Sr. Mobile Engineer

Sr. Mobile Engineer PureSpectrum•serra, estado do espírito santo, Brazil Descripción da vaga Who We Are: PureSpectrum is a rapidly growing market research and insights platform that simplifies technology, allowing researchers to gather and activate consumer data without disruption. As the go-to solution for high-quality multi-sourcing and fully automated research, PureSpectrum is helping to shape the future of insights. Our Marketplace facilitates over 65 million online interviews annually, and our proprietary respondent-level scoring system—PureScore—continues to set the industry standard for data quality and reliability. Recognized globally for both innovation and culture, PureSpectrum has been named one of Newsweek’s Global Most Loved Workplaces (2023–2025), included in Inc.’s Best Workplaces, certified as a Great Place to Work (2022–2025), and featured on Built In’s Best Places to Work list (2023–2025). PS is rapidly becoming the leading solution for quality multi-sourcing and end-to-end automated research solution. The Opportunity: PureSpectrum is seeking a Senior Engineer to join our high-impact Product & Engineering team of passionate engineers. You will be responsible for designing, developing, testing, and maintaining a mobile application. This is a fast-paced role within our global Product & Engineering organization, reporting directly to the Engineering Manager. The ideal candidate is technically strong, detail-oriented, and thrives in a collaborative, agile environment. You’ll work closely with cross-functional stakeholders—including product managers, QA engineers, and developers across geographies—to deliver scalable, reliable, and innovative solutions. Your Responsibilities: Build modern, performant mobile applications for iOS and Android using Flutter. Implement client-side data consumption and display for new features utilizing RESTful API endpoints using .NET core. Test drive development and write Unit/Integration tests. Design and optimize database structure using MySQL and write optimized queries for better performance. Follow best practices in version control (Git), CI/CD and cloud deployments. Drive team performance by leading and empowering members to develop and execute innovative solutions. Qualifications: Bachelor's degree in Computer Engineering, Computer Science or a similar discipline from any recognized University. 3-5 years of hands-on experience with mobile development technologies, ideally Flutter/Dart. Experience with Firebase. Experience of building back-end applications using .NET Core and ORM like Entity Framework (or other Object-Oriented language/ORM). Experience with MVC and MVVM design patterns. Knowledge of C#, Dart, JSON, Git, HTML, YAML, REST. Knowledge of Linux and command line. AWS Cloud Expertise: Proven experience designing, deploying, and maintaining scalable and reliable cloud solutions leveraging core AWS services, including EC2/Beanstalk, RDS, SQS, SES, SNS, S3 and Lambda. Strong understanding of relational databases, preference to MySQL. Knowledge of build pipelines (e.g., AWS CodePipeline, Bitbucket, GitLab). Excellent communication and collaboration skills. Nice to Have Experience in Agile/Scrum teams. Comfort with fast-moving teams. Comfort with working across time zones and with distributed teams. Knowledge of Shell script, JavaScript, and Native mobile development for Android/iOS is a plus. PureSpectrum Perks: Join PureSpectrum and become part of our innovative culture (PSX), where we prioritize your professional growth and foster a strong sense of team connection. You'll be part of a rewarding, high-standard environment where team members genuinely enjoy regular celebrations and events—a truly exceptional experience at every level. PureSpectrum is an equal opportunity employer. Applicants will not be discriminated against because of race, color, creed, sex, sexual orientation, gender identity or expression, age, religion, national origin, citizenship status, disability, ancestry, marital status, veteran status, medical condition, or any protected category prohibited under the law. #J-18808-Ljbffr