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 all over Brazil!

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 the 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.

• Demonstrated expertise in Playwright automation framework
• Advanced proficiency in JavaScript or TypeScript
• Proven experience designing and implementing CI/CD pipeline architectures
• Comprehensive knowledge of REST API testing methodologies and tools
• Exceptional communication and articulation capabilities
• Demonstrated ability to provide constructive challenge and articulate perspectives with confidence in technical forums
• Advanced analytical capabilities to identify trends and patterns in defect data
• Commitment to embracing emerging technologies, including artificial intelligence and innovative testing methodologies
• Demonstrated patience and composure in complex technical environments
• Strong engineering mindset with exceptional problem-solving acumen
• Ability to function as an expert end-user and translate business requirements into technical solutions
• Established leadership and thought leadership credentials within the quality engineering domain

Nice-to-Have Qualifications:

• Demonstrated experience mentoring and coaching junior-level engineers or being a role model to senior team members
• Substantive experience with agile methodologies, including Scrum and Kanban frameworks
• Proficiency in DevOps practices and containerization technologies such as Docker
• Hands-on experience with cloud platforms including AWS or Azure
• Technical proficiency with the K6 load testing framework
• Experience with enterprise CI/CD tools such as Jenkins or Harness 
• Experience with JMeter for performance and load testing

#LI-Remote 
#LI-JM1

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.