Software Development Specialist II (iOS Security SDK)

#### Company Description Experian is a global data and technology company that drives opportunities for people and businesses around the world. We operate in a range of markets, such as financial services, healthcare, automotive, agribusiness, insurance, among others. Experian invests in people and in new advanced technologies to unleash the power of data. We have an amazing team of 25,200 employees in 32 countries. Our uniqueness lies in valuing yours. Experian's culture, which is people-centered, inclusive and purpose-driven, is recognized by various awards, including World's Best Workplaces™ 2025 (Fortune Global Top 25) and Great Place To Work™ in 26 countries, among others. Check out Experian Life on social media or explore our careers site to understand why. Experian also takes pride in being an employer that promotes equal opportunity and affirmative action. #### Job Description We are looking for a Software Development Specialist II to work on the evolution of the iOS SDK responsible for the secure capture of device and sensor signals, ensuring the integrity of the information collected for authentication, biometrics and fraud prevention solutions. This person will be responsible for developing advanced mechanisms to protect against device compromise, working together with Architecture, Security and Engineering teams to ensure high reliability, performance and scalability of the SDK. **Main responsibilities** - Develop and evolve iOS SDKs using Swift and Objective-C. - Implement jailbreak detection, emulation and runtime manipulation detection mechanisms. - Design and implement security controls for channel protection and device integrity. - Integrate native sensors, such as camera and biometrics, into secure capture and validation flows. - Implement applied cryptography solutions and data protection in transit and at rest. - Ensure compatibility, stability and performance of the libraries distributed to clients. - Take part in the publishing, versioning and monitoring of mobile SDKs. - Support technical investigations related to threats, vulnerabilities and fraud vectors on mobile devices. - Collaborate with multidisciplinary teams to define architecture and secure development best practices. **Technical requirements** - Solid experience with iOS development using Swift and/or Objective-C. - Knowledge of Apple security APIs, such as Secure Enclave, DeviceCheck and Keychain. - Experience with jailbreak detection, root detection and protection against application manipulation. - Knowledge of applied cryptography, digital certification and secure communication. - Experience integrating mobile sensors (camera, biometrics and native devices). - Knowledge of SDK architecture and library distribution for iOS. - Familiarity with CI/CD, versioning and monitoring of mobile applications. - Hands-on experience with offensive and defensive security best practices in mobile applications. **Nice to have** - Experience with Mobile Security, Anti-Fraud or Identity & Access Management. - Knowledge of reverse engineering and mobile instrumentation techniques. - Experience with observability and monitoring frameworks. - Previous work on biometric authentication or digital identity validation products. #### Qualifications **Education** - Completed higher education in Computer Science, Computer Engineering, Information Systems, Software Engineering or related fields. - A postgraduate degree or specialization in Information Security, Mobile Development or Software Architecture will be considered an advantage. **Behavioral competencies** - Analytical thinking and solving complex problems. - Strong sense of ownership and technical quality. - Ability to work collaboratively in multidisciplinary environments. - Security mindset and risk prevention. - Clear communication for discussing technical and architectural solutions. #### Additional Information Serasa Experian is much more than you imagine. With the purpose of creating a better future by expanding opportunities for people and businesses, in Brazil we are more than 4,000 people working in various teams and specialties. Here, every knowledge and diversity complements each other, and you can work on what you love most. We are committed to building an inclusive culture and an environment where people can balance their career with their personal commitments and interests, valuing well-being. We are very committed to being one of the best and most innovative companies to work for in the country, enabling amazing experiences and careers for our people. Our strong people-first approach is recognized externally through various market certifications: we were awarded by Great Place To Work™ in 24 countries and by the international Top Employers certification, and we are recognized as one of the best companies for young professionals and have a 4.6 rating on Glassdoor. Each recognition tells us we are on the right path, providing an increasingly better work environment for our talent. Experian Careers - Creating a better tomorrow together [Find out what it's like to work for Experian by clicking here](https://www.experian.com/careers/)