentor junior and mid-level SDETs and software engineers on technical design, testing strategy, and effective automation techniques.

• Documentation: Create and maintain comprehensive documentation for test strategies, automation frameworks, and best practices to enable self-service quality for all engineers.

• Technical Strategy: Contribute significantly to the long-term quality roadmap and technology choices alongside Engineering Managers and Principal Engineers.

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science or a related technical field.

• Minimum of 7+ years of professional experience in a hands-on SDET, Automation Engineer, or Quality Engineer role.

• Expert proficiency in at least one object-oriented programming language (e.g., Python, Java, C#, Go) used for building production-level code and automation frameworks.

• Proven experience designing and scaling test automation frameworks (e.g., using Selenium, Cypress, Playwright, or equivalents) for complex, large-scale applications.

• Deep practical knowledge of CI/CD tools (e.g., Jenkins, GitLab CI, GitHub Actions) and containerization technologies (e.g., Docker, Kubernetes).

• Strong understanding of software architecture, data structures, and algorithms.

• Excellent ability to communicate technical concepts clearly and influence cross-functional technical teams.

Preferred Qualifications

• Experience in a domain-specific area (e.g., cloud infrastructure, machine learning, financial systems).

• Experience with advanced mocking/stubbing tools and service virtualization.

• Certifications in cloud technologies (AWS, Azure, or GCP).

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Our Values

Collaboration is our superpower

• We uncover rich perspectives across the world
• Success happens together
• We deliver across borders.

Innovation is in our blood

• We’re pioneers in our industry
• Our curiosity is insatiable
• We bring the best ideas to life.

We do what we say

• We’re accountable for our work and actions
• Excellence comes as standard
• We’re open, honest and kind, always.

We are caring

• We learn from each other’s experiences
• Stop and listen; every opinion matters
• We embrace diversity, equity and inclusion.

 

More About Cint

We’re proud to be recognised in Newsweek’s 2025 Global Top 100 Most Loved Workplaces®, reflecting our commitment to a culture of trust, respect, and employee growth.

In June 2021, Cint acquired Berlin-based GapFish – the world’s largest ISO certified online panel community in the DACH region – and in January 2022, completed the acquisition of US-based Lucid – a programmatic research technology platform that provides access to first-party survey data in over 110 countries.

Cint Group AB (publ), listed on Nasdaq Stockholm, this growth has made Cint a strong global platform with teams across its many global offices, including Stockholm, London, New York, New Orleans, Singapore, Tokyo and Sydney. (www.cint.com)

 

Additionally, in a world of AI, we want our candidates to understand our approach to the use of AI during the interview and hiring process, so we'd appreciate you reading our AI usage guide.